Sony TC-TX101 User manual
– 1 –
Model Name Using Similar Mechanism TC-TX313
TapeTransport MechanismType
TC-TX101
MICROFILM
AEP Model
UK Model
E Model
Tourist Model
SERVICE MANUAL
Recording system 4-track 2-channel stereo
Frequency response (DOLBY NR OFF)
50 - 14,000 Hz (±3 dB),
using Sony TYPE I
cassettes
50 - 15,000 Hz (±3 dB),
using Sony TYPE II
cassettes
Dimensions Approx. 142 × 125 × 235
mm (w / h / d)
incl. projecting parts and
controls
Mass Approx. 2 kg
Design and specifications are subject to change
without notice.
• This set is the optional stereo cassette
deck that can be used only with section
HCD-101 (AEP, UK model) /
CMT-101 (E,Tourist model).
STEREO CASSETTE DECK
Dolbynoise reduction manufactured under license from Dolby Labo-
ratories Licensing Corporation.
“DOLBY” and the double-D symbol aare trademarks of Dolby
Laboratories Licensing Corporation.
SPECIFICATIONS
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TEL 13942296513 QQ 376315150 892498299
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– 2 –
TABLE OF CONTENTS
1. SERVICE NOTE
1-1. Supplying Power During Servicing ....................................... 3
2. GENERAL
Parts and Controls...................................................................... 4
3. TEST MODE
3-1. Checking the Items of Test Mode .......................................... 5
4. DISASSEMBLY
4-1. Top Cover .............................................................................. 6
4-2. Front Panel............................................................................. 6
4-3. Mechanism Deck Section ...................................................... 7
4-4. PC Board Section................................................................... 7
4-5. Main Board ............................................................................ 8
4-6. Amplifier Board..................................................................... 8
4-7. Front Board ............................................................................ 9
4-8. Lever ...................................................................................... 9
4-9. Tension Spring ..................................................................... 10
4-10.Housing................................................................................ 10
4-11.Chassis ................................................................................. 11
4-12.Motor (A)/(B) Assy ............................................................. 11
4-13.Head Plate ............................................................................ 12
4-14.Pinch Roller Assy ................................................................ 12
4-15.Bracket (Head Unit)............................................................. 13
5. MECHANICAL ADJUSTMENTS................................. 14
6. ELECTRICAL ADJUSTMENTS .................................. 14
7. DIAGRAMS
7-1. Printed Wiring Board –Motor Section–............................... 17
7-2. Schematic Diagram –Motor Section–.................................. 18
7-3. Printed Wiring Boards –Main Section–............................... 20
7-4. Schematic Diagram –Main Section– ................................... 23
7-5. Printed Wiring Boards –Front Panel Section–..................... 27
7-6. Schematic Diagram –Front Panel Section– ......................... 29
7-7. IC Pin Description ............................................................... 31
8. EXPLODED VIEWS
8-1. Chassis Section .................................................................... 33
8-2. PC Board Section................................................................. 34
8-3. TCM Assy Section............................................................... 35
9. ELECTRICAL PARTS LIST .......................................... 36
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINE
WITH MARK !ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
Notes on Chip Component Replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
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– 3 –
P707, 909
PFJ-1
(Power Supply jig)
POWER SW Connector Cable 17P
(supplied with set)
set
Conversion Board
(J-2501-144-A)
SYSTEM CONTROL
Power Function
SECTION 1
SERVICE NOTE
1-1. SUPPLYING POWER DURING SERVICING
This equipment cannot operate without using a separate power
supply. Connect this set to the HCD-101.
To apply power set the SYSTEM POWER switch of HCD-101.
When other units are not available use the PFJ-1 power supply jig.
When using the PFJ-1, press the POWER switch of the conversion
board to turn on the power.
•Connection Diagram
*
When checking the recording
function of TC-TX101, select
any function other thanTAPE
using the Function key of
the conversion board before
check.
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TEL 13942296513 QQ 376315150 892498299
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– 5 –
SECTION 3
TEST MODE
3-1. CHECKINGTHE ITEMS OFTEST MODE
The set allows you to check the items of the test mode although this
may not be directly related with the adjustment.
1Setting/Releasing the Test Mode:
1) Setting
With power OFF, short between test pin 1and pin 2of
TP1 on the MAIN board. (See page 16.)
Then, turn power ON to enter the test mode.
2) Releasing
Open between pin 1and pin 2of TP1.
2Items of Test Mode
1) Memory Stop
1-1) In side A record mode, press the REW ( 0) button.
Thetapeisrewind to the startpointofrecording and stopped.
1-2) In side B record mode, press the FF ( )) button.
Thetapeisrewind to the startpointofrecording and stopped.
2) Memory Play
2-1) In side A record mode, press the FWDAuto Play
( ”+ 0) buttons simultaneously. The tape is rewind to
the start point of recording and FWD played.
2-2) In side B record mode, press the REVAuto Play
( “+ )) buttons simultaneously. The tape is rewind to
the start point of recording and REV played.
3) All LED Flickering
When no tape is inserted, all LED indicators are flickering.
4) Aging Operation
When tape with record erase preventing claw is inserted for
both sides A and B, enter the aging operation start command
by pressing pand CD SYNC simultaneously. The system
will change the direction to one side and perform the
following operations:
1Rewind in REW mode until side A of tape is stopped.
2Playback tape in FWD mode for 1 minute.
3Pause mode.
4Record tape for 3 minutes.
5Forward tape in FF mode to the end of side A of tape.
6Shut off and switch to side B.
7Playback tape in REV mode for 1 minute.
8Pause mode.
9Record tape for 3 minutes.
!º Forward tape in FF mode to the end of side B of tape.
!¡ Shut off and switch to side A.
!™ Repeat the procedure from 2to !¡.
!£ Pressing the STOP ( p) button will release the set from
these operations.
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TEL 13942296513 QQ 376315150 892498299
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– 6 –
SECTION 4
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
4-1.TOP COVER
4-2. FRONT PANEL
3
front panel
2
BVTP 2.6X8
4
BVTP 3X12
7
claws
8
CN06
9
sub panel
6
BVTP 3X8
5
BVTP 3X12
1
BVTP 3X8
4
top cover
1
screws (case 3 TP2)
3
BVTP 3X8
2
screws (case 3 TP2
)
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TEL 13942296513 QQ 376315150 892498299
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– 7 –
4-3. MECHANISM DECK SECTION
4-4. PC BOARD SECTION
3
BVTP 3X8
1
flexible board
4
mechanism deck section
2
BVTP 2.6X6
3
BVTP 3X8
5
PC board sectio
n
2
BVTP 3X10
1
BVTP 3X10
4
CN05
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TEL 13942296513 QQ 376315150 892498299
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– 8 –
4-5. MAIN BOARD
4-6. AMPLIFIER BOARD
1
BVTP 3X8
3
CN02
(Remove the
solder.)
2
BVTP 3X8
7
MAIN boar
d
5
CN07
4
CN03
(Remove the solder.)
6
CN04
1
BVTP 3X8
2
BVTP 3X8
3
AMPLIFIER boar
d
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TEL 13942296513 QQ 376315150 892498299
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– 9 –
4-7. FRONT BOARD
4-8. LEVER
1
BVTP 3X8
4
BVTP 3X8
2
BVTP 3X8
3
BVTP 3X8
5
FRONT boar
d
6
PLAY button
7
8
5
9
6
Turn the loading motor
and down the cassette
holder.
2
tape guide (L)
1
BVTP 3X8
4
tape guide (R)
3
BVTP 3X8
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TEL 13942296513 QQ 376315150 892498299
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– 11 –
4-11. CHASSIS
4-12. MOTOR (A) / (B) ASSY
1
3
4
motor (B) assy
2
motor (A) assy
1
2
5
belt (A)
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belt (B
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3
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TEL 13942296513 QQ 376315150 892498299
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– 12 –
4-13. HEAD PLATE
Note : On install, set the portions Aand B.
4-14. PINCH ROLLER ASSY
B
3
2
A
1
2
3
pinch roller assy (R)
1
4
5
6
pinch roller assy (F)
pinch roller assy (F) pinch roller ass
y
(
R
)
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TEL 13942296513 QQ 376315150 892498299
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– 14 –
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback/erase head pinch roller
rubber belts capstan
idlers
2. Demagnetize the record/playback/erase head with a head
demagnetizer. (Do not bring the head demagnetizer close to the
erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Check
Mode Torque Meter Meter Reading
35 – 80 g • cm
FWD CQ-102C (0.49 – 1.11 oz • inch)
FWD 1 – 7 g • cm
Back tension (0.014 – 0.097 oz • inch)
35 – 80 g • cm
REV CQ-102RC (0.49 – 1.11 oz • inch)
REV 1 – 7 g • cm
Back tension (0.014 – 0.097 oz • inch)
more than 40 g • cm
FF, REW CQ-201B (more than 0.56 oz • inch)
SECTION 6
ELECTRICAL ADJUSTMENTS
SECTION 5
MECHANICAL ADJUSTMENTS
PRECAUTION
1. The adjustment should be performed in the publication.
(Be sure to male playback adjustment at first.)
2. The adjustments andmeasurementshouldbeperformedfor both
L-CH and R-CH.
• Switch position
DOLBY NR switch : OFF
DIRECTION switch : A
Standard Input Level
Input terminal TAPE IN
source impedance 10 kΩ
input signal level 0.49 V (– 4 dB)
Standard Output Level
Output terminal TAPE OUT (L-CH)
load impedance 47 kΩ
output signal level 0.49 V (– 4 dB)
TestTape
Type Signal Used for
P-4-A100 10 kHz, –10 dB Azimuth Adjustment
P-4-L300 315 Hz, 0 dB PB Level Adjustment
WS-48A 3 kHz, 0 dB Tape Speed Adjustment
0 dB = 0.775 V
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– 15 –
TAPE OUT L-CH : CN05 pin
2
(MAIN board) R-CH : CN05 pin
4
TAPE OUT L-CH : CN05 pin
2
(MAIN board) R-CH : CN05 pin
4
Record Bias Adjustment
Setting : Set to the TEST mode. (See page 5.)
Procedure :
1. Connection for recording :
speed checker
or
frequency counter
47 k
Ω
set
test tape
WS-48A
(3 kHz, 0 dB)
Tape Speed Adjustment
Procedure :
1. Connect the speed checker or frequency counter as shown below
and set FWD playback mode.
2. Adjust the capstan motor (M1) volume so that the reading on the
speed checker or frequency counter falls within the following
adjustment value.
Adjustment Value : normal speed
Speed checker Frequency counter
– 3 to + 3 % 2,910 to 3,090 Hz
Confirm that the deviation between tape top and tape end is within
3%.
Adjustment Location : Capstanmotor (M1)volume(Seepage16.)
Sample Value ofWow and flutter
W. RMS (JIS) within 0.3%
(test tape : WS-48A)
Playback Level Adjustment
Procedure :
1. Connect the speed checker of frequency counter as shown below
and set FWD playback mode.
2. AdjustSFR03(L-CH)andSFR04 (R-CH)onAMPLIFIERboard
so that the reading on the level meter falls within the following
adjustment value.
Adjustment Value :
TAPE OUT level Level difference
between channels
– 4 ±2 dB (0.39 to 0.62 V) within 2 dB
Confirm that the TAPE OUT level does not change even if Playback
and Stop operation is repeated several times.
Adjustment Location : AMPLIFIER board (See page 16.)
level meter
47 k
Ω
set
test tape
P-4-L300
(315 Hz, 0 dB)
2. Connection for playback :
3. In the connection of item 2, playback the signal recorded in the
connection of item 1, confirm that the reading on the level meter
falls within the following adjustment value.
4. If these levels do not adjustment value, adjust SFR01 (L-CH)
and SFR02 (R-CH) on AMPLIFIER board to repeat items 1
and 2.
AdjustmentValue :Difference of playback output of 10 kHz to
playback output of 315 Hz : 0 ±0.5 dB
Adjustment Location : AMPLIFIER board (See page 16.)
Record Level Adjustment
Setting : Set to the TEST mode. (See page 5.)
Procedure :
1. Connection for recording :
2. Connection for playback :
3. In the connection of item 2, playback the signal recorded in the
connection of item 1, confirm that the reading on the level meter
falls within the following adjustment value.
4. If these levels do not adjustment value, adjust SFR11 (L-CH)
and SFR12 (R-CH) on MAIN board to repeat items 1 and 2.
AdjustmentValue :Playback output level of 315 Hz :
– 4 ±2 dB (0.39 to 0.62 V)
Adjustment Location : MAIN board (See page 16.)
level meter
47 k
Ω
set
recorded portion
AF OSC
attenuator 10 k
Ω
set
600
Ω
blank tape
CS-123
AF OSC
attenuator 10 k
Ω
set
600
Ω
blank tape
CS-123
level meter
47 k
Ω
set
recorded portion
TAPE IN L-CH : CN05 pin
1
(MAIN board) R-CH : CN05 pin
5
1) 315 Hz
2) 10 kHz 43.6 mV (– 25 dB)
TAPE OUT L-CH : CN05 pin
2
(MAIN board) R-CH : CN05 pin
4
TAPE IN L-CH : CN05 pin
1
(MAIN board) R-CH : CN05 pin
5
315 Hz, 0.49 V (– 4 dB)
TAPE OUT L-CH : CN05 pin
2
(MAIN board) R-CH : CN05 pin
4
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TEL 13942296513 QQ 376315150 892498299
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– 16 –
IC02
IC03
CN05
TP1
TEST MODE
TAPE OUT (L-CH : pin
2
, R-CH : pin
4
)
TAPE IN (L-CH : pin
1
, R-CH : pin
5
)
SFR04
PLAYBACK
LEVEL ADJ
(R-CH)
SFR03
PLAYBACK
LEVEL ADJ
(L-CH)
SFR01
RECORD BIAS
ADJ (L-CH)
SFR12
RECORD LEVEL
ADJ (R-CH)
SFR11
RECORD LEVEL
ADJ (L-CH)
SFR02
RECORD BIAS
ADJ (R-CH)
M1
CAPSTAN
/ REEL
MOTOR
TAPE
SPEED
ADJ
M2
LOADING
MOTOR
MECHANISM
DECK
Adjustment Location :
– MAIN board (component side) – – AMPLIFIER board (component side) –
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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Other manuals for TC-TX101
1
Table of contents
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