Stereo Cassette Deck

SONY
Stereo
Cassette Deck
Operating Instructions
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
RISK OF ELECTRIC SHOCK
DC NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the
product's enclosure that may be of
sufficient magnitude to constitute a
risk of electric shock to persons.
This symbol is intended to alert the
user to the presence of important
operating and maintenance (servicing)
instructions in the literature
accompanying the appliance.
*The graphical symbols are on the rear enclosure.
Owner’s Record
The model and serial numbers are located at the rear.
Record the serial number in the space provided below.
Refer to these numbers whenever you call upon your
Sony dealer regarding this product.
Model No. TC-K950ES Serial No.
INFORMATION
This equipment generates and uses radio frequency
energy and if not installed and used properly, that is, in
strict accordance with the manufacturers instructions,
may cause interference to radio and television reception.
It has been type tested and found to comply with the
limits for a Class B computing device in accordance with
the specifications in Subpart J of Part 15 of FCC Rules,
which are designed to provide reasonable protection
against such interference in a residential installation.
However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does
cause interference to radio or television reception, which
can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference
by one or more of the following measures:
Reorient the receiving antenna
Relocate the equipment with respect to the receiver
Move the equipment away from the receiver
Plug the equipment into a different outlet so that
equipment and receiver are on different branch circuits.
If necessary, the user should consult the dealer or an
experienced radioltelevision technician for additional
suggestions. The user may find the following booklet
prepared by the Federal Communications Commission
helpful:
“How to Identify and Resolve Radio-TV Interference
Problems”.
This booklet is available from the U.S. Government
Printing Office, Washington, DC 20402, Stock No.
004-000-00345-4.
Table of Contents
Features
Getting Started
Features ……..….….…..….……urrecrercecesaeaseneacerenrar ane ne nanas ares cena cen anna a0m0e 3
Precautions .............—.—...e=eríeieeinerrenenr rene ener Ueranenenenrenees 3
Installation ...............e e. ..ese===e==-riiecicerierrer reee nece ene 4
Connections ............ee.—.....eeemeesenercencener reee renta ane n an ere meme cn ee 4
Identification of front panel parts... em. 5
Playback
Playing back a tape …...…..…...…....….…ccssssrrrerennenercacenanece sacre 6
Locating the beginning of a selection during playback
—Automatic Music Sensor(AMS) ….………serirssssssannunns 7
Playing back automatically after fast winding
— AUTO PlAY..............crcrecrenrenesnne ses sra casse rearana came eee 8
Locating a desired position using the memory counter
—-Memory play ...............e=.e=.—...-rieeaceneenenorerenencecaccenenee. 8
Recording
Recording on Tape .……..…..........……seccsssmerserissaicenmenn ent encenene 9
Adjusting the Recording level... 10
Monitoring the recorded sound ..................—.. 10
What is the Dolby HX PRO system? ........................ 11
Inserting a blank space during recording
— Record muting ................-.——.e=cervereneenine rene 11
Making an optimum recording according to the tape
14770 - EOS 12
Bias and Recording Level Calibration ...................... 12
Recording Equalization Calibration 13
Using with a timer
Timer-activated playback and recording... 14
Maintenance................. evi mecirieccene ecc Deer rene nacer nee nee 14
Specifications... ceric, 15
Troubleshooting quide..….................…crerseremerceencencascauee 16
The TC-K950ES is a cassette deck equipped with a
laseramorphous magnetic alloy head using LC-OFC
winding for playback, and features the foilowing
functions.
* Professional-level deck design for high mechanical
stability and maximum performance.
* 3-head system (separate record, playback and erase
heads) allows you to instantly check the recorded
sound while recording is in progress.
* Bias and recording level calibration ensures optimum
recording conditions to bring out the best in every tape.
* The Dolby HX PRO* system improves the linearity of
the tape's high-range response during recording.
» Easy-to-read digital linear counter shows the elapsed
recording or playing time.
* The AMS function provides easy access to a desired
selection.
* Dolby noise reduction and HX PRO headroom extension
manufactured under license from Dolby Laboratories Licensing
Corporation. HX PRO originated by Bang & Olufsen.
* “Dolby”, the double-D symbol Ol and “HX PRO” are trademarks
of Dolby Laboratories Licensing Corporation.
Precautions
On safety
¢ Operate the unit only on 120 V AC, 60Hz.
e Should any solid object or liquid fall into the cabinet, unplug
the unit and have it checked by qualified personnel before
operating it any further.
* Unplug the unit from the wali outlet if it will not be used for
a long time. To disconnect the cord, pull it out by grasping
the plug. Never pull the cord itself.
On operation
* When the unit is not used, turn the power off to conserve
energy and to extend the useful life of your unit.
On head cleaning
The head and tape path should be cleaned after every 10
hours of operation. Dirty heads and a dirty tape path may
cause:
— loss of high-frequency response
—loss of sound volume
—sound drop-out
Note on cassettes longer than 90 minutes
The use of cassettes longer than 80 minutes is not
recommended except for long continuous playback.
If you have any questions or problems concerning your unit,
please contact your nearest Sony dealer.
For detailed safety precautions, see the leaflet “IMPORTANT
SAFEGUARDS”.
Installation
Notes on installation
* Place the unit in a location with adequate air
circulation to prevent internal heat build-up in the unit.
* Do not place the unit on a soft surface, such as a rug,
that would block the ventifation holes on the bottom.
* Install the unit with the front panel facing toward you.
Connections
* Do not install the unit:
— near heat sources such as radiators or air ducts.
—in a place subject to direct sunlight, excessive dust,
mechanical vibration or shock.
—in an inclined position.
Notes on Connections
* Turn off the power to ail equipment before making any
connection.
* Note that the red plug of the supplied connecting cord
is for right-channel (R) connection and the white plug
for left-channel (L) connection.
The connecting cords should be fully inserted into the
jacks. À loose connection may cause hum pickup.
L O mal AVENT. >) L
в («+= EDITA Do) R
Red
CD player
<—— Signal flow
m) to an AC outlet
TC-K950ES
rN mp ito an AC outlet
ттт
for playback
for recording
Amplifier
to a wall
outlet
* Connecting a CD player or a DAT deck to the CD
DIRECT input terminal allows the sound signal of the
connected unit to be directly input to the unit. Since
this shortens the signal path, the result is higher sound
quality. However, due to the shortened signal path, the
BALANCE switch and MPX filter are rendered
inoperative during input from the CD direct input
terminal. If your CD player is equipped with two sets of
output terminals, connect one set to the amplifier and
the other to the CD direct input terminal of this unit.
You may then use the INPUT switch to switch between
CD direct input or line input to suit your recording
needs.
Connection for Tape Dubbing
00 « т
Г to a wall outlet
TC-K950ES
<—— Signal flow
Another tape deck
— —
! —
=
mb to an AC
outlet
For details, refer to the pages indicated in @.
Identification of Front Panel Parts
[1] POWER switch
[2] Remote sensor
You can remotely control this cassette deck with:
— À remote commander that has an KB mark and comes with a
Sony amplifier or receiver and which can be used to control a
cassette deck.
— An optional Sony remote commander that has an El mark.
[3 | LINEAR COUNTER
RESET button © ©
MEMORY button ©
DISPLAY MODE button ©
[5 |DOLBY HX PRO button © ®
6] DOLBY NR (noise reduction/MPX FILTER switch
00
MONITOR switch D
INPUT switch ©
[9 |PEAK PROGRAM METER
REC (recording) LEVEL control O €
[11] PHONE (headphones)LEVEL control
[12] HEADPHONES jack (stereo phone jack)
[13] REC EQ CAL (recording equalizing calibration)
switch (LOW, NORMAL, HIGH)
REC (recording) LEVEL control for calibration O
[15] BIAS (bias adjust) control Y Y ®
CALIBRATION button ® ®
[17] Cassette holder
A OPEN/CLOSE button
[19] Tape operation buttons and indicators
<< (rewind) button
@ (stop) button
» (play) button and indicator
pp (fast-forward) button
@ REC (record) button and indicator
H PAUSE button and indicator
O REC MUTE (record muting) button @
[20] AMS (Automatic Music Sensor) buttons ©
[21] Timer switch © © ®
Playing back a Tape
Set the amplifier's function to tape monitor.
To stop playback Press A.
23
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U
To stop for a moment|Press 11.
during play To restart playback, press El or ».
To advance the tape ¡Press pm.
To rewind the tape |Press «tq.
Insert the cassette with the side to be played facing
outward.
OPEN/CLOSE
A
©
2 Select the Dolby NR system.
DOLBY NR
( M
MPX FILTER
3 Select tape monitor
MONITOR
SOURCE
2 TAPE
4 Start playback
How to use DOLBY NR switch
Set the DOLBY NR switch to the same position (B, C, or
OFF) as was used when recording the cassette.
Use the DISPLAY MODE button to select the display
mode
You may choose among three display modes by pressing
the DISPLAY MODE button: (1) all indications are
displayed; (2) only the linear counter is displayed; or (3)no
display.
What is Dolby NR system?
The Dolby NR (noise reduction) system reduces tape hiss in
low-level, high-frequency signals. The system boosts these
signals in recording and lowers them in playback.
Is it necessary to set a switch for the tape type being used?
No. Because an automatic tape type detection system is used.
This system adjusts the equalization and bias current setting
to the optimum levels according to the type of cassette
detected, NORMAL (TYPE 1), CrO, (TYPE Il), or METAL (TYPE
IV). When the cassette is inserted, the corresponding tape type
will be displayed.
The TIMER switch must be set to OFF because...
Otherwise, when the power is turned on, recording or playback
will start automatically in a few seconds.
To change to recording mode during playback
Keeping 9» pressed, press @. The unit immediately switches
from playback to recording without stopping the tape. This is
useful when editing previously recorded material.
For headphone listening
Connect the headphone plug to the PHONES jack. Listening
level can be controlled with the PHONE LEVEL control.
To start operations while the cassette holder is open
Operations may be started while the cassette holder is open.
For example, when p= is pressed while the cassette holder is
open, the cassette holder will close and playback will start.
Similarly, pressing «+ в», ща вы, ог II while the cassette
holder is open will close the cassette holder and start the
respective operation.
Note
The Dolby HX PRO System is effective only during recording,
and not during playback.
Locating the Beginning of a Selection during Playback
— Automatic Music Sensor (AMS)
E]
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HD Oe QD
— J
To locate the beginning To locate the beginning
of the next selection: of the selection being
played:
The indicator on the » button starts flashing,
and playback starts when the unit locates the
beginning of the selection.
What is the AMS?
The AMS detects the blank space between selections and
locates the beginning of a selection during playback. To
assure correct operation of this function, there must be a
blank of 4 seconds or longer between selections. Use the
record muting function to insert a blank space when recording.
H the bi or .a-a button is pressed immediately before the
following selection
The AMS may skip the next selection and locate the beginning
of the one which follows it.
The AMS may not operate
*e |f there is noise in the space between selections.
* |f the space is less than 4 seconds long.
The AMS will treat the following as bianks:
* a long pause in the music
* a passage of low frequencies or very low volume
* a gradual increase or decrease in volume
Playing Back Automatically
After Fast Winding— Auto Play
Locating a Desired Position
Using the Counter Memory Play
I |
090 0)
HOO © @
| 124 if MEMORY is displayed,
LET | press the MEMORY
button to turn it off.
While holding down +4,
press pe.
After the tape is
completely rewound,
I the unit will automatically
start playback.
|
ооо С)
ODO eB
1 At the desired point. 2 MEMORY
O
RESET Wu
O _
{5 The desired point is
memorized.
Notes on Cassettes
To return to the desired point:
> IE) While holding down «4,
Ъ press ».
The tape is rewound to 0.00 and playback starts.
If you press only the «Hd button, the tape will be
rewound and the unit will stop at 0.00(Memory stop).
To protect a recording on To recover a cassette for
side A or B recording
Break out the respective tab. Cover the respective slot
with tape.
Side A Р
© Tab for
side A
Tab for
side B
“O
When using TYPE II (CrQ,) ог TYPE IV (metal) cassettes
Be careful not to cover the detector slots which are
necessary for automatic tape type detection.
TYPE ‘I (CrO,) TYPE IV (metal)
wo EE
S 4
Detector slots
Detector slots
Cassette care
s Avoid touching the tape surface of a cassette, as any dirt or
dust will contaminate the heads.
* Keep cassettes away from equipment with magnets, such as
speakers and amplifiers, as erasure or distortion on the
recorded tape could occur.
* Do not expose cassettes to direct sunlight, extremely cold
temperatures or moisture.
The accuracy of the counter
This counter is not a digital clock, and thus the indicated
number will not exactly equal the actual elapsed time. The
difference between the number and the elapsed time will vary
depending on the type of tape being used. This counter has
been designed using only cassette tapes as a standard.
C80 (thin hub)
C54 (thin hub)
C46 (thick hub)
C60, C90 (thin hub) C46 (thin hub)
Minute — 1 0 +1 +2 +3
The counter indication is less The counter indication is more
than the actual tape running time. than the actual tape running time.
Note on memory play/stop
In actuality, the tape is rewound to slightly short of 0.00.
Note on the counter
If necessary, check the accuracy of the counter when using
cassette tapes other than Sony's or tapes of a special length.
Do not turn off the power while using the counter
Turning the power off and then on again resets the counter to
0.00.
Recording on Tape
(TIMER—OFF |
24
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—
63 1 5
Insert the cassette with the side to be recorded facing
outward.
OPEN/CLOSE
A
— CJ
E A ' y
CIBER) e ORO
Select the Dolby NR
DOLBY NR
2 system or Set to MPX FILTER when
B
recording FM broadcasts
Q с with Dolby NR.
MPX FILTER
С
3 > (2) | = | ° |
The unit will enter recording pause mode.
4 Play the program source to be recorded.
To record the CD program source through the CD DIRECT
input terminal, set INPUT to CD DIRECT.
5 Adjust the recording level
REC LEVEL (see page 10).
6 To start recording,
©
To stop recording, press №.
Using the HX PRO button
Through the use of the HX PRO button, you can turn the
Dolby HX PRO function on or off as you like. Use the
MONITOR switch to compare the effects of the function.
Regarding CD direct input
Connecting a CD player directly to the CD DIRECT
terminals will result in a higher quality recording.
However, when the INPUT switch is set to CD DIRECT,
the MPX filter are rendered inoperative.
It playback starts instead of recording
The cassette tab has been removed. To record on this
cassette, cover the hole with plastic tape. (See page 8.)
The TIMER switch must be set to OFF because...
Otherwise, when the power is turned on, recording or playback
will start automatically in a few seconds.
To start recording while the cassette holder is open
If you press the REC @ button while the cassette holder is
open, the holder will close automatically and the unit will
switch to recording standby mode. This function allows you to
start recording at a moment’s notice.
How to check the total recording time of a tape
1 Press the RESET button at the beginning of a tape to reset
the counter to 0.00.
2 Press pm» to fast forward the tape to the end. The number on
the counter shows the approximate recording time.
To check the approximate remaining recording time on the
tape
1 Press the RESET button to reset the counter to 0.00.
2 Advance the tape to its end using pp.
The number on the counter shows the approximate time
remaining on the tape.
When recording FM broadcasts with Dolby NR
Set the MPX FILTER switch to ON (the “FILTER” indicator will
be displayed) when you record FM broadcasts with Dolby NR.
If the switch is set to ON, the MPX filter activates to cut off
any remnants of the 19kHz stereo carrier and 38kHz subcarrier
signals, which may otherwise interfere with proper operation of
the Dolby noise reduction.
However, setting this switch to ON is not a must because
almost all high-performance tuners incorporate such filters
which adequately remove those signal components from the
output.
So, set the switch to ON only if the tuner is not equipped with
this filter or the equipped filter is insufficient (if you notice
sound degradation when recording with Dolby NR).
10
Recording on Tape
Adusting the Recording Level
Adjust the REC LEVEL control so that the highest signal
levels will cause the meter segments just before the red
line (saturation range) to light up.
The saturation level differs according to tape types. When
a cassette is inserted, segments of red indicators will
light up to show the saturation range for the tape type
inserted.
Saturation level of TYPE | (normal)
and TYPE Il (CrO,) tapes
Saturation level of
TYPE IV (metal) tapes
E . 40 30 20 10 4 o 2 4 6
L
PRI
R — |
Ovu O0 к
TYPE I
Saturation range
Tips on recording level adjustment
* Adjust the recording level as high as possible without
causing distortion in the recorded sound.
If the recording level setting is too high (exceeding the
saturation level), the recording will be distorted; if it is
too low, the tape will produce a hissing sound.
e If the program source to be recorded has many high-
frequency signals, as in the case of digital sources
such as compact discs and PCM, set the level to a
relatively low position.
Monitoring the Recorded Sound
As this unit has three separate heads for recording,
playback and erasure, you can check the quality of a
recorded sound by comparing it with the input signal of a
program source.
While recording, use the MONITOR switch to check that
there is no distortion due to excessive level settings or
sound degradation due to head contamination.
How to use the MONITOR switch
To listen to the input signal before recording, set
MONITOR to SOURCE.
To listen to the recorded sound from the tape, set
MONITOR to TAPE.
MONITOR switch setting and signal flow
MONITOR
switch Signal flow
setting
Band REC LEVEL
SOURCE Recording —<——© LINE IN
SOURCE head SOURCE (CD DIRECT IN)
(В a LINE OUT
TAPE
Playback head HEADPHONES
The signal to be recorded can be
monitored.
Band REC LEVEL
Recording -«—) LINE IN
TAPE head CD DIRECT IN
SOURCE, _ SOURCE О ( )
TAPE
Playback head HEADPHONES
The recorded signal can be monitored.
What is the Dolby HX PRO System?
The Dolby HX PRO system provides improved linearity in
high-range frequency response during recording. Tapes
recorded with this system retain the same high quality
even when played back on other tape decks.
High
315 Hz
|
|
Distortion | 6.3 kHz
output |
| 10 kHz
I
|
|
315 Hz distortion
t Bias current > High
Established bias current
Inserting a Blank Space
during Recording— Record Muting
Using the O button during recording, you can insert a
blank space on a tape to help you locate the selection
later (for details on the AMS function, see page 7). In
addition, this function enables you to eliminate unwanted
input by replacing it with a blank space.
[o] | al
2
As shown above, characteristics such as output level and
distortion differ widely according to the bias (high-
frequency) current. In conventional systems, the bias
current is susceptible to variations in certain recording
signals (see diagram below) which can cause fluctuations
in frequency response, distortion, or other unwanted
characteristics.
High
Fluctuation
Qutput
Frequency ——> High
With the Dolby HX PRO system, the effective bias
amount added to the bias current is controlled in
millisecond units to greatly reduced distortion, improving
linearity in high-range response and ensuring high-
intensity recording with minimal distortion and noise.
1 while recording, press O.
If you want the blank to be four seconds long, press
©.
The @ indicator starts to flicker. While the indicator
is flickering, no incoming signals are recorded on the
tape. Then, after four seconds, the II indicator lights
up and the unit enters recording pause mode.
2 Press II to resume recording.
If you want the blank to be longer than four seconds
Keep the O button pressed for as long as you want.
After four seconds, the flickering speed of the @
indicator will increase. When you release the Q button,
the al indicator lights up and the unit enters the pause
mode.
11
12
Making an Optimum Recording According to the Tape Type
Bias and Recording Level Calibration
There are many different types of cassettes on the market,
each with varying magnetic properties. Although your unit is
equipped with the ATS (Automatic Tape Selection) system
which sets the appropriate equalization characteristics and
bias current for each tape type, an additional calibration
adjustment can often produce even better results. Use the bias
current and recording level calibration function to obtain the
optimum recording conditions that will bring out the best in
every tape.
CALIBRATION
BIAS REC LEVEL
a ON a OFF
—20 +20 —3 +3
Adjusts bias current
within +20%.
Adjusts recording level
within +3 dB.
000
DOO ео ©
—J
2
3 1 2
1 insert the cassette to be used for recording.
OPEN/CLOSE
a =
LJ
000)
a D @ O e 7
——
Bias calibration
Choosing the optimum bias current for a tape ensures
minimum distortion and flat frequency response. Lowering the
bias current boosts high-frequency response, but also resuits
in higher distortion. Raising the bias, on the other hand,
reduces distortion, but also dampens high-frequency response.
Optimum bias is thus obtained when the bias current and
high-frequency response are well balanced.
2 Press the CALIBRATION button.
FF CALIBRATION
X21 ON Llorr
RECCAL | HIGH
REC EQ NORM
BIAS
High-frequency o SN
response rises
120
High-frequency
response drops
_ | Bias reduced (—)
m
=
+ E
= .E
2% ON
35 a
© = | Ваз increased (+)
Frequency in Hz
e |f the bias current is higher or lower than the optimum
setting for a certain tape, the frequency response changes as
shown in the chart above. Changing the bias can thus be
used to tailor the response to your liking, for example by
slightly emphasizing the upper or lower end.
The frequency response of metal tapes is much less affected
by changes in the bias current than other tape types. With
some tapes, the adjustment range of this deck (+20%) may
therefore not be sufficient to cover every possible
requirement.
Recording level calibration
Even when the recording level is adjusted correctly, using a
tape with low sensitivity will result in a low playback level.
The REC LEVEL calibration control allows you to
compensate for sensitivity differences among tapes to
equalize both recording and playback levels. This is
especially important when using the Dolby NR system, since
it is most effective when recording and playback levels are
the same.
3 Activate the recording test tones:
| >= le“.
+
+
= |
Playback level for an 8-kHz signal
1 REC CAL
рр) ! HIGH
i
REC EQ NO
Playback level for a 400-Hz signal
It takes 2 to 3 seconds to stabilize the level of test tones.
4 Adjust the bias control until both meters indicate equal
playback levels,
A high reading on the upper meter indicates a low bias
current.
REC CAL
EE — — — EE и НН =?
REC EG NORM
BIAS
9
-20 +20
An equal reading on both meters indicates the optimum
bias current condition. |
]
REC cac) | 1
| i
| REC EQ NORM
_æ
BIAS
р
20 120
A low reading on the upper meter indicates a high bias
current.
REC CAL '
REC EQ NORM
5 Adjust the REC LEVEL calibration control until both
meters reach the recommended level (REC CAL)
REC LEVEL
3 13
>
(recommended level
REC CAL I
REC EQ NORM 4
The bias current is now adjusted to the optimum level and
the tape sensitivity compensation has been set. Press Mi,
then set the CALIBRATION button to OFF. Rewind the
tape and start the actual recording.
Note
* The sound cannot be monitored during the calibration
operation.
Recording Equalization Calibration
Although bias current and equalization are automatically
set by the Automatic Tape Selection (ATS) function for
the tape being used, you can use the REC EQ CAL
switch to change the recording characteristics according
to the nature of the source material or to compensate for
the particular characteristics of the tape.
During Recording
To modify the recording characteristics, set the REC EQ
CAL switch as follows:
REC EQ CAL
LOW NORMAL HIGH
To emphasize the higher
frequencies in recordings
For normal recordings
-— 10 dampen the higher
frequencies in recordings
During Bias Calibration
To verify changes in the playback level of the 8-KHz test
tone level and the recording characteristics of the higher
frequencies, set the REC EQ CAL switch as follows:
REC EQ CAL
LOW NORMAL HIGH
To raise the playback level
To lower the playback level
You may also use this switch in conjunction with the BIAS control to
modify the high-frequency characteristics.
13
Timer-Activated Playback
and Recording
By connecting an optional timer, recording or playback
can be performed automatically at a preset time.
+ | [
A > с | 5 @ a @ O
[+] - JA] еб В
o Tuner
Ÿ to an AC
outlet
rg
Amplifier -_
to the
Ÿ switched
outlet
2 — Timer
to a wali
outlet
1 Insert a cassette and prepare the unit for
playback or recording.
For playback | Follow steps 1 through 3 on page 6.
For recording | Follow steps 1 through 6 on page 9.
2 Set the timer to the desired time.
Power to the tape deck will be cut off.
3 Set the unit's TIMER switch to PLAY or REC.
Playback or recording will start at the preset time.
When the timer-activated operation is completed
Set the TIMER switch on the unit to OFF. If the TIMER
switch is left at REC, the unit will automatically enter the
recording mode the next time the power is turned on,
and the previously recorded material may be erased.
Keep the POWER switch depressed on the unit
When the timer is set, the power to the unit will be cut
off. However, you must leave the POWER switch
depressed to start timer-activated operation.
14
Maintenance
Cleaning the Heads and Tape Path
Clean all surfaces over which the tape travels after every
10 hours of operation. Otherwise, the following symptoms
might appear.
— low-quality sound
— a decrease in sound level
— excessive wow, flutter or dropout
— incomplete erasure
— recording cannot be made
To obtain high-quality recorded sound, cleaning before
every recording is recommended.
Capstan Cotton swab
A — | “
Erase head /
Pinch roller Pinch roller
Fs
Recording head:Playback head
„ей
U_
— 11
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— 1]
—
Press 4 to open the cassette holder. Grasp the front
of the holder on both sides and gently lift to remove it.
2 Wipe the heads, the pinch rollers and the capstans
with a cotton swab slightly moistened with tape
cleaning fiuid or aicohol.
3 Replace the cassette holder.
After cleaning the heads and tape path, do not insert a
cassette until the areas cleaned are completely dry.
Demagnetizing the Heads
After every 20 or 30 hours of use, or when you notice
hiss and/or loss of high frequencies, the residual
magnetism built up on the heads should be removed.
1 Turn off the power.
2 Demagnetize the heads with any commercially
available demagnetizer.
Refer to the instruction manual of the demagnetizer for
detailed instructions.
Cleaning the Cabinet
Clean the cabinet, panel and controls with a soft cloth
siightly moistened with a mild detergent solution.
Important
Do not use any type of abrasive pad, scouring powder or
solvents such as alcohol or benzine.
Specifications
Recording system 4-track 2-channel stereo
Bias AC bias
Heads Erase head x 1 (S & F head)
Recording head x 1 (LA head)
Playback head x 1 (LA head)
Motors Capstan motor x 1 (Direct drive linear
tolk BSL motor)
Reel motor x 1 (DC motor)
Wow and flutter 0.024% WRMS (NAB)
Fast-forward and rewind time
Approx. 90 sec. (with C-60 cassette)
Frequency response (DOLBY NR OFF)
TYPE IV cassette | 15— 22,000 Hz (+3 dB)
(Sony METAL-ES) | 15— 16,000 Hz (0YU recording)
TYPE || cassette | 15— 20,000 Hz (+3 dB)
(Sony UX-S)
TYPE | cassette
15 — 18,000 Hz (+3 dB)
(Sony HF-5)
Signal-to-noise ratio (NAB, at peak level)
CTYPE
Dolby NR switch OFF B-TYPE
Cassette ON ON
(Sony METALES) 61dB | 70dB | 76dB
Sony их) 59dB | 68 ав | 74dB
¿Sony HFS) 57dB | 66 dB 72 dB
Total harmonic distortion
Inputs
0.8% (with Sony METAL-ES cassette)
Line inputs
{phono jacks)
Sensitivity 77.5 my (—20 dB)
Input impedance 50k ohms
CD DIRECT input
Input impedance 50k ohms
Outputs
Line outputs
{phono jacks)
Rated output level | 0.44 V (—5 dB) at a
load impedance
47k ohms
Load impedance Over 10k ohms
Headphones
(stereo phone jack)
0-3 mW at a load
impedance of 32
ohms
Output level
General
Power requirements
Power consumption
Dimensions
Weight
Supplied accessory
Optional accessory
120 Y AC, 60 Hz
31 W
Approx. 470 x 140 x 380 mm {w/h/d)
(1854 x 554 x 15 inches)
including projecting parts and controls
Approx. 11.7 kg (25 Ibs 13 02)
Audio connecting cord {2)
Screws (8)
Wireless remote control unit RM-J701
Design and specifications subject to change without notice.
15
Troubleshooting Guide
The following trouble checks will help you correct the most common problems encountered with your tape deck. Should any
problems persist after you have made these checks, consult your nearest Sony dealer. Before proceeding with these trouble
checks, first check these basic points:
* The power cord is firmly connected.
* Amplifier connections are firmly made.
*e Heads, capstans and pinch rollers are clean.
* The amplifier controls and switches are set correctly.
Symptom
‘Cause
Remedy
The function buttons do not activate.
Cassette holder is not fully closed.
Close the holder completely.
Button pressed immediately after power
was turned on.
Wait until blinking of 11 indicator stops.
Playback or recording begins when the
power is turned on.
The TIMER switch is not set to OFF.
Set the TIMER switch to OFF.
@ button does not activate.
(@ indicator does not light up)
Tab has been removed from the cassette.
Cover the hole with plastic tape (page 8).
Tape stops before being fully rewound.
Tape is slack.
Take up the tape slack.
Cassette shell is deformed.
Use another cassette.
The Memory function is activated.
Press the MEMORY button to deactivate
the function.
Excessively loud tape transport noise
during fast winding.
This depends on the cassette used and
is not a problem.
The cassette holder will not close.
The power has been turned off while the
cassette holder is open.
Turn the power on and close the
cassette holder.
Symptom
Cause
Remedy
Recording or playback cannot be made
or there is a decrease in sound level.
Heads are either dirty or magnetized.
Clean or demagnetize the heads.
Improper connection.
Make connections properly.
Improper setting of the amplifier controls.
Set the amplifier controls to the
appropriate positions.
Excessive wow, flutter or dropout.
Head, capstan or pinch roller is dirty.
Clean in accordance with instructions
shown on page 14.
Incomplete erasure.
Erase head is dirty.
Clean the erase head.
Increased noise or poor reproduction in
high frequencies.
Head is magnetized.
Demagnetize the head.
Unbalanced tone in high frequencies.
Improper setting of the DOLBY NR
switch.
When playing back, set the switch to the
same position used in recording.
The unit is placed near a television set.
Move the unit away from the television
set.
The desired selection cannot be located
even though you activate the AMS.
There is noise in the space between
selections.
The space is less than 4 seconds long.
Rerecord the tape if you can, and insert
a blank space of 4 seconds using the O
button.
The pi Or Fg button is pressed
immediately before or after the beginning
of the following selection.
Playback may begin in the middle of the
selection when the AMS is activated.
The following will be treated as blanks:
—a passage of low frequencies or very
low volume
—a gradual increase or decrease in
volume.
Press the pm» or «q button.
~~ Symptom © Cause Remedy
Hum noise.
The unit is stacked on or under the
amplifier.
Separate the unit.
Noise is recorded.
Recording was made near equipment such
as a television set or a color monitor, and
interference has affected the recording on
the tape and the Dolby NR system.
Move the unit away from the television set
or color monitor.
Sony Corporation Printed in Japan