SM0512
DV-RV8500E
DV-RV8500E(UK)
SERVICE MANUAL
PAL
PAL SECAM
DO NOT RESELL OR DIVERT IMPROPERLY.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
DVD VIDEO RECORDER with VIDEO CASSETTE RECORDER
July
2005
Digital Media Division,Yokohama
Table of Contents
1 Safety Precaution for Repair ........... 1-1
1-1
1-2
1-3
1-4
1-5
Cautions ................................................. 1-1
Electrostatic Protection Measures .......... 1-2
Cautions When Handling DVD Drive ....... 1-2
Lead-Free Solder .................................... 1-3
Notes When Using Service Manual ........ 1-4
2 General Description ......................... 2-1
2-1 Overview ................................................ 2-1
2-1-1 Service method ................................... 2-1
2-1-2 Disc information ................................... 2-2
2-2 Features ................................................. 2-4
2-3 Specifications ......................................... 2-5
2-4 Major Differences from Previous Model .. 2-6
2-5 Function Differences from
Previous Model ....................................... 2-7
2-6 Names of Parts ....................................... 2-8
2-7 List of Abbreviations and Terms for DVD
Recorder ............................................... 2-12
3 Details of Servicing and
Troubleshooting ............................... 3-1
3-1 Details of Servicing ................................. 3-1
3-1-1 Removing Disc from Faulty Recorder ... 3-1
3-1-2 Removing Video Cassette from Faulty
Recorder ............................................... 3-1
3-1-3 Firmware .............................................. 3-2
3-1-4 Setting to defaults at the factory ........... 3-3
3-2 Troubleshooting ...................................... 3-4
3-2-1 Troubleshooting electronic system ........ 3-4
3-2-2 Troubleshooting mechanical block ...... 3-14
4 Disassembly and Reassembly ........ 4-1
4-1 Order of Disassembly ............................. 4-1
4-2 Cabinet Disassembly .............................. 4-1
(1) Top Cover ................................................. 4-1
(2) Front Panel ............................................... 4-2
(3) FAN Motor ................................................ 4-2
(4) SMPS P.C.B ............................................. 4-3
(5) Deck mechanism ...................................... 4-4
(6) TIMER P.C.B ............................................ 4-5
(7) VCR P.C.B ................................................ 4-5
(8) DVD multi-drive ........................................ 4-6
(9) VDR, JACK and KEY P.C.Bs .................... 4-6
4-3 Deck Mechanism Parts Locations ........... 4-7
4-4 Deck Mechanism Disassembly ................ 4-8
(1) Drum assembly ........................................ 4-8
(2) Top plate ................................................... 4-9
(3) CST holder assembly ............................... 4-9
(4) F/L rack gear assembly ............................ 4-9
(5) Door opener ............................................. 4-9
(6) F/L arm assembly ..................................... 4-9
(7) S/W lever assembly .................................. 4-9
(8) L/D motor assembly ............................... 4-11
(9) Wheel gear ............................................. 4-11
(10) F/E head .............................................. 4-11
(11) A/C head assembly .............................. 4-11
(12) T brake assembly ................................. 4-12
(13) Tension arm assembly .......................... 4-12
(14) S reel and T reel ................................... 4-12
(15) P4 base assembly ................................ 4-13
(16) Lid opener ............................................ 4-13
(17) Pressure arm assembly ....................... 4-13
(18) Take-up arm ......................................... 4-13
(19) Capstan supporter ............................... 4-14
(20) Capstan belt and capstan motor ........... 4-14
(21) F/R lever ............................................... 4-14
(22) D37 clutch assembly ............................ 4-14
(23) Driver gear and cam gear ..................... 4-15
(24) Sector gear .......................................... 4-15
(25) Capstan brake assembly ...................... 4-15
(26) Slider plate ........................................... 4-15
(27) Tension lever ........................................ 4-15
(28) Spring lever .......................................... 4-15
(29) Brake lever ........................................... 4-15
(30) P2 gear assembly and
P3 gear assembly ................................. 4-16
(31) P2 base assembly and
P3 base assembly ................................ 4-16
(32) Loading base ........................................ 4-16
(33) Tension base ........................................ 4-17
(34) Jog idler arm assembly ........................ 4-17
4-5 Checking Mode after Reassembling Deck
Mechanism ........................................... 4-18
Contents - 1
5 Adjustment / Maintenance ............... 5-1
C Circuit Board Diagrams .................. C-1
5-1 Set-up for Adjustment ............................. 5-1
5-2 VCR Electrical Adjustment ..................... 5-2
5-2-1 Head switching adjustment ................... 5-2
5-3 Deck Mechanism Tape Transport System
Adjustment ............................................. 5-3
5-3-1 Guide roller height adjustment ................. 5-3
5-3-2 A/C head adjustment ............................ 5-4
5-3-3 X-value adjustment ............................... 5-5
5-3-4 Adjustments after replacing
drum assembly ..................................... 5-5
5-3-5 Check after adjustment ........................ 5-6
5-3-6 Method of setting the mechanism to
loading status without inserting tape ..... 5-6
5-3-7 Reel torques ......................................... 5-7
5-4 Maintenance ............................................ 5-8
5-4-1 Maintenance and inspection ................. 5-8
5-4-2 Lubricating oil and greasing ................ 5-10
C-1
C-2
C-3
C-4
C-5
VCR Circuit Board Diagram ...................
S.M.P.S Circuit Board Diagram ..............
JACK Circuit Board Diagram .................
TIMER Circuit Board Diagram ...............
KEY Circuit Board Diagram ...................
C-1
C-3
C-4
C-4
C-4
B Block Diagrams ............................... B-1
B-1
B-2
B-3
B-4
B-5
6 Exploded View and Parts List .......... 6-1
6-1 Exploded Views ...................................... 6-1
6-1-1 Cabinet Section ................................... 6-1
6-1-2 F / L Mechanism .................................. 6-2
6-1-3 Deck Mechanism Section - Top view ... 6-3
6-1-4 Deck Mechanism Section - Bottom view 6-4
6-2 Parts List ................................................. 6-5
6-2-1 Mechanical Parts List ........................... 6-5
6-2-2 Electrical Parts List ............................... 6-6
S Schematic, Wiring Diagrams .......... S-1
S-1
S-2
S-3
S-4
S-5
S-6
S-7
Wiring Diagram ....................................... S-1
S.M.P.S Schematic Diagram ................... S-2
SYSTEM Schematic Diagram(VCR P.C.B) S-3
TUNER Schematic Diagram(VCR P.C.B) .. S-4
A/V Schematic Diagram(VCR P.C.B) ...... S-5
Hi-Fi Schematic Diagram(VCR P.C.B) .... S-6
REAR JACK Schematic Diagram
(VCR P.C.B) ............................................ S-7
S-8 TIMER,KEY Schematic Diagrams .......... S-8
S-9 JACK Schematic Diagram ...................... S-9
S-10 A/V,SYSTEM Circuit Waveforms ......... S-10
S-11 CIRCUIT VOLTAGE CHART ................ S-11
Contents - 2
S.M.P.S Circuit Block Diagram ................ B-1
VIDEO Circuit Block Diagram ................. B-2
AUDIO Circuit Block Diagram ................. B-3
SYSTEM Circuit Block Diagram .............. B-4
VIDEO I/O Circuit Block Diagram ........... B-5
1
Safety Precaution for Repair
1-1 Cautions
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts have special safety-related characteristics. These are often not
evident from visual inspection nor can the protection afforded by them necessarily be obtained by using
replacement components rated for a higher voltage, wattage, etc. Replacement parts which have these
special safety characteristics are identified in this Service Manual. Electrical components having such
features are identified by marking with a
on the schematics and the parts list in this Service Manual.
The use of a substitute replacement component which does not have the same safety characteristics as
the HITACHI recommended replacement one, shown in the parts list in this Service Manual, may create
shock, fire, or other hazards. Product safety is continuously under review and new instructions are
issued from time to time. For the latest information, always consult the current HITACHI Service Manual.
A subscription to, or additional copies for, HITACHI Service Manual may be obtained at a nominal
charge from HITACHI SALES CORPORATION.
CAUTION
CAUTION
This product contains a laser diode of
higher class than 1. To ensure continued safety, do not remove any covers
or attempt to gain access to the inside of the product. Refer all servicing
to qualified personnel.
There is a high-voltage section inside the DVD video
recorder. When repairing or inspecting it, take great care
to prevent electric shock: Use an isolating transformer,
wear gloves, etc.
1-1
Safety Precaution for Repair > Electrostatic Protection Measures / Cautions When Handling DVD Drive
1-2 Electrostatic Protection Measures
Semiconductor components can be damaged by static electricity charged on clothes, human body,
etc. Take great care when handling components to avoid electrostatic damage, and perform
servicing in an environment where grounding is complete.
(1) Grounding work bench
Lay out an antistatic mat on work bench, and then use the ground plate to ground the work bench.
Antistatic mat
1M ohm
Ground
(2) Grounding human body
Use an antistatic wrist strap to discharge any static electricity charged on the body. Also, use a
tester for wrist strap to make sure that the wrist strap is working normally. Note, however, that
static electricity charged on clothes will not be discharged by wrist strap: Therefore do not allow
your clothes to touch the semiconductor components.
Antistatic wrist strap
1M ohm
1-3 Cautions When Handling DVD Drive
The optical pickup in DVD drive has a high precision structure: Be sure to observe the following
cautions.
1) Do not subject optical pickups to any severe vibrations or
impact during movement, installation or disassembly.
2) When performing repair work, do not perform disassembly
any further than that described in this manual.
3) Never turn the semi-variable resistors for adjustment in
optical pickup or DVD drive.
4) NEVER look into the objective lens in optical pickup or
directly view the laser light: You could lose your eyesight.
Do not directly look at laser light
from pickup.
1-2
Safety Precaution for Repair > Lead-Free Solder
1-4 Lead-Free Solder
The printed circuit board that uses lead-free solder is adopted. To protect the global environment,
use the recommended lead-free solder also during servicing.
Read and observe the following before soldering:
Caution
ALWAYS wear protective goggles during soldering so that no solder smoke or scattered solder
enters the eye. Lead-free solder may scatter at high temperatures of 600°C.
(1) Characteristics of lead-free solder
The melting point of lead-free solder is 30-40°C higher than that of lead based solder.
(2) Lead-free solder for servicing
Use the following lead-free solder for servicing:
Recommended lead-free solder and composition of alloy (wt%): Sn-3.0Ag-0.5Cu or equivalent
Information:
For composition of alloy, Sn is tin; Ag is silver; Cu is copper; Bi is bismuth; Pb is lead.
(3) Soldering iron for servicing
The temperature of soldering iron tip must be adjusted according to the points to be soldered: Use
an antistatic soldering iron with thermal control function.
When removing components, take care not to damage any surrounding component or pattern. When
attaching components, observe the heating time in the following table so that the components are
not destroyed by heat.
Tip temperatures for different soldering points:
Point to be soldered
Surface-mounted (chip) parts [other than
those shown below]
Surface-mounted (chip) parts [for DVD
cameras, cellular phones only]
Discrete parts
Chassis, metal shield, etc.
Tip temperature
320 ± 30°C
[heating time: less than 5 seconds]
350 ± 10°C
[heating time: less than 3 seconds]
380 ± 30°C
420 ± 30°C
(4) Cautions when using lead based solder
It is recommended that you use lead-free solder when servicing, but it is also possible to service
using lead based solder. However, if lead based solder is used for servicing, take care with the
following:
1) Before using lead based solder, remove the lead-free solder completely from the point to be
soldered.
2) For additional soldering for repair, set the soldering iron tip temperature for lead-free solder, mix
lead based solder and lead-free solder sufficiently. Do not perform any repair using the bare
soldering iron tip without adding solder, since it will cause secondary failure due to lack of
strength.
1-3
Safety Precaution for Repair > Notes When Using Service Manual
1-5 Notes When Using Service Manual
(1) Value units used in parts list
Certain symbols are indicated as shown below for value units of resistors, capacitors and coils in
parts list. When you read them, note the following regular indications:
Parts
Resistor
Capacitor
Coil
Indication in list
Regular indication
KOHM ......................................... k
UF ................................................ µF
PF ................................................ pF
UH ............................................... µH
MH .............................................. mH
(2) Values in schematic diagrams
The values, dielectric strength (power capacitance) and tolerances of the resistors (excluding
variable resistors) and capacitors are indicated in the schematic diagrams using abbreviations.
Certain symbols are indicated for value units: When you read them note the regular indications in
tables below:
[Resistors]
Item
Value
Tolerance
Power
capacitance
[Capacitors]
Indication
Item
No indication ..............................
K .................................................. k
M ................................................. M
No indication .............................. ±5%
(All tolerances other than ±5% are
indicated in schematic diagrams)
No indication .............................. 1/8W
(1/16 W for leadless resistors with no
indication)
All capacitances other than the above
are indicated in schematic diagrams.
Value
Dielectric
strength
Indication
No indication .............................. µF
P .................................................. pF
No indication .............................. 50V
(All dielectric strengths other than
50 V are indicated in schematic
diagrams)
[Coils]
Item
Value
1-4
Indication
µ ................................................... µH
m .................................................. mH
2
General Description
2-1 Overview
The DV-RV8500E is a DVD recorder with VHS VCR that incorporates a DVD super multi-drive:
It allows user to record and play back on +RW and +R, as well as on DVD-RAM, DVD-RW, DVD-R
and VHS videotape.
It can be used without any concern about the type of media.
2-1-1 Service method
Basically, components are replaced when servicing the DV-RV8500E. However, the service method
is different for high-density packaging PCBs and precision components.
Refer to the following table and perform the designated, appropriate servicing. Any changes that
occur in the service method will be published using service bulletin, etc.
Do not perform any servicing other than that described in this manual.
Component
Exterior component
DVD Multi Drive
VDR P.C.B
VCR P.C.B
TIMER P.C.B
JACK P.C.B
KEY P.C.B
SMPS P.C.B
Deck mechanism
Service method
Component replacement
Unit replacement
Circuit board assembly
replacement
Component replacement
Component replacement
Component replacement
Component replacement
Component replacement
Component replacement
VDR P.C.B
DVD Multi Drive
SMPS P.C.B
KEY P.C.B
JACK P.C.B
VCR P.C.B
TIMER P.C.B
Deck Mechanism
Fig. 2-1-1 Component Location
2-1
General Description > Overview
2-1-2 Disc information
Recordable Discs
DVD-RW (Digital Video Disc - ReWritable):
These Discs can be recorded on repeatedly.
Recordings can be erased, then you can
record again on the same Disc.
When a brand-new DVD-RW disc is inserted,
the screen for formatting the disc will appear:
Choose the VR mode or Video mode, and
then format the disc before use.
DVD-R (Digital Video Disc - Recordable):
These Discs can be recorded only once. After
you finalize a DVD-R, you cannot record on it
or edit it any more.
DVD+RW (Digital Video Disc + ReWritable):
These Discs can be recorded on repeatedly.
Recordings can be erased, then you can
record again on the same Disc.
When a brand-new DVD+RW disc is inserted,
the screen for formatting the disc will appear:
Format the disc before use.
When a DVD+RW disc recorded on this
recorder is removed, it will automatically be
finalized, but if you enter a title after finalization,
you will need to manually finalize it.
DVD+R (Digital Video Disc + Recordable):
These Discs can be recorded only once. After
you finalize a DVD+R, you cannot record on
it or edit it any more.
.
DVD-RAM (DVD - Random Access
Memory)
DVD-RAM discs can be formatted for VR
mode recording.
These Discs can be recorded on repeatedly.
Recordings can be erased, then you can
record again on the same Disc.
Playable on DVD-RAM compatible players.
Recordings can be extensively edited.
Only DVD-RAM standard Version 2.0, 2.1
and 2.2 discs can be used in this unit.
You cannot use the cartridge-type DVD-RAM
disc in this unit.
When a brand-new DVD-RAM disc is
inserted, the screen for formatting the disc
will appear: Format the disc before use.
In the case of an 8-cm DVD-RAM on which
photos were recorded on a Hitachi DVD
video camera/recorder, no editing of Disc
Navigation or play list can be performed on
this recorder (recording on it and creating a
play list are possible).
otes
– This recorder cannot record CD-R or CD-RW discs.
– DVD-R/RW, DVD+R/RW and CD-R/RW discs
recorded using a personal computer or a DVD or CD
recorder may not play if the disc is damaged or dirty,
or if there is dirt or condensation on the recorder’s
lens.
– If you record a disc using a personal computer, even if
it is recorded in a compatible format, there are cases
in which it may not play because of the settings of the
application software used to create the disc. (Check
with the software publisher for more detailed
information.)
– The company does not hold any responsibility to
compensate the contents which should have been
recorded, and any losses or damages (e.g. losses of
business profit, or business intermission) that may
arise from malfunction of this recorder (not
recording/editing as intended).
Problems arising in the following situations are included.
• When a DVD disc recorded on this recorder is used
in a DVD recorder of another manufacturer, or used
(insertion, playback, recording or editing) in a
personal computer DVD drive.
• When a DVD that has been used as above is used
again in this recorder.
• When a DVD disc recorded in a DVD recorder of
another manufacturer, or in a personal computer
DVD drive is used.
Playable Discs
DVD
(8 cm/12 cm disc)
Video CD (VCD)
(8 cm / 12 cm disc)
Audio CD
(8 cm/12 cm disc)
In addition, this unit can play DVD-R/DVD-RW discs;
DVD+R/DVD+RW discs; CD-R/CD-RW discs that
contain audio titles, MP3 files, WMA files, or JPEG files;.
and VCD.
otes
– Depending on the conditions of the recording
equipment or the CD-R/RW (or DVD±R/±RW) disc
itself, some CD-R/RW (or DVD±R/±RW) discs cannot
be played on the unit.
– Do not attach any seal or label to either side (the
labelled side or the recorded side) of a disc.
– Do not use irregularly shaped CDs (e.g., heart-shaped
or octagonal). Doing so may result in malfunctions.
2-2
General Description > Overview
Is editing a DVD like editing a video tape?
About DVD-R and DVD-RW disc
How are DVD-R and DVD-RW discs different?
The essential difference between DVD-R and DVD-RW
is that DVD-R is a record-once medium, while DVD-RW
is a re-recordable/erasable medium. You can re-record/
erase a DVD-RW disc approximately 1,000 times.
No. When you edit a video tape you need one video
deck to play the original tape and another to record the
edits. With DVD, you edit by making a ‘Playlist’ of what
to play and when to play it. On playback, the recorder
plays the disc according to the Playlist.
About word ‘Original’ and ‘Playlist’
Can I play my recordable discs in a regular DVD
player?
Generally, DVD-R discs and DVD-RW discs recorded in
Video mode are playable in a regular DVD player, but
they must be ‘finalized’ first. This process fixes the
contents of the disc to make them readable to other
DVD players as DVD-Video discs.
DVD-RW discs recorded in VR (Video Recording) mode
are playable in some players.
This indicates a product feature that is
capable of playing DVD-RW discs recorded
with Video Recording format.
What are ‘recording modes’?
There are two recording modes available using this
recorder: VR mode and Video mode. When recording to
a DVD-R disc, recordings are always in Video mode.
DVD-RW discs can be formatted for VR mode recording
or Video mode recording.
VR mode recording
• 4 different picture quality/recording time settings
available (XP, SP, LP, EP)
• Not playable on regular DVD players
• Recordings can be extensively edited
Video mode recording
• 4 different picture quality/recording time settings
available (XP, SP, LP, EP)
• Playable on regular DVD players (after finalizing)
• Limited editing features
Throughout this manual, you will often see the words
Original and Playlist to refer to the actual content and
the edited version.
• Original: content refers to what’s actually recorded on
the disc.
• Playlist: content refers to the edited version of the
disc — how the Original content is to be played.
About DVD+R and DVD+RW disc
How are DVD+R and DVD+RW discs different?
The essential difference between DVD+R and DVD+RW
is that DVD+R is a record-once medium, while
DVD+RW is a re-recordable/erasable medium. You can
re-record/ erase a DVD+RW disc approximately 1,000
times.
DVD+RW mode recording
• 4 different picture quality/recording time settings
available (XP, SP, LP, EP)
• Playable on regular DVD players
• The edited contents is playable on regular DVD
players only after finalizing
• Recordings can be edited the title/chapter
DVD+R mode recording
• 4 different picture quality/recording time settings
available (XP, SP, LP, EP)
• Playable on regular DVD players (after finalizing)
• Any edited contents are not be compatible on regular
DVD players. (Hide, chapter combine, added chapter
mark, etc.)
• Limited title/chapter editing features
ote
DVD-Video Format (Video mode) is a new format for
recording on DVD-R/RW and DVD+R/RW discs that
was approved by the DVD Forum in 2000. You may
therefore experience problems playing recordable DVD
discs in some players. Symptoms include video
artifacts, audio and/or video dropouts and playback
suddenly stopping.
Our company cannot take responsibility for problems
playing discs recorded on this recorder in other players.
2-3
General Description > Features
2-2 Features
1. DVD super multi-drive incorporated
1) This drive is newly compatible with recording/playback on +R and +RW, in addition to DVDRAM, DVD-RW and DVD-R. DVD-RW is compatible with recording/playback in both Video mode
and VR (Video Recording) mode: DVD media can be selected to match the application.
2) The drive can play back 8 cm DVD-R recorded on a Hitachi DVD video camera/recorder and not
finalized.
3) The drive is widely compatible with reading of original CD-R/RW recorded in MP3, WMA
(Windows Media Player) and JPEG formats, as well as music CDs.
2. The Dubbing button easily dubs VHS images to create a DVD.
Simply pressing the button allows user to dub precious material recorded on VHS videotapes onto
DVD. And images edited on DVD can be dubbed onto VHS videotape.
3. High-quality image design
1) VBR (Variable Bit Rate control) format ensures both high image quality and long-time recording:
This DVD recorder uses a VBR recording format that increases the compression ratio with simple
images and decreases it with complex images of larger amounts of data, thus variably controlling
to the optimum compression ratio: It reduces deterioration in image quality and effectively
records on DVD.
2) Progressive playback makes possible the playback of generally available DVD movies, with
natural images and reduced flickering:
This DVD recorder plays back clear images even on a large screen with reduced jagging on
diagonal lines or characters, and reduced flickering.
4. Enhanced functions
1) DV input port enables digital dubbing from a digital camcorder to DVD.
2) Zoom-up function allows you to enlarge DVD images.
2-4
General Description > Specifications
2-3 Specifications
General
Power requirements
Power consumption
Dimensions (approx.)
Mass (approx.)
Operating temperature
Operating humidity
Television system
Recording format
AC 220-240V, 50/60Hz
35W
432 X 81.5 X 367 mm (w x h x d)
6.6 kg
5˚C to 35˚C
5 % to 90 %
PAL B/G, SECAM L/L' colour system [For E]
PAL I colour system [For E (UK)]
VCR : PAL, SECAM [SECAM : E only]
DVD : PAL
System
Laser
Video head system
Signal system
Semiconductor laser, wavelength 650 nm
Double azimuth 4 heads, helical scanning
VCR : PAL, SECAM [SECAM : E only]
DVD : PAL
Recording
Recording format
Recordable discs
Recordable time
Video recording format
Sampling frequency
Compression format
Audio recording format
Sampling frequency
Compression format
DVD VideoRecording, DVD-VIDEO
DVD-ReWritable, DVD-Recordable, DVD+ReWritable, DVD+Recordable,
DVD-Random Access Memory
DVD (4.7GB) : Approx. 1 hour (XP mode), 2 hours (SP mode),
4 hours (LP mode), 6 hours (EP mode)
27MHz
MPEG 2
48kHz
Dolby Digital
Playback
Frequency response
Signal-to-noise ratio
Harmonic distortion
Dynamic range
DVD (PCM 48 kHz): 8 Hz to 22 kHz, CD: 8 Hz to 20 kHz
DVD (PCM 96 kHz): 8 Hz to 44 kHz
More than 100 dB (AUDIO OUT connector)
Less than 0.008% (AUDIO OUT connector)
More than 95 dB (AUDIO OUT connector)
Inputs
AERIAL IN
VIDEO IN
AUDIO IN
DV IN
S-VIDEO IN
Aerial input, 75 ohms
1.0 Vp-p 75 ohms, sync negative, RCA jack x 1 / SCART x 2
0 dBm more than 47 kohms, RCA jack (L, R) x 1 / SCART x 2
4 pin (i.LINK/IEEE 1394 standard)
(Y) 1.0 V (p-p), 75 Ω, negative sync, Mini DIN 4-pin x 1
(C) 0.3 V (p-p) 75 Ω
Outputs
VIDEO OUT
S-VIDEO OUT
COMPONENT VIDEO OUT
Audio output (digital audio)
Audio output (optical audio)
Audio output (analogue audio)
1.0 Vp-p 75 ohms, sync negative, SCART x 2
(Y) 1.0 V (p-p), 75 Ω, negative sync, Mini DIN 4-pin x 1
(C) 0.3 V (p-p) 75 Ω
(Y) 1.0 V (p-p), 75 Ω, negative sync, RCA jack x 1
(CB/PB)/(CR/PR) 0.7 V (p-p), 75 Ω , RCA jack x 2
0.5 V (p-p), 75 Ω, RCA jack x 1
3 V (p-p), 75 Ω, Optical connector x 1
2.0 Vrms (1 KHz, 0 dB), 600 Ω, RCA jack (L, R) x 1 / SCART
• Design and specifications are subject to change without notice.
• Manufactured under licence from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby
Laboratories.
• DTS and DTS Digital Out are registered trademarks of Digital Theater Systems, Inc.
2-5
General Description > Major Differences from Previous Model
2-4 Major Differences from Previous Model
: Same as on left
Item
DV-RV8500E
DV-RX7000E
Appearance
PROGRAM
Dimensions
Power consumption
CPRM
Recordable media
Playable media
Remote control
DV input terminal
S-VIDEO input terminal
VIDEO/AUDIO input
terminals
COMPONENT VIDEO
output terminal
S-VIDEO output terminal
VIDEO output terminal
Analog AUDIO output
terminals
Digital AUDIO output
terminals
Video output switch
432(W) x 367(D) x 81.5(H)mm
Approx. 35 W
Yes
12 cm (5”) 4.7 GB DVD-RAM
12 cm (5”) 9.4 GB DVD-RAM
8 cm (3”) 1.4 GB DVD-RAM
8 cm (3”) 2.8 GB DVD-RAM
12 cm (5”) 4.7 GB DVD-RW
8 cm (3”) 1.4 GB DVD-RW
12 cm (5”) 4.7 GB DVD-R
8 cm (3”) 1.4 GB DVD-R
12 cm (5”) 4.7 GB DVD-R (4x-SPEED)
12 cm (5”) 4.7 GB DVD+RW
12 cm (5”) 4.7 GB DVD+R
VHS
DVD-RAM
DVD-RW
DVD-R
DVD+RW
DVD+R
DVD-VIDEO
Video CD (VCD)
Audio CD (CD-DA)
CD-R/CD-RW
(CD-DA, MP3,WMA,JPEG,VCD
formatted discs)
VHS/S-VHS (SQPB)
DV-RM8500E
1 (IEEE 1394/i.LINK)
1 (Mini DIN 4pin)
3 (RCA: 1, SCART: 2)
1 (RCA)
430(W) x 279(D) x 69(H)mm
Approx.35 W
---
-------
-----
CD-R/CD-RW
(CD-DA, MP3,JPEG formatted discs)
--DV-RM7000E
2 (Mini DIN 4pin: 2)
4 (RCA: 2, SCART: 2)
---
1 (Mini DIN 4pin)
2 (SCART: 2)
3 (RCA: 1, SCART: 2)
3 (RCA: 1, SCART: 2)
4 (RCA: 2, SCART: 2)
2 (Optical: 1, Coaxial: 1)
Yes (COMPONENT-RGB)
2-6
Yes (SETUP screen)
General Description > Function Differences from Previous Model
2-5 Function Differences from Previous Model
: Same as on left
VCR section
DVD section
Item
Recording Digital Recording (DV to DVD)
Dubbing (VCR to DVD)
Time Slip (PIP)
Instant Timer Recording
Flexible Recording Mode
Recording Mode
Playback Title List Playback
CM Skip
Manual Skip
Marker Search
Zoom
Photo CD Playback (JPEG)
MP3 Playback
P in P
Repeat Play
Repeat A-B Play
Camera Angle
3D Surround
Slow Motion Play
Random Play
Time Search
DivX Movie Disc Playback
WMA Playback
Intro Play
Other
Disk Menu
Title List
Chapter List
Edit Title List
Edit Chapter List
Playlist
Divide Program
Hide Program
Recording Digital Recording (DV to VCR)
Dubbing (DVD to VCR)
Title List Dubbing (DVD to VCR)
Instant Timer Recording
Playback Picture Search
Slow Motion
Counter [0:00:00] Stop
DV-RV8500E
DV-RX7000E
Yes
Yes
Yes
Yes
No
XP, SP, LP, EP
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes (Karaoke, VCD)
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
2-7
One Touch Recording (OTR)
Yes (Timer Recording Only)
XP, SP, LP, EP, FR
Yes (15, 30, 60 sec)
Yes
No
Yes
No
No
Yes
Yes (Disc Manager)
No
No
---------------
General Description > Names of Parts
2-6 Names of Parts
Front Panel
2
1
6
1
4
3
5
8
7
9 10 11 12 14 13 14
STANDBY/ON
Switches the Recorder ON and OFF.
Press to turn the power on and off.(As to the
indication of the Operate switch, “ I ” shows ON and
“ ” shows electrical power stand-by.)
7
DV IN
Connect the DV output of a digital camcorder.
8
DVD/VCR indicator
Indicates the active DVD or VCR deck.
2
Disc Tray (DVD deck)
Insert a disc here.
9
DVD/VCR
Toggles control between the DVD deck and the VCR
deck.
3
OPEN/CLOSE
Opens or closes the disc tray.
4
10 DUBBING
Press to copy DVD to VCR (or VCR to DVD).
Cassette Compartment (VCR deck)
Insert a video cassette here.
5
EJECT
Ejects the tape in the VCR deck.
6
AV 3 IN
- VIDEO /AUDIO (Left/Right)
Connect the audio/video output of an external
source
(Audio system, TV/ Monitor, VCR, Camcorder, etc.).
- S-VIDEO IN
Connect the S-Video output of an external source
(TV/ Monitor, VCR, Camcorder, etc.).
11
(REC)
Starts recording.
Press repeatedly to set the recording time.
12
(STOP)
Stops playback.
13
(PLAY)
To play back a disc or tape.
14
SEARCH
Press
for fast back.
Press
for fast forward.
ote
Holding down the POWER button on the front of this
recorder in the stop mode will allow you to reset the
recorder. Do not perform this during recording: Doing so
will result in flawed recording.
2-8
General Description > Names of Parts
Function Display Window
Disc type indicators
Indicates the type of disc loaded.
Indicates when the recorder
is in timer recording or a timer
recording is programmed.
REC The recorder is
recording.
PRG Programmed playback active.
TTL Indicates current title.
A disc is inserted in the DVD deck.
A VHS tape is inserted in the VCR deck.
VR Indicates a DVD-RW disc (VR mode only)
disc is inserted in the DVD deck.
TV Indicates when the recorder is in TV tuner mode.
CHP/TRK Indicates current chapter or track number.
DVD
VCD
A
REC
PRG TTL
VR TV
CHP TRK
DUB
Hi-Fi
ST
BIL
NICAM
B
REPEAT Indicates repeat mode.
Character indicators
Indicates clock, total playing time, elapsed time, remaining
time, title number, chapter/track number, channel, etc.
DUB Indicates that a DVD to VCR (or VCR to DVD)
copy is in progress.
Hi-Fi Indicates when the Recorder is playing
a tape in Hi-Fi.
ST Indicates a stereo broadcast is
being received.
BIL Indicates when a BILINGUAL broadcast is being received.
NICAM Indicates when a NICAM broadcast is being received.
2-9
General Description > Names of Parts
Remote Control Overview
POWER
EJECT, OPEN/CLOSE
Switches the recorder ON or OFF.
- Opens and closes the disc tray.
- Ejects the tape in the VCR deck.
DVD
TV Control Buttons
Select the Recorder’s function mode to
DVD.
POWER: Turns the TV on or off.
INPUT: Selects the TV’s source.
PROG: Selects TV’s channel.
VOL: Adjusts TV’s volume.
MUTE: Temporarily turns TV sound
VCR
Select the Recorder’s function mode to
VCR.
INPUT
Changes the input to use for recording
(Tuner, AV1-3, or DV IN).
OFF, press again to restore.
0-9 numerical buttons
BACKWARD / FORWARD (
Selects numbered options in a menu.
/
)
- DVD: Search backward or forward.
- VCR: Rewinds the tape during the
STOP mode, for fast reverse picture
search and Advances the tape during
the STOP mode, fast forward picture
search.
CLEAR
- Removes a track number on the
Program List or a mark on the
Marker Search menu.
- Reset tape counter to zero.
DISPLAY
SKIP (
Accesses On-Screen Display.
)
/
Go to next chapter or track. Returns to
beginning of current chapter or track or
go to previous chapter or track.
TIME SLIP
To play the title being recorded and also
currently being recorded appears as
PIP.
PAUSE/STEP ( )
Pause playback temporarily / press
repeatedly for frame-by-frame
playback.
TIMER REC
Displays Timer Record menu.
REC ( )
PLAY (
Starts recording. Press repeatedly to set
the recording time.
)
Starts playback.
STOP (
REC MODE
)
Stops playback or recording.
DISC MENU / LIST
Selects the recording mode:
XP, SP, LP, or EP.
Accesses menu on a DVD disc, Title List
or Playlist menu.
/ / / (left/right/up/down)
Selects an option in the menu.
MANUAL SKIP
Pressing this button during palyback will
skip to a scene 30 seconds forward.
TV/DVD
PROG/TRK(+/–)
To view channels selected by the
recorder’s tuner or by the TV tuner.
- Select channel program of the
recorder.
- To adjust tracking.
- To control vertical tremble during
picture still.
CHP ADD
Inserts a chapter marker when playing/
recording a VR mode DVD-RW (and
DVD+RW/+R) disc.
ENTER
VIDEO Plus +
- Acknowledges menu selection.
- Displays information while viewing a
TV program.
Pressing this button and input VIDEO
Plus + number to preset the timer for
recording.
SETUP
DUBBING
Accesses or removes the Setup menu.
TITLE MENU
Press to copy DVD to VCR (or VCR to
DVD).
Displays the disc’s Title menu, if
available.
AUDIO
RETURN (
Selects an audio language (DVD) or an
audio channel (CD).
)
- Removes the menu.
- Displays the menu of a video CD
with PBC.
SUBTITLE
Selects a subtitle language.
ANGLE
REPEAT
Selects a DVD camera angle,
if available.
Repeat chapter, track, title, all.
A-B
ZOOM
Repeat sequence.
RANDOM
Enlarges DVD video image.
MARKER
Plays tracks in random order.
THUMBNAIL
Marks any point during playback.
SEARCH
Selects a thumbnail picture for the
current title and chapter for use in the
Original and Playlist menu.
Displays Marker Search menu.
2 - 10
General Description > Names of Parts
Rear Panel
AERIAL
Connect the aerial to this terminal.
COMPONENT/PROGRESSIVE SCAN VIDEO OUT (Y Pb Pr)
Connect to a TV with Y Pb Pr inputs.
Mains Lead
Plug into the power source.
AUDIO OUT (Left/Right)
Connect to an amplifier, receiver or stereo system.
EURO AV 2 DECODER
Connect the audio/video output of an external source
(Pay-TV decoder, Set Top Box, VCR, etc.).
EURO AV 1 AUDIO/VIDEO
Connect to a TV with SCART jack.
COAXIAL (Digital audio out jack)
Connect to digital (coaxial) audio equipment.
OPTICAL (Digital audio out jack)
Connect to digital (optical) audio equipment.
VIDEO OUTPUT Switch
Select either COMPONENT/PROGRESSIVE SCAN VIDEO OUT or RGB
signal of EURO AV1 AUDIO/ VIDEO terminal depending on how you connect
the Recorder to the TV.
S-VIDEO OUT
Connect to a S-Video Input on TV.
AERIAL OUT
Passes the signal from the AERIAL to your TV/monitor.
2 - 11
General Description > List of Abbreviations and Terms for DVD Recorder
2-7 List of Abbreviations and Terms for DVD Recorder
Index Abbreviation/Term
A
B
AC3
Black Level
C
CPRM
CD-R
CD-RW
Component video
output terminals
D
Decoder
Dynamic Range
Dolby AC3
DRC
DTS
DVD
DVD-Audio
DVD-R
DVD-RAM
DVD-RW
DVD-Video
DVD Video Format
I
DVD Video
Recording Format
I/P/B
Explanation
See Dolby AC3.
Function to correct the gradations on dark portions to make dark scenes easierto-see.
Content Protection for Recordable Media: Copyright protection function that is
suitable for online distribution of music.
One type of DVD standard disc, to which writing once is possible (recordable
type)
One type of CD standard disc, to which writing up to 1000 times is possible
Used for outputs of HDTV video signal format. Since signals for brightness and
colors are independently handled for components signals (Y: luminance signal;
PR/PB: chrominance signals), degrading of image will be reduced.
A device that decodes the data coded and recorded on DVD Video and restores it
to video and audio signals. This processing is referred to as decoding.
A difference between maximum and minimum levels of audio recorded on disc:
Measured in decibel (dB) units. If the dynamic range is compressed (audio DRC),
the minimum signal level will increase and the maximum signal level will
decrease: This will reduce the higher audio signal - such as burst sound - so that
the low-level audio signal - such as human voice - can be heard more clearly.
Audio coding format developed by Dolby Laboratories in U.S, also simply
referred as AC3 format: Supports 5-channel full-range sound and one channel
for sub-woofer sound playback.
Dynamic Range Control: Adjusting the audio range of maximum and minimum
levels (dynamic range) will improve audio signal when, for example, dialog is
hard to hear or user is watching movies late at night.
Digital Theater System: Sound system as for movie theaters developed by US
Digital Theater Systems, Inc. The number of channels provided by DTS is the
same for Dolby AC3.
Digital Versatile Disc. A huge amount of digital data for video (movie) and audio
can be recorded on this disc, whose size is the same as CD.
One type of DVD standard disc, on which high-quality audio can be recorded
One type of DVD standard disc, to which writing once is possible (recordable
type)
One type of DVD standard disc, to which writing up to 100,000 times is possible
One type of DVD standard disc, to which writing up to 1000 times is possible
One type of DVD standard disc, on which high-quality video and audio can be
recorded
Video recording/playback standard that applies to DVD-Video, DVD-R and DVDRW
Video recording/playback standard that applies to DVD-RAM and DVD-RW:
This allows versatile editing functions, differing from the DVD Video Format.
DVD recorders normally use data that is common between images, and
individually record different data for each image.
I-picture: Images recorded independently for the reference of commonly used
data.
P-picture: Images created from past I-picture or P-picture
B-picture: Images created from both I and P pictures, which interact between
both types
Since I-picture delivers the highest image quality, selecting I-picture is
recommended when adjusting image quality.
2 - 12
General Description > List of Abbreviations and Terms for DVD Recorder
Index Abbreviation/Term
J
M
O
P
S
T
Explanation
JPEG
Joint Photographic Expert Group: International standard format for
compressing still images.
MPEG
Moving Picture Experts Group: Standard related to compression of digital video
and audio. MPEG2 is a higher standard of MPEG and is applied to video (movie)
requiring higher quality.
MPEG Audio Layer One of three audio compression standards (layers 1-3) defined by MPEG
2
MP3
MPEG1 Audio Layer-3: Audio data digital compression technology.
Optical digital
Audio is usually converted to an electrical signal and transmitted from DVD to a
audio output
device such as amp: When audio is converted to a digital signal, this optical
digital audio output can be transmitted on optical fiber.
Pan & Scan/
Most DVD videos are produced assuming that they will be displayed on wide TV
Letterbox
screen (aspect ratio of 16:9): If they are displayed on TV screens with 4:3 aspect
ratio, 16:9 images will not quite fit on 4:3 screens. There are two ways of
displaying 16:9 images on 4:3 TV:
· Pan & Scan: Cuts out the left and right ends of images and displays them on
whole screen.
· Letterbox: Reproduces 16:9 images on 4:3 screens with black bands across the
top and bottom of screen.
One format to play Video CD: User can select desired screens and data while
Playback Control
(PBC)
watching the displayed menu screen.
Progressive
This function converts interlaced images to non-interlaced images and displays
playback function
them. It can play back 24-frame/second images included in DVD movie software,
etc.
S-Video Output
The video signal is separated into chrominance (C) and luminance (L) signals
and transmitted to TV: This delivers clearer images.
Sampling slices audio waves (analog signal) at a specified time interval, and
Sampling
Frequency
digitizes the levels of the sliced waves. The slicing number per second is referred
to as the sampling frequency: The higher the number, the closer the sound to
the original.
SDMI
Secure Digital Music Initiative: This conference was established by hardware
makers, the Recording Industry Association of America (RIAA) and music
industry companies, to protect copyrights of musical compositions.
Tracking
To make adjustment for clearer playback image, by reducing noise that appears
on screen during videotape playback.
V
Virtual surround
W
WMA
This technology localizes sound at any position using only two front speakers, by
subjecting the L and R signals to matrix operation. It uses the four transfer
functions from L/R speakers located at specified positions to both ears of listener
located in a specified position, taking into account the shape of head and the
effect of earlobes, and the two transfer functions from any position to both ears.
Windows Media Audio: Codec that was developed by Microsoft Corporation in
USA.
2 - 13
3
Details of Servicing and Troubleshooting
3-1 Details of Servicing
3-1-1 Removing Disc from Faulty Recorder
If disc cannot be removed due to fault, disassemble the recorder and remove the disc by the
following procedure:
1) Remove the top cover.
DISC TRAY
[See 4-2 (1) for removal procedure.]
2) Remove the front panel.
[See 4-2 (2) for removal procedure.]
"B"
3) Push the white component portion under the
disc tray strongly, and the tray will come
slightly forward.
Remove the disc tray in the direction of arrow
"A" PUSH
B. Perform this work carefully, making sure
that the disc is not scratched.
Fig. 3-1-1 Removing Disc
3-1-2 Removing Video Cassette from Faulty Recorder
If video cassette cannot be removed due to fault, disassemble the recorder and remove the video
cassette by the following procedure:
1) Remove the top cover. [See 4-2 (1) for removal procedure.]
2) Remove the front panel. [See 4-2 (2) for removal procedure.]
3) Remove the deck mechanism. [See 4-2 (5) for removal procedure.]
4) Turn the worm gear of L/D motor assembly in the direction of arrow A: Unloading will start.
When the tape starts to slacken, turn the D37 clutch assembly on the front of deck mechanism in
the direction of arrow B to remove the slack tape.
5) When unloading is complete, the deck mechanism will begin EJECT operation: Completely turn
the worm gear of L/D motor assembly in the direction of arrow A.
L/D MOTOR Ass'y
(A)
(B)
D37 Clutch Ass'y
Fig. 3-1-2 Removing Video Cassette
3-1
Details of Servicing and Troubleshooting > Firmware
3-1-3 Firmware
The firmware is occasionally updated to improve performance.
Check whether a customer complaint can be solved by updating of firmware: If the complaint can be
solved, update the firmware.
Information:
1) If any corrections in firmware are made at the factory, information on how to obtain the
firmware data and create a disc containing upgraded firmware will be reported in technical
bulletin, etc.
2) The main and drive firmware programs in this DVD recorder can be written to one CD-R and
updated at the same time. It is also possible to write one firmware program to a CD-R and
update it individually. Note that some parts of on-screen display will be different depending on
the contents to be written to CD-R.
(1) Version check procedure
1) With the recorder turned on, make sure that no disc or tape is
inserted.
2) Connect a monitor TV to the video output terminals on this DVD
recorder.
3) Simultaneously hold down the REC and PLAY buttons on the
front of this DVD recorder for approx. 10 seconds.
4) The firmware version screen will appear on the monitor TV.
5) Turn the recorder off to switch off the display.
Update Disc.
Run: REC KEY 3 times
Open: Other KEY
Fig. 3-1-3
(2) Main/drive firmware simultaneous updating procedure
1) Write the main firmware data and drive firmware data to a CD-R.
2) Insert the firmware disc: The screen for verifying update will appear
(Fig. 3-1-3).
3) Press the REC button on this DVD recorder three times: The
Firmware Update screen will appear (Fig. 3-1-4).
4) Use the cursor buttons on remote control to choose “ALL”, and then
press the ENTER button.
5) The current version of drive firmware and the version of firmware on
the disc will both appear on the screen. Pressing the REC button on
this DVD recorder will start writing (Fig. 3-1-5).
To cancel writing, press the OPEN/CLOSE button and remove the
disc.
6) The main firmware version will then appear on the screen. Pressing
the REC button on this DVD recorder will start writing (Fig. 3-1-6).
To cancel writing, press the OPEN/CLOSE button and remove the
disc.
7) When updating is complete, the tray will open automatically: Remove
the disc.
8) Turn the DVD recorder off and then on: The firmware is now updated.
3-2
==== Firm Ware Update =====
Main
Loader
ALL
Fig. 3-1-4
Current Loader Version
DVD+-R/RW RL-02A a.30
New CD Write Loader Version
DVD+-R/RW RL-02A a30
RECKEY:WRITE OPEN:CANCEL
Fig. 3-1-5
Current Version
Version=040731APV Cware=LG17 BSP=1
New CD Write Version
Version=040731A cware=LG17 BSP=16
RECKEY:WRITE OPEN:CANCEL
Fig. 3-1-6
Details of Servicing and Troubleshooting > Firmware
(3) Main firmware updating procedure
1) Write the main firmware data to a CD-R.
2) Insert the firmware disc: The screen for verifying update will appear
(Fig. 3-1-7).
3) Press the REC button on this DVD recorder three times: Both the
current version of main firmware and the version of main firmware
on the disc will appear on the screen (Fig. 3-1-8).
4) Pressing the REC button on this DVD recorder will start writing
(Fig. 3-1-8).
To cancel writing, press the OPEN/CLOSE button and remove the
disc.
5) When updating is complete, the tray will open automatically:
Remove the disc.
6) Turn the DVD recorder off and then on: The firmware is now
updated.
Update Disc.
Run: REC KEY 3 times
Open: Other KEY
Fig. 3-1-7
Current Version
Version=040731APV Cware=LG17 BSP=1
New CD Write Version
Version=040731A cware=LG17 BSP=16
RECKEY:WRITE OPEN:CANCEL
Fig. 3-1-8
(4) Drive firmware updating procedure
1) Write the drive firmware data to a CD-R.
2) Insert the firmware disc: The screen for verifying update will appear
(Fig. 3-1-7).
3) Press the REC button on this DVD recorder three times: The data
on disc will be read, the Firmware Update screen will appear, and
the drive firmware version along with the version of drive firmware
on the disc, will appear on the screen (Fig. 3-1-9).
When reading the data on disc is complete, the disc tray will open
automatically: Remove the disc.
4) Press the REC button on this DVD recorder.
To cancel writing, press the OPEN/CLOSE button.
5) Turn the DVD recorder off and then on: The firmware is now
updated.
3-1-4 Setting to defaults at the factory
Perform the following procedure to reset this DVD recorder to the
initial status when it was shipped from the factory (defaults):
1) Press the SETUP button on remote control and use the cursor
buttons to choose the GENERAL menu.
2) Press the cursor button to move to the second level.
3) Use the cursor
buttons to choose “Factory Set”, choose the SET
icon, and then press the ENTER button.
3-3
Current Loader Version
DVD+-R/RW RL-02A a.30
New CD Write Loader Version
DVD+-R/RW RL-02A a30
RECKEY:WRITE OPEN:CANCEL
Fig. 3-1-9
Details of Servicing and Troubleshooting > Troubleshooting
3-2 Troubleshooting
3-2-1 Troubleshooting electronic system
(1) SMPS Circuit
No 5.3VA
No
F101: Normal?
No
Replace F101.
D127 anode: Voltage?
Yes
Yes
No
No
BD101: Normal?
Replace BD101.
D128 cathode: Voltage?
Yes
Yes
No
TH01: Normal?
Power line on
VCR PCB shorted.
Replace TH01.
Yes
No
Replace D121.
D121 cathode: 5.3 V?
Yes
No
IC103-1: Approx. 2.5 V?
Replace IC103.
Yes
No
D126 cathode: Voltage?
Replace D126.
Yes
No
D129 cathode: Voltage?
Replace D129.
Yes
No
D130 cathode: Voltage?
Replace D127.
Replace D130.
Yes
3-4
Replace D128.
Details of Servicing and Troubleshooting > Troubleshooting
No 12VA
(power supply of capstan/cylinder motors)
Is 13 V supplied
to C130?
No
No REG12V
Check D126, and
replace if necessary.
Is 13 V supplied
to Q126-C?
Yes
No
Check D126, and
replace if necessary.
Yes
No
Is 33 V supplied
to Q126-B?
Replace D132.
D132 cathode: Voltage?
Yes
No
Check 33V line.
Yes
Is there "Hi" signal
on 'PWR CTL H' line
from SYSTEM circuit?
Check capstan motor and
cylinder motor, and
replace if necessary.
No
Check
SYSTEM microprocessor.
Yes
FL display does not light.
No
R107: Normal?
Check R107, and
replace if necessary.
Check D126, and
replace if necessary.
No CAP Vcc power supply
Yes
No
D128 cathode: Voltage?
Check D128, and
replace if necessary.
Is 30 V supplied
to Q120-C?
Yes
No
Check D129, and
replace if necessary.
No
Check ZD153, and
replace if necessary.
No
Check 'HSR H' line
from SYSTEM circuit?
Yes
No
ZD151: Normal?
Check ZD151, and
replace if necessary.
Is 30 V supplied
to Q120-B?
Yes
Yes
Check D127, and
replace if necessary.
Is 33 V supplied
to Q121-C?
Yes
Check Q121, Q122
and 33V line.
No 33V
Is 33 V supplied
to Q123-E?
No
Check D130, and
replace if necessary.
No
Check
the 'PWR CTL H' line
from SYSTEM circuit.
Check Q120, and
replace if necessary.
Yes
Q123-B: "Lo"?
Yes
Check Q123, and
replace if necessary.
3-5
Details of Servicing and Troubleshooting > Troubleshooting
(2) SYSTEM Circuit
Stops automatically
No
Check DPG/DFG signals
from cylinder motor.
No
Is 5.0 V supplied
to RS501?
IC501-23: H.SW waveform?
Yes
IC501-3: Take-up
reel pulses?
Yes
No
Check power supply line.
Yes
Replace IC501.
Replace RS501.
Supplement: Automatic stop may occur when grease or oil in the mechanism block has dried up.
Cassette tape does not load smoothly
Is 12 V supplied
to PMC01-8?
No
Check power supply line.
Yes
Does "Hi" signal appear
at IC501-32 when
cassette is inserted?
No
Is 5.0 V supplied to
R544?
No
Check 5.3VA
power supply line.
Yes
Yes
Check CS501 (CST SW)
and its peripheral circuits.
Check deck mechanism.
No key operation
Is 5 V supplied
to IC501-73?
No
See "No 5.3VA" in
(1) SMPS circuit.
No
Replace any
faulty switches.
Yes
Does FL display change
when operation
button is pressed?
3-6
Details of Servicing and Troubleshooting > Troubleshooting
(3) Servo circuit
Faulty image during playback
(noise on screen changes)
No
IC501-72: CTL pulses?
No
Is the height of
A/C head appropriate?
Yes
Readjust the height
of A/C head.
Yes
Check CTL pulse line.
No
Check CFG line.
IC501-67: CFG waveform?
Yes
Does tracking operation
move CTL pulses?
No
Replace IC501.
Yes
IC501-82:
Envelope waveform?
No
See "No Y signal
during playback" in
(4) VIDEO circuit.
Yes
Replace IC501.
Cylinder motor does not rotate.
Is 12 V supplied
to PMC01-8?
No
See "No 12VA" in
(1) SMPS circuit.
Yes
No
PMC01-12: 2.8 V?
Yes
Check connector between
PMC01 and cylinder motor.
IC501-34:
DRUM PWM pulses?
No
No
PMC01-11: DFG pulses?
Yes
Check for short-circuit
between IC501-34 and
PMC01-12.
Replace capstan motor.
Yes
No
IC501-65: DFG pulses?
Check for short-circuit
between IC501-65 and
PMC01-11.
Yes
IC501-34:
DRUM PWM pulses?
Yes
Check for short-circuit
between IC501-34 and
PMC01-12.
3-7
No
Replace IC501.
Details of Servicing and Troubleshooting > Troubleshooting
Capstan motor does not rotate.
Is 12 V supplied
to PMC01-2?
No
See "No CAP Vcc power
supply" in (1) SMPS
circuit.
No
IC501-33:
CAP PWM pulses?
Yes
PMC01-9: 2.8 V?
Yes
Check for short-circuit
between PMC01 and
capstan motor.
No
Yes
PMC01-1:
CFG pulses?
No
Check capstan motor.
Yes
Check for short-circuit
between IC501-33 and
PMC01-9.
No
IC501-67: CFG pulses?
Check for short-circuit
between IC501-67 and
PMC01-1.
Yes
IC501-33:
CAP PWM pulses?
Yes
Check for short-circuit
between IC501-33 and
PMC01-9.
3-8
No
Replace IC501.
Details of Servicing and Troubleshooting > Troubleshooting
(4) VIDEO circuit
No image in EE mode.
Is TU-VIDEO
signal supplied
IC301-15?
No
Check IC802 and tuner.
Yes
Is 5V supplied to
IC301-4, 22, 47, 50, 52,
60, 84, 92?
No
Check 5V line.
Yes
Does VIDEO signal
appear at IC301-29?
Is I2C BUS signal
supplied to
IC301-73, 74?
No
Yes
Does VIDEO signal
appear at PMD02-7
No
Check Q310 and Q905,
and replace if necessary.
Check C329, and replace
if necessary: Is normal
status restored?
No
Replace VDR PCB.
Yes
Is VIDEO signal
appear at IC802-5?
No
Check the line between
PMD02-5 and IC802-5.
Yes
Is VIDEO signal
supplied to IC901-4?
Check IC501, and
if necessary.
Yes
Yes
Does VIDEO signal
appear at PMD02-5?
No
No
Replace IC802.
Yes
Replace IC901.
3-9
No
Replace IC301.
Details of Servicing and Troubleshooting > Troubleshooting
No Y signal during playback
Is 5V supplied to
IC301-4, 22, 47, 50,
52, 60, 84, 92?
No image during recording
No
No
Does E-E signal appear?
Check 5V line.
Yes
Is I2C BUS signal
supplied to
IC301-73, 74?
Yes
No
Is 5V supplied to
IC301-4, 22, 47, 50,
52, 60, 84, 92?
Check IC501, and
replace if necessary.
Yes
Is V.H.SW signal
to IC301-80?
No
Does image appear
during playback?
Check IC501, and
replace if necessary.
No
Does REC RF signal
appear at IC301-86, 90?
Check R342, and
replace if necessary.
Yes
No
Check cylinder motor
and connector.
Replace IC301.
Yes
Does Y signal appear
at IC301-31?
No
Replace IC301.
Yes
Replace VDR PCB.
No chroma signal during playback
Is 5V supplied to
IC301-4, 22, 47, 50,
52, 60, 84, 92?
No
Check 5V line.
Yes
Does chroma signal
appear at IC301-29?
Yes
Replace VDR PCB.
Check 5V line.
No
Check playback mode.
Yes
Yes
Does Y signal appear
at IC301-33?
No
Yes
Yes
Does approx. 3.4 V
appear at IC301-80
when V.H.SW is Hi?
See "No image in
E-E mode" in
(4) VIDEO circuit.
No
Does X301 (4.43 MHz)
generate a signal?
No
Replace X301.
Yes
Replace IC301.
3 - 10
No
Replace IC301.
Details of Servicing and Troubleshooting > Troubleshooting
(5) AUDIO circuit
No audio in EE mode
Does signal appear at
IC801-6, 7 when AV1
audio is input?
No
Check AV1 jack (SC901).
Yes
Does signal appear at
IC801-8, 9 when AV2
audio is input?
No
Check AV2 jack (SC901).
Yes
Does signal appear at
IC801-10, 11 when
AV3 audio is input?
No
Check AV3 jack (JK764)
and VDR P.C.B
No
Check VDR PCB, and
replace if necessary.
Yes
Does signal appear at
IC801-4, 5 during
DVD playback?
Yes
Does signal appear at
IC801-2, 3 during tuner
reception?
No
Check tuner (TU701).
Yes
Is power supplied to
IC801-34, 40?
No
Check 5.0V and
REG12V lines.
Yes
Are control signals
supplied to
IC801-42, 43?
No
Check
SYSTEM microprocessor
(IC501), and replace
if necessary.
Yes
Does audio signal appear
at IC801-16, 17?
No
Replace IC801.
Yes
Does audio signal appear
at PMD02-19, 21?
No
Check wiring between
IC801-16, 17 and
PMD02-19, 21.
Yes
Does audio signal appear
at PMD02-23, 25?
No
Replace VDR PCB.
Yes
Check IC802 and
AV1 jack (SC901).
3 - 11
Details of Servicing and Troubleshooting > Troubleshooting
No audio during playback
Is power supplied to
IC801-34, 40?
No
Check 5.0V and
REG12V lines.
Yes
Envelope waveform at
IC801-44: At least
300 mVp-p?
No
Is A. head switching
signal input to
IC801-41?
No
Check IC501, and
replace if necessary.
Yes
Yes
Check P3D01 connector.
Are control signals
supplied to
IC801-42, 43?
No
Check
SYSTEM microprocessor
(IC501), and replace
if necessary.
Yes
Does audio signal
appear at IC801-35, 37?
No
Check P3D01 connector.
Yes
Does audio signal
appear at IC801-16, 17?
No
Replace IC801.
Yes
No
Does audio signal
appear at PMD02-19, 21?
Check wiring between
IC801-16, 17 and
PMD02-19, 21.
Yes
No
Does audio signal
appear at PMD02-23, 25?
Replace VDR PCB.
Yes
Does audio signal
appear at IC802-21, 25?
No
Replace IC802.
Yes
Check AV1 jack (SC901).
3 - 12
Details of Servicing and Troubleshooting > Troubleshooting
No Hi-Fi audio can be recorded
IIs power supplied to
IC801-34, 40?
No
Check 5.0V and
REG12V lines.
Yes
Are control signals
supplied to
IC801-42, 43?
No
Check
SYSTEM microprocessor
(IC501), and replace
if necessary.
Yes
Does audio signal
appear at IC801-16, 17?
No
Check to see if audio
input signal appears
for each input source
(IC801-2,3,4,5,6,7,8,9,10,11).
Yes
Does FM audio signal
appear at IC801-36?
No
Replace IC801.
Yes
Check P3D01 connector.
(If the connector is normal,
replace the cylinder.)
(6) TUNER circuit
No image during RF output
Is 5 V supplied to
TU701-1?
No
Check 5.0V line.
Yes
Is Hi signal supplied
to TU701-4?
No
Check voltage at
IC501-26
(Hi: Tuner mode).
No
Check wiring between
IC901-23 and TU701-6.
Yes
Does video signal
appear at TU701-6?
Yes
Replace TU701.
3 - 13
Details of Servicing and Troubleshooting > Troubleshooting
3-2-2 Troubleshooting mechanical block
(1) Deck mechanism
No auto rewind at end of tape
Does supply end sensor
(ES502) output "Hi"?
"Hi": At least 3.5V
"Lo": 0.7V or less to 1V
No
Is 5 V supplied to
end sensor?
Yes
No
Check 5.0V line.
Yes
Replace supply end
sensor (ES502).
IR LED (LD501):
0.8-1.5 V?
No
Replace IR LED (LD501).
Yes
Check SYSTEM circuit
(replace IC501)
No fast forward or rewind
Is the position of
mode SW appropriate?
No
Align the boss of mode
SW and hole in drive
gear, and assemble them
(see page 4-4).
Yes
Does capstan motor
rotate?
Yes
SYSTEM circuit
(replace IC501).
No
Is power supplied
to PMC01-2?
No
Check CAP Vcc line.
Yes
Replace capstan motor.
Stops automatically during playback and
search
Is pressure roller
compressed to
capstan shaft?
No
Check position
alignment of cam gear
(see page 4-15).
Yes
Do supply/take-up reel
sensors output pulses?
Yes
Check
SYSTEM microprocessor,
and replace if
necessary.
3 - 14
No
Replace reel sensors.
Details of Servicing and Troubleshooting > Troubleshooting
Tape transport system faulty during playback
Is pressure roller
compressed to capstan
shaft?
No
Check position
alignment of cam gear
(see page 4-15).
Yes
Does take-up reel
rotate?
No
No
Is capstan belt normal?
Yes
Replace capstan belt.
Yes
Check D37 clutch
assembly.
Does capstan motor
rotate?
No
Is power supplied to
PMC01-2?
No
Check CAP Vcc line.
Yes
Yes
Replace capstan motor.
Does cylinder motor
rotate?
Yes
PMC01-11:
DPG/DFG pulses?
No
Is power supplied to
PMC01-8?
No
Check 13.5VA
(DRUM) line.
Yes
Replace cylinder motor.
Yes
Check SYSTEM circuit.
Cassette tape cannot be inserted
Insert a cassette tape.
Does S/W lever assembly
operate normally?
No
Check CST holder
assembly.
Yes
Check output level of
CS501 (CST/REC SW):
No
Tape with record prevention
tab ("L" >"H" >"L")
Tape without record prevention
tab ("L" >"H" >"L" >"H")
Yes
Check SYSTEM circuit
(replace IC501).
3 - 15
Replace CS501
(CST/REC SW).
Details of Servicing and Troubleshooting > Troubleshooting
(2) Front loading mechanism
Cassette tape cannot be inserted
Does S/W lever assembly
operate normally?
No
Is spring in S/W lever
assembly normal?
Yes
No
Replace spring.
Yes
Does CS501
(CST/REC SW)
operate normally?
No
Replace CS501
(CST/REC SW).
Yes
Check SYSTEM circuit
(replace IC501).
Is 5.0V power line on
VCR PCB normal?
No
Check power supply line.
Yes
Does 5.0 V appear
No
between CS501
(CST/REC SW) and GND?
Is there short-circuit
No
between CS501
(CST/REC SW) and GND?
Yes
Yes
Check mode SW or
SYSTEM circuit.
Replace CS501
(CST/REC SW).
Repair shorted circuit.
Cassette tape does not eject
No
Check L/D motor or
drive IC.
No
Replace S/W lever
assembly.
No
Replace F/L arm
assembly.
Does L/D motor rotate?
Yes
Does S/W lever assembly
operate normally?
Yes
Does F/L arm assembly
operate normally?
Yes
No
Does door open normally?
Replace door opener.
3 - 16
4
Disassembly and Reassembly
4-1 Order of Disassembly
Refer to the Disassembly Flowchart in Fig. 4-1-1 for the order of removing components. When
reassembling components, use the reverse order to removal unless otherwise specified.
Reading Disassembly Flowchart:
After locating the target component in the flowchart, remove all components of the target in
sequence, following the arrows (routes) from the top of flowchart. If multiple routes exist to the
target component from the top of flowchart, remove all the components on all the routes.
Parts to remove
Item
Parts to remove
Item
Top cover
4-2 (1)
FAN motor
4-2 (3)
SMPS P.C.B
4-2 (4)
Deck mechanism
4-2 (5)
VCR P.C.B
4-2 (7)
JACK P.C.B, KEY P.C.B
4-2 (9)
Front panel
4-2 (2)
DVD Multi drive
4-2 (8)
VDR P.C.B
4-2 (9)
Parts to remove
Item
TIMER P.C.B
4-2 (6)
Fig. 4-1-1 Disassembly Flowchart
4-2 Cabinet Disassembly
Information:
Numbers in figures are step numbers in disassembly procedure, and letters in brackets [ ] show the
types of screw.
(1) Top Cover
1) Remove the seven screws [A].
2) Slightly open both ends on the front side of top cover and lift the top cover in the direction of the
arrow.
Top Cover
1) Screw [A]
[A] M3X8 [Black]
2)
1) Screw [A]
1) Screw [A]
Fig. 4-2-1 Top cover
4-1
Disassembly and Reassembly > Cabinet Disassembly
(2) Front Panel
1) Release three tabs (A), two tabs (B) and two tabs (C) in this order. (The tab (A) and the tab (C)
should be released at the same time, respectively.)
2) Slowly move the front panel forward to remove it.
Caution when reassembling front panel:
Reattach the front panel while pushing the cassette door so that the cassette door open/close lever
is positioned outside the door.
1) Tab(A)
1) Tab(B)
1) Tab(C)
1) Tab(B)
Cassette Door
Cassette Door
open/close lever
Front Panel
Fig. 4-2-2 Front Panel
(3) FAN Motor
1) Unplug the connector on SMPS P.C.B.
2) Remove two screws [B] from the rear panel.
Caution when reinstalling FAN motor:
Wind the cord of FAN motor around the cords on VDR P.C.B, as shown in the figure, to secure
them.
1) Connector
Wind around the cords.
[B] M3X20 [Black]
2) Screw [B]
FAN Motor
Fig. 4-2-3 FAN Motor
4-2
Disassembly and Reassembly > Cabinet Disassembly
(4) SMPS P.C.B
1) Remove the power cable form rear panel.
2) Unplug the five connectors on SMPS P.C.B.
3) Remove screw [C] on rear panel, three screws [D] and screw [E] on the SMPS P.C.B, and then lift
the SMPS P.C.B block.
4) Remove four screws [F] that secure the heat sink, and then separate the SMPS P.C.B.
Caution when reinstalling heat sink:
Secure the heat sink, identified [Caution] in the figure, on the back of P.C.B, and make sure that a
cushion is attached between the heat sink and P.C.B.
3) Screw [D]
3) Screw [E]
3) Screw [D]
2) Connector
1) Power cable
3) Screw [C]
2) Connector
SMPS P.C.B Block
[C] M3X8 [Black] [D] M3X8 [Silver]
[E] M3X21 [Gold]
Fig. 4-2-4 SMPS P.C.B (1)
[F] M3X6.5 [Gold]
4) Screw [F]
Heat sink
SMPS
P.C.B
Caution
Caution
Cusion
4) Screw [F]
Secure heat sink on
the rear of PCB.
Fig. 4-2-5 SMPS P.C.B (2)
4-3
Disassembly and Reassembly > Cabinet Disassembly
(5) Deck mechanism
1) Unplug the connector from A/C head.
2) Remove four screws [D] and two screws [E].
3) While unplugging the three direct connectors that connect the deck mechanism and VCR P.C.B,
lift the entire deck mechanism straight up.
2) Screw [E]
1) Connector
2) Screw [E]
Positioning pole
[D] M3X12[Silver] [E] M3X21[Gold]
Positioning pole
3) Direct Connector
3) Direct Connector
Deck Mechanism
Guide LED
2) Screw [D]
Fig. 4-2-6 Deck Mechanism
Caution when reinstalling deck mechanism:
Make sure of the following when reinstalling the deck mechanism:
The mode switch (MS501) on VCR P.C.B is positioned as in the figure shown below.
The drive gear on the back of deck mechanism is positioned as in the figure shown below.
While keeping the two positioning poles and guide LEDs aligned, assemble the deck mechanism at
right angles: The boss of mode switch will fit into the hole in drive gear.
MODE SW
Align
BOSS
Deck Mechanism-Bottom view
VCR P.C.B
Drive Gear
Fig. 4-2-7 Reassembling Deck Mechanism
4-4
Disassembly and Reassembly > Cabinet Disassembly
(6) TIMER P.C.B
1) Remove the front holder.
2) Unplug the direct connectors from the VCR P.C.B.
3) Unplug the connector.
Information
Release the four stoppers of front holder: The TIMER P.C.B can be detached without removing the
deck mechanism.
1) Front Holder
3) Connector
Stopper
2) Direct Connector
TIMER P.C.B
Fig. 4-2-8 TIMER P.C.B
(7) VCR P.C.B
1) Disconnect the two FFCs.
2) Remove four screws [C] from the rear panel.
3) Remove four screws [F] on the P.C.B.
4) Release the stopper.
5) Lift the entire VCR P.C.B, and then remove it in the direction of the arrow.
Caution when reinstalling VCR P.C.B:
Position the VCR P.C.B according to the positioning boss.
*FFC: Flexible flat cable
3) Screw [F]
1) FFC Connector
3) Screw [F]
5)
2) Screw [C]
3) Screw [F]
2) Screw [C]
3) Screw [F]
[C] M3X8 [Black] [F] M3X6.5 [Gold]
VCR P.C.B
4) Stopper
Positioning boss
Fig. 4-2-9 VCR P.C.B
4-5
Disassembly and Reassembly > Cabinet Disassembly
(8) DVD multi-drive
1) Unplug the connector on SMPS P.C.B.
2) Disconnect the FFC on the VDR P.C.B: Lift both sides of the connector up (a), tilt it in the
direction of arrow (b) to release the stoppers, and then disconnect the FFC.
3) Remove four screws [G], and then slowly lift the DVD multi-drive.
4) Release the screws on both sides of the drive holder, and then remove the DVD multi-drive.
2) FFC
1) Connector
*FFC: Flexible flat cable
a)
b)
a)
3) Screw [G]
3) Screw [G]
Drive Holder
[G] M3X8 [Silver]
3) Screw [G]
Cusion
DVD Multi Drive
Fig. 4-2-10 DVD Multi Drive
(9) VDR, JACK and KEY P.C.Bs
VDR P.C.B
1) Unplug the connector and disconnect the two FFCs on the VDR P.C.B.
2) Remove five screws [F], and then remove the VDR P.C.B.
JACK P.C.B
3) Unplug the connector on JACK P.C.B.
4) Remove two screws [F], and then remove the JACK P.C.B.
VDR P.C.B
KEY P.C.B
5) Remove screw [D], and then remove the KEY P.C.B.
*FFC: Flexible flat cable
2) Screw [F]
1)FFC
2) Screw [F]
2) Screw [F]
[D] M3X12 [Silver] [F] M3X6.5 [Gold]
1)FFC
1) Connector
4) Screw [F]
JACK P.C.B
3) Connector
KEY P.C.B
Lay out the cable from
KEY PCB as shown.
5) Screw [D]
Fig. 4-2-11 VDR P.C.B, JACK P.C.B, KEY P.C.B
4-6
4) Screw [F]
Disassembly and Reassembly > Deck Mechanism Parts Locations
4-3 Deck Mechanism Parts Locations
Disassembly Item
start no.
no.
9
3
4
2
6
2
2,3
2,3,4
2,3,4,5
5
Fig. 4-3-1 Top View of Mechanism-1
8
2,3
2,3
2,3,12,13
11
10
17
1
15
32
16
18
13
16
16
16,17
20,21
34
7
14
Fig. 4-3-2 Top View of Mechanism-2
19
31
20
30
30
23
31
20
24
23
33
27
22
26
28
29
21
25
20
20,21,22,
23,24,25
20,21,22,
23,24,25,26
20,21,22,
23,24,25,26
20,21,22,
23,24,25,26
24
2,3,13,
24,30
24,30
2,3,13
A-1
A-2
A-2
A-2
A-2
A-2
A-2
A-3
A-3
A-3
A-3
A-4
A-4
A-4
A-5
A-5
A-5
A-5
A-6
A-6
21
22
23
24
25
26
27
Tension lever
A-7
28
Spring lever
A-7
29
Brake lever
A-7
30
P2 gear assembly/
P3 gear assembly
P2 base assembly/
P3 base assembly
Loading base
Tension base
Jog idler arm assembly
A-8
31
32
33
34
Fig. 4-3-3 Bottom View of Mechanism
Information
Use the reverse procedure to removal when reinstalling components.
4-7
Disassembly
reference
diagram
Drum assembly
Top plate
CST holder assembly
F/L rack gear assembly
Door opener
F/L arm assembly
S/W lever assembly
L/D motor assembly
Wheel gear
F/E head
A/C head assembly
T brake assembly
Tension arm assembly
S reel/T reel
P4 base assembly
Lid opener
Pressure arm assembly
Take-up arm
Capstan supporter
Capstan belt,
Capstan motor
F/R lever
D37 clutch assembly
Drive gear/cam gear
Sector gear
Capstan brake assembly
Slider plate
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
14
12
Part name
A-6
A-6
A-7
A-7
A-7
A-7
A-8
A-8
A-9
A-9
Disassembly and Reassembly > Deck Mechanism Disassembly
4-4 Deck Mechanism Disassembly
(1) Drum assembly (Fig. A-1)
1) Disconnect the flat cable between the drum assembly and capstan motor.
2) Remove three screws (S1), and then remove the drum assembly upward.
3) Release hooks (H1, H2) only if necessary, and then separate the FPC holder and FPC cap.
Drum Ass'y
Flat cable
(S-1)
FPC Cap
(S-1)
(S-1)
FPC Cap
.
H2
H1
FPC Drum
FPC Holder
FPC Holder
Diagram viewed from
the opposite side
Fig. A-1 Drum Ass'y
4-8
Disassembly and Reassembly > Deck Mechanism Disassembly
(2) Top plate (Fig. A-2-1)
1) Use a flat-bladed screwdriver, etc. to release
portion (B) at the right of top plate in the
direction of the arrow.
2) Use the same procedure to release portion
(B’) at the left of top plate in the direction of
the arrow.
Note:
When reinstalling the top plate, align portions
(C) and (C’).
(C)
(B')
(C')
(B)
(3) CST holder assembly (Fig. A-2-2)
1) Move the CST holder assembly in the
direction of arrow (D) to release the CST
holder assembly from the slit in chassis.
2) Also release the CST holder assembly from
the right slit in chassis.
Note:
When reinstalling, first insert portion (E) of the
CST holder assembly into the slit in chassis,
and then fit the remaining bosses into the slits
in chassis in sequence.
CST Holder Ass'y
Chassis
(D)
(4) F/L rack gear assembly (Fig. A-2-3)
1) Release hook (H3), and then slide the F/L
rack gear assembly in the direction of arrow
(A) to remove it.
Note:
When reinstalling the F/L rack gear assembly,
assemble the drive gear and F/L rack gear as
shown in the figure.
F/L Rack Gear Ass'y
Drive Gear
(5) Door opener (Fig. A-2-4)
1) Turn the door opener clockwise to release it
from the guide hole in chassis.
(6) F/L arm assembly (Fig. A-2-5)
1) Turn the left side of F/L arm assembly in the
direction of the arrow to release it from the
slit in chassis.
Chassis
(7) S/W lever assembly (Fig. A-2-6)
1) Release hook (H4) and push it in the
direction of the arrow to remove the S/W
lever.
Note:
Take care not to lose the spring attached to the
S/W lever assembly.
4-9
(H4)
Disassembly and Reassembly > Deck Mechanism Disassembly
Top Plate
(Fig.A-2-1)
(B')
(C)
(B)
CST Holder Ass'y
(Fig.A-2-2)
(E)
F/L Arm Ass'y
(Fig.A-2-5)
S/W Lever Ass'y
(Fig.A-2-6)
(H4)
(E)
Door Opener
(Fig.A-2-4)
(H3)
(A)
F/L Rack Gear Ass'y
(Fig.A-2-3)
Fig. A-2 Top Plate, CST Holder Ass'y, F/L Rack Gear Ass'y,
Door Opener, F/L Arm Ass'y, S/W Lever Ass'y
4 - 10
Disassembly and Reassembly > Deck Mechanism Disassembly
(8) L/D motor assembly (Fig. A-3-1)
(10) F/E head (Fig. A-3-3)
1) Unplug connector (C1).
2) Remove screw (S4), and then remove the L/D
motor assembly.
(9) Wheel gear (Fig. A-3-2)
1) Turn the entire E/F head in the direction of
arrow (A) to release its engagement with
chassis.
(11) A/C head assembly (Fig. A-3-4)
1) Release hook (H5) of wheel gear shaft, and
then lift the wheel gear.
1) Remove screw (S5), and then lift the A/C
head assembly.
(H5)
Wheel Gear
(Fig.A-3-2)
A/C Head Ass'y
(Fig.A-3-4)
L/D Motor Ass'y
(S5)
(Fig.A-3-1)
(A)
F/E Head
(C1)
(Fig.A-3-3)
(S4)
Fig. A-3 L/D Motor Ass'y, Wheel Gear, F/E Head, A/C Head Ass'y
4 - 11
Disassembly and Reassembly > Deck Mechanism Disassembly
(12) T brake assembly (Fig. A-4-1)
(14) S reel and T reel (Fig. A-4-3)
1) Release the tension spring from hook (H6) of
chassis.
2) Turn the T brake arm counterclockwise to
release its engagement with chassis, and
then lift it.
1) Lift the S reel and T reel.
Take care during reassembly that the S reel
and T reel are not reversed.
(13) Tension arm assembly (Fig. A-4-2)
1) Release the tension spring from hook (H7) of
spring lever.
2) Release hook (H8) of tension base, and then
lift the tension arm assembly.
S reel
T reel
Tension Arm Ass'y
(Fig.A-4-2)
T reel
(Fig.A-4-3)
S reel
Tension Spring
(Fig.A-4-3)
T Brake Ass'y
Tension Spring
(Fig.A-4-1)
(H8)
(H7)
(H6)
Fig. A-4 T Brake Ass'y, Tension Arm Ass'y, S reel, T reel
4 - 12
Disassembly and Reassembly > Deck Mechanism Disassembly
Note:
A spring is attached between the pressure arm
assembly and chassis: Take care not to lose it.
When reinstalling the pressure arm assembly,
make sure that you insert the boss at portion
(C) of pressure arm assembly into the slit in
cam gear at the back of chassis.
(15) P4 base assembly (Fig. A-5-1)
1) Release portion (A) of the P4 base assembly
from the boss of chassis.
2) Turn the P4 base assembly in the direction
of the arrow to release its engagement with
chassis.
(16) Lid opener (Fig. A-5-2)
(18) Take-up arm (Fig. A-5-4)
1) Release portion (B) of the lid opener from
the boss of chassis.
2) Turn the lid opener in the direction of the
arrow to release its engagement with
chassis.
1) Lift the take-up arm to release it from hook
(H9) of chassis.
Note:
When reinstalling the take-up arm, make sure
that you insert the boss at portion (D) of takeup arm into the slit in cam gear at the back of
chassis.
(17) Pressure arm assembly (Fig. A-5-3)
1) Lift the pressure arm assembly.
Lid Opener
(Fig.A-5-2)
(B)
Pressure Arm Ass'y
(Fig.A-5-3)
(C)
P4 Base Ass'y
(Fig.A-5-1)
(H9)
(D)
Take-up Arm
(Fig.A-5-4)
(A)
Chassis
BOSS (Pressure Arm Ass'y)
Cam Gear
BOSS (Take-up Arm)
Fig. A-5 P4 Base Ass'y, Lid Opener, Pressure Arm Ass'y, Take-up Arm
4 - 13
Disassembly and Reassembly > Deck Mechanism Disassembly
(19) Capstan supporter (Fig. A-6-1)
(21) F/R lever (Fig. A-6-4)
1) Use a Philips (+) screwdriver to turn the
capstan supporter 90° clockwise and release
it from the chassis.
1) Release lock tab (L1) in the direction of the
arrow, and then lift the F/R lever.
(22) D37 clutch assembly (Fig. A-6-5)
1) Remove washer (W1), and the lift the D37
clutch assembly.
(20) Capstan belt (Fig. A-6-2) and
capstan motor (Fig. A-6-3)
1) Remove the capstan belt.
2) Remove three screws (S6), and then lift the
capstan motor.
Capstan Supporter
(Fig.A-6-1)
Capstan Belt
(Fig.A-6-2)
Capstan Motor
(Fig.A-6-3)
Washer (W1)
D37 Clutch Ass'y
(Fig.A-6-5)
(L1)
F/R Lever
(Fig.A-6-4)
Chassis
(S6)
Fig. A-6 Capstan Supporter, Capstan Belt, Capstan Motor,
F/R Lever, D37 Clutch Ass'y
4 - 14
Disassembly and Reassembly > Deck Mechanism Disassembly
(23) Driver gear (Fig. A-7-1) and
(26) Slider plate (Fig. A-7-5)
cam gear (Fig. A-7-2)
1) Remove washer (W2), and then lift the drive
gear.
2) Release hook (H10) of the cam gear shaft,
and then lift the cam gear.
Note:
Align these positions of gears during
reassembly:
1) Align hole (A) in drive gear and hole (B) in
cam gear.
2) Align hole (C) in cam gear and the hole in
chassis.
1) Release the engagement with chassis, and
then lift the slider plate.
(27) Tension lever (Fig. A-7-6)
1) Turn the tension lever counterclockwise to
release it from guide (A) of chassis.
(28) Spring lever (Fig. A-7-7)
1) Turn the spring lever in the direction of the
arrow to release portion (B) from the guide
of chassis.
(29) Brake lever (Fig. A-7-8)
(24) Sector gear (Fig. A-7-3)
1) Release hook (H11) of sector gear, and then
lift the sector gear.
(25) Capstan brake assembly (Fig. A-7-4)
1) Lift the brake lever.
Note:
When reinstalling the sector gear and slider
plate, perform the position alignment shown in
the figure on next page.
1) Release lock tab (L2) from the surface of
chassis, and then lift the capstan brake.
(H11)
Sector Gear
(Fig.A-7-3)
Capstan Brake Ass'y
(Fig.A-7-4)
Hole (B) in Cam Gear
(L2)
(H10)
Hole (C) in Can Gear
Slider Plate
(Fig.A-7-5)
Cam Gear
(Fig.A-7-2)
(W2)
Washer
Drive Gear
(Fig.A-7-1)
(B)
Tension Lever
(Fig.A-7-6)
Spring Lever
(Fig.A-7-7)
Brake Lever
(Fig.A-7-8)
Loading Base
Hole (A) in Drive Gear
(A)
Chassis
Fig. A-7 Drive Gear, Cam Gear, Sector Gear, Capstan Brake Ass'y, Slider Plate,
Tension Lever, Spring Lever, Brake Lever
4 - 15
Disassembly and Reassembly > Deck Mechanism Disassembly
(30) P2 gear assembly (Fig. A-8-1) and
(31) P2 base assembly (Fig. A-8-3) and
P3 gear assembly (Fig. A-8-2)
P3 base assembly (Fig. A-8-4)
1) Lift the P3 gear assembly.
2) Lift the P2 gear assembly.
Note:
When reinstalling the P2 and P3 gear
assemblies, be sure to align the holes in them.
1) Slide the P2 base assembly in the direction
of arrow (A) to release it from the guide hole
in chassis.
2) Slide the P3 base assembly in the direction
of arrow (B) to release it from the guide hole
in chassis.
(32) Loading base (Fig. A-8-5)
1) Release three hooks (H12, H13, H14), and
then lift the loading base.
Hole in P2 Gear Ass'y
Hole in P3 Gear Ass'y
P3 Gear Ass'y
(Fig.A-8-2)
P2 Gear Ass'y
(Fig.A-8-1)
(H12)
BOSS (Tension Lever)
(H13)
Gear Glove (A)
Hole (B) in
Slider Plate
(H14)
(B)
Loading Base
(Fig.A-8-5)
(A)
Chassis
P3 Base Ass'y
(Fig.A-8-4)
P2 Base Ass'y
(Fig.A-8-3)
Fig. A-8 P2 Gear Ass'y, P3 Gear Ass'y, P2 Base Ass'y, P3 Base Ass'y, Loading Base
4 - 16
Disassembly and Reassembly > Deck Mechanism Disassembly
(33) Tension base (Fig. A-9-1)
(34) Jog idler arm assembly (Fig. A-9-2)
1) Release portion (A) of tension base from the
boss of chassis.
2) Turn the tension base in the direction of the
arrow to release its engagement with
chassis.
1) Hold portions (B) and (C) of jog idler arm
assembly on both sides, and then remove the
arm assembly.
Note:
Take care that portion (D) does not strike the
chassis during disassembly.
Tension Base
(Fig.A-9-1)
(A)
Jog Idler Arm Ass'y
(Fig.A-9-2)
(B)
(C)
Chassis
(D)
Fig. A-9 Tension Base, Jog Idler Arm Ass'y
4 - 17
Disassembly and Reassembly > Checking Mode after Reassembling Deck Mechanism
4-5 Checking Mode after Reassembling Deck Mechanism
After disassembling the deck mechanism, check the positions of the following gears when
reassembling it: If the positions of gears drift, the deck mechanism will not operate normally.
Turn the cam gear with the L/D motor assembly removed, and make sure that loading and
unloading are performed normally.
1) Make sure that hole (A’) in chassis on the surface of deck mechanism is aligned with hole (A) in
cam gear: If they are not aligned, remove the L/D motor assembly, and then turn the cam gear
until the holes are aligned.
2) Make sure that the small hole in cam gear on the back of deck mechanism is aligned with hole
(B) in drive gear: If they are not aligned, remove the drive gear, align their positions, and then
reassemble the gears.
L/D Motor Ass'y
Cam Gear
(A')
(A)
Hole in Chassis
Hole in Cam Gear
Top View of Deck Mechanism
Fig. 4-5-1 Cam Gear Position Alignment
Cam Gear
(B)
Drive Gear
The holes in cam gear and drive gear
must be aligned.
Bottom View of Deck Mechanism
Fig. 4-5-2 Drive Gear Position Alignment
4 - 18
5
Adjustment / Maintenance
5-1 Set-up for Adjustment
(1) Test equipment necessary for adjustment
1) Dual-trace oscilloscope
2) Color bar generator
3) Monitor TV
4) Blank tape (VHS)
(2) Connections of test equipment
Connect the equipment as follows when otherwise not specified.
1) Connect a color bar generator to the video input jack.
2) Connect a monitor TV to the EURO AV1 AUDIO/VIDEO jack.
(3) Cautions on adjustment
1) The following conditions apply when otherwise not specified.
Probe of oscilloscope: 10:1
Synchronization of oscilloscope: Internal sync
2) When performing more than one adjustment, follow the specified oder.
(4) List of Adjustment jigs
Cassett Torque Meter
(SRK-VHT-303)
SR K
Alignment tape
-V
HT
-S
Torque Gauge (600 g/cm)
300
250
200
150
0 50
VID
CAS EO
S
TOR ETTE
Q
MET UE
VHT ER
-303
-T
K- V HT0
SR
50
100
150
200
300
Torque Gauge Adaptor
250
Guide roller screwdriver
Parts No. 7069064
5-1
Philips (+) screwdriver
Adjustment / Maintenance > VCR Electrical Adjustment
5-2 VCR Electrical Adjustment
5-2-1 Head switching adjustment
(1) Supplement
If the SYSTEM microprocessor (IC501) or EEPROM (IC503) on VCR P.C.B is replaced, be sure to
perform the head switching adjustment.
If the drum assembly is replaced, be sure to perform the X-value adjustment and head switching
adjustment.
(2) Adjustment method
1) Connect oscilloscope CH-1 to the H/SW terminal on VCR P.C.B, and CH-2 to the VCR VIDEO
terminal on VDR P.C.B.
2) Use CH-1 (H/SW) to trigger the oscilloscope.
3) Play back the alignment tape.
4) Play back the tape for approx. 3 seconds, while simultaneously holding down the REC and
PLAY buttons on recorder for several seconds (FL display: _ _).
5) Simultaneously hold down the REC and PLAY buttons on recorder for several seconds again:
The adjustment will automatically start.
When the adjustment is complete, “PG” will appear in the FL display.
6) Observe the waveforms on oscilloscope, and make sure that the phase from the vertical sync
signal to the leading edge (trigger position) of H/SW pulse is 6.5H ± 0.5H.
Oscilloscope
TP
[VCR
VIDEO]
(CH2)
CH1 CH2
(CH1)
VDR P.C.B
H/SW
(TP)
H/SW "VCR VIDEO"
(VCR P.C.B) (VDR P.C.B)
VCR P.C.B
Fig. 5-2-1 Connection Diagram
(50µs/div.)
H/SW
(5V/div.)
V-Sync
VCR VIDEO
(500mV/div.)
1H
1H
6.5H±0.5H
Trigger Point
Fig. 5-2-2 Waveform Diagram
5-2
Adjustment / Maintenance > Deck Mechanism Adjustment
5-3 Deck Mechanism Tape Transport System Adjustment
The tape transport components were precisely adjusted before the recorder was shipped from the
factory. They do not need to be adjusted except for the following cases:
1) Noise appears on the screen during playback.
2) Tape is damaged.
3) Any of the tape transport components is replaced
If any of the above occurs, or if any of the tape transport components is replaced, first run a E-240
tape and make sure that excessive tape winkling does not occur at the P2/P3 guide rollers, tape run
guideline on lower drum, A/C head or P4 guide post.
If tape winkling occurs at the P2/P3 guide rollers or tape run guideline on lower drum assembly,
turn the height adjustment screws of P2/P3 guide rollers until winkling is eliminated
See “5-3-1 Guide roller height adjustment”.
If tape winkling occurs at the post of P4 base assembly, perform the A/C head height and tilt
adjustments.
P2/P3 Guide Roller Height
See “5-3-2 A/C head adjustment”.
Adjustment Screw
5-3-1 Guide roller height adjustment
(1) Rough adjustment
1) Run a E-240 blank tape, and check the tape
run guideline on lower drum.
2) If the tape rides under the tape run
guideline, turn the guide roller height
adjustment screw to the left to adjust.
3) If the tape is above the tape run guideline,
turn the guide roller height adjustment
screw to the right to adjust.
Fig. 5-3-1 P2/P3 Guide Roller Height
Adjustment Screws
Oscilloscope
(CH2) (CH1)
(2) Fine adjustment
CH-1
1) Connect oscilloscope CH-1 to the H/SW
terminal on VCR P.C.B, and CH-2 to the RF
terminal.
2) Use CH-1 (H/SW) to trigger the oscilloscope.
3) Play back the alignment tape.
(If the drum assembly is replaced, adjust the
tracking so that the FM output is maximal.)
4) Finely adjust the guide roller height
adjustment screw so that the supply and
take-up portions of RF envelope are flat.
5) Move the tracking in both directions, and
make sure that the FM envelope waveform
drops evenly.
CH-2
RF H/SW
H/SW RF
(VCR P.C.B) (VCR P.C.B)
VCR P.C.B
P2 Guide
Roller Adjust
P3 Guide Roller Adjust
Tracking optimized
Adjust the P2/P3 guide roller
height adjustment screws to
flatten the waveform.
When tracking is moved
in both directions
Fig. 5-3-2 Guide Roller Fine Adjustment
5-3
Adjustment / Maintenance > Deck Mechanism Adjustment
5-3-2 A/C head adjustment
(1) Rough adjustment (height adjustment and tilt adjustment)
(Play back the alignment tape: Perform this
adjustment only if no audio signal is output.)
1) Make sure that the A/C head base assembly
satisfies the specifications in Fig. 5-3-3(a).
2) Run a E-240 blank tape and make sure that
no curling or winkling of tape occurs at the
lower flange of P4 guide post [see Fig. 5-33(c)].
3) If curling or winkling occurs, slowly turn tilt
adjustment screw (C) to precisely adjust [see
Fig. 5-3-3(b)].
4) Finely adjust height adjustment screw (B)
and tilt adjustment screw (C) so that the
lower edge of tape is positioned at the
bottom of control head as shown in Fig. 5-33(c).
X-Value
Adjusting Hole
Fixing Screw
Azimuth
Adjustment
Screw (A)
Tilt Adjusting
Screw (C)
Height Adjusting
Screw (B)
A/C Head Ass'y
(b) A/C head adjustment screws
Tape
Control Head
P4 Guide Post
8.3mm
0.2-0.25 mm from bottom
edge of tape
Parallel
A/C Head Base
(c) A/C head height adjustment
(a) A/C head base specifications
Fig. 5-3-3 A/C Head Rough Adjustment
(2) Tape transport check between P4 guide post and pressure roller
1) Play back a tape recorded in SP mode.
2) Set to the reverse playback mode, and make sure that no curling or wrinkling of tape occurs
between the P4 guide post and pressure roller.
If curling or wrinkling occurs, slowly turn tilt adjustment screw (C) to precisely adjust [see Fig. 53-3(b)].
1kHz AUDIO
(3) Fine adjustment (azimuth adjustment)
1) Play back the alignment tape.
2) Observe the audio output waveform on
oscilloscope.
3) Finely adjust azimuth adjustment screw (A)
so that the audio output level is maximal at
the 1 kHz and 7 kHz audio signals of
alignment tape.
Maximize output level.
7kHz AUDIO
Maximize output level.
Fig. 5-3-4 A/C Head Fine Adjustment
5-4
Adjustment / Maintenance > Deck Mechanism Adjustment
5-3-3 X-value adjustment
1) Connect oscilloscope CH-1 to the H/SW
terminal on VCR P.C.B, and CH-2 to the RF
terminal.
2) Use CH-1 (H/SW) to trigger the oscilloscope.
3) Play back the color-bar portion of alignment
tape, and activate auto tracking.
4) Slightly loosen the screw that secures the A/
C head (do not loosen excessively).
5) Insert a 3-4 Philips (+) screwdriver into the
hole in chassis of X-value adjustment
mechanical block, tilt the screwdriver to the
left and right until the CH-2 FM ENV
output is maximal.
6) Tighten the securing screw.
Oscilloscope
(CH2) (CH1)
CH-1
CH-2
RF H/SW
H/SW RF
(VCR P.C.B) (VCR P.C.B)
VCR P.C.B
(a) Connection Diagram
Hole in Chassis
Left
Right
X-VALUE Adjusting SLIT
Fixing Screw
A/C Head Ass'y
(b) Adjustment screw diagram
Fig. 5-3-5 X-Value Adjustment
5-3-4 Adjustments after replacing drum assembly
After replacing the drum assembly, check and adjust the following:
1) Guide roller height adjustment
2) X-value adjustment
3) Head switching adjustment
5-5
Adjustment / Maintenance > Deck Mechanism Adjustment
5-3-5 Check after adjustment
(1) FM output check when switching from VCR search to playback
Press the playback button during VCR search, and make sure that the appropriate amplitudes of
FM envelope and audio outputs can be obtained within the specified time.
1) Connect oscilloscope CH-1 to the FM ENV terminal on VCR P.C.B, and CH-2 to the audio output
terminal.
2) Play back the alignment tape.
3) Observe the waveforms on oscilloscope: Measure the times until the appropriate amplitudes are
obtained when the playback button is pressed during reverse search.
Specifications: FM envelope within 5 seconds; audio output within 10 seconds
4) Press the playback button during forward search, and measure the times in the same way.
5) If the specifications are not satisfied, perform the following adjustments again:
A/C head adjustment
X-value adjustment
(2) Tape curling/wrinkling check
1) Run an E-240 tape, and make sure that no curling or wrinkling occurs at the start, middle or end
of tape.
2) If curling or wrinkling occurs, perform the following adjustments again:
Guide roller height adjustment
A/C head adjustment
5-3-6 Method of setting the mechanism to loading status without inserting tape
1) Unplug the power cord from AC outlet.
2) Remove the top cover and front panel.
3) Use black masking tape, etc. to shield light from the end sensors on both sides.
4) Plug the power cord into AC outlet to power the recorder.
5) While pressing the stop lever of CST holder assembly, load the CST holder assembly (it will
automatically load midway).
6) When the CST holder assembly descends to chassis, the cylinder will rotate, and the P2/P3 base
assemblies will operate in the loading status to go to stand by.
This status will allow you to input each mode. However, when rewind is performed, the power will
turn off in a few seconds, since the take-up reel is in the stop status and no reel pulse can be
detected.
Therefore, for rewind operation, manually rotate the take-up reel.
5-6
Adjustment / Maintenance > Deck Mechanism Adjustment
5-3-7 Reel torques
(1) Preparations when using a torque gauge
1) Set the recorder to the loading status, referring to “5-3-6 Method of setting the mechanism to
loading status without inserting tape”.
2) Assemble the torque gauge adapter and torque gauge, and place them on reel.
Torque Gauge
Torque Gauge
Adaptor
Reel Table
3) Check the torque values in the following operation modes:
Item
Fast forward torque
Rewind torque
Playback torque
Reverse search torque
Operation mode
Fast forward
Rewind
Playback
Reverse search
Gauge
Torque gauge
Torque gauge
Torque meter
Torque meter
5-7
Measured reel
Take-up
Supply
Take-up
Supply
Torque value
At least 400 g/cm
At least 400 g/cm
40-100 g/cm
120-210 g/cm
Adjustment / Maintenance > Maintenance
5-4 Maintenance
5-4-1 Maintenance and inspection
The deck mechanism uses very precise components to ensure the compatibility between VCR
models: If any of the mechanical components are dirty or the performance is degraded, the
symptoms will be similar to those when the mechanism is faulty.
For clear images, it is necessary to periodically clean and lubricate the mechanism and replace any
faulty components.
(1) Reference for maintenance and inspection
The time for maintenance and inspection depends on the environment and the way the VCR is
used: For ordinary home use, maintenance and inspection every 1,000 hours will ensure clear images.
Time used per day
Period for reaching 1,000 hours
Approx. 1 hour
Approx. 2 hours
Approx. 3 hours
Approx. 3 years
Approx. 1.5 years
Approx. 1 year
(2) Items necessary for maintenance and inspection
1) Head cleaning kit
2) Oil and grease for maintenance
3) Alcohol
4) Cleaning cloth
(3) Cleaning video heads
It is recommended that you use a generally available cleaning tape to clean the heads.
If noise cannot be removed completely with a cleaning tape, use a cleaning cloth to clean the heads
and transport system.
[Cleaning method using cleaning tape]
Play back the cleaning tape in the same way as an ordinary tape for approx. 30 seconds.
[Cleaning method using cleaning cloth]
1) Lightly fit the cleaning cloth to the head, and turn the rotating cylinder gently to the left and
right. Turn the rotating cylinder one turn to also clean its outer circumference. (Cleaning with
cleaning cloth moistened with alcohol is more effective.)
2) Do not use a cleaning cloth to which oil adheres or a dirty one.
Drum Ass'y
Cleaning cloth
Head Tip
Moisten with alcohol.
Lightly fit cleaning cloth to the head tip and
turn the cylinder to the left and right.
Fig. 5-4-1 Cleaning Method using Cleaning Cloth
5-8
Adjustment / Maintenance > Maintenance
(4) Problem guide
If the time of using the VCR exceeds approx. 1,000 hours, the phenomena shown in Table 5-4-1 may
appear on playback images. These phenomena may disappear when the mechanical components are
cleaned or lubricated. Check the use time, etc., and if judged that it is time for maintenance and
inspection, inspect the portions to be checked according to Table 5-4-1.
Note:
If normal operation is not restored after cleaning, the components marked in component
replacement column probably need to be replaced, since their performance may be degraded.
Table 5-4-1 List of phenomena
Phenomenon
Color beats
Cause
Portions to be checked
Clean part of F/E head where
tape is in contact
Poor S/N, no color Dirt on video heads
Clean video heads
Vertical jitter,
Dirt on video heads (drum), Clean video heads (drum) and
horizontal jitter
tape transport system
tape transport system.
Low volume, sound Dirt on A/C head
Clean part of A/C head where
distortion
tape is in contact
Tape twisted
Dirt on pressure roller,
Clean pressure roller and capstan
capstan belt
shaft. Check capstan belt.
No tape run,
Check torque of D37 clutch
Insufficient torque of D37
slack tape
clutch assembly
assembly
Dirt on video heads (drum), Clean and check tape transport
system.
tape transport system
Dirt on F/E head
Component
Component
replacement
(a)
(b)
(b)
(c)
(d)
(e)
(f)
(e)
(a)
(b)
(c)
(f)
(d)
Fig. 5-4-2 Locations of Components to Be Checked
5-9
Adjustment / Maintenance > Maintenance
5-4-2 Lubricating oil and greasing
(1) Greasing procedure
Coat components with an appropriate amount of grease applied to a rod or brush. Take care that
excessive grease does not adhere to tape transport system or drive system. If there is too much
grease on them, use gauze moistened with alcohol to wipe it off. Periodically grease components
with a reference of 500-hour use.
(2) Greases to be used
KG-684G (green)
PL-433 (yellow)
(3) Lubricating/coating locations
P2/P3 guide tape run portions
P2/P3 guide supports
[KG-684G]
Wheel gear shaft
[KG-684G]
P2/P3 guide tape
run portions
[KG-684G]
Pressure arm shaft
[KG-684G]
Reel Shaft
[PL-433]
P2/P3 guide supports
[KG-684G]
Chassis-Top View
P2/P3 guide tape
run portions
[KG-684G]
Cam gear shaft
[KG-684G]
Drive gear shaft
[KG-684G]
Side of Slider plate guide
[KG-684G]
Groove of D37 clutch shaft
[KG-684G]
Side of slider plate guide
[KG-684G]
Chassis-Bottom View
Inside of guide rail and
shaded portion
[KG-684G]
Chassis-L
Chassis-R
Fig. 5-4-3 Chassis
5 - 10
Adjustment / Maintenance > Maintenance
Sector Gear
Cam Gear
P2 Gear Ass'y
Cam portion
[PL-433]
Gear portion
[PL-433]
Cam portion
[PL-433]
Wall surfaces of cam
[KG-684G]
Loading Base
Drive Gear
Wall surfaces of
boss [PL-433]
Wall surfaces of gear and
shaded portion [PL-433]
Tension Base
F/R Lever
Clutch contact
portion [PL-433]
Tension arm shaft support
[PL-433]
Cam portion
[KG-684G]
Cam portion
[KG-684G]
FL Rack Gear
Sector gear moving portion
[KG-684G]
Tension lever moving portion
[KG-684G]
Brake lever moving portions
[KG-684G]
Side of guide
[KG-684G]
F/R lever moving portion
[KG-684G]
Side of guide
[KG-684G]
Spring lever moving portion
[KG-684G]
Slider Plate
Fig. 5-4-4 Mechanical Components
5 - 11
6
Exploded View and Parts List
6-1 Exploded Views
Note: Components without any numbers in exploded views were not
assigned as service parts as of the date of issue of this manual.
6-1-1 Cabinet Section
469
255
463
463
469
250
463
SMPS P.C.B
[Component replacement]
463
280
286
469
463
283
469
463
256
257
463
284
457
470
A43
457
464
457
457
470
A26
DVD Multi Drive
[Unit replacement]
A26A
457
459
470
290
464
459
A00
291
TIMER P.C.B
[Component replacement]
276
459
JACK P.C.B
[Component
replacement]
469
459
469
A52
VDR P.C.B
469
[Circuit Board assembly
replacement]
469
469
274
KEY P.C.B
[Component
replacement]
469
469
469
469
469
323
321
457
263
266
469
264
468
300
465
465
265
465
452
261
261
452
452
6-1
261
452
VCR P.C.B
[Component replacement]
6-1-2 F / L Mechanism Section
100
A21
103
106
105
107
102
110
112
A23
114
113
A24
116
115
A22
109
054A
054
6-2
6-1-3 Deck Mechanism Section - Top view
026
008
A01
015
004
014
013
003
409
009
029
016
022
011
012
031
017
405
028
079
031
024
406
6-3
021
6-1-4 Deck Mechanism Section - Bottom view
051
A11
A12
052
068
069
067
066
517
070
064
065
061
056
023
518
052A
058
055
077
078
060
076
410
6-4
THE UPDATED PARTS LIST
FOR THIS MODEL IS
AVAILABLE ON ESTA
1F
1
2F
2
3
3F
4
4F
5
5F
6
6F
7F
7
8F
8
S Schematic,Wiring
n Diagrams
S-1 Wiring Diagram
m
F
F
For schematic diagram
m
- Resistors are in ohms,, 1/8W unless otherwise noted.
Special note :
2E
3E
Most semiconductor devices
v
are electrostatically sensitive and therefore require the
special handling techniques
q
described under the "Electrostatic
t
Protection
Measures" section of this
i service manual.
4E
Note :
Do not use the part number
m
shown on this drawing for ordering.
e
The correct part
number is shown in the p
parts list (may be slightly different o
or amended since this
drawing was prepared).
7E
8E
E
DVD-MULTI
V
DRIVE
1
2
P104
8.7V
GND
CN621
CN620
4D
5D
P104
6D
R493
1
2
Important safety notices
e :
Components identified w
with the mark
have the special ccharacteristics for safety.
When replacing
Wh
l i any off th
these
ese components.
t
3D
Use only the same type. 2D
CABL40
0
1D
6E
CABL04
4
FAN
P103
E
5E
P103
1E
7D
8D
D JACK P.C.B
CON401
CABL15
1C
DECK
C
MECHANISM
C3C
CHA
2C
PN302
S.M.P.S
P.C.B
4C
5C
C
6C
VDR P.C.B
PCB
7C
A3
A3
V3
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
D
PN7605
D
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
8C
C
CONNECTOR
T
C
PN303
PN30
6B
7B
PMD02
D0
PMP01
CABL15
13.5VA(DRUM)
P3D01
PN304
304
5B
B
8B
B
1
1
IEC958
2
2
GND
3
3
INTR/PROG
4
4
5
5
GND
G
6
6
RADIO 'H'
7
7
AMP 'ON'
8
8
VDR RESET
9
9
Vo1.DATA
10
10
Vo1.CLK
11
MIC_DET 'L' 11
12
12
VDR CLK
13 DATA(VCR VDR) 13
14 DATA(VDR VCR) 14
15
15
VDR ENA
P3D03
P101
DVD-A.MUTE-R
P3D02
PMC01
4B
B
CVBS
P3D01
CABL30
3B
-27VA
DRUM
MOTOR
P3D03
SP PB A
SP REC
SP PB B
EP PB B
EP REC
EP PB A
HIFI PB A
HIFI REC
HIFI PB B
FE
HEAD
P3D02
F.GND
FULL ERASE
2B
A/C
HEAD
PMC01
CFG
CAP.VCC
SERVO VCC
CAP.REV'H'
I.LIMIT
MOTOR GND
S.GND
DRUM VCC(13.5VA)
CAP.CTL
L/M CTL
DPG/DFG
DRUM CTL
1B
CAPSTAN
MOTOR
KEY P.C.B
DVD-A.MUTE-L
P102
PN301
C
PMD01
P6603
P6602
B
B
PM601
P6M01
FLD CLK
FLD ENA
FLD DATA
TIMER P.C.B
2A
3A
4A
6A
7A
8A
A
PM602
P6M03
1A
VCR
VC
CR5A
P
P.C.B
CB
A
A
1
2
3
4
5
S-1
6
7
8
1F
1
2
2F
3
3F
4F
4
5F
5
6F
6
7F
7
8F
8
S-2 S.M.P.S Schematic
m
Diagram
F
F
T/W : JUMPER
12
12
1E
2E
2E
3E
3E
4E
5E
6E
7E
8E
To
Hi-Fi
(VCR)
PMP01
E
FSDL0365RN
E
2D
3D
4D
5D
6D
6
D
7D
D
8
8D
22B
1D
D
D
To
FAN
MOTOR
ZD104
7.5B
1C
C
2C
3C
4C
C
5C
6C
7C
8C
R157
10k
2B
3B
4B
5B
6B
7B
B
To
VDR
PN301
8
8B
FSDL0365RN
1B
B
C
56k(2W)
56k(2W)
C
B
B
22B
R169
2A
2
A
3A
4A
A
5A
5
A
6A
7A
To
DVD-MULTI
DRIVE
8A
A
ZD105
7.5B
1000 F
1000pF
1A
A
A
1
2
3
4
5
S-2
6
7
8
1
1F
2F
2
3
3F
4F
4
5F
5
6F
6
7F
7
8F
8
S-3 SYSTEM Schematic
m
Diagram (VCR
R P.C.B)
F
F
1E
2E
3E
IC503
0
CAT24WC16P
W
EEPROM
RO
TEST
TERMINAL
4E
5E
E
6E
E
7E
8E
To
TIMER
P6M01
To
A/V
E
E
1D
To
TIMER
P6M03
To
CAPSTAN
MOTOR
2D
2D
3D
4D
D
5D
6D
7D
8D
To
REAR
JACK
To
REAR
JACK
To
REAR
JACK
SYSTEM
M µP
D
1C
2C
3C
4C
4C
5C
5C
6
6C
7C
8C
C
To
VDR
PN303
C
1B
2B
2B
3B
SUP_REEL
SUP
RE
4B
4B
5B
6B
D
7B
C
8B
To
Hi-Fi
B
To
Hi-Fi
S-UP
B
To
REAR
JACK
To
REAR
JACK
1A
2A
3A
4A
4A
5A
6A
6A
7A
8A
A
A
To
A/V
V
1
2
3
To
Hi-Fi
To
TUNER
4
5
S-3
6
7
8
1
1F
2F
2
3F
3
4
4F
5F
5
6F
6
7F
7
8F
8
S-4 TUNER Schematic
a Diagram (VCR P.C.B)
P
F
F
1E
E
2E
3E
4E
5E
6E
6
E
7E
E
8E
E
VPS
To
Hi-Fi
1D
2D
3D
4D
D
5D
6
6D
7D
8D
To
Hi-Fi
D
D
To
Hi-Fi
To
REAR
JACK
1C
2C
3C
4C
C
5C
C
6C
6C
7C
8C
C
C
1B
2B
3B
B
4B
NICAM/A2
5B
B
6
6B
7B
8B
To
Hi-Fi
B
B
To
SYSTEM
1A
2A
3A
4A
A
5A
6A
7A
7
A
8A
A
A
1
2
3
4
5
S-4
6
7
8
1
1F
2F
2
3
3F
4F
4
5F
5
6F
6
7F
7
8F
8
S-5 A/V Schematic Diagram (VCR P.C.B)
.
F
F
To
Hi-Fi
1E
REG12V
2E
3E
3
E
4E
5E
6E
7E
8E
To
SYSTEM
E
E
To
REAR
JACK
To
REAR
JACK
1D
4.43MHz
2D
3D
D
To
Hi-Fi
4D
D
5D
5D
6D
7
7D
8D
8
D
VIDEO
PROCESS
D
D
To
DRUM
MOTOR
1CTo
2C
3C
3C
Hi-Fi
4C
4
C
EP
5C
5
C
6C
7C
7
C
8C
EP
EP
6.8M
EP
EP
To
SYSTEM
C
C
To
A/C HEAD
1B
2B
2B
3B
4B
B
5B
5
B
6B
7B
8B
To
FE HEAD
B
B
1A
2A
3A
3
A
4
4A
5
5A
6A
7A
8A
A
A
1
2
3
4
5
S-5
6
7
8
1F
1
2F
2
3
3F
4
4F
5
5F
6
6F
7F
7
8F
8
S-6 Hi-Fi Schematic
c Diagram (VCR P.C.B)
C
REG12V
To
A/V
F
F
5.0V
To
SYSTEM
Hi-Fi AUDIO
PROCESS
1E
To
A/V
REG12V 112
5.0V
106
2E
3E
REG12V
R
4E
5E
6E
7E
8E
5.0V
To
TUNER
E
E
To
REAR
JACK
1D
2D
To
REAR
JACK
3D
4D
5D
5D
6D
7D
7
D
8D
To
REAR
JACK
D
D
To
REAR
JACK
1C
To
REAR
JACK
To
TUNER
5.3VA 101
5.0V 106
5 3VA
5.3VA
5.0V
5.3VA 101
5.0V 106
5
5.3VA
5.0V
2C
3C
4
4C
5C
6
6C
7
7C
8C
C
To
REAR
JACK
To
REAR
JACK
To
A/V
1B
2B
3B
4B
5B
6B
7B
C
To
REAR
JACK
8B
5.3VA
5
A/V SELECT
5.0V
5
REG12V
RE
To
S.M.P.S
P101
B
B
3A
5.3VA
2
2A
4A
5A
6A
7A
8A
A
REG12V
REG12V 112
REG12V
1A
REG12V
DVD PWR CTL
A
To
SYSTEM
1
2
To
TUNER
112 REG12V
To
TUNER
A
To
SYSTEM
To
REAR
JACK
To
REAR
JACK
3
4
5
S-6
6
7
8
1
1F
2F
2
3F
3
4
4F
5F
5
6
6F
7
7F
8F
8
S-7 REAR JACK Schematic
c
Diagram (VCR
V
P.C.B)
F
F
VIDEO OUT
AUDIO OUT
T
To
SYSTEM
S
JK903
S-VIDEO
OUT
1E
2E
2
E
3
3E
4
4E
5E
6E
To
Hi-Fi
7E
8E
E
To
SYSTEM
E
E
To
Hi-Fi
To
A/V
1D To
2D
D
3
3D
4D
5D
5D
SYSTEM
To
TUNER
To
A/V
6
6D
7D
D
8D
SW901
RGB
D
D
COMPONENT
C
1C To
2C
C
3C
3C
4C
5C
6C
7C
7
C
8C
C
VDR
PN304
C
C
VIDEO AMP
1B
B
2B
3B
4B
5B
6B
7B
8B
8
B
To
Hi-Fi
B
To
Hi-Fi
To
Hi-Fi
To
Hi-Fi
5.3VA
1A To
SYSTEM
2A
A
3A
4A
5A
6A
7A
7A
8A
A
1
2
3
To
Hi-Fi
To
Hi-Fi
To
o
Hi-Fi
-
4
5
S-7
6
To
Hi-Fi
A
To
SYSTEM
7
8
1F
1
2F
2
3
3F
4F
4
5F
5
6
6F
7F
7
8F
8
S-8 TIMER Schematic
a Diagram,KEY Schematic
c
Diagram
F
F
1E
2E
3
3E
4E
E
5E
6E
6E
7
7E
8E
E
E
REW
KEY
1D
2D
3D
4D
5D
D
F.F
DUBBING
6D
7D
8D
D
D
1C
2C
3C
4C
C
5C
6C
6C
7C
8C
C
(GREEN)
(RED)
VCR
C
DVD
3B
(RED)
2B
DVD
VD
1B
VCR
(GREEN)
C
4B
B
5B
6B
B
7B
B
8B
To
VCR(SYSTEM)
PM602
B
B
TIMER
1A
2A
3A
4A
5A
6A
7A
To
VCR(SYSTEM)
PM601
8A
A
A
1
2
3
4
5
S-8
6
7
8
1F
1
2F
2
3F
3
4F
4
5F
5
6F
6
7F
7
8F
8
S-9 JACK Schematic
t Diagram
F
F
1E
2E
3E
4E
5E
6E
7E
8E
E
E
DV IN
1D
2D
D
3D
4D
5D
6D
D
7D
8D
To
VDR
PN302
S-VIDEO
IN
D
1C
2C
3C
4C
5C
6C
D
7C
8C
C
C
VIDEO
IN
1B
2B
3B
4B
5B
6B
7B
8B
AUDIO
L IN
AV3
3
B
B
AUDIO
R IN
1A
2A
3A
4A
5A
6A
7A
8A
A
A
1
2
3
4
5
S-9
6
7
8
1
2
3
4
5
6
7
8
S-10 A/V,SYSTEM Circuit Waveforms
IC301 (A/V)
IC501 (SYSTEM)
F
F
IC301 Pins 8, 9
PB mode
500mvp-p
IC301 Pins 15, 17,
19,21
Video in 1Vp-p
IC301 Pin 31
PB/REC mode
4.0Vp-p
V.HSW
(IC501 Pin 23)
1V/10mS
REC/PB MODE
IC301 Pin 98
REC mode
1.1Vp-p
DV.SYNC
(IC501 PIN 24)
1V/100uS
QUE/REV MODE
CTL(+)
(IC501 Pin 74)
1V/10mS
CTL(-)
(IC501 Pin 75)
1V/10m S
E
E
IC301 Pin 94
REC mode
2.0Vp-p
IC301 Pin 29
PB mode
2.02Vp-p
IC301 Pin 57
PB mode
400mVp-p
IC301 Pin 63
PB mode
400mVp-p
DFG/DFG
(IC501 PIN 65)
1V/10mS
REC/PB MODE
D
IC301 Pin 73
PB/REC mode
5Vp-p
IC301 Pin 74
PB/REC mode
5Vp-p
IC301 Pin 77
REC mode
340mVp-p
CFG
(IC501 Pin 67)
1V/10mS
D
IC301 Pin 42
PB mode
300mVp-p
14
C
C
IC301 Pin 53
PB mode
400mVp-p
IC301 Pin 80
PB mode
3.6Vp-p
B
B
A
A
1
2
3
4
5
S - 10
6
7
8
1
2
3
4
5
6
7
8
S-11 CIRCUIT VOLTAGE CHART
F
MODE
PIN NO.
EE
PLAY
IC301
E
D
C
B
MODE
PIN NO.
EE
PLAY
MODE
PIN NO.
EE
PLAY
MODE
PIN NO.
EE
PLAY
MODE
PIN NO.
EE
PLAY
MODE
PIN NO.
EE
PLAY
MODE
PIN NO.
F
EE
PLAY
E-MODE
NO.
E
C
B
55
1.3
1.48
9
4.98
5.30
64
0
0
18
0
0
7
3.28
3.74
17
0
0
Q501
0
0
0.7
1
20m
100m
56
0
0
10
4.80
4.80
65
2.36
2.36
19
4.88
4.88
8
3.28
3.24
18
2.28
2.74
Q503
5.19
5.19
4.57
2
20m
100m
57
2.08
2.18
11
4.82
4.82
66
0
0
20
0
0
9
3.28
3.24
19
0
0
Q504
Y/C_VIDEO
0
Y/C_VIDEO
3
20m
100m
58
1.78
2.14
12
4.72
4.82
67
4.68
9.68
21
0
0
10
3.28
3.24
20
2.56
2.58
Q505
Y/C_VIDEO
0
Y/C_VIDEO
4
1.95
4.88
59
4.6
4.62
13
4.92
4.92
68
0
0
22
0
0
11
3.28
3.26
21
2.64
2.68
Q506
0
2Fsc
2Fsc
5
1.94
1.88
60
4.62
4.62
14
5.02
5.02
69
2.48
2.48
23
0
0
12
0
0
22
0
0
Q514
0
0
4.87
6
2.64
3.12
61
3.82
0
15
0
0
70
2.48
2.48
24
0
0
13
3.78
4.52
23
2.56
2.92
Q515
0
0
4.87
7
2.8
2.74
62
2.2
2.08
16
4.98
4.98
71
0
0
25
0
0
14
0
0
24
0
0
Q301
0
5.04
0
8
2.5
1.7
63
2.32
2.32
17
5.04
5.04
72
2.48
4.98
26
0
0
15
0
640m
25
0
0
Q302
5.04
0
5.04
9
2.04
1.3
64
1.62
1.64
18
4.98
9.98
73
4.92
4.92
27
0
0
16
5.82
6.64
26
2.52
2.98
Q303
0
0
0
10
1.80
1.88
65
1.62
2.28
19
2.46
2.46
74
0
0
28
0
0
17
5.28
6.68
27
20m
0
Q305
4.93
4.81
4.79
11
2.0
1.8
66
2.30
1.68
20
3.36
3.36
75
2.52
2.42
29
0
0
18
0
620m
28
4.72
4.68
12
1.6
0.72
67
0
0
21
0
76
2.42
2.48
30
2.96
3.98
19
6.28
6.66
0
IC201
Q307
5.04
5.04
0
Q310
Y/C_VIDEO
0
Y/C_VIDEO
13
0
0
68
1.12
1.14
22
0
0
77
80m
80m
31
2.96
3.98
20
6.28
6.72
1
2.51
2.51
Q7S1
0
1.47
0
14
1.26
1.3
69
2.3
2.38
23
4.96
4.96
78
0
0
32
0
0
21
4.46
4.42
2
2.39
2.39
Q7S2
0
0
5.13
15
3.40
3.36
70
0.82
0.82
24
120m
140m
79
4.02
4.96
33
4.88
4.88
22
3.28
4.02
3
3.54
3.53
Q901
5.1
0
4.5
16
0
4.78
71
2.2
2.18
25
4.94
4.94
80
4.96
4.96
34
3.64
3.58
23
3.62
3.68
4
2.57
2.56
Q902
0
0
0
17
2.38
2.32
72
100m
2.42
26
4.92
4.92
81
2.8
280m
35
0
0
24
3.74
4.12
5
1.52
1.34
Q903
0
0
0
18
1.88
2.84
73
4.96
4.98
27
20m
20m
82
1.0
2.62
36
2.62
2.58
25
3.74
3.76
6
0.43
3.68
Q904
0
4.5
0
19
3.02
2.94
74
4.96
4.98
28
5.02
5.02
83
120m
3.24
37
0
0
26
0.1
640m
7
0
0
Q905
2.69
0
2
20
0
0
75
2.56
2.54
29
4.98
4.98
84
0
1.96
38
0
0
27
0
0
8
0
0
21
2.38
2.34
76
2.34
2.18
30
4.84
4.84
85
0
0
39
0
0
28
3.7
3.68
9
3.04
3.03
22
4.88
4.82
77
2.68
2.64
31
5.00
5.00
86
4.98
4.9
40
2.54
2.54
29
3.66
3.64
10
2.52
2.52
23
2.64
2.24
78
0
4.72
32
0
0
87
4.98
4.98
41
2.54
2.56
30
0.7
680m
11
2
2.05
24
0
0
79
0
0
33
4.98
4.94
88
5.0
5.0
42
2.48
2.48
31
3.72
3.72
12
3.22
1.97
25
2.08
2.14
80
2.16
2.68
34
0
5.00
89
0
0
43
2.30
2.34
32
3.74
4.08
13
3.99
3.99
26
3.08
2.66
81
4.06
20m
35
5.02
100m
90
4.88
4.88
44
0
0
33
3.62
3.68
14
2.5
2.49
IC7V1
27
0
0
82
0
0
36
3.16
3.12
91
0
0
28
150m
140m
83
120m
2.72
37
5.70
-
92
0
0
1
0
29
3.88
3.18
84
2.76
4.74
38
0
5.70
93
5.04
5.04
2
30
2.08
2.74
85
2.114
2.42
39
520m
0
94
4.88
0
3
31
4.74
4.72
86
2.04
2.08
40
4.84
520m
95
4.98
4.98
4
32
2.08
2.12
87
2.04
2.08
41
4.83
-
96
0
0
5
33
2.42
2.26
88
0
0
42
4.86
4.86
97
0
0
34
1.58
1.54
89
2.14
2.08
43
0
0
98
4.98
35
3.30
3.36
90
2.14
2.08
44
5.02
5.0
99
36
2.50
2.32
91
2.14
2.08
45
0
0
100
37
3.10
3.18
92
4.88
4.89
46
3.94
3.94
38
2.60
2.28
93
300m
260m
47
2.88
2.88
1
4.88
4.88
11
0
0
39
1.40
1.42
94
2.48
2.40
48
0
0
2
1.46
1.48
12
DA/CL(2.82)
DA/CL(2.82)
1
4.76
4.68
40
2.30
2.16
95
2.48
1.86
49
0.98
2.94
3
1.38
1.38
13
0
0
2
2.02
41
1.08
1.58
96
2.06
1.86
50
1.84
1.94
4
0
0
14
DA/CL(2.82)
DA/CL(62m)
3
42
1.82
1.84
97
0
0
51
0.98
4.78
5
2.26
2.24
15
2.89
1.41
4
43
2.04
2.28
98
2.30
2.46
52
3.28
3.28
6
2.38
0
16
1.53
950M
20m
53
2.38
2.38
7
0
0
17
DA/CL(1.14)
2.42
54
2.52
2.54
8
0
0
18
0
55
1.88
1.88
9
0
0
19
20
34
13.4
13.32
15
3.11
1.93
0
35
580m
520m
16
3.2
3.18
0
0
36
0
520m
17
27.4m
4.11
0
142m
37
580m
520m
18
112.1m
3.35
DA/CL(5.34)
DA/CL(5.34)
38
0
0
19
2.27
2.26
DA/CL(5.34)
DA/CL(5.34)
39
0
20m
20
1.99
2.12
6
0
0
40
4.7
4.76
21
2.31
2.37
4.98
7
DA/CL(5.34)
DA/CL(5.34)
41
0
1.68
22
0.78
0.81
20m
4.98
8
0
0
42
5.0
5.04m
23
5.02
5.01
0
0
9
DA/CL(5.34)
DA/CL(5.34)
43
5.0
4.96
24
5.02
5.0
10
DA/CL(5.34)
DA/CL(5.34)
44
20m
3.38
25
2.44
2.27
26
2.44
2.26
27
2.82
2.85
2.24
28
181.5m
187.4m
4.88
4.88
29
371.6m
212.2m
1.64
1.78
30
2.08
2.08
5
4.72
4.78
DA/CL(810m)
6
1.88
1.88
0
7
0
0
5.26
5.24
8
2.26
2.18
5.26
5.24
IC751
44
0
0
99
45
2.88
3.04
100
46
2.0
2.98
47
4.82
4.78
1
0
0
56
0
0
10
0
0
48
120m
2.40
2
4.52
4.82
57
0
0
11
0
5.0
0
2.48
IC501
IC901
IC801
9
0
0
10
1.64
1.72
49
3.48
1.94
3
4.84
4.84
58
120m
120m
12
5.0
5.0
1
3.28
3.24
11
0
0
50
4.78
4.74
4
4.64
4.58
59
4.92
4.92
13
5.0
0
2
3.28
3.28
12
1.92
2.08
51
2.08
1.98
5
4.56
4.56
60
4.92
4.92
14
0
0
3
3.28
3.26
13
4.86
4.82
52
4.8
4.70
6
80m
60m
61
0
0
15
0
0
4
3.28
3.92
14
1.92
2.08
53
2.60
2.8
7
0
0
62
4.82
4.82
16
0
0
5
3.28
3.92
15
0
2.31
54
0
0
8
4.98
4.98
63
3.98
3.98
17
0
0
6
3.28
3.26
16
2.26
2.64
E
D
C
B
A
A
1
2
3
4
5
S - 11
6
7
8
C Circuit Board Diagrams
LOCATION GUIDE
C-1 VCR Circuit Board Diagram
COMPONENT SIDE
C-1
CONDUCTOR SIDE
LOCATION GUIDE
C-2
C-2 S.M.P.S Circuit Board Diagram
CONDUCTOR SIDE
LOCATION GUIDE
C-3
C-3 JACK Circuit Board Diagram, C-4 TIMER Circuit Board Diagram, C-5 KEY Circuit Board Diagram
C-3 JACK Circuit Board Diagram
Board Location
JACK
KEY
TIMER
C-4 TIMER Circuit Board Diagram
COMPONENT SIDE
CONDUCTOR SIDE
C-4
C-5 KEY Circuit Board Diagram
1
2
3
4
B Block Diagrams
7
F
15
TH01
RECTIFIER &
SMOOTING BLOCK
(D128,C133,R130)
14
1
+
10
SNUBBER
BLOCK
(D101,C105
C106,R103)
RECTIFIER &
SMOOTING BLOCK
(D129,C128,R147)
(D129,C128,R147)
3
E
6,7,8
5
!
1
NOISE FILTER
BLOCK
(C101,L102,
C102)
DRIVE & S/W BLOCK
(IC101, D102, R105,
C108,C112,C120,
ZD101)
6
!
!
FUSE
(F101)
ERROR AMP
(IC103)
!
13.5VA(DRUM)
PWR CTL 'H'
HSR 'H'
DVD PWR CTL
FEED-BACK
BLOCK
(R121,R122,
C121,R123,
R124,R125,
R126)
FD(+)
5.0V S/W Block
(Q124,R140,R135,R136
D134,C134)
-27VA
C
To FAN
(P104)
PWR CTL Block
(Q125,R137,R138)
8.7V
6,7,8
5
1
B
1
12
RECTIFIER &
SMOOTING BLOCK
(D125,C139,L127,C140)
10
RECTIFIER &
SMOOTING BLOCK
(D124,C129)
BR BL
(BK)(WH)
DRIVE & S/W BLOCK
(IC104, D104, R113,
C117,C114,C119,
ZD102)
4
2
3
!
C
PHOTO COUPLER
(IC105)
ERROR AMP
(IC106)
1.8V
5.0V REG & S/W Block
(IC151,R151,C151)
2.5V
3.3V
5.0V
1.8V REG & S/W Block
(IC160,R159,C152,
R167,R168)
RECTIFIER &
SMOOTING BLOCK
(D122,C123,L123,C125)
7
!
12V REG & S/W Block
(IC157,R156,C155)
RECTIFIER &
SMOOTING BLOCK
(D123,C126)
9
5
Y-CAP
C111
To VDR
(P102)
12V
3
!
D
HSR CTL Block
(Q121,Q122,R141)
T102
SNUBBER
BLOCK
(D103,C115,C116,
R112,R115)
E
FD(-)
D
PHOTO COUPLER
(IC102)
REG 12V
33V S/W Block
(Q123,R143,R134)
RECTIFIER &
SMOOTING BLOCK
(D121,C122,L122,C124)
8
3
Cap Vcc
33V
2 5
9
D132
12V REG & S/W Block
(Q126,R150,ZD152,
C156,C153)
RECTIFIER &
SMOOTING BLOCK
(D130,C137,R146)
7
5.3VA
5.0V
HSR S/W Block
(Q120,ZD153,C135,
R144,R145,D155,C157)
RECTIFIER &
SMOOTING BLOCK
(D126,C136,L124,C130)
11
To VCR
(P101)
RECTIFIER &
SMOOTING BLOCK
(D127,C131,L125,C132)
13
Y-CAP
C110
8
T101
F
C103
6
!
B-1 S.M.P.S Circuit Block Diagram
BD101
5
B
To DVD DRIVE
(P103)
3.3V REG & S/W Block
(IC154,R154,C154)
FEED-BACK
BLOCK
(R131,R132,
C141,R133,
R161,R162)
12V
5.0V
2.5V REG & S/W Block
(IC152,D153,C150)
A
A
1
2
3
4
5
B-1
6
7
8
F
E
D
C
B
A
1.1MHz
BPF
PB
BELL
2.2MHz
BPF
X2
2.2MHz
TRAP
X2
4.3MHz
BPF
SYNC
GATE
LIM
4.3MHz
BPF
4.3MHz
A-BELL
PB
MUTE
18
VM
AGC
DET
4.286MHz
System
DATA
4.43MHz
CLOCK
System
1.107MHz
69
74
73
To System V.ENV
57
65
45
42
46
2fsc
80
X-tal
VCO/OSC
83
Serial Cont
interface
C-CCD
55
CLOCK Drive
53
2
2
71
78
From
System V.H/SW
1
1
AGC
AMP
14
B-2 VIDEO Circuit Block Diagram
1) PB MODE
IC201
LA70100M
85
49
PB-AMP
SP CH2
SP CH2
86
Y-CCD
51
EXT
PB-AMP
SP CH1
SP CH1
87
SP
C LPF
DEALY
L- DET
EP
89
90
BD
TRAP
FM AGC
P.EQ
G.EQ
D LIM
DEMO
S LPF
MAIN
DE-EMPH
91
SQUELCH
28
V. OUT
D-V SYNC
From
System
CLEAR
SYNC
NL
Y LPF DE-EMPH CLAMP
31
SYNC SEP
PB-AMP
EP CH1
EP CH1
29
C.K
Main
Conv1
PB-AMP
EP CH2
EP CH2
BPF
MIX
AMP
INT
3
3
CTL Trap
HIFI Trap
ACC
2M LPF
APC/ACC
DET
Main
Conv2
CCD LPF
VCA
YNR
FBC
Video ALC
Sharpness
CONTROL
NC
CLAMP
IC301
HA118725
LPF
9
33
35
37
38
40
36
+
8
4
+
4
5
1/4
DIVIDER
LIM
SYNC
GATE
1.1MHz
BPF
4.286MHz
1.1MHz
A-BELL
REC
MUTE
12
46
57
45
65
77
DATA
CLOCK
1.107MHz
System
4.3MHz
A-BELL
System
4.3MHz
BPF
16
73
4.43MHz
74
71
69
C-CCD
53
CLOCK Drive
80
IC301
HA118725
Serial Cont
interface
VCD
(-4dB)
APC/ACC
DET
49
Y-CCD
51
ACC
V. OUT
D-V SYNC
From
System
SQUELCH
28
C-LPF
Main
Conv1
C-LPF
f0=1.68M
MIX
ATT
CCD
LPF
REC
TRAP
D.E.
NL EMPH
From
System
85
REC-AMP
SP CH2
LPF
SP CH2
86
B.E
C.K
REC-AMP
SP CH1
SP CH1
87
HPF
CLEAR
SYNC
V.H/SW
L-DET
SPF
6dB
AMP
29
Main
Conv2
X-tal
VCO/OSC
6
6
2fsc
55
5
2) REC MODE
B-2
IC201
LA70100M
FBC
ALC
MAIN
EMPH
FM
MOD
LPF
HPF
TRAP
VCA
89
REC-AMP
EP CH2
7
7
f/0DEV
Adjst
FBC
Video ALC
EP CH2
90
Y-LPF
VIDEO
AGC
REC-AMP
EP CH1
YNR
EP CH1
91
SYNC
SEP
17
+
19
+
36
40
CLAMP
38
37
CLAMP
33
35
9
8
11
+
DVD CVBS
15
LPF
ATT
-10dB
8
8
MIXED.Y/C
+
ATT
-10dB
AV3 VIDEO
21
ATT
-6dB
S/W
VIDEO IN
ATT
-10dB
+
+
F
E
D
C
B
A
1
2
3
4
5
6
7
8
B-3 AUDIO Circuit Block Diagram
3) Hi-Fi AUDIO PB MODE
IC301
96
95
E
21
AV2-L
8 E2-L
25
EXT-L
AV2 A. OUT (L)
PRE
AMP
14 E2-R
IC801
SC901
R/P HEAD
VCA
6
19
22
AV2
AV2 A. OUT (R)
OUTPUT
SELECTOR
EQ
SP ON
AUDIO
LIMIT
L
16
To
PMD02
VCR A (R)
MIX
2 AUDIO
1
FM
LIM
Hi-Fi
PB-B
H
17
Rch
BPF
37
AUDIO
LIMIT
PMD02
L
57
R
53
Q903
PMD02
19
L
23
21
AUDIO
PROCESS R
25
A.MUTE
Q902
Q911
A.MUTE
BGA
308P
74
JK901
COAXIAL
Q912
JK902
OPTICAL
1
DATA
D
From SYSTEM
CLOCK
E
JK901
AUDIO
OUT
L
R
19 20
73
SC901
AV1
3
6 12
Lch
BPF
35
VCR A (L)
94
TU701
A.MUTE
22
20
Q702/Q703
TDA9605
Hi-Fi
PB-A
24
F
AV2-R
IC801
TDA9605
HA118725
N.A.IN
IC802
MM1443
EXT-R
1) LINEAR AUDIO PB MODE
OUTPUT SELECTOR
F
VDR
VCR
PMD01
D
SC901
24
AV2
22
2) LINEAR AUDIO REC MODE
4) Hi-Fi AUDIO REC MODE
IC801
C
IC301
HA118725
S-IF 16
OUT
AUDIO 15
OUT
MONO
AUDIO
21 OUT
2
R
S-IF 16
OUT
2 ANA
IN
AUDIO 15
OUT
43
L 30
2
MONO
R 31
IN
3
AV1
22
MIX
6
R/P HEAD
REC
AMP
DVD 'L'
4
AV3 'R'
10
AV3 'L'
11
AV2 'R'
9
AV2 'L'
8
AV1 'R'
7
AV1 'L'
6
2
MONO
R 31
IN
3
L
R
2
7
6
L
23
8
27
9
L
R
OUTPUT
SELECT
19
24
20
FRONT
AV3 (L)
AV2
AV2 A. OUT (R)
22
VCR A (R)
VCO
REC
LPF
MIX
PNR
AUDIO
LIMIT
36
B
Hi-Fi
REC-B
VCO
REC
LPF
4
15
FRONT
AV3 (R)
VCR A (L)
16
AUDIO
LIMIT
Hi-Fi
REC-A
R
DVD
AUDIO(L)
AV2 A. OUT (L)
PNR
6
SC901
INPUT SW
5
L
98
AV2
DVD 'R'
43
L 30
C
SC901
DET
VCA
2 ANA
IN
TDA9605
INPUT SW
IC801
TDA9605
IC751
NICAM/A2
TU701
TUNER
B
IC751
NICAM/A2
TU701
TUNER
To
PMD02
10
DVD
AUDIO(R)
2
VDR
17
A
A
VCR
1
2
3
4
5
B-3
6
7
8
1
2
3
4
5
6
7
8
B-4 SYSTEM Circuit Block Diagram
F
To/From
DECK
MECHANISM
F
To/From VIDEO
87 MODE S3
E
D.V.Sync
V. ENV
82 23 24
V.H.SW
LD CTL
65 67 21 19
CFG
34 74 75
CAP. REV 'H'
88 MODE S2
33
DPG
I-Limit
89 MODE S1
CTL -
20
GND
MODE S1
MODE S2
MODE S3
MODE S4
CTL +
MS501
CAP. PWM
MODE S/W
DRUM PWM
5.3VA
REC 'H' 27
DIG601
E
DISPLAY
86 MODE S4
FLD DATA 16
FLD ENA 28
FLD CLK 14
10 VDR ENA
To/FROM VDR
12 DATA(VDR
VCR)
13 DATA(VCR
VDR)
IC601
TIMER
11 VDR CLK
A. ENV
A. H.SW
A. MUTE 'H'
REC 'H'
X501
14MHz
D
37 X in
38 X out
OSC
5V
T-UP END
X502
ES501
32.768KHz
R550
40 Xc in
OSC
R557
LD501
DECK IR LED
R505
To/From AUDIO(Hi-Fi)
27
AFT 81
6 TOP SENSOR
ES502
D
IIC CLK 18
IIC DATA 17
IC501
MN101D10X
41 Xc out
83
26
58
IIC CLK 18
IIC DATA 17
C534
To/From TUNER
R507
IC503
EEPROM
85 END SENSOR
C
R553
SUP END
RS501
C535
R564
Q514
IIC CLK 18
IIC DATA 17
R583
R556
3 T-UP Reel
C
SCL
SDA
T-UP REEL
R555
Q515
RS502
R584
POWER FAIL 4
2 SUP Reel
Vcc (A/D)
Vcc (OSD)
Vcc
(MAIN)
R558
R/C
SUP REEL
5
73
51
36
32 CST IN
B
IC504
GND
RESET 25
3 RESET 2
B
1
CST.SW/REC TAB
5.3VA
R554
CS501
5.0V
C500
BACK UP
RC601
R548
C552
+
IC505
Q503
+
C501
5.3VA
R542
Q501
(TIMER)
R529
+
C505
GND
3 RESET 2
1
R583
L504
A
A
1
2
3
4
5
B-4
6
7
8
19
31
3
1
Q905
PN7605
2
JK764
VIDEO
AV3
VIDEO
PMD02
1
SC901
JK761
9
Y
Y
MIXED Y/C
VCR VIDEO
S-VIDEO
8
C
B-5
C
DVD CVBS
IC802
MM1443
3
41 VIDEO
IN
40 VIDEO
OUT
7
Q8C1
5
5 EXT-V
VOUT2 30
20
JK765
11,12
TPA
14,15
TPB
VOUT3 29
49
DV
MIX
JK903
9
11
6
21
2
26
10
20
3
3
C (SUPER)
VIDEO
IN
19 VIDEO
OUT
23
Y (SUPER)
AV2
2
2
AV3
1
1
S/W VIDEO
VIDEO
OUT
B-5 VIDEO I/O Circuit Block Diagram
TU701
28
IC301
F
E
D
C
B
A
IC802
MM1443
Y
C
S-VIDEO
OUT
AV1
11
Y
13
G
7
Pb
Pr
15
12
18
14
16
B
15
17
R
JK901
VDR
VCR
SW901
Y (COMP)
RGB
Pb (COMP)
Pr (COMP)
4
4
FRONT JACK
IC901
MM1623FX
COMP
F
E
D
C
B
A
Hitachi, Ltd. Tokyo, Japan
International Sales Division
THE HITACHI ATAGO BUILDING,
No. 15 –12 Nishi Shinbashi, 2 – Chome,
Minato – Ku, Tokyo 105-8430, Japan.
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www.hitachidigitalmedia.com
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