SERVICE MANUAL
VIDEO CASSETTE RECORDER
10
2003
82992
HR-P201ER, HR-V205ER, HR-V206ER,
HR-V405ER, HR-V406ER
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).
SPECIFICATION (The specifications shown pertain specifically to the model HR-V205ER, HR-V206ER, HR-V405ER, HR-V406ER)
HR-P201ER,HR-V205ER,HR-V206ER,HR-V405ER,HR-V406ER V16P1,V16A1,V16C1
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
No.82992
2003/10
TABLE OF CONTENTS
1
2
3
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.1
SAFTY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
2.1
Manually removing the cassette tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
2.2
Removing the major parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2.3
Emergency display function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2.4
Service position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
2.5
Jig RCU mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
2.6
Mechanism service mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
2.7
Maintenance and inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
3.1
Before adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
3.2
Mechanism compatibility adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
3.3
Electrical adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
CHARTS AND DIAGRAMS
BOARD INTERCONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
MAIN (VIDEO/N.AUDIO) SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
MAIN (SYSCON) SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
MAIN (SW.REG) SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
MAIN (TUNER) SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
MAIN (FRONT) SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
MAIN (TERMINAL) SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
MAIN CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
COMPONENT PARTS LOCATION GUIDE <MAIN> LPB10205-001A. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
VOLTAGE CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
VIDEO / N.AUDIO BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
SYSTEM CONTROL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
CPU PIN FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
REMOTE CONTROLLER SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
FDP GRID ASSIGNMENT AND ANODE CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
PARTS LIST
1. EXPLODED VIEW
1.1 PACKING AND ACCESSORY ASSEMBLY <M1> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.2 FINAL ASSEMBLY <M2>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
1.3 MECHANISM ASSEMBLY <M4>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
2. PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
PACKING AND ACCESSORY ASSEMBLY <M1> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
FINAL ASSEMBLY <M2> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
MECHANISM ASSEMBLY <M4> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
MAIN BOARD ASSEMBLY <03>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
A/C HEAD BOARD ASSEMBLY <12>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
LOADING MOTOR BOARD ASSEMBLY <55> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
The following table indicates main different points between models HR-P201ER, HR-V205ER, HR-V206ER, HR-V405ER, and HRV406ER.
MODEL
ITEM
HR-P201ER
HR-V205ER
HR-V206ER
HR-V405ER
HR-V406ER
PURE SILVER
←
BLACK
PURE SILVER
BLACK
RCU COLOUR
DARK GRAY
LIGHT GRAY
←
←
←
RCU BATTERY
"R6" battery × 2
CR2032 × 1
←
←
←
2 HEADS
←
←
4 HEADS
←
INDEX SEARCH/MARK/ERASE
NOT USED
YES/ AUTO/ NO
←
←
←
SKIP SEARCH
NOT USED
USED
←
←
←
INSTANT REVIEW
NOT USED
USED
←
←
←
SQPB
NOT USED
←
←
USED
(PAL/NTSC-SP MODE)
←
PICTURE CONTROL
NOT USED
USED
(AUTO/EDIT/SOFT)
←
←
←
FRONT INPUT
NOT USED
USED
←
←
←
TUNER RELATED FUNCTION
NOT USED
USED
←
←
←
36CH ±4/G,[K]
28-60[36],GH[K]I
←
←
←
←
BODY COLOUR
VIDEO HEAD
RF OUT CH/RF OUT
SYSTEM[INITIAL]
TIMER RELATED FUNCTION
NOT USED
USED
←
←
DISPLAY PANEL
2-DOT LED
4-DIGIT LED GREEN
←
←
←
2-COLORS
(BLUE/WHITE)
3-COLORS
(BLUE/MAGENTA/WHITE)
←
←
←
OSD COLOR
ENGLISH
ENGLISH,[RUSSIAN]
←
←
←
COLOR BACK
NOT USED
USED(BLUE)
←
←
←
HEAD CLEANING WARNING
NOT USED
USED
←
←
←
OSD LANGUAGE [INITIAL]
NOTE:
Mark ← is same as left.
1-2 (No.82992)
SECTION 1
PRECAUTION
1.1 SAFTY PRECAUTIONS
Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the countries in which they are to be
sold.However,in order to maintain such compliance, it is equally
important to implement the following precautions when a set is
being serviced.
1.1.1 Precautions during Servicing
(1) Locations requiring special caution are denoted by labels
and inscriptions on the cabinet, chassis and certain parts of
the product.When performing service, be sure to read and
comply with these and other cautionary notices appearing in
the operation and service manuals.
(2) Parts identified by the symbol and shaded (
) parts
are critical for safety.
Replace only with specified part numbers.
NOTE :
Parts in this category also include those specified to
comply with X-ray emission standards for products
using cathode ray tubes and those specified for compliance with various regulations regarding spurious
radiation emission.
(3) Fuse replacement caution notice.
Caution for continued protection against fire hazard.
Replace only with same type and rated fuse(s) as specified.
(4) Use specified internal wiring. Note especially:
• Wires covered with PVC tubing
• Double insulated wires
• High voltage leads
(5) Use specified insulating materials for hazardous live parts.
Note especially:
• Insulation Tape
• PVC tubing
• Spacers
• Insulation sheets for transistors
• Barrier
(6) When replacing AC primary side components (transformers,
power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.
quently, when servicing these products, replace the cathode
ray tubes and other parts with only the specified parts. Under
no circumstances attempt to modify these circuits.Unauthorized modification can increase the high voltage value and
cause X-ray emission from the cathode ray tube.
(12) Crimp type wire connector
In such cases as when replacing the power transformer in
sets where the connections between the power cord and
power trans former primary lead wires are performed using
crimp type connectors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely according to the following steps.
• Connector part number :E03830-001
• Required tool : Connector crimping tool of the proper
type which will not damage insulated parts.
• Replacement procedure
a) Remove the old connector by cutting the wires at a
point close to the connector.
Important : Do not reuse a connector (discard it).
cut close to connector
Fig.1-1-3
b) Strip about 15 mm of the insulation from the ends of
the wires. If the wires are stranded, twist the strands
to avoid frayed conductors.
15 mm
Fig.1-1-4
c) Align the lengths of the wires to be connected. Insert
the wires fully into the connector.
Metal sleeve
Connector
Fig.1-1-1
(7) Observe that wires do not contact heat producing parts
(heatsinks, oxide metal film resistors, fusible resistors, etc.)
(8) Check that replaced wires do not contact sharp edged or
pointed parts.
(9) When a power cord has been replaced, check that 10-15 kg
of force in any direction will not loosen it.
Power cord
Fig.1-1-5
d) As shown in Fig.1-1-6, use the crimping tool to
crimp the metal sleeve at the center position. Be
sure to crimp fully to the complete closure of the
tool.
1.2
5
2.0
5.5
Fig.1-1-6
e) Check the four points noted in Fig.1-1-7.
Not easily pulled free
Fig.1-1-2
(10) Also check areas surrounding repaired locations.
(11) Products using cathode ray tubes (CRTs)In regard to such
products, the cathode ray tubes themselves, the high voltage circuits, and related circuits are specified for compliance
with recognized codes pertaining to X-ray emission. Conse-
Crimping tool
Crimped at approx. center
of metal sleeve
Conductors extended
Wire insulation recessed
more than 4 mm
Fig.1-1-7
(No.82992)1-3
1.1.2 Safety Check after Servicing
Examine the area surrounding the repaired location for damage
or deterioration. Observe that screws, parts and wires have been
returned to original positions, Afterwards, perform the following
tests and confirm the specified values in order to verify compliance with safety standards.
(1) Insulation resistance test
Confirm the specified insulation resistance or greater between power cord plug prongs and externally exposed
parts of the set (RF terminals, antenna terminals, video and
audio input and output terminals, microphone jacks, earphone jacks, etc.).
See table 1 below.
(2) Dielectric strength test
Confirm specified dielectric strength or greater between
power cord plug prongs and exposed accessible parts of
the set (RF terminals, antenna terminals, video and audio
input and output terminals, microphone jacks, earphone
jacks, etc.). See Fig.1-1-11 below.
(3) Clearance distance
When replacing primary circuit components, confirm specified clearance distance (d), (d') between soldered terminals, and between terminals and surrounding metallic
parts. See Fig.1-1-11 below.
(4) Leakage current test
Confirm specified or lower leakage current between earth
ground/power cord plug prongs and externally exposed accessible parts (RF terminals, antenna terminals, video and
audio input and output terminals, microphone jacks, earphone jacks, etc.).
Measuring Method : (Power ON)
Insert load Z between earth ground/power cord plug
prongs and externally exposed accessible parts. Use an
AC voltmeter to measure across both terminals of load Z.
See Fig.1-1-9 and following Fig.1-1-12.
a
Externally
exposed
accessible part
Z
A
b
c
V
Fig.1-1-9
(5) Grounding (Class 1 model only)
Confirm specified or lower grounding impedance between
earth pin in AC inlet and externally exposed accessible
parts (Video in, Video out, Audio in, Audio out or Fixing
screw etc.).
Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and
exposed accessible parts. See Fig.1-1-10 and grounding
specifications.
Fig.1-1-8
Fig.1-1-10
Fig.1-1-11
Fig.1-1-12
NOTE :
These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
1-4 (No.82992)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1
Manually removing the cassette tape
If you cannot remove the cassette tape which is loaded because
of any electrical or mechanical failures, manually remove it by
taking the following steps.
(1) Unplug the power cord plug from the power outlet.
(2) Refer to the disassembly procedure of the VCR and perform the disassembly of the major parts before removing
the mechanism assembly. (See Fig. 2-1a)
Fig.2-1a
(3) Unload the pole base assembly by manually turning the
gear of the loading motor until the pole base assembly is
hidden behind the cassette lid. In doing so, hold the tape by
the hand to keep the slack away from any grease. (See
Fig.2-1b )
In case of mechanical failures, while keeping the tension arm assembly free from tension, pull out the tape
on the pole base assembly. Take the spring(a) of the
pinch roller arm assembly off the hook, and detach it
from the tape.
(4) Remove the screw (a) of the side frame (L/R).
(5) Hold the slack tape and cassette cover together, lift the
cassette tape, top frame, cassette holder and side frames
(L, R) together from the rear and remove them by dis-engaging the hooks (a) and (b).
Screw(a)
Cassette tape
Cassette holder
Top frame
Side frame(R)
Screw(a)
Tension arm assembly
Pole base assembly Pinch roller arm assembly
Hook(a)
Side frame(L)
Hook(b)
Fig.2-1c
(6) Take up the slack of the tape into the cassette. This completes removal of the cassette tape.
Spring(a)
Direction of unloading
Fig.2-1b
(No.82992)1-5
2.2 Removing the major parts
2.2.1 How to read the procedure table
This table shows the steps for disassembly of the externally furnished parts and board assemblies. Reverse these steps when
re-assembling them.
Step/
Part Name
Loc No.
[1] Top cover
Bracket
(1)
(2)
Fig.
Point
Note
No.
1-3a 4(S1a),(S1b),3(L1a), <Note 1a>
2(SD1a),(P1a),(W1a),
CN1(WR1a),
---------------------------------------2(S1c)
(3)
(4)
(5)
(1) Order of steps in Procedure
When reassembling, perform the step(s) in the reverse order.
These numbers are also used as the identification (location) No. of parts Figures.
(2) Part name to be removed or installed.
(3) Fig. No. showing procedure or part location.
(4) Identification of part to be removed, unhooked, unlocked,
released, unplugged, unclamped or unsoldered.
P= Spring, W= Washer, S= Screw, L= Locking tab, SD=
Solder, CN**(WR**)= Remove the wire (WR**) from the
connector (CN**).
Note:
• The bracketed ( ) WR of the connector symbol are
assigned nos. in priority order and do not correspond to those on the spare parts list.
(5) Adjustment information for installation
2.2.2 Disassembly procedure
Step/
Part Name
Loc No.
[1] Top cover
[2]
[3]
Fig.
Point
No.
2-2-2d 2(S1a),(S1b)
<Note 3a>
• Be careful not to damage the connector and wire etc. during
connection and disconnection.
• When connecting the flat wire to the connector, be careful with
the flat wire direction.
<Note 3c>
• When reattaching the Mechanism assembly, be sure to align
the phase of the Rotary encoder on the Main board assembly.
• When reattaching the Mechanism assembly, set the “Mechanism assembling mode”. [See “MECHANISM ASSEMBLY
SERVICE MANUAL (No. 86700)”.]
• When reattaching the Mechanism assembly to the Main board
assembly, take care not to damage the sensors and switch on
the Main board assembly.
<Note 3d>
• When reattaching the Drum assembly, secure the screws (S3c
to S3e) in the order of c, d, e.
(S3d)
(S3c)
(S3e)
(S3e)
Mechanism
assembly
(S3d)
Drum
assembly
<Note 3c>
(S3c)
Fig.2-2-2b
• When handling the drum assembly alone, hold it by the motor
or shaft. Be careful not to touch other parts, especially the video heads. Also take care not to damage the connectors.
Note
Front panel assembly 2-2-2d 2(S2a), 4(L2a), 3(L2b) <Note 2a>
2-2-2a
<Note 3a>
Mechanism assembly 2-2-2d CN2001(WR3a),
2(S3a)
<Note 3c>
-------------------------<Note 3d>
(Drum assembly)
2-2-2b CN1(WR3b),
2-2-2c (S3c), (S3d), (S3e),
Shaft
Motor
Video heads
--------------------------
[4]
2(L3a)
(Head cleaner assembly)
Main board assembly 2-2-2d
<Note 2a>
• When reattaching the Front panel assembly, make sure that
the door opener of the Side frame (R) is lowered in position prior to the reinstallation.
• When reattaching the Front panel assembly, pay careful attention
to the switch lever of the Front panel assembly not to make it
touch the switch knob of the Main board assembly from the side.
• When reattaching the Front panel assembly, lift the Cassette
door slightly.
Door
opener
Side
frame(R)
Switch
knob
Fig.2-2-2a
1-6 (No.82992)
Switch
lever
HOOK
<NOTE>
Attach the Drum assembly appropriately,
since the installation state of the Drum assembly
influences the FM WAVEFORM LINEARITY
greatly.
Fig.2-2-2c
(S1b)
[1]Top cover
(S1a)
(S1a)
(S3a)
[4]Main board
assembly
[3]Drum assembly
[3]Head cleaner assembly
Insert the bushing of POWER CORD
so as not to twist the cord.
c
(S2a)
Q3
00
dc
3
e
1
D3
(L3a)
00
(S3a)
c
CN
30
JS
[3]Mechanism
assembly
01
Q3
00
50
01
2
JS3001
c
(S2a)
(S3e)
<Note3d>
d
<Phase alignment>
. Accord the position of V gap on R.ENCORDER and PWB silk
. Accord the position of Boss on R.ENCORDER and PWB silk
(S3d)
<Note3d>
(S3c)
<Note3d>
NOTE)CONFIRM THE DOOR OPENER IS DOWN.ATTACH THE
FRONT PANEL ASSEMBLY AFTER THE CASSETE DOOR IS LIFTED UP.
e
(L2a)
(L2a)
(L2b)
(L2b)
[2]Front panel assembly
(L2b)
(WR3b)
<Note3a>
NOTE
1. Insert direction of FCC WIRE as follows.
right side
back side
CN5001
CN2001
supporting side
electrode side
DRUM
2. FFC WIRE and DRUM FPC WIRE should be insert as follows.
NG
OK
90
(WR3a)
<Note3a>
CN
CN
CN
3. Insert direction of POWER CORD.
except US/UC/JPN
US/UC/JPN
WHITE LINE
BLUE
NEUTRAL
NEUTRAL
CN5001
CN5001
4. Insert the wire to even the root of connector completely
at the same time as inserting each wire.
Fig.2-2-2d
(No.82992)1-7
2.3 Emergency display function
This unit saves details of the last two emergencies as the EMG
history and allows the status of the VCR and the mechanism of
each emergency to be shown both on the display and as OSD information.
When using the emergency function, it is required to set the VCR
to the Jig RCU mode (Refer to 2.5 Jig RCU mode).
<Reference> EMG display of FDP display mode
(1) Transmit the code “59” from the Jig RCU.
The FDP shows the EMG content in the form of “E:**:**”.
<Example 1>
E : 01 : 03
Previous EMG
Latest EMG
Jig RCU
[Data transmitting method]
Depress the " " ( 3 ) button
after the data code is set.
<Example 2>
INITIAL MODE
CUSTOM CODE
43: A CODE
DATA CODE
Fig.2-3a
2.3.1 Displaying the EMG information
The EMG detail of information can be displayed by transmitting
the code "59" from the Jig RCU.
Note:
• The EMG detail information <1><2> show the information on the latest EMG.
It becomes “ – – : – – : – –” when there is no latest EMG
record.
0: 00
Normal display
E: * *
EMG content display (Latest)
See 2.3.4
EMG content display (Previous)
See 2.3.4
1E: * *
1: * 1
EMG detail information <1>
See 2.3.5
[Deck operation mode]
2: * 2 EMG detail information <1>
See 2.3.5
[Mechanism operation mode]
3: 34 EMG detail information <1>
See 2.3.5
[Mechanism sensor information and Mechanism mode position]
See 2.3.6
4: * 5 EMG detail information <2>
[Type of the cassette tape in use <1>]
See 2.3.6
5: * 6 EMG detail information <2>
[Winding position of the cassette tape in use]
See 2.3.6
6: * 7 EMG detail information <2>
[Type of the cassette tape in use <2> (Winding area)]
7: * 8 EMG detail information <3>
See 2.3.7
[Previous deck operation mode]
8: * 9 EMG detail information <3>
See 2.3.7
[The deck operation mode of the one before the last]
9: * 10 EMG detail information <3>
See 2.3.7
[The deck operation mode of the one prior to one above]
EMG display of 7segment LED display model
Fig.2-3-1b
0 : 00 : 00 Normal display (Counter or clock)
E: * * : * * EMG content display (E:Latest:Previous)
[EMG code display mode]
See 2.3.4
*1: *2 : 34 EMG detail information <1> display
[Deck and other mode display mode]
See 2.3.5
*5: *6 : *7 EMG detail information <2> display
[Cassette display mode]
See 2.3.6
*8: *9 : *10 EMG detail information <3> display
[Deck mode history dispaly mode]
See 2.3.7
EMG display of FDP display model
Fig.2-3-1c
1-8 (No.82992)
E:- - :- -
No EMG record
(2) Transmit the code “59” from the Jig RCU again.
The FDP shows the EMG detail information <1> in the form
of “ *1: *2 : 34 ”.
*1
*2
3–
–4
: Deck operation mode at the moment of EMG
: Mechanism operation mode at the moment of EMG
: Mechanism sensor information at the moment of EMG
: Mechanism mode position at the moment of EMG
(3) Transmit the code “59” from the Jig RCU once again.
The FDP shows the EMG detail information <2> in the form
of “ *5 : *6 : *7 ”.
*5 : Type of the cassette tape in use <1> .
*6 : Winding position of the cassette tape in use
*7 : Type of the cassette tape in use <2> (Winding area)
(4) Transmit the code “59” from the Jig RCU once again.
The FDP shows the EMG detail information <3> in the form
of “*8 : *9 : *10”.
*8 : Previous deck operation mode at the moment of EMG
*9 : The deck operation mode of the one before the last at
the moment of EMG
*10: The deck operation mode of the one prior to one
above at the moment of EMG
(5) Transmit the code “59” from the Jig RCU once again to reset the display.
2.3.2 Clearing the EMG history
(1) Display the EMG history.
(2) Transmit the code “36” from the Jig RCU.
(3) Reset the EMG display.
[For *HD only]
2.3.3 Details of the OSD display in the EMG display mode
During the EMG display, the OSD shows the data on the deck
mode, etc. The details of the display contents are as follows.
Notes:
• The display is variable depending on the part No. of the
System Control microcomputer (IC3001) built into the
VCR. In the following, refer to the figure carrying the
same two characters as the top two characters of the
part number of your IC.
• The sensor information in the OSD display contents is
partially different from the mechanism sensor information in EMG detail information <1>.
[For MN* only]
AA
BB
CC
DD
EE
FF
GG
HH
I I
JJ
KK
LL
MM
NN
OO
PP
QQ
RR
SS
TT
UU
VV
WW
XX
YY
AA
BB
CC
DD
EE
FF
GGGG
HHHH
I I
JJJJ
KKKK
LLLL
MMMM
ROM No.
AA
BB
: Key code (JVC code)
: Deck operation mode(See EMG detail information
<1>.)
CC
: Mechanism operation mode (See EMG detail information <1>.)
DD
: Sensor information (See sensor information details.)
EE
: Capstan motor speed (Search, double speed)
FF
: Tracking value
GGGG : Cassette tape type <2>, 16 bits.
(See EMG detail information <2>.)
HHHH : Supply reel winding diameter data
II
: Capstan motor speed (FF/REW, double speed)
JJJJ
: Tape speed data, lower 8 bits.
KKKK : General data display area
LLLL : General data display area
MMMM : General data display area
*DD:Sensor information details
CC
DD
EE
FF
GG
HH
II
JJ
KK
LL
MM
NN
OO
PP
: Deck operation mode (See EMG detail information <1>.)
: Mechanism operation mode
(See EMG detail of information <1>.)
: Mechanism transition flag
: Capstan motor control status
: Loading motor control status
: Sensor information (See sensor information details.)
: Capstan motor speed
: Key code (JVC code)
: Supply reel winding diameter data, higher 8 bits.
: Supply reel winding diameter data, lower 8 bits.
: Mechanism sensor information & mechanism mode position(See EMG detail of information <1>.)
: Tape speed data, higher 8 bits.
: Tape speed data, lower 8 bits.
: Cassette tape type <2>, higher 8 bits.
(See EMG detail of information <2>.)
: Cassette tape type <2>, lower 8 bits.
(See EMG detail of information <2>.)
: General data display area
*
*
*
*
*
*
Remote pause
End sensor
Start sensor
Cassette tab present = 1
Cassette tab broken = 0
[For both MN*/HD*]
Mechanism mode sequence
Mechanism mode - Encoder data
1
LSA
*FF:Sensor information details
LSB
2
3
4
5
6
*
*
8
9
10
11
LSD
Encoder output = Low
or
Trerminal - GND = SHORT
*
7
LSC
<Display>
** h
*
*
Encoder data
(See Mechanism mode sequence.)
YY: General data display area
*
*
*
*
Encoder output = High
or
Trerminal - GND = OPEN
*
No.
Encoder data
(See Mechanism mode sequence.)
Cassette tab present = 1
Cassette tab broken = 0
Cassette absent = 1
Cassette present = 0
Start sensor
End sensor
1
2
3
4
5
6
7
8
9
10
11
12
Position
EJECT
EJECT1
EJECT2
ULSTOP
UPPER
ONSTOP(PLAY)
FWD/SS
REV/SS
OFFSTOP
FFREW-BRAKE
FFREW
MIDDLE
Encoder data
0 h = 0000
1 h = 0001
2 h = 0010
3 h = 0011
4 h = 0100
5 h = 0101
6 h = 0110
7 h = 0111
8 h = 1000
9 h = 1001
A h = 1010
F h = 1111
LSD
LSC
LSB
LSA
GND
AA
BB
<Display>
** h
5 4 3 2 1
(No.82992)1-9
2.3.4 EMG content description
Note:
EMG contents “E08/E09” are for the model with Dynamic Drum (DD).
FDP
CONTENT
CAUSE
E01: Loading EMG
If the mechanism mode does not change to the next mode within 4 seconds after the loading motor starts rotating in the loading direction, while
the mechanism is in the after-loading position (with the tape up against
the pole base), [E:01] is identified and the power is switched OFF.
However, if the tape loading is not completed within 4 seconds after
the loading motor starts rotating in the loading direction, the tape is
simply unloaded and ejected. No EMG data is recorded in this case.
1. The mechanism is locked in the middle of the mode transition during a tape loading operation.
2. The mechanism overruns during the tape loading operation because the SYSCON cannot recognize
the mechanism mode normally. This problem is due to a cause such as a rotary encoder failure.
3. Power is not supplied to the loading MDA. (M12V/Vcc/Vref/ICP are disconnected in the middle.)
E02: Unloading EMG
When the mechanism mode cannot be changed to another mode
even when the loading motor has rotated for more than 4 seconds in the unloading direction, [E:02] is identified and the power
is turned off.
1. The mechanism is locked in the middle of mode transition.
2. Without an eject signal being sent from the SYSCON, unloading is attempted (i.e. Ejection is attempted
while the tape is still inside the mechanism.) because the SYSCON cannot recognize the mechanism
mode normally. This is due to a cause such as a rotary encoder failure. (Mechanism position:
UPPER)
3. Power is not supplied to the loading MDA. (M12V/Vcc/Vref/ICP are disconnected in the middle.)
E03: Take Up Reel
Pulse EMG
When the falling edje of the take-up reel pulse has not been generated for more than 4 seconds in the capstan rotating mode,
[E:03] is identified, the pinch rollers are turned off and stopped,
and the power is turned off. In this case, however, the mechanism should be in position after tape loading. Note that the reel
EMG is not detected during Slow/Frame advance operations.
1. The take-up reel pulse is not generated in the FWD transport modes (PLAY/FWD SEARCH/FF,
etc.) because;
1) The idler gear is not meshed with the take-up reel gear because the mechanism mal-functions for
some reason.
2) The idler gear is meshed with the take-up reel gear, but incapable of winding due to too large
mechanical load (abnormal tension);
3) The reel is rotating normally but an FG pulse is not generated due to the take-up reel sensor failure.
2. The supply reel pulse is not generated in the REV transport modes (REV SEARCH/REW, etc.)
because;
1) The idler gear is not meshed with the supply reel gear because the mechanism mal-functions for
some reason.
2) The idler gear is meshed with the supply reel gear, but incapable of winding due to too large a
mechanical load (abnormal tension);
3) The reel rotates normally but the FG pulse is not generated due to a supply reel sensor failure.
E04: Drum FG EMG
When the drum FG pulse has not been input for more than 3 seconds in the drum rotating mode, [E:04] is identified, the pinch rollers are turned off and stopped, and the power is turned off.
1. The drum could not start or the drum rotation has stopped due to too large a load on the tape,
because;
1) The tape tension is abnormally high;
2) The tape is damaged or a foreign object (grease, etc.) adheres to the tape.
2. The drum FG pulse did not reach the System controller CPU because;
1) The signal circuit is disconnected in the middle;
2) The FG pulse generator (hall device) of the drum is faulty.
3. The drum control voltage (DRUM CTL V) is not supplied to the MDA.
4. Power (M12V) is not supplied to the drum MDA.
E05: Cassette Eject
EMG
If the cassette does not reach the eject position within about 0.7
seconds after the cassette housing has started the cassette ejection operation, [E:05] is identified, the drive direction is reversed
to load the tape, the mode is switched to STOP mode with the
pinch roller OFF, and the power is switched OFF.
During the cassette insertion process, the drive direction is reversed
and the cassette is ejected if the tape is not up against the pole
base within about 3 seconds after the start of the cassette pullingin operation. If the cassette does not reach the eject position within
about 0.7 seconds after the drive mode reversal operation, [E:05]
is identified and the power is switched OFF immediately.
1. The cassette cannot be ejected due to a failure in the drive mechanism of the housing.
2. When the housing load increases during ejection, the loading motor is stopped because of lack of
headroom in its drive torque.
Housing load increasing factors: Temperature environment (low temperature, etc.), mechanism
wear or failure.
3. The sensor/switch for detecting the end of ejection are not functioning normally.
4. The loading motor drive voltage is lower than specified or power (M12V) is not supplied to the
motor (MDA).
5. When the user attempted to eject a cassette, a foreign object (or perhaps the user's hand) was
caught in the opening of the housing.
E06: Capstan FG
EMG
When the capstan FG pulse has not been generated for more
than 1 second in the capstan rotating mode, [E:06] is identified,
the pinch rollers are turned off and stopped, and the power is
turned off.However, the capstan EMG is not detected in SLOW/
STILL modes.
Note that, if the part number of the System Control IC begins with
"MN" or "M3", the capstan EMG is not detected even during the
FF/REW operation.
1. The capstan could not start or the capstan rotation has stopped due to too large a load on the tape,
because;
1) The tape tension is abnormally high (mechanical lock);
2) The tape is damaged or a foreign object (grease, etc.) is adhered to the tape (occurrence of tape
entangling, etc.).
2. The capstan FG pulse did not reach the System controller CPU because;
1) The signal circuit is disconnected in the middle;
2) The FG pulse generator (MR device) of the capstans is faulty.
3. The capstan control voltage (CAPSTAN CTL V) is not supplied to the MDA.
4. Power (M12V, SW5V) are not supplied to the capstan MDA.
E07: SW Power
Short-Circuit
EMG
When short-circuiting of the SW power supply with GND has lasted
for 0.5 second or more, [E:07] is identified, all the motors are
stopped and the power is turned off.
1. The SW 5 V power supply circuit is shorted with GND.
2. The SW 12 V power supply circuit is shorted with GND.
E08:
DD Initialized
(Absolute
Position
Sensor) EMG
When DD tilting does not complete in 4 seconds, [E:08] is identified, the tilt motor is stopped and the power is turned off.
1. The absolute value sensor is defective. (The soldered parts have separated.)
2. The pull-up resistor at the absolute sensor output is defective. (The soldered parts have separated.)
3. Contact failure or soldering failure of the pins of the connector (board-to-board) to the absolute value
sensor.
4. The absolute value sensor data is not sent to the System Controller CPU.
E09:
DD FG EMG
When the DD FG pulse is not generated within 2.5 seconds, [E:09]
is identified, the tilt motor is stopped and the power is turned off.
1.
2.
3.
4.
5.
6.
7.
8.
9.
When the falling edge of the supply reel pulse has not been generated for more than 10 seconds in the capstan rotating mode,
[E:0A] is identified and the cassette is ejected (but the power is
not turned off). In this case, however, the mechanism should be
in the position after tape loading (with the tape up against the pole
base). Also note that the reel EMG is not detected during Slow/
Frame advance operations.
1. The supply reel pulse is not generated in the FWD transport mode (PLAY/FWD SEARCH/FF,
etc.) because;
1) PLAY/FWD or SEARCH/FF is started while the tape in the inserted cassette is cut in the middle;
2) A mechanical factor caused tape slack inside and outside the supply reel side of the cassette shell.
In this case, the supply reel will not rotate until the tape slack is removed by the FWD transport,
so the pulse is not generated until then;
3) The reel is rotating normally but the FG pulse is not generated due to a supply reel sensor failure.
3. Power(SW5V) is not supplied to the reel sensor on the tape winding side.
E0A: Supply Reel
Pulse EMG
The FG sensor is defective. (The soldered parts have separated.)
The pull-up resistor at the FG sensor output is defective. (The soldered parts have separated.)
Contact failure or soldering failure of the pins of the connector (board-to-board) to the FG sensor.
The power (5V) to the sensor is not supplied. (Connection failure/soldering failure)
The FG pulse is not sent to the System Controller CPU.
The tilt motor is defective. (The soldered parts have separated.)
The drive power to the tilt motor is not supplied. (Connection failure/soldering failure)
The tilt motor drive MDA - IC is defective.
Auto-recovery of the DD tilting cannot take place due to overrun.
2. The take-up reel pulse is not generated in the REV transport mode (REV SEARCH/REW, etc.).
1) REV SEARCH/REW is started when the tape in the inserted cassette has been cut in the middle;
2) A mechanical factor caused tape slack inside and outside the take-up reel side of the cassette
shell. In this case, the take up will not rotate until the tape slack is removed by the REV transport,
so the pulse will not be generated until that time;
3) The reel is rotating normally but the FG pulse is not generated due to a take-up reel sensor failure.
3. The power (SW 5V) to a reel sensor is not supplied.
EU1:
Head clog warning
history
1-10 (No.82992)
Presupposing the presence of the control pulse output in the PLAY mode, when the value obtained by mixing the two V.FM output channels (without regard
to the A.FM output) has remained below a certain threshold level for more than 10 seconds, [E:U1] is identified and recorded in the emergency history.
During the period in which the head clog is detected, the FDP shows "U:01" and the OSD repeats the "3 seconds of warning display" and the "7 seconds of
noise picture display" alternately.
EMG code : "E:C1" or "E:U1" / FDP : "U:01" / OSD : "Try cleaning tape." or "Use cleaning cassette."
The head clog warning is reset when the above-mentioned threshold has been exceeded for more than 2 seconds or the mode is changed to another mode
than PLAY.
2.3.5 EMG detail information <1>
The status (electrical operation mode) of the VCR and the status
(mechanism operation mode/sensor information) of the mechanism in the latest EMG can be confirmed based on the figure in
EMG detail information <1> .
[FDP/OSD display] *1 : *2 : 34
*1
*2
3–
–4
: Deck operation mode at the moment of EMG
: Mechanism operation mode at the moment of EMG
: Mechanism sensor information at the moment of EMG
: Mechanism mode position at the moment of EMG
Note:
• For EMG detailed information <1>, the content of the
code that is shown on the display (or OSD) differs depending on the parts number of the system control microprocessor (IC3001) of the VCR. The system control
microprocessor parts number starts with two letters, refer these to the corresponding table.
*1 : Deck operation mode
[Common table of MN* and HD]
Display
MN*
HD*
00
01
02
03
04
0C
10
20
21
22
00
01
04
0E
11
22
-
24
2C
40
42
26
2E
43
-
44
4C
6C
84
85
8C
8D
8E
AC
AD
CC
CD
EC
ED
47
4C
6E
84
85
8F
AF
CD
EF
-
Deck operation mode
Mechanism being initialized
STOP with pinch roller pressure off (or tape present with P.OFF)
STOP with pinch roller pressure on
POWER OFF as a result of EMG
PLAY (Normal playback)
REC
Cassette ejected
FF
Tape fully loaded, START sensor ON, short FF
Cassette identification FWD SEARCH before transition to FF
(SPx7-speed)
FWD SEARCH (variable speed) including x2-speed
INSERT REC
REW
Cassette identification REV SEARCH before transition to REW
(SPx7-speed)
REV SEARCH (variable speed)
AUDIO DUB
INSERT REC (VIDEO + AUDIO)
FWD STILL / SLOW
REV STILL / SLOW
REC PAUSE
Back spacing
Forward spacing (FWD transport mode with BEST function)
INSERT REC PAUSE
INSERT REC back spacing
AUDIO DUB PAUSE
AUDIO DUB back spacing
INSERT REC (VIDEO + AUDIO) PAUSE
INSERT REC (VIDEO + AUDIO) back spacing
*2 : Mechanism operation mode
[Table of MN*]
Display
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
16
17
Mechanism operation mode
Command standby (No command to be executed)
Immediate Power OFF after EMG occurrence
Loading from an intermediate position during mechanism initialization
Unloading due to EMG occurrence during mechanism initialization
Ejecting cassette (ULSTOP to EJECT)
Inserting cassette (EJECT to ULSTOP)
Loading tape (ULSTOP to PLAY)
Unloading tape (PLAY to ULSTOP)
Transition from pinch roller ON to STOP
Transition from pinch roller OFF to STOP (PLAY to OFFSTOP)
Transition from pinch roller OFF to STOP at power OFF
Transition from pinch roller ON to STOP at power ON
Transition to PLAY
Transition to Search FF
Transition to REC
Transition to FWD STILL/SLOW
Transition to REV STILL/SLOW
Transition to Search REV
Transition from FF/REW to STOP
Transition to FF
Transition to REW
Tape end detection processing during loading
Short FWD/REV at tape sensor ON during unloading
Transition to FF/REW brake mode
[Table of HD*]
Display
00
01
02
04
05
0E
11
22
26
2E
43
47
4C
6E
84
85
8F
AF
C7
CD
EF
F0
F1
F2
F3
F4
F5
F6
F7
F8
F9
FA
FB
FC
FD
FE
FF
Mechanism operation mode
STOP with pinch roller pressure off
STOP with pinch roller pressure on
U/L STOP (or tape being loaded)
PLAY (Normal playback)
PLAY (x1-speed playback using JOG)
REC
Cassette ejected
FF
FWD SEARCH (variable speed) including x2-speed
INSERT REC
REW
REV SEARCH
AUDIO DUB
INSERT REC (VIDEO + AUDIO)
FWD STILL/SLOW
REV STILL/SLOW
REC PAUSE
INSERT REC PAUSE
REV SEARCH (x1-speed reverse playback using JOG)
AUDIO DUB PAUSE
INSERT REC (VIDEO + AUDIO) PAUSE
Mechanism being initialized
POWER OFF as a result of EMG
Cassette being inserted
Cassette being ejected
Transition from STOP with pinch roller pressure on to STOP with pinch
roller pressure off
Transition from STOP with pinch roller pressure on to PLAY
Transition from STOP with pinch roller pressure on to REC
Cassette type detection SEARCH before FF/REW is being executed
Tape being unloaded
Transition from STOP with pinch roller pressure off to STOP with pinch
roller pressure on
Transition from STOP with pinch roller pressure off to FF/REW
Transition from STOP with pinch roller pressure off to REC.P (T.REC,etc.)
Transition from STOP with pinch roller pressure off to cassette type
detection SEARCH
Short REV being executed after END sensor on during unloading
Tension loosening being executed after tape loading (STOP with pinch
roller pressure on)
Tape being unloaded
(No.82992)1-11
3- : Mechanism sensor information
*5 : Cassette tape type <1>
[Common table of MN* and HD*]
Display
Mechanism sensor informatio n
Display
REC safety SW
0123456789ABCDEF-
Tab broken
Tab broken
Tab broken
Tab broken
Tab present
Tab present
Tab present
Tab present
Tab broken
Tab broken
Tab broken
Tab broken
Tab present
Tab present
Tab present
Tab present
Tab broken = 0
Tab present = 1
Start sensor
End sensor
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
Mechansim
position sensor
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
Sensor ON = 0
sensor OFF = 1
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Sensor ON = 0
Sensor OFF = 1
-4 : Mechanism mode position
[Common table of MN* and HD*]
Mechanism
sensor
information
Even number
(0, 2, 4, 6, 8,
A, C, E)
Odd number
(1, 3, 5, 7, 9,
B, D, F)
Display
-0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-A
-B
-C
-D
-E
-F
-0
-1
-2
-3
-4
-5
Deck operation mode
Not established
EJECT
EJECT position
EJECT-EJECT1
Intermodal position
EJECT1
EJECT1 position
EJECT1-EJECT2 Intermodal position
EJECT2
EJECT2 position
EJECT2-ULSTOP Intermodal position
ULSTOP
ULSTOP position
ULSTOP-UPPER Intermodal position
UPPER
Loading (unloading) tape
UPPER-ONSTOP Intermodal position
ONSTOP
PLAY position
PLAY-FWD/SS
Intermodal position
FWD/SS
FWD (FWD Still/Slow) position
FWD/SS-REV
Intermodal position
REV
REV (REV Still/Slow) position
REV-OFFSTOP
Intermodal position
OFFSTOP
Pinch roller OFF position
OFFSTOP-FFREWB Intermodal position
FFREWB
FF/REW Brake position
FFREWB-FFREW Intermodal position
FFREW
FF/REW position
2.3.6 EMG detail information <2>
The type of the cassette tape and the cassette tape winding position can be confirmed based on the figure in EMG detail information <2> .
Note:
• EMG detail information <2> is the reference information
stored using the remaining tape detection function of
the cassette tape. As a result, it may not identify cassette correctly when a special cassette tape is used or
when the tape has variable thickness.
1-12 (No.82992)
00
16
82
84
92
93
C3
D3
E1
E2
E9
F1
Cassette tape type <1>
Cassette type not identified
Large reel/small reel (T-0 to T-15/T-130 to T-210) not classified
Small reel, thick tape (T-120) identified/thin tape (T-140) identified
Large reel (T-0 to T-60) identified
Small reel, thick tape (T-130) identified/thin tape (T-160 to T-210) identified
Small reel, thick tape/C cassette (T-0 to T-100/C cassette) not classified
Small reel, thick tape/C cassette (T-0 to T-100/C cassette) being classified
Small reel, thick tape/C cassette (T-0 to T-100/C cassette) being classified
C cassette, thick tape (TC-10 to TC-20) identified
Small reel, thick tape (T-0 to T-100) identified
C cassette, thin tape (TC-30 to TC-40) identified
C cassette, thick tape/thin tape (TC-10 to TC-40) not classified
Notes:
• Cassette tape type <1> is identified a few times during
mode transition and the identification count is variable
depending on the cassette tape type. If an EMG occurs
in the middle of identification, the cassette tape type
may not be able to be identified.
• If other value than those listed in the above table is displayed, the cassette tape type is not identified.
*6 : Cassette tape winding position
The cassette tape winding position at the moment of EMG is displayed by dividing the entire tape (from the beginning to the end)
in 21 sections using a hex number from “00” to “14”.
“00” : End of winding
“14” : Beginning of winding
“FF” :Tape position not identified
*7 : Cassette tape type <2> (Winding area)
Display
Cassette tape type <2>
(Reference) Word data
(Beginning)
(End)
00
04 - 08
05 - 06
05 - 0C
06 - 0C
06 - 0C
07 - 08
09 - 0B
0C - 0D
0D - 0F
0E - 10
10 - 12
10 - 13
11 - 14
12 - 14
13 - 14
13 - 14
13 - 14
13 - 14
15 - 16
16 - 17
17 - 18
19 - 1B
Cassette type not identified
C cassette, thick tape
TC-10
Small reel, thick tape
T-20
C cassette, thick tape
TC-20P
C cassette, thin tape
TC-40
C cassette, thin tape
TC-30
Small reel, thick tape
T-40
Small reel, thick tape
T-60
Small reel, thick tape
T-80(DF-160)
Small reel, thick tape
T-90(DF-180)
Small reel, thick tape
T-100
Small reel, thin tape
T-140
Small reel, thick tape
T-120(DF-240)
Small reel, thick tape
T-130
Small reel, thin tape
T-160
Small reel, thin tape
T-210(DF-420)
Small reel, thin tape
T-180(DF-360)
Small reel, thin tape
T-168
Small reel, thick tape
DF-300
Large reel
T-20
Large reel
T-30
Large reel
T-40
Large reel
T-60
(0497 - 0506) (0732 - 0858)
(05A9 - 0661)
(0599 - 05FF) (0AA1 - 0C07)
(0623 - 063D) (0C41 - 0CC3)
(0611 - 0638) (0C0C - 0CB2)
(07CC - 08E5)
(09FD - 0B78)
(0C20 - 0DFC)
(0D31 - 0F3E)
(0E43 - 107F)
(10E1 - 120C)
(1073 - 1313)
(1185 - 1429)
(12D3 - 141F)
(1373 - 14C3)
(1357 - 14C0)
(1395 - 14EE)
(13A8 - 14CE)
(1536 - 1618)
(1647 - 175A)
(1759 - 189C)
(1989 - 1B2F)
Note:
• The values of cassette tape type <2> in the above table
are typical values with representative cassette tapes.
2.3.7 EMG detail information <3>
Three deck operation modes preceding the deck operation mode
in which the EMG occurs may be confirmed based on the figures
in the EMG information detail <3>. For the contents of the displayed information, see the table "Deck operation mode" in section "2.3.5 EMG detail information <1>".
2.4 Service position
TP106
PB FM
This unit has been designed so that the Mechanism and Main
board assemblies can be removed together from the chassis assembly. Before diagnosing or servicing the circuit boards, take
out the major parts from the chassis assembly.
2.4.1 How to set the “Service position”
(1) Refer to the disassembly procedure and perform the disassembly of the major parts before removing the Mechanism
assembly.
(2) Remove the screws that fix the Mechanism assembly to
the Chassis assembly. If any other screws are used to fix
the boards, remove them also.
(3) Remove the combined Mechanism and Main board assemblies.
(4) If any other major parts are used, remove them also.
(5) Connect the wires and connectors of the major parts that
have been removed in steps (1) to (4). (Refer to Fig. 2-41a.)
(6) Place the combined Mechanism, Main board and other
board assemblies upside down.
(7) Insert the power cord plug into the power outlet and then
proceed with the diagnostics and servicing of the board assembly.
Notes:
• Before inserting the power cord plug into the power outlet, make sure that none of the electrical parts are able
to short-circuit between the workbench and the board
assembly.
• For the disassembly procedure of the major parts and
details of the precautions to be taken, see “2.2 Removing the major parts”.
• If there are wire connections from the Main board and
Mechanism assemblies to the other major parts, be sure
to remove them (including wires connected to the major
parts) first before performing step (2).
• When carrying out diagnosis and repair of the Main
board assembly in the “Service position”, be sure to
ground both the Main board and Mechanism assemblies. If they are improperly grounded, there may be
noise on the playback picture or FDP counter display
may move even when the mechanism is kept in an inoperative status.
• In order to diagnose the playback or recording of the
cassette tape, set the Mechanism assembly to the required mode before placing it upside down. If the mechanism mode is changed (including ejection) while it is in
an upside down position the tape inside may be damaged.
• For some models, the mechanism and board assemblies are attached by connectors only. When carrying
out a diagnosis or repair of the boards in the “Service
position”, make sure that the connectors are not disconnected.
TP111
D.FF
TP2253
A.PB.FM
TP4001
CTL.P
Main board
assembly
CP4002
CP3002
C3042
Timer clock
Fig.2-4-1a
2.5
Jig RCU mode
This unit uses the following two modes for receiving remote control codes.
(1) User RCU mode:Ordinary mode for use by the user.
(2) Jig RCU mode: Mode for use in production and servicing.
When using the Jig RCU, it is required to set the VCR to the Jig
RCU mode (the mode in which codes from the Jig RCU can be
received). As both of the above two modes are stored in the EEPROM, it is required to set the VCR back to the User RCU mode
each time that an adjustment is made or to check that the necessary operations have been completed.These modes can be set
by the operations described below.
Note:
• Confirm the RCU mode when exchanged parts. Since
some SERVICE PARTS sets the VCR to the Jig RCU
mode as initial setting.
User RCU mode
Jig RCU mode
( : not displayed)
Fig.2-5a User/Jig RCU mode
2.5.1 Setting the Jig RCU mode
(1) Turn on the power.
(2) Press the following remocon keys continuously within 2
seconds " MENU " → " 2 " → " 8 " → " OK ".
Note:
• When the VCR is set to the Jig RCU mode, the symbols
( " : " ) in the time display of the FDP are turned off.
(7 segment LED display model)
• When the VCR is set to the Jig RCU mode,the "POWER"
button of RCU will not work.
(non 7 segment LED display model)
(Refer to Fig.2-5a)
(No.82992)1-13
2.5.2 Setting the User RCU mode
(1) Turn off the power.
(2) Press the “REC” and “PAUSE” buttons of the VCR simultaneously. Alternatively, transmit the code “80” from the Jig
RCU.
2.6
Mechanism service mode
This model has a unique function to enter the mechanism into every operation mode without loading of any cassette tape. This
function is called the “Mechanism service mode”.
2.6.1 How to set the “Mechanism service mode”
(1) Set the VCR to the Jig RCU mode (the mode in which
codes from the Jig RCU can be received)
(2) Transmit the code “E5” from the Jig RCU.
(3) Release the lug of the Cassette holder and then slide the
Cassette holder toward the direction where the Cassette
holder is loaded by manually.
(4) The cassette holder lowers and, when the loading has
completed, the mechanism enters the desired mode.
When the VCR is set to the Mechanism service mode, the
symbols (“Timer”) in the FDP (LED) are blinked.
(7 segment LED display model)
2.7.2 Lubrication
With no need for periodical lubrication, you have only to lubricate
new parts after replacement. If any oil or grease on contact parts
is soiled, wipe it off and newly lubricate the parts.
Note:
• See the “mechanism assembly” diagram of the “parts
list” for the lubricating or greasing spots, and for the
types of oil or grease to be used.
2.7.3 Suggested servicing schedule for main components
The following table indicates the suggested period for such service measures as cleaning, lubrication and replacement. In practice, the indicated periods will vary widely according to
environmental and usage conditions. However, the indicated
components should be inspected when a set is brought for service and the maintenance work performed if necessary. Also
note that rubber parts may deform in time, even if the set is not
used.
System
2.6.2 How to exit from the "Mechanism service mode"
(1) Unplug the power cord plug from the power outlet.
2.7
Maintenance and inspection
2.7.1 Cleaning
Regular cleaning of the transport system parts is desirable but
practically impossible. So make it a rule to carry out cleaning of
the tape transport system whenever the machine is serviced.
When the video head, tape guide and/or brush get soiled, the
playback picture may appear inferior or at worst disappear, resulting in possible tape damage.
Note:
• Absolutely avoid sweeping the upper drum vertically as
this will cause damage to the video head.
(1) When cleaning the upper drum (especially the video head),
soak a piece of closely woven cloth with alcohol and while
holding the cloth onto the upper drum by the fingers, turn
the upper drum counterclockwise.
(2) To clean the parts of the tape transport system other than
the upper drum, use a piece of closely woven cloth or a cotton swab soaked with alcohol.
(3) After cleaning, make sure that the cleaned parts are completely dry before using the cassette tape.
Tape
transport
Drive
Other
Parts name
Operation hours
1000H
2000H
Drum assembly
C,X
X
A/C head
C,X
C,X
Pinch roller arm assembly
C
C
Full erase head
C
C
Tension arm assembly
C
C
Capstan motor (Shaft)
C
C
Guide arm assembly
C
C
Capstan motor
X
Capstan brake assembly
X
Main brake assembly
X
Belt (Capstan)
X
X
Loading motor
X
Clutch unit
X
Worm gear
X
Control plate
X
Rotary encoder
X
C : Cleaning
X : Inspection or Replacement if necessary
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM
ASSEMBLY).
A/C head
Video heads
Fig.2-7-1a
MECHANISM ASSEMBLY
1-14 (No.82992)
SECTION 3
ADJUSTMENT
Before adjustment
3.1.4 Color (colour) bar signal,Color (colour) bar pattern
Colour bar signal [PAL]
Colour bar pattern [PAL]
White(100%)
3.1.3 Required adjustment tools
: Used --- : Not used
Mechanism
compatibility
adjustment
Electrical
adjustment
---
Roller driver
---
Jig RCU
Red
Blue
1V
0.3 V
0.3 V
V
U
White
100%
Black
V(R-Y)
U(B-Y)
Horizontal sync
Color(colour) bar signal [NTSC]
Color(colour) bar pattern [NTSC]
Blue
Red
Magenta
Green
Cyan
Burst
Yellow
100 IRE
(75%)
White
White(75%)
Cyan
Green
Magenta
Red
Blue
Yellow
White(100%)
3.1.2 Required test equipments
• Color (colour) television or monitor
• Oscilloscope: wide-band, dual-trace, triggered delayed sweep
• Signal generator: RF / IF sweep / marker
• Signal generator: stairstep, color (colour) bar [PAL/NTSC]
• Recording tape
• Digit-key remote controller(provided)
Green
U
Magenta
V
Cyan
Yellow
Burst
White
0.7 V
Blue
White(75%)
(75%)
Cyan
Green
Magenta
Red
3.1.1 Precaution
• The adjustments of this unit include the mechanism compatibility and electrical adjustments. During the performance of this work, be sure to observe the precautions for
each type of adjustment.
• If there is a reference to a signal input method in the signal
column of the adjustment chart, “Ext. S-input” means the
Y/C separated video signal and “Ext. input” means the
composite video signal input.
• Unless otherwise specified, all measuring points and
adjustment parts are located on the Main board.
Yellow
3.1
1V
40 IRE
40 IRE
Q
Q
I
White
100%
I
Black
Horizontal sync
3.1.5 Switch settings
When adjusting this unit, set the VCR mode and switches
as described below.
• When using the Jig RCU, it is required to set the VCR to the
Jig RCU mode (the mode in which codes from the Jig RCU can
be received). (See "section 2 SPECIFIC SERVICE INSTRUCTIONS".)
Jig RCU
Back tension cassette gauge
---
Alignment tape(MHPE)
---
[Data transmitting method]
Depress the " "( 3 ) button
after the data code is set.
Alignment tape(MHPE-L)
INITIAL MODE
Roller driver
PTU94002
Alignment tape
(SP, stairstep, PAL)
MHPE
Jig RCU
PTU94023B
Alignment tape
(LP, stairstep, PAL)
MHPE-L
Back tension cassette gauge
PUJ48076-2
CUSTOM CODE
43: A CODE
DATA CODE
Fig.3-1-5a Jig RCU [PTU94023B]
• Set the switches as shown below unless otherwise specified
on the relevant adjustment chart. The switches that are not listed below can be set as desired.
If the VCR is not equipped with the functions detailed below,
setup is not required.
AUTO PICTURE/VIDEO CALIBRATION/
B.E.S.T./D.S.P.C.
PICTURE CONTROL/SMART PICTURE
VIDEO STABILIZER
TBC
Digital 3R
VIDEO NAVIGATION/TAPE MANAGER
BLUE BACK
OFF
NORMAL/NATURAL
OFF
ON
ON
OFF
OFF
3.1.6 Manual tracking mode (Auto tracking ON/OFF) setting
(1) In order to set to the manual tracking mode during tape
playback, press the “SP/EP(LP)”button on the remote control unit.
• Each press of the button switches the auto tracking ON
or OFF.
• When the manual tracking mode is set, the tracking is
placed at the center position.
(2) Press “channel +/-” to adjust the tracking manually.
(No.82992)1-15
3.2 Mechanism compatibility adjustment
3.2.2 FM waveform linearity
Notes:
• Although compatibility adjustment is very important, it
is not necessary to perform this as part of the normal
servicing work. It will be required when you have replaced the A/C head, drum assembly or any part of the
tape transport system.
• To prevent damaging the alignment tape in the compatibility adjustment, prepare a cassette tape (for self-recording/
playback), perform a test on it by transporting it and making sure that the tape is not bent by the tape transport
mechanisms such as in the guide rollers.(See Fig.3-2-2a.)
Signal
3.2.1 Tension pole position
Notes:
• This adjustment must be performed every time the tension band is replaced.
Signal
(A)
Mode
(B1) • PB
(B2) • Eject end
• Back tension cassette gauge [PUJ48076-2]
Adjustment part (F)
• Adjust pin [Mechansim assembly]
Specified value (G)
• 25 - 51 gfcm (2.45 - 5 x 10
-3
Nm)
(1) Play back the back tension cassette gauge (A).
(2) Check that the indicated value on the left side gauge is
within the specified value (G).
(3) If the indicated value is not within the specified value (G),
perform the adjustment in a following procedure.(See
Fig.3-2-1a.)
a) Remove the top frame, cassette holder and side
frames (L/R) all together. (Refer to the SERVICE
MANUAL No.86700 [MECHANISM ASSEMBLY].)
b) Rotate the loading motor gear to move the control
plate so that the triangular stamping to the left of the
“P”stamping is aligned with the stamping (a) on the
main deck. This positioning is mode (B1).
c) Adjust by turning the adjustment pin so that the tip of
the tension arm is aligned with the stamping (b) on
the main deck.
d) Rotate the reel disk (S) by about one turn clockwise
and make sure that the round hole of the adjustment
pin is located in the “OK” range. If it is outside this
range, restart the adjustment from the beginning.
After completion of the adjustment, rotate the loading gear
motor to return it to the mode (B2) position.
Mode
Equipment
Measuring point
External trigger
Adjustment part
Specified value
Adjustment tool
(A1)
(A2)
(B)
(C)
(D)
(E)
(F)
(G)
(H)
•
•
•
•
•
•
•
•
•
Alignment tape(SP, stairstep, PAL) [MHPE]
Alignment tape(LP,stairstep,PAL) [MHPE-L]
PB
Oscilloscope
TP106 (PB. FM)
TP111 (D.FF)
Guide roller [Mechanism assembly]
Flat V.PB FM waveform
Roller driver [PTU94002]
(1) Play back the alignment tape (A1).
(2) Apply the external trigger signal to D.FF (E), to observe
the V.PB FM waveform at the measuring point (D).
(3) Set the VCR to the manual tracking mode.
(4) Make sure that there is no significant level drop of the V.PB
FM waveform caused by the tracking operation, with its
generally parallel and linear variation ensured. Perform the
following adjustments when required. (See Fig. 3-2-2b.)
(5) Reduce the V.PB FM waveform by the tracking operation.
If a drop in level is found on the left side, turn the guide roller of the pole base assembly (supply side) with the roller
driver to make the V.PB FM waveform linear.
If a drop in level is on the right side, likewise turn the guide
roller of the pole base assembly (take-up side) with the
roller driver to make it linear. (See Fig. 3-2-2b.)
(6) Make sure that the V.PB FM waveform varies in parallel
and linearly with the tracking operation again. When required, perform fine-adjustment of the guide roller of the
pole base assembly (supply or take-up side).
(7) Unload the cassette tape once, play back the alignment
tape (A1) again and confirm the V.PB FM waveform.
(8) After adjustment, confirm that the tape wrinkling does not
occur at the roller upper or lower limits. (See Fig. 3-2-2a.)
[Perform adjustment step (9) only for the models equipped
with SP mode and EP (or LP) mode.]
[Perform adjustment step (9) only for the models
equipped with SP mode and EP (or LP) mode.]
(9) Repeat steps (1) to (8) by using the alignment tape (A2).
Improper
(a) GUIDE ROLLER
TENSION ARM
(b) GUIDE POLE
CONTROL PLATE
Stamping(a)
Stamping(b)
OK
NG
ADJUST PIN
Fig.3-2-1a
1-16 (No.82992)
Fig.3-2-2a
Proper
3.2.4 A/C head phase (X-value)
Proper waveform variation
Signal
Mode
Equipment
Measuring point
External trigger
Adjustment part
Specified value
Adjustment tool
A
B
C
D
Roller driver
Guide roller
(supply side)
Fig.3-2-2b
3.2.3 Height and tilt of the A/C head
Note:
• Set a temporary level of the height of the A/C head in advance to make the adjustment easier after the A/C head
has been replaced. (Refer to the SERVICE MANUAL
No.86700 [MECHANISM ASSEMBLY].)
Signal
Mode
Equipment
Measuring point
(A)
(B)
(C)
(D1)
(D2)
External trigger (E)
Adjustment part (F)
Specified value (G)
•
•
•
•
•
•
•
•
Alignment tape(SP, stairstep, PAL) [MHPE]
PB
Oscilloscope
TP106 (PB. FM)
TP4001 (CTL. P)
TP111 (D.FF)
A/C head [Mechanism assembly]
Maximum waveform
(1) Play back the alignment tape (A).
(2) Apply the external trigger signal to D.FF (E), to observe the
AUDIO OUT waveform and Control pulse waveform at the
measuring points (D1) and (D2) in the ALT mode.
(3) Set the VCR to the manual tracking mode.
(4) Adjust the AUDIO OUT waveform and Control pulse waveform by turning the screws (1), (2) and (3) little by little until
both waveforms reach maximum. The screw (1)
and (3) are for adjustment of tilt and the screw (2) for azimuth.
Head base
AUDIO OUT
Alignment tape(SP, stairstep, PAL) [MHPE]
Alignment tape(LP,stairstep,PAL) [MHPE-L]
PB
Oscilloscope
TP106 (PB. FM)
TP111 (D.FF)
A/C head base [Mechanism assembly]
Flat V.PB FM waveform
Roller driver [PTU94002]
To the drum
Roller driver
Toward the capstan
Screw (4)
Head base
Toward the drum
A/C head
Screw (5)
To the capstan
Fig.3-2-4a
(2)
(1)
•
•
•
•
•
•
•
•
•
(1) Play back the alignment tape (A1).
(2) Apply the external trigger signal to D.FF (E), to observe the
V.PB FM waveform at the measuring point (D).
(3) Set the VCR to the manual tracking mode.
(4) Loosen the screws (4) and (5), then set the Roller driver to
the innermost projected part of the A/C head. (See Fig. 32-4a.)
(5) Rotate the roller driver so that the A/C head comes closest
to the capstan. From there, move the A/C head back gradually toward the drum until the point where the FM waveform is maximized for the second time, and then
tighten the screws (4) and (5) temporarily.
(6) Play an alignment tape (A2) and set to the manual-tracking
mode.
(7) Fine-adjust A/C head base position to maximize the FM
waveform, and then tighten the screws (4) and (5) firmly.
(8) Play alignment tapes (A1) and (A2) and confirm that the FM
waveforms are maximized when the tracking is at the center position.
Waveform output
Improper waveform variation
Up
Down
(A1)
(A2)
(B)
(C)
(D)
(E)
(F)
(G)
(H)
Alignment tape
[SP, stairstep]
played with the
SP head
Alignment tape
[EP(LP), stairstep]
played with the
EP(LP) head
X-value adjustment point
Drum side
Control head position
Capstan side
CTL.P
A/C head
Maximum
(3)
Fig.3-2-3a
Fig.3-2-4b
(No.82992)1-17
3.3 Electrical adjustment
3.3.1.2
Note:
The following adjustment procedures are not only necessary
after replacement of consumable mechanical parts or board
assemblies, but are also provided as references to be referred
to when servicing the electrical circuitry.
In case of trouble with the electrical circuitry, always begin a
service by identifying the defective points by using the measuring instruments as described in the following electrical adjustment procedures. After this, proceed to the repair,
replacement and/or adjustment. If the required measuring instruments are not available in the field, do not change the adjustment parts (variable resistor, etc.) carelessly.
Signal
3.3.1 Servo circuit
3.3.1.1
Switching point
Signal
(A1)
(A2)
(A3)
Mode
(B)
Equipment
(C)
Measuring point (D)
External trigger
Adjustment part
Specified value
Adjustment tool
(E)
(F)
(G)
(H)
•
•
•
•
•
•
•
•
•
•
•
Stairstep signal
Alignment tape(SP,stairstep,PAL) [MHPE]
Alignment tape(LP,stairstep,PAL) [MHPE-L]
PB
Oscilloscope
VIDEO OUT terminal (75 ohm terminated)
TP106 (PB. FM)
TP111 (D.FF)
Jig RCU: Code “5A”
6.5 ± 0.5H
Jig RCU [PTU94023B]
<2 Head Model>
(1) Play back the signal (A1) of the alignment tape (A2).
(2) Apply the external trigger signal to D.FF (E) to observe
the VIDEO OUT waveform and V.PB FM waveform at
the measuring points (D1) and (D2).
(3) Set the VCR to the manual tracking mode.
(4) Adjust tracking so that the V.PB FM waveform becomes
maximum.
(5) Set the VCR to the Auto adjust mode by transmitting the
code (F) from the Jig RCU. When the VCR enters the
stop mode, the adjustment is completed.
(6) If the VCR enters the eject mode, repeat steps (1) to (5)
again.
(7) Play back the alignment tape (A2) again, confirm that the
switching point is the specified value (G).
<4 Head Model>
(1) Play back the signal (A1) of the alignment tape (A3).
(2) Perform the above steps (2) to (6).
Trigger point
V.sync
Switching point
V. rate
Fig.3-3-1a Switching point
1-18 (No.82992)
Slow tracking preset
Mode (Notes)
(A1)
(A2)
(A3)
(B)
Measuring point
Adjustment part
Specified value
Adjustment tool
(D)
(F)
(G)
(H)
• Ext. input
• Color (colour) bar signal [PAL]
• Color (colour) bar signal [NTSC]
2 Head Model
• VHS LP (EP)
4 Head Model
• VHS SP/LP (EP)
• TV-Monitor
• Jig RCU: Code “71”or “72”
• Minimum noise
• Jig RCU [PTU94023B]
(1) Record the signal (A2) in the mode (B), and play back the
recorded signal.
(2) Set the VCR to the manual tracking mode.
(3) Set the VCR to the FWD slow (+1/6x) mode.
(4) Transmit the code (F) from the Jig RCU to adjust so that the
noise bar becomes the specified value (G) on the TV monitor in the slow mode.
(5) Set the VCR to the Stop mode.
(6) Confirm that the noise bar is (G) on the TV monitor in the
slow mode.
(7) Record the signal (A3) in the mode (B), and play back the
recorded signal.
(8) Repeat steps (2) to (6).
(9) Repeat steps (2) to (8) in the REV slow (-1/6x) mode.
Note:
• For FWD slow (+1/6x) playback, transmit the code "08"
from the Jig RCU to enter the slow playback mode, and
transmit the code “D0” for REV slow (+1/6x) mode.
• For 2 Head models, adjustments should generally be
performed in SP recording mode. However, for 2 Head
models equipped with LP (or EP) mode, adjustments
should be performed in LP (or EP) recording mode only.
3.3.2 Syscon circuit
Notes:
• When perform this adjustment, remove the Mechanism
assembly.
3.3.2.1
Timer clock
Signal
Mode
Equipment
Measuring point
(A1)
(B)
(C)
(D1)
(D2)
(D3)
(D4)
Adjustment part (F)
Specified value (G1)
•
•
•
•
•
•
•
•
•
No signal
EE
Frequency counter
IC3001 pin 29
IC3001 pin 31
IC3001 pin 32
IC3001 pin 25
C3042 (TIMER CLOCK)
1024.008 ± 0.001 Hz
(976.554 ± 0.001 µsec)
(1) Connect the frequency counter to the measuring point
(D1).
(2) Connect the short wire between the short point (D2) and
(D3) to GND.
(3) Short the point (D4) and GND in order to reset the microprocessor of the Syscon.
(4) Disconnect the short wire between the short point (D3) and
GND.
(5) Adjust the Adjustment part (F) so that the output frequency
becomes the specified value (G).
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY VIDEO RECORDER CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
(No.82992)
Printed in Japan
WPC
Download PDF
Similar pages