Sony TCM-23DV User Manual

TCM-20DV/21DV/

22DV/23DV

SERVICE MANUAL

Ver 1.0 2000. 02

Photo: TCM-20DV

SPECIFICATIONS

Recording system

2-track 1 channel monaural

Tape speed

4.8 cm/s or 2.4 cm/s

Frequency range

250 - 6,300 Hz using nomal (TYPE
I) cassette (with REC TIME switch
at “NORMAL”)

Speaker

Approx. 3.6 cm (1

Power output

250 mW (at 10 % harmonic
distortion)

Input

Microphone input jack (minijack)
sensitivity 0.2 mV for 3 kilohms or
lower impedance microphone

Output

Earphone jack (minijack) for 8 - 300
ohms earphone

Variable range of the tape speed

From approx. +30% to –15% (with
REC TIME switch at “NORMAL”)

Power requirements

3 V DC batteries R6 (AA) × 2/

External DC 3 V power sources

Dimensions (w/h/d) (incl. projecting
parts and controls)

Approx. 112 × 36.6 × 90.3 mm

1

⁄

× 1

(4

2

Mass

Approx. 175 g (6.2 oz.)

1

⁄2 x 3 5⁄8 in.)

7

/16 in.) dia.

Supplied accessories

The instructions in this manual are for
4 models.
The TCM-20DV is the model used for
illustration purposes.

TCM- 23DV 22DV 21DV 20DV

AC power adaptor (1)
Battery charger adaptor (1)
Rechargeable batteries (2)

(NC-AA, 1.2V, 700mAh,
Ni-Cd)

Cassette tape C-90 (1)
Battery LR6 (2)
Monaural microphone (1)
Super-directional

microphone (1)
Carrying pouch (1)
Hand strap (1)

(attached to the unit)

Battery life

Sony alkaline
LR6 (SG)

Sony R6P (SR) 3 3
Sony

rechargeable
battery
(NC-AA) fully
charged (TCM­22DV only)

* Measured value by the standard of

EIAJ (Electronic Industries
Association of Japan). (Using a Sony
HF series cassette tape and playing
back with speakers)

Note

The battery life may shorten
depending on the operation of the
unit.

For maximum performance we
recommend that you use alkaline
batteries.

(Approx. hours) (EIAJ*)

Playback Recording

11 11

Model Name Using Similar Mechanism NEW
Tape Transpor t Mechanism Type MT-20DV-118

— a ——
— a ——

— a ——

——a —
——a —
——a —

a ———

——a —

aaaa

33

US Model

TCM-20DV/21DV/22DV/23DV

Canadian Model

TCM-20DV/22DV

AEP Model

TCM-20DV/21DV

E Model

TCM-20DV/23DV

Chinese Model

TCM-20DV

House Current

Connect the AC power adaptor to
DC IN 3V and to a wall outlet. The
AC power adaptor is supplied only
with the TCM-22DV. For other
models, use the AC-E30HG AC
power adaptor (not supplied). Do
not use any other AC power
adaptor.

Note

Specifications for AC-E30HG vary for
each area. Check your local voltage
and the shape of the plug before
purchasing.

Design and specifications are subject
to change without notice.

(see Fig. A- )

Polarity of
the plug

CASSETTE-CORDER

SECTION 1

SERVICING NOTES

TABLE OF CONTENTS

1. SERVICING NOTES ............................................... 2

2. GENERAL ................................................................... 3

3. DISASSEMBLY ......................................................... 4

4. MECHANICAL ADJUSTMENTS....................... 7

5. ELECTRICAL ADJUSTMENTS......................... 8

6. DIAGRAMS

6-1. Block Diagram ................................................................ 9

6-2. Printed Wiring Board ...................................................... 11

6-3. Schematic Diagram ......................................................... 13

7. EXPLODED VIEWS ................................................ 16

8. ELECTRICAL PARTS LIST ............................... 19

In this set, the S102 (POWER) detects REC/PLAYBACK on.
It is mounted on the MAIN board, and therefore the REC/PLAY­BACK on cannot be detected with the MAIN board removed.
When making an operation check and voltage check of mechani­cal deck with the MAIN board removed, fix the S102 at turn on.

– MAIN BOARD (Conductor Side) –

S102

on

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMA TIC DIA GRAMS
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.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM­POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C dur­ing repairing.

• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering
or unsoldering.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam­aged by heat.

– 2 –

• Location of Controls

VOL

Built-in mic

BATT

z REC

SECTION 2

GENERAL

EAR

MIC

VOR

This section is extracted from
instruction manual.

B PLAY

SPEED CONTROL

M FF/CUE

x STOP

m REW/

REVIEW
PAUSE

.

REC TIME

DC IN 3 V

– 3 –

• This set can be disassembled in the order shown below.

T

G

SECTION 3

DISASSEMBLY

SET

Note: Follow the disassembly procedure in the numerical order given.

CABINET (REAR), CASSETTE LID

CABINET (REAR), CASSETTE LID

9 cassette lid

7 boss

MAIN BOARD, MECHANISM DECK (MT-20DV-118)

INSTALLATION CASSETTE SPRIN

cabinet front

cassette spring

BEL

cassette lid

3 four claws

2 screw

(IB lock)

7 boss

6 Remove the six solders.

5 hand strap

4 cabinet (rear)

3 claw

1 three screws

(B1.7 × 9)

– 4 –

MAIN BOARD, MECHANISM DECK (MT-20DV-118)

5 three screws

(IB lock)

1 Remove the two solders

electret condenser microphone
(MIC101).

6 claw

7 mechanism deck

(MT-20DV-118)

1 Remove the two solders
motor (M901).

BELT

4 MAIN board

1 Remove the two solders

magnetic head (HRP901).

1 belt (capstan)

2 belt (FR)

3 screw

(M1.4)

2 screw

(1.7)

capstan belt

FR belt

pulley (FR) assy

– 5 –

motor DC

flywheel assy

INSTALLATION MAIN BOARD

On installation MAIN board, adjust to the S101 and
the S102.

screw
(1.7)

S102
(POWER)

screw
(M1.4)

MAIN board

S101 (REC/PB)

lever (REC)

– 6 –

SECTION 4

MECHANICAL ADJUSTMENTS

1. Clean the following parts with a denatured-alcohol-moistened
swab:

record/playback head pinch roller
erase head rubber belt
capstan idlers

2. Demagnetize the record/playback 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 (2.5 V) unless otherwise noted.

Torque Measurement

Mode Torque Meter Meter Reading

FWD

CQ-102C
FWD
Back Tension

FF
REW (more than 0.69 oz•inch)

CQ-201B (more than 50 g•cm)

2.16 - 4.7 mN•m
(22 - 48 g•cm)

(0.31 - 0.67 oz•inch)

0.05 - 0.29 mN•m
(0.5 - 3 g•cm)

(0.007 - 0.04 oz•inch)

4.90 mN•m

T ape Tension Measurement

Mode Torque Meter Meter Reading

FWD CQ-403C (more than 50 g)

4.90 mN•m

(more than 1.76 oz)

– 7 –

SECTION 5

r

j

)

ELECTRICAL ADJUSTMENTS

Setting:

• Supplied voltage: 2.5 V

• Switch and control position

[VOL ] control (RV101) : mechanical center

w

[PAUSE ] switch (S105) : OFF

.

[SPEED CONTROL](RV602): center click
[VOR] switch (S104) : OFF

Test T ape

Ty pe Signal Used for

P-4-A063 6.3 kHz, –10 dB Head Azimuth Adjustment

WS-48A 3 kHz, 0 dB Tape Speed Adjustment

0 dB=0.775 V

Record/Playback Head Azimuth Adjustment

Mode: playback

test tape
P-4-A063
(6.3 kHz, –10 dB)

set

EAR

Procedure:

1. Turn the adjustment scre w to obtain the maximum reading on
level meter.

Note: Several peaks may appear, but take the maximum.

2. After the adjustment, lock the adjustment screw with suitable
locking compound.

level mete

10 kΩ

+
–

ack (J102

Tape Speed Adjustment

Mode: playback

test tape
WS-48A
(3 kHz, 0 dB)

10 kΩ

set

EAR jack (J102)

frequency
counter

+

–

Procedure:

– Normal Speed –

1. Set [REC TIME] switch (S601) to NORMAL (4.8 cm/s) posi­tion, and playback the tape (WS-48A) .

2. Adjust RV601 so that frequency counter r eading becomes 3,040
Hz.

Specification values: 3,030 to 3,050 Hz

– Double Speed –

3. Set [REC TIME] switch (S601) to DOUBLE (2.4 cm/s) posi­tion.

4. Playback the tape from the beginning for two minutes, then
adjust R V603 so that frequency counter reading becomes 1,540
Hz.

Specification values: 1,535 to 1,545 Hz

Confirm that deflection of the frequency counter reading between
the beginning and the end of tape is within 1% (NORMAL: approx.

30.4 Hz, DOUBLE: approx. 15.4 Hz) .

Adjustment Location:

adjustment screw

Press the N
button.

Adjustment Location:

– MAIN BOARD (Conductor Side) –

J102 J101

RV601

Tape Speed Adjustment

(Normal Speed)

RV603

Tape Speed Adjustment

(Double Speed)

– 8 –

6-1. BLOCK DIAGRAM

TCM-20DV/21DV/22DV/23DV

SECTION 6
DIAGRAMS

J101

MIC

(PLUG IN POWER)

HRP901

(REC/PB)

HE901

(ERASE)

MIC101

MIC

S101

(REC/PB)

PB

REC

S101 (1/6)

CONTROL

S101 (4/6)

VREF

Q101

AGC

28

29

5

4

MIC IN

EQ IN

ALC
CONT

REC OUT

MIC AMP, REC/PB EQ AMP

IC101 (1/3)

MIC

AMP

EQ

AMP

ALC

REC

AMP

POWER ON

B+

PRE
OUT

PRE

REC IN

• SIGNAL PATH

: PLAY
: RECORD

VREF

OFF

+

Q111
VOR ON
SWITCH

S101 (2/6)

(REC/PB)

PB

REC

REC B+

REC B+

Q105
VOR OFF
SWITCH

POWER AMP, VOR CONTROL,REGULATOR

POW IN

11

VOR
DELAY

7

R/P
SW

23

REC/PB

VOX

IC101 (2/3)

POWER

AMP

POW OUT 1

POW OUT 2

PAUSE

LED

DRIVE

PAUSE

12

14

24

22

D101
BATT

Q112

SWITCHING

POWER ON B+

Q104

PB EQ

SWITCH

2

NF

NF

1

Q103
REC EQ
SWITCH

3

+

REC B+

REC B+

RV101

VOL

BUFFER

S104

VOR

HL

REC B+

Q102

S101 (3/6)

PB B+

(REC/PB)

PB

REC

PAUSE .

S105

OFF

ON

Q106

REC/PB

MONITOR LEVEL

SWITCHING

PB B+

SP901

(SPEAKER)

J102

EAR

S101 (6/6)

(REC/PB)

05

PB

REC

POWER ON B+

RV602

SPEED CONTROL

S601-2

REC TIME

DOUBLE NORMAL

RV601

TAPE SPEED

(NORMAL SPEED)

THP602

RV601

M901

(CAPSTAN/REEL)

THP601

S601-1

REC TIME

DOUBLE NORMAL

RV603

TAPE SPEED

(DOUBLE SPEED)

M

CAPSTAN/REEL MOTOR DRIVE

VS

18

GVN VREF

19

GVN CONT

20

GVN OUT

16

IC101 (3/3)

MOTOR
DRIVER

VCC B+

PB B+

REC B+

VREF

S101 (5/6)

(REC/PB)

PB

REC

REFERENCE VOLTAGE

MUTE SWITCH

Q107, 108

MUTE

VCC

21

POWER ON B+

15

MUTE

MIC
VCC

REGULATOR

26

RIPPLE

REFERENCE

VREF

27

VOLTAGE

GENERATOR

FILTER

MUTE

SWITCH

Q109, 110

BATTERY B+

S102

(POWER)

REC B+

PB B+

DRY BATTERY

SIZE “AA”

(IEC DESIGNATION R6)

2PCS. 3V

CN101

DC IN 3V

+

–

– 9 – – 10 –

TCM-20DV/21DV/22DV/23DV

6-2. PRINTED WIRING BOARDS

1

A

MAIN BOARD

B

C

D

Q112

E

S105

PAUSE

OFF

ON

F

2 3 4 5 6 7 8 9 10 11 12 13 14 15

(PLUG IN POWER)

C101

C146

–6

–5

–4

C112

+

C128

J101
MIC

BLK

C147

R103 R102 R105

C107

R112

R113

30

R122

16

R111

RED

C141

C106

C142

C132

R104

MIC101

MIC

C148

RV601

S102

(POWER)

R101

+

C104

C102

+

C105

Q101

E

D101

BATT

RV101
VOL

–2

–1

C136

R129

C149

Q102

C2

E2

R132

R131

R130

R134

R133

E1

B1

B2

C1

R106

B

C

C103

R601

R603

J102

EAR

C145

C124

+

C123

+

+

C122

(CONDUCTOR SIDE)

C134

Q104

C140

BCE

+

Q106

R119

E

C

B

Q103

R142

R137

C114

C111

BCE

C116

C110

C144

R118

C143

S101

(REC/PB)

REC PB

–3

–2

–1

12

R110

C108

+

R109

R114

C117

C121

C109

C118

R108

1

15

C127

+

IC101

C119

(COMPONENT SIDE)

S104
VOR

OFF L H

R201

R125

+

C133

R115

C137

R127

R126

BCE

R144

R604

Q108

BCE

Q107

BCE

R136

C138

R141

BCE

Q110

Q109

BCE

R123

C113

R116

R117

C130

Q111

BCE

R135

HRP901

(REC/PB HEAD)

HE901

(ERASE HEAD)

MAIN BOARD

1

2

C120

RV602

SPEED

CONTROL

R143

R138

R139

BCE

Q105

G

H

DRY BATTERY

SIZE “AA”

(IEC DESIGNATION R06)

2PCS. 3V

SP901

(SPEAKER)

+

C129

BRN

BRN

BRN

BRN

BLK

BLK

RV603

R606

R607

R610

THP601

R609

R602

THP602

C139

• Semiconductor Location

Ref. No. LocationRef. No. Location

D101 A-13

Q105 G-6
Q106 F-9

I

IC101 E-11

Q101 D-13
Q102 D-14
Q103 D-10
Q104 D-10

J

Note on Printed Wiring Boards:

• X : parts extracted from the component side.

Q107 F-3
Q108 E-3
Q109 E-3
Q110 F-3
Q111 C-7
Q112 E-2

• Y : parts extracted from the conductor side.

z

•

: Through hole.

• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)

Caution:
Pattern face side: Parts on the pattern face side seen from

K

(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.

05

1-676-966-

11

(11)

– 11 –

M901

(CAPSTAN/REEL)

MM

BLK

RED

C125

C126

1-676-966-

SW BOARD

+

CN101

DC IN 3V

+–

11

(11)

BLK

BLK

BRN

BRN

S601

REC TIME

DOUBLE NORMAL

–1

–2

1-676-967-

11

– 12 –

6-3. SCHEMATIC DIAGRAM • See page 15 for IC Block Diagram.

TCM-20DV/21DV/22DV/23DV

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in Ω and 1/
specified.

• C : panel designation.

• U : B+ Line.

• H : adjustment for repair.

• Total current is measured with no cassette installed.

• Power voltage is dc 3 V and fed with regulated dc power

supply from external power voltage jack.

4

W or less unless otherwise

– 13 – – 14 –

• Voltages are dc with respect to ground under no-signal

conditions.
no mark : PLAY
< > : RECORD

• Voltages are taken with a V OM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc­tion tolerances.

• Signal path.

E : PLAY
a : RECORD

SECTION 7

EXPLODED VIEWS

• IC Block Diagram
IC101 LA4168ML-TE-L

PRE GND

EQ IN

MIC IN

30

2.2k

+

–

EQ

300k

1

PRE NF

2

PRE OUT

+

–

MIC

3

REC IN

30k

+

4

Vref OUT

2k

–

20k

REC

REC OUT

MIC VCC

5

ALC CONT

R, F OUT

2526272829

ALC

6

VOX CONT

LED DRIVER/P SW

VOX

SPEED

VOX

7

VOX DELAY

PAUSE

MIC
VCC

+

–

Vref

8

GNV SPEED UP

PAUSE

222324

9

AUT STOP CONT

P/R MUTE

21

10

AUT STOP IN

GVN CONT

20

11

PWR IN

GVN Vref

1

12

PWR OUT1

1819

R/P

R, F

POWER

13

Vs

PWR GND

GVN GND

17

2

14

PWR OUT2

GVN

GVN OUT

16

15

Vcc

NOTE:

• -XX and -X mean standardized parts, so they
may have some difference from the original
one.

• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)

↑↑

Parts Color Cabinet's Color

• Abbreviation
1E: No indication of country of origin

(1) CABINET SECTION

13

12

not
supplied

MIC101

11

28

10

7

9

8

MT-20DV-118

• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.

• The mechanical parts with no reference num­ber in the exploded views are not supplied.

• Accessories and packing materials are given
in the last of the electrical parts list.

14

15

16

29

6

22

17

1

26

SP901

26

19

18

1

not
supplied

21

20

5

4

3

1

26

26

Ref. No. Part No. Description Remark

1 3-318-382-31 SCREW (1.7), TAPPING
2 3-345-648-01 SCREW (M1.4), TOOTHED LOCK

* 3 A-3021-314-A MAIN BOARD, COMPLETE

4 3-924-741-01 TERMINAL, PLUS
5 3-936-973-01 TERMINAL, MINUS

6 3-924-744-01 SPRING (CLAW DETECTION), TENSION
7 3-924-743-01 CLAW, ERASING PROTECTION
8 3-334-565-41 SCREW (B1.7), TAPPING
9 3-924-745-01 BAR, GROUND
10 3-924-740-01 HOLDER, MICROPHONE

11 3-924-763-01 CUSHION (MICROPHONE)
12 3-924-742-21 KNOB (VOR)
13 3-939-590-26 SCREW (IB LOCK)
14 3-578-101-31 PLATE, ORNAMENTAL
15 3-019-364-33 CABINET (FRONT) (20DV: 1E/23DV: 1E)

26

2

26

23

25

24

Ref. No. Part No. Description Remark

16 3-924-739-01 SPRING, CASSETTE
17 X-4952-666-1 LID ASSY, CASSETTE
18 4-017-441-01 CUSHION (B)

* 19 3-924-757-01 BRACKET (SPEAKER)

20 3-328-319-01 STRAP, HAND

21 3-924-749-21 LID, BATTERY CASE
22 3-924-747-21 KNOB (PAUSE)
23 3-019-597-11 CABINET (REAR)
24 3-318-203-92 SCREW (B1.7X9), TAPPING
25 3-366-890-51 SCREW (IB LOCK)

26 3-831-441-99 CUSHION
28 3-831-441-11 CUSHION, CABINET UPPER 10X7X0.5

* 29 1-676-967-11 SW BOARD

SP901 1-505-838-11 SPEAKER (3.6cm)
MIC101 1-542-136-11 MICROPHONE, ELECTRET CONDENSER

– 15 –

15 3-019-364-43 CABINET (FRONT) (20DV: 1E/23DV: 1E)

– 16 –

(2) MECHANISM DECK SECTION-1

(MT-20DV-118)

61

60

56

58

62

63

HRP901

59

57

HE901

74

64

66

67

69

65

68

76

77

55

not
supplied

54

53

51

Ref. No. Part No. Description Remark

51 X-3377-250-1 LEVER, (2) ASSY, PINCH
52 3-925-146-01 BUTTON (FF) (M)
53 3-925-147-01 BUTTON (REW) (m)
54 3-925-148-01 BUTTON (PLAY) (N)
55 3-925-145-01 BUTTON (REC) (z)

56 3-924-738-01 BUTTON (STOP) (x)
57 3-703-925-21 SCREW (M1.4)
58 3-924-625-01 LEVER (HEAD)
59 3-924-645-01 BRACKET (HEAD)
60 3-924-685-01 SPRING (AZIMUTH), COMPRESSION

61 3-704-197-91 SCREW (M1.4X1.8), LOCKING
62 3-375-135-01 SCREW (1.4), SPECIAL
63 3-376-177-01 SCREW (M1.4X3.8)
64 3-925-107-01 SPRING (IDLER), COMPRESSION
65 3-924-637-01 GEAR (FF)

52

70

M901

75

71

78

73

72

Ref. No. Part No. Description Remark

67 3-924-674-01 SPRING (B. T), COMPRESSION
68 3-924-641-01 GEAR (T REEL)
69 3-924-726-01 SPRING (M GROUND), TORSION
70 3-907-943-01 BELT (CAPSTAN)
71 3-925-109-01 CUSHION (MOTOR)

72 3-925-108-01 SCREW (MOTOR)
73 3-924-644-01 SPRING (POWER TENSION), TENSION
74 3-348-160-11 SCREW (M1.4X1.6), PRECISION PAN
75 3-927-754-11 CUSHION (M)
76 3-831-441-99 CUSHION

77 3-030-766-12 SHEET (MOTOR)
78 3-561-685-01 SHEET (C), INSULATING
HE901 1-500-515-11 HEAD, MAGNETIC (ERASE)
HRP901 1-500-073-51 HEAD, MAGNETIC (RECORD/PLAYBACK)
M901 1-763-453-21 MOTOR, DC (CAPSTAN/REEL) (WITH PULLEY)

66 3-924-673-01 GEAR (S REEL)

– 17 –

(3) MECHANISM DECK SECTION-2

(MT-20DV-118)

109

113

111110

112

116

114

103

107

106

102

105

108

104

101

not
supplied

118

124

120

121

127

117

101

119

115

123

122

128

129

125

102

101

Ref. No. Part No. Description Remark

101 3-321-483-11 RING, RETAINING (0.25)
102 3-315-495-31 WASHER
103 X-3370-384-1 FLYWHEEL ASSY
104 3-924-623-01 LEVER (PLAY)
105 3-924-621-01 LEVER (REW)

106 3-924-620-01 LEVER (FF)
107 X-3370-388-1 TABLE ASSY, FELT
108 3-924-642-01 SPRING (FR), TORSION
109 3-924-629-01 LEVER (DETECTION)
110 3-925-207-01 SPRING (S. OFF), TENSION

111 3-924-630-01 LEVER (S.OFF)
112 X-3370-387-1 LEVER ASSY, IDLER
113 3-924-682-01 BELT (FR)
114 X-3370-385-1 PULLEY (FR) ASSY
115 3-924-628-01 LEVER (FR)

126

Ref. No. Part No. Description Remark

116 3-924-633-01 SPRING (STOP), TENSION
117 3-924-622-01 LEVER (STOP)
118 3-924-643-01 SPRING (PR), TORSION
119 3-924-684-01 SPRING (LOCK PLATE), TENSION
120 3-924-619-01 LEVER (SW)

121 3-924-639-01 LEVER (CR)
122 3-924-618-01 LEVER (LOCK)
123 3-925-208-01 SPRING (REC), TENSION
124 3-924-624-01 LEVER (REC)
125 X-3372-155-1 CHASSIS ASSY

126 3-924-613-01 GEAR (FR)
127 3-024-378-01 SPRING (FR LEVER), TORSION
128 3-939-590-26 SCREW (IB LOCK)
129 3-029-566-12 STOPPER (FF)

– 18 –

SECTION 8

ELECTRICAL PARTS LIST

MAIN

NOTE:

• Due to standardization, replacements in the
parts list may be different from the parts speci­fied in the diagrams or the components used
on the set.

• -XX and -X mean standardized parts, so they
may have some difference from the original
one.

• RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable

• Abbreviation
1E: No indication of country of origin

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

* A-3021-314-A MAIN BOARD, COMPLETE

*********************

3-924-741-01 TERMINAL, PLUS

< CAPACITOR >

C101 1-163-809-11 CERAMIC CHIP 0.047uF 10% 25V
C102 1-164-161-11 CERAMIC CHIP 0.0022uF 10% 100V
C103 1-109-982-11 CERAMIC CHIP 1uF 10% 10V
C104 1-135-201-11 TANTALUM CHIP 10uF 20% 4V
C105 1-135-201-11 TANTALUM CHIP 10uF 20% 4V

• Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order­ing these items.

• SEMICONDUCTORS
In each case, u: µ, for example:
uA. . : µA. . uPA. . : µPA. .
uPB. . : µPB. . uPC. . : µPC. .
uPD. . : µPD. .

• CAPACITORS
uF: µF

• COILS
uH: µH

C142 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V
C143 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V

C144 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V
C145 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V
C146 1-163-251-11 CERAMIC CHIP 100PF 5% 50V
C147 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V
C148 1-164-492-11 CERAMIC CHIP 0.15uF 10% 16V

C149 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V

The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.

Les composants identifiés par une
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.

When indicating parts by reference
number, please include the board.

< CONNECTOR >

C106 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V
C107 1-107-725-11 CERAMIC CHIP 0.1uF 10% 16V
C108 1-163-017-00 CERAMIC CHIP 0.0047uF 5% 50V
C109 1-163-001-11 CERAMIC CHIP 220PF 10% 50V
C110 1-109-982-11 CERAMIC CHIP 1uF 10% 10V

C111 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V
C112 1-163-017-00 CERAMIC CHIP 0.0047uF 5% 50V
C113 1-164-005-11 CERAMIC CHIP 0.47uF 25V
C114 1-164-346-11 CERAMIC CHIP 1uF 16V
C116 1-164-346-11 CERAMIC CHIP 1uF 16V

C117 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V
C118 1-164-489-11 CERAMIC CHIP 0.22uF 10% 16V
C119 1-164-489-11 CERAMIC CHIP 0.22uF 10% 16V
C120 1-126-153-11 ELECT 22uF 20% 6.3V
C121 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V

C122 1-126-153-11 ELECT 22uF 20% 6.3V
C123 1-124-257-00 ELECT 2.2uF 20% 50V
C124 1-124-259-11 ELECT 4.7uF 20% 16V
C125 1-124-434-00 ELECT 220uF 20% 4V
C126 1-164-346-11 CERAMIC CHIP 1uF 16V

C127 1-124-434-00 ELECT 220uF 20% 4V
C128 1-124-433-00 ELECT 100uF 20% 4V
C129 1-126-153-11 ELECT 22uF 20% 6.3V
C130 1-163-038-00 CERAMIC CHIP 0.1uF 25V
C132 1-164-346-11 CERAMIC CHIP 1uF 16V

CN101 1-580-919-11 JACK, DC (POLARITY UNIFIED TYPE)

(DC IN 3V)

< DIODE >

D101 8-719-057-27 LED L-132XHD (BATT)

< IC >

IC101 8-759-492-49 IC LA4168ML-TE-L

< JACK >

J101 1-766-847-12 JACK (MIC PLUG IN POWER)
J102 1-766-847-12 JACK (EAR)

< TRANSISTOR >

Q101 8-729-800-37 TRANSISTOR 2SD1048-X7
Q102 8-729-402-84 TRANSISTOR XN4601
Q103 8-729-420-50 TRANSISTOR UN5215
Q104 8-729-230-72 TRANSISTOR 2SA1362YG
Q105 8-729-230-63 TRANSISTOR 2SC4116-YG

Q106 8-729-800-37 TRANSISTOR 2SD1048-X7
Q107 8-729-420-53 TRANSISTOR UN5115
Q108 8-729-402-93 TRANSISTOR UN5214-TX
Q109 8-729-420-53 TRANSISTOR UN5115
Q110 8-729-420-50 TRANSISTOR UN5215

C133 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V
C134 1-164-182-11 CERAMIC CHIP 0.0033uF 10% 50V
C136 1-164-346-11 CERAMIC CHIP 1uF 16V
C137 1-164-346-11 CERAMIC CHIP 1uF 16V
C138 1-164-346-11 CERAMIC CHIP 1uF 16V

C139 1-164-505-11 CERAMIC CHIP 2.2uF 16V
C140 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V
C141 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V

Q111 8-729-402-93 TRANSISTOR UN5214-TX
Q112 8-729-420-50 TRANSISTOR UN5215

< RESISTOR >

R101 1-216-065-00 RES-CHIP 4.7K 5% 1/10W
R102 1-216-053-00 METAL CHIP 1.5K 5% 1/10W
R103 1-216-069-00 METAL CHIP 6.8K 5% 1/10W
R104 1-216-073-00 METAL CHIP 10K 5% 1/10W

– 19 –

TCM-20DV/21DV/22DV/23DV

MAIN SW

Ref. No. Part No. Description Remark

R105 1-216-049-11 RES-CHIP 1K 5% 1/10W

R106 1-216-049-11 RES-CHIP 1K 5% 1/10W
R108 1-216-085-00 METAL CHIP 33K 5% 1/10W
R109 1-216-037-00 METAL CHIP 330 5% 1/10W
R110 1-216-037-00 METAL CHIP 330 5% 1/10W
R111 1-216-069-00 METAL CHIP 6.8K 5% 1/10W

R112 1-216-073-00 METAL CHIP 10K 5% 1/10W
R113 1-216-089-00 RES-CHIP 47K 5% 1/10W
R114 1-216-081-00 METAL CHIP 22K 5% 1/10W
R115 1-216-065-00 RES-CHIP 4.7K 5% 1/10W
R116 1-216-089-00 RES-CHIP 47K 5% 1/10W

R117 1-216-065-00 RES-CHIP 4.7K 5% 1/10W
R118 1-216-009-00 RES-CHIP 22 5% 1/10W
R119 1-216-121-00 RES-CHIP 1M 5% 1/10W
R122 1-216-081-00 METAL CHIP 22K 5% 1/10W
R123 1-216-057-00 METAL CHIP 2.2K 5% 1/10W

R125 1-216-065-00 RES-CHIP 4.7K 5% 1/10W
R126 1-216-033-00 METAL CHIP 220 5% 1/10W
R127 1-216-053-00 METAL CHIP 1.5K 5% 1/10W
R129 1-216-097-00 RES-CHIP 100K 5% 1/10W
R130 1-216-061-00 METAL CHIP 3.3K 5% 1/10W

R131 1-216-077-00 RES-CHIP 15K 5% 1/10W
R132 1-216-061-00 METAL CHIP 3.3K 5% 1/10W
R133 1-216-045-00 METAL CHIP 680 5% 1/10W
R134 1-216-061-00 METAL CHIP 3.3K 5% 1/10W
R135 1-216-105-00 RES-CHIP 220K 5% 1/10W

R136 1-216-097-00 RES-CHIP 100K 5% 1/10W
R137 1-216-073-00 METAL CHIP 10K 5% 1/10W
R138 1-216-097-00 RES-CHIP 100K 5% 1/10W
R139 1-216-105-00 RES-CHIP 220K 5% 1/10W
R141 1-216-073-00 METAL CHIP 10K 5% 1/10W

R142 1-216-025-00 RES-CHIP 100 5% 1/10W
R143 1-216-065-00 RES-CHIP 4.7K 5% 1/10W
R144 1-216-017-00 RES-CHIP 47 5% 1/10W
R201 1-216-009-00 RES-CHIP 22 5% 1/10W
R601 1-216-081-00 METAL CHIP 22K 5% 1/10W

R602 1-216-049-11 RES-CHIP 1K 5% 1/10W
R603 1-216-053-00 METAL CHIP 1.5K 5% 1/10W
R604 1-216-077-00 RES-CHIP 15K 5% 1/10W
R606 1-216-097-00 RES-CHIP 100K 5% 1/10W
R607 1-216-081-00 METAL CHIP 22K 5% 1/10W

R609 1-216-053-00 METAL CHIP 1.5K 5% 1/10W
R610 1-216-057-00 METAL CHIP 2.2K 5% 1/10W

< VARIABLE RESISTOR >

RV101 1-227-166-11 RES, VAR, CARBON (VOL w)
RV601 1-223-583-11 RES, ADJ, CARBON 1K
RV602 1-225-598-11 RES, VAR, CARBON 2K (SPEED CONTROL)
RV603 1-223-587-11 RES, ADJ, CARBON 22K

Ref. No. Part No. Description Remark

< THERMISTOR >

THP601 1-810-007-11 THERMISTOR, POSITIVE
THP602 1-809-350-21 THERMISTOR, NTC (2125)

**************************************************************

* 1-676-967-11 SW BOARD

*********

< SWITCH >

S601 1-571-277-51 SWITCH, SLIDE (REC TIME)

**************************************************************

MISCELLANEOUS

**************

HE901 1-500-515-11 HEAD, MAGNETIC (ERASE)
HRP901 1-500-073-51 HEAD, MAGNETIC (RECORD/PLAYBACK)
M901 1-763-453-21 MOTOR, DC (CAPSTAN/REEL) (WITH PULLEY)
MIC101 1-542-136-11 MICROPHONE, ELECTRET CONDENSER (MIC)
SP901 1-505-838-11 SPEAKER (3.6cm)

************************************************************

ACCESSORIES & PACKING MATERIALS

*********************************

0 1-528-405-31 ADAPTOR, BATTERY CHARGE

(BCA-35E) (22DV)

1-542-307-11 MICROPHONE (ECM-J2SL) (21DV)

0 1-693-073-21 ADAPTOR, AC (AC-E350) (22DV)

1-756-035-31 BATTERY PACK (NC-WMAA) (22DV)
3-044-622-01 POUCH, CARRYING (21DV)

3-868-083-11 MANUAL, INSTRUCTION

(ENGLISH, FRENCH, SPANISH) (US, Canadian)

3-868-083-21 MANUAL, INSTRUCTION

(ENGLISH, SPANISH, PORTUGUESE) (E)

3-868-083-31 MANUAL, INSTRUCTION

(GERMAN, ITALIAN, HUNGARIAN) (21DV: E)

3-868-083-41 MANUAL, INSTRUCTION

(FRENCH, GERMAN, ITALIAN) (20DV: E)

3-868-083-51 MANUAL, INSTRUCTION

(DUTCH, SWEDISH, FINNISH) (20DV: E)

3-868-083-61 MANUAL, INSTRUCTION (POLISH, CZECH,

SLOVAKIAN) (20DV: EE/21DV: E)

3-868-083-71 MANUAL, INSTRUCTION (ENGLISH, CHINESE)

(20DV: 1E/23DV: 1E)

3-868-083-81 MANUAL, INSTRUCTION (ENGLISH, CHINESE)

(20DV: CHINESE)

3-868-083-91 MANUAL, INSTRUCTION

(ENGLISH, RUSSIAN, HUNGARIAN) (20DV: EE)

8-814-296-90 MICROPHONE, CONDENSER ECM-TC60

(23DV)

< SWITCH >

S101 1-771-321-11 SWITCH, SLIDE (REC/PB)
S102 1-572-688-11 SWITCH, PUSH (1 KEY) (POWER)
S104 1-692-605-31 SWITCH, SLIDE (VOR)
S105 1-572-922-11 SWITCH, SLIDE (PAUSE .)

9-927-668-11

The components identified by
mark 0 or dotted line with
mark 0 are critical for safety .
Replace only with part num­ber specified.

Sony Corporation

Personal Audio Division Company

– 20 –

Les composants identifiés par une
marque 0 sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.

Published by General Engineering Dept.

Printed in Japan C 2000. 2

2000B0579-1