Sony TCM-230DV User manual

SERVICE MANUAL
TCM-230DV
US Model
SPECIFICATIONS
Ver 1.0 2004.02
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MT-200DV-175
CASSETTE-CORDER
9-877-567-01 Sony Corporation
2004B05-1 Personal Audio Company
C2004.02 Published by Sony Engineering Corporation
Battery life* (approx. hours)
Batteries Recording Playback
Sonyalkalin 25 16
LR6(SG)**
SonyR6P(SR) 6.5 4
Sony
rechargeable 10 6
batteries
NH-7WMAA
*Measured value by the standard of
JEITA (Japan Electronics and
Information Technology Industries
Association). (Using a Sony HF
series cassette tape on which music
has been recorded is played at
volume setting 7 using speaker)
** When using Sony LR6 (SG) alkaline
dry batteries (produced in Japan)
Note
The battery life may be shorter
depending on the operating condition,
the surrounding temperature and
battery type.
For maximum performance we
recommend that you use alkaline
batteries.
House Current
Connect the AC power adaptor to
DC IN 3V and to the mains. Use the
AC-E30HG AC power adaptor (not
supplied) or the supplied AC power
adaptor (TCM-230DV/210DV only).
Do not use any other AC power
adaptor.
Polarity of
the plug
Notes
•Specifications for AC-E30HG vary
for each area. Check your local
voltage and the shape of the plug
before purchasing.
•Do not touch the AC power adaptor
with wet hands.
•Connect the AC power adaptor to
the easily accessible mains. Should
you notice an abnormality in the AC
power adaptor, disconnect it from
the mains immediately.
Recording system
2-track 1 channel monaural
Tape speed
4.8 cm/s (1 7
/8ips) or 2.4 cm/s
(15
/16 ips)
Frequency range
250 - 6 300 Hz using nomal (TYPE
I) cassette (with REC TIME/PLAY
MODE switch at “NORMAL”)
Speaker
Approx. 5.0 cm (2 in.) dia.
Power output
350 mW (at 10 % harmonic
distortion)
Input
Microphone input jack (minijack)
sensitivity 0.2 mV for 3 kΩor
lower impedance microphone
Output
Earphone jack (minijack) for 8 -
300 Ωearphone
Variable range of the tape speed
From approx. +30% to −15% (with
REC TIME/PLAY MODE switch
at “NORMAL”)
Power requirements
• 3 V DC batteries R6 (AA) x 2
• External DC 3 V power sources
Dimensions(w/h/d) (incl.projecting
parts and controls)
Approx. 86.9 ×116.3 ×36.5 mm
(3 1/2×4 5/8×1 7/16 in.)
Mass(main unit only)
Approx.
Supplied accessories
AC power adaptor (1)
Battery power adaptor (1)
Rechargeable batteries
NH-7WMAA (1.2 V, 700 mAh, Ni-MH) (2)
171 g (6.1 oz.)
Design and specifications are subject
to change without notice.

2
TCM-230DV
TABLE OF CONTENTS
1. SERVICING NOTES ······················································ 2
2. GENERAL ·········································································· 3
3. DISASSEMBLY
3-1. Disassembly Flow··························································· 4
3-2. Speaker (SP901), Cassette Lid Assy······························· 4
3-3. Cabinet (Rear)································································· 5
3-4. MAIN Board ··································································· 5
3-5. Mechanism Deck (MT-200DV-175) ······························· 6
4. MECHANICAL ADJUSTMENTS ······························ 7
5. ELECTRICAL ADJUSTMENTS································ 8
6. DIAGRAMS
6-1. Note for Printed Wiring Boards and
Schematic Diagrams ······················································· 9
6-2. Printed Wiring Boards ·················································· 11
6-3. Schematic Diagram······················································· 12
7. EXPLODED VIEWS
7-1. Cabinet Section ····························································· 13
7-2. Mechanism Deck Section-1 (MT-200DV-175)············· 14
7-3. Mechanism Deck Section-2 (MT-200DV-175)············· 15
8. ELECTRICAL PARTS LIST ······································· 16
In this set, the S102 (POWER) detects RECORD/PLAYBACK on.
It is mounted on the MAIN board, and therefore the RECORD/
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 (Component Side) –
SECTION 1
SERVICING NOTES
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.
S102
on
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED
LINE WITH MARK 0ON 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.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40 ˚C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 ˚C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges oc-
cur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

3
TCM-230DV
SECTION 2
GENERAL
VOR
RECTIME/
PLAYMODE
SPEED CONTROL
MIC (Built-in microphone,
Micrófono incorporado)
mREW/
REVIEW
PAUSE.
xSTOP
EAR
DCIN 3V
MIC (PLUGIN POWER)
zREC
This section is extracted from
instruction manual.
• LOCATION OF CONTROLS

4
TCM-230DV SECTION 3
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
3-2. SPEAKER (SP901), CASSETTE LID ASSY
SET
3-2. SPEAKER (SP901),
CASSETTE LID ASSY
(Page 4)
3-5. MECHANISM DECK
(MT-200DV-175)
(Page 6)
3-3. CABINET (REAR)
(Page 5)
3-4. MAIN BOARD
(page 5)
1 boss
7 speaker (SP901)
4 cushion (B)
3
2 boss
5 Remove soldering
from the two points.
6 two screws
(TP B2.0)
8 two screws
(TP 1.7)
9 SW board
q; spring (cassette)
qa cassette lid assy
3-1. DISASSEMBLY FLOW
• This set can be disassembled in the order shown below.

5
TCM-230DV
3-3. CABINET (REAR)
3-4. MAIN BOARD
4 two screws
(BTP 1.7
× 9
)
3 screw
(BTP 1.7
× 9 )
2 screw
(1.7
× 16 )
5 two claws
5 claw
5 claw
5 two claws
6
7
cabinet (rear)
1
5 three screws
(M1.4 × 3)
6 MAIN board
1 Remove soldering from the two points.
4 Remove soldering
from the two points.
2 Remove soldering from the four points.
3 Remove soldering from the seven points.
RED
RED
BLK
BLK
WHT
WHT
ORG

6
TCM-230DV
3-5. MECHANISM DECK (MT-200DV-175)
2 two screws
(M1.4
× 2.2)
1
3 screw
(IB LOCK)
4 mechanism dec
k
(MT-200DV-175)

7
TCM-230DV
SECTION 4
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab:
record/playback head pinch roller
erase head rubber belt
capstan idlers
2. Demagnetizethe record/playbackheadwith 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 (2.5V) unless otherwise noted.
TORQUE MEASUREMENT
Mode Torque Meter Meter Reading
FWD 2.16 - 4.7 mN•m
(22 - 48 g•cm)
CQ-102C (0.31 - 0.67 oz•inch)
FWD 0.05 - 0.29 mN•m
(0.5 - 3 g•cm)
Back Tension (0.007 - 0.04 oz•inch)
FF 4.90 mN•m
CQ-201B (more than 50 g•cm)
REW (more than 0.69 oz•inch)
TAPETENSION MEASUREMENT
Mode Torque Meter Meter Reading
4.90 mN•m
FWD CQ-403C (more than 50 g)
(more than 1.76 oz)

8
TCM-230DV SECTION 5
ELECTRICAL ADJUSTMENTS
TAPE SPEED ADJUSTMENT
Mode: playback
Procedure:
– Normal Speed –
1. Set[REC TIME] switch (S601) toNORMAL(4.8 cm/s) position,
and playback the tape (WS-48A) .
2. Adjust RV601 so that frequency counter reading becomes 3,040
Hz.
Specification values: 3,030 to 3,050 Hz
– Double Speed –
3. Set[REC TIME] switch (S601) toDOUBLE (2.4 cm/s)position.
4. Playback the tape (WS-48A) from the beginning for two
minutes, then adjust RV602 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:
– MAIN BOARD (Conductor Side) –
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Mode: playback
Procedure:
1. Turn the adjustment screw 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.
Adjustment Location:
level mete
r
test tape
P-4-A063
(6.3 kHz, –10 dB) 16
Ω
set
EAR jack (J103)
+
–
frequency
counter
test tape
WS-48A
(3 kHz, 0 dB) 16
Ω
EAR jack (J103)
set +
–
SETTING:
•Supplied voltage: 2.5 V
•Switch and control position
[VOL ] control (RV101) : mechanical center
[PAUSE ] switch (S301) : OFF
[SPEED CONTROL](RV603): center click
[VOR] switch (S501) : OFF
TESTTAPE
Type 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
w
.
adjustment screw
J102
RV601
Tape Speed Adjustment
(Normal Speed)
RV602
Tape Speed Adjustment
(Double Speed)
J103

9
TCM-230DV
6-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
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 Ωand 1/4W or less unless otherwise
specified.
•C: panel designation.
•A: B+ Line.
•H: adjustment for repair.
•Total current is measured with no cassette installed.
•Power voltage is dc 3V and fed with regulated dc power
supply from battery terminal.
•Voltages are dc with respect to ground under no-signal
conditions.
no mark : PLAYBACK
(): RECORD
•Voltagesare takenwithaVOM(Input impedance10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Signal path.
E: PLAYBACK
a: RECORD
Note on Printed Wiring Boards:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•z: Through hole.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Partsonthe pattern facesideseen from
(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.
SECTION 6
DIAGRAMS

10
TCM-230DV
•IC Block Diagrams
– MAIN Board –
IC101 NJM2128M-TE2
FC GND
VCC
VCC
FC
WB
VCC
NC
UOUT
VOUT
WOUT
P-GND
VB
UB
GND
TO
CONTROL
BLOCKS
TO
EACH
BLOCKS
RI OUT VSP IN+ VREF S/S COM OSC
75
4
31 2 6 8 9 10
1112131415161820 19
STARTING
DETECT
POWER
SUPPLY
BIAS
OSCILLATING
CIRCUIT
SPEED CONTROL
REFERENCE VOLTAGE
REFERENCE
VOLTAGE
CURRENT
DETECT
SPEED
DETECT
WAVEFORM DETECT
COMMUTATION STARTING LOGIC
SOFT SWITCH
PRE DRIVER
+
–
17
IC601 LB1979VL-TLM-E
IC102 LM4890MMX
1
BIAS
3
4
2
8
6
5
7
SHUTDOWN
BYPASS
+IN
-IN
VO2
GND
VDD
VO1
+
–
+
–
14
13
12
11
10
9
2
3
4
5
6
7
8
PRE +IN
PRE
AMP
15
16
+
–
ALC
1
RIPPLE
FILTER
POWER
AMP A
POWER
AMP B
S GND
POWER
+IN A
POWER
-IN A
POWER
-IN B
POWER
+IN B
RF OUT
RF IN
TC
ALC IN
POWER
GND
POWER
OUT B
PRE -IN
PRE OUT
POWER
OUT A
VCC
IC501 NJM2072M
1
2
3
4 5
6
7
8
INPUT
GAIN CONT
AMP OUT
GND
VCC
OUTPUT1
RECOVERY
TIME CAP
OUTPUT2

TCM-230DV
1111
6-2. PRINTED WIRING BOARDS :Uses unleaded solder.
(12)
12
1-686-273-
MAIN BOARD (COMPONENT SIDE)
C313
R303
R304
R301 S301
OFF
ON
R315
R314R611
HRP901
HE901
C102
R115
R112
R316
R507
C501R503R502
R505R501
R309
C107
R104
R105
R110
C114
R311
R312
C113
R506R504C502
R306 R305
C305 +
C306 +
C304
+
C127
+
Q501
Q301
BCE
BCE
D301
KA
R102
C106 C109
R107 R108
R111
C115
C105
R120
C116
R121
C503
C110
R109
R201
C126 C124
R319
C308
C118
C504
C117
Q304
BCE
1
4
8
5
IC501
R604R607
R601
C120
R320
R123
R126
C121
C601
C603
C125
C609
R612
C608
R602
C610
R603
C123
R113
C119
C128
R125
R313
R609
R613 R614
R615
C602
R605
C607
R610 R606
THP601
C605
RV601 RV602
14
85
IC601
Q502
Q602
BCE
BCE
Q604
Q603
BCE
Q601
BCE
BCE
C606
+
Q302
BCE
C101
C104
C103
R117
R116
C111
14
85
IC102
Q303
BCE
S501
H L OFF
W114W113
W104
WHT
W607
W605
W606
W107
W108
W109
W110
SL100
W602
W603
W604
W601
W105
W106
W102
1
8
16
9
IC101
S101
(REC/PB)
PB REC
C310
W101
+
+
C505
+
C311
+
C307
+
C309
+
C303
+
C302
S102
(POWER)
+
C611
+
C312
+
C301
J101
J103
J102
RV101
MAIN BOARD
(CONDUCTOR SIDE)
(12)
12
1-686-273-
W103
PAUSE
D303
(BATT)
MIC901
MIC
VOL
EAR
RED
BLK
MIC
(PLUG IN POWER)
-1
-2
-3
-4
-5
-6
BLK VIO BRN BLU RED YEL ORG
BRN
WHT
BLK
RED
–+
DC IN 3V
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
2PCS. 3V
BLK W
WHT V
BRN U
M901
(CAPSTAN/REEL)
RED VCC
W209
W208
W207
W706
W705
W707
VIO
W210
SPEED
CONTROL
RV603
W216 W215
SP901
BLK
BLK
(12)
11
1-686-271-
S601
DOUBLE
NORMAL
REC TIME
/PLAY MODE
BLU
YEL
ORG
RED
BRN
BLK
SW BOARD
A
B
C
D
E
F
G
H
I
J
K
1 2 3 4 5 6 7 8 9 10 11 12 13
-1
-2
VOR
D301 C-11
D303 A-12
IC101 D-9
IC102 G-8
IC501 F-10
IC601 I-10
Q301 D-11
Q302 D-9
Q303 H-8
Q304 F-10
Q501 C-11
Q502 I-9
Q601 H-9
Q602 I-9
Q603 H-9
Q604 I-9
•Semiconductor
Location
Ref. No. Location

TCM-230DV
1212
6-3. SCHEMATIC DIAGRAM • See page 10 for IC Block Diagrams.
C312
R320
Q304
R120
R121
C116
C117
C306
R311 R312
C304
C118
C111
C501
C309 R316 C126
C124 R201
R112
C115
R111
C120
R113
R123 C123
C121 R125
R126 C128
C308
C310
C311
R319
R116
R117
C119
R313
D301
C307
R110
C113
R102
C106 C109
R107
R108
R104
R105
C107
W103
W104
C303
R305
R306
C101
R303
R304
C103
R314
R611
C313
R315
Q501
W105
W106
W113
W114
D303
C125
C301
W101
R507
Q502
W107
W108
W109
W110
W605
W606
W607
C503R504
R502 C502R501 C504
S501
R505 R503 R506
R604
C601 R601 C605
R609
IC102
Q303
IC501
R607
R602
IC601
R605
C602
C603
C606
W102
J101
W601
W602
W603
W604
R612
C608
C610
C607
C609
R610
R606
C611
R615
R613 R614
Q601 Q603
Q604Q602
HE901
HRP901
J102 J103
MIC901
Q302
C114
W207
W208
W209
W705
W706
W707
RV603
C104
C305
C105
R115
C127
R301
SP901
SL100
S102
M901
IC101
C110
R109
RV101
Q301
R309
C302
C102
RV601
THP601
R603
RV602
S301
C505
W215
W216
S601
W210
10
6.3V
4.7k
UN5114-TX
2.2k
2.2k
1
0.01
10 10V
4.7k 10k
10
10V
1
1
0.01
10
6.3V 2.2M 1000p
1000p 22
2.2
0.1
4.7
1
22k
10k 0.47
2200p 4.7k
10k 1
0.01
47 4V
47 4V
47k
100
47
1
10k
MA111-TX
10
6.3V
10k
2200p
220
0.47 0.47
1k
470
10k
22k
0.01
10
6.3V
470
470
0.047
22k
10k
1000p
470
1k
1000p
2.2k
UN5214-TX
L-132XHD
1000p
470
4V
4.7k
UN5214-TX
0.0110k
100k 4700p10k 1000p
47k 100k 22k
100
0.47 2.2k 2.2
100k
LM4890MMX
UN5114-TX
NJM2072M(TE2)
1k
10k
LB1979VS-TLM
1M
0.047
0.047
10 10V
10k
0.047
0.22
0.047
0.047
1M
1M
10
6.3V
10k
100 100
UN5214-TX UN5114-TX
2SA17452SA1745
2SC4213
2200p
30k
0.047
22
6.3V
1000p
47
1
16V
1k
NJM2128M-TE2
0.22
10k
10k
UN5215-(TX)
10k
22
4V
0.1
4.7k
10k
4.7k
22
4V
-IN
+IN
BYPASS
SHUTDOWN
VO1
VDD
GND
VO2
PRE
-IN
PRE
OUT
POW
OUTA
V+
POW
GND
POW
OUTB
TC
ALC
IN
PRE
+IN
SGND
POW
+INA
POW
-INA
POW
-INB
POW
+INB
RF
OUT
RF
IN
VCC
OUT2
OUT1
RCV
TIME
IN
GAIN
CTL
AMP
OUT
GND
HOFFL
RECPB
(REC/PB)
MUTING
REC
PB
(REC/PB)
B+ SWITCH
SWITCH
RECPB
(REC/PB)
RECPB
(REC/PB)
REC
PB
(REC/PB)
RECPB
(REC/PB)
POWER AMP
MUTING
CONTROL
FC
IN
OUT
VSP
IN+
VREF
S/S
COM
OSC
WB
VCC
NC
UOUT
VOUT
WOUT
P-GND
VB
UB
GND
FC GND
CAPSTAN/REEL
MOTOR DRIVE
BATT
DRY BATTERY
SIZE"AA"
(IEC DESIGNATION R6)
2PCS. 3V
(POWER)
BRAKE
SWITCH
VOL
(REC/PB)
(ERASE)
(PLUG IN POWER)
MIC
MIC
EAR
DOUBLE
NORMAL
SPEED CONTROL
PAUSE
ONOFF
DC IN 3V
VCC
W
V
U
(CAPSTAN/REEL)
CONTROL
MOTOR
SWITCH
CONTROL
MOTOR
MOTOR STOP
MUTE
SWITCHSWITCH
PRE AMP,ALC,
POWER AMP,
RIPPLE FILTER
S101-3
-2
-1
S101-6
S101-4 S101-1
VOR CONTROL
S101-2
S101-5
VOR
SWITCH
LED DRIVE
SWITCH
MOTOR
START/STOP
VOR DETECTOR
REC TIME
/PLAY MODE

SECTION 7
EXPLODEDVIEWS
13
TCM-230DV
1
2
3
4
5
6789
9
10
11
13 14
15
29
12
not supplied
not supplied
not supplied
not supplied
MIC901
SP901
not supplied
(SW board)
mechanism deck section-1
(MT-200DV-175)
161718 19
20 21
22
23
25
27
27
27
11
26
23
28
7-1. CABINET SECTION
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
•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 num-
ber in the exploded views are not supplied.
•Accessories are given in the last of the elec-
trical parts list.
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
13-328-319-01 STRAP, HAND
2X-3382-530-2 CABINET (FRONT) ASSY (200)
33-245-732-01 KNOB (PAUSE)
43-245-735-01 CUSHION, MICROPHONE
53-245-734-02 GRILLE, MICROPHONE
63-035-255-01 SCREW (1.7X16)
73-704-197-42 SCREW (M1.4X2.2), LOCKING
83-245-733-01 KNOB (VOR)
93-318-203-92 SCREW (B1.7X9), TAPPING
10 3-034-792-11 SCREW, TAPPING (B2.0)
11 4-017-441-01 CUSHION (B)
12 3-318-382-05 SCREW (1.7), TAPPING
13 3-245-737-01 SPRING (CASSETTE)
14 X-3382-534-2 LID ASSY (200), CASSETTE
15 3-245-736-02 BUTTON (REC) (z)
16 3-235-589-01 BUTTON (STOP) (x)
17 3-234-568-02 BUTTON (PLAY) (N)
18 3-234-570-02 BUTTON (REW) (m)
19 3-234-569-02 BUTTON (FF) (M)
20 3-245-751-01 SPRING (-), BATTERY COIL
*21 A-3178-873-A MAIN BOARD, COMPLETE
22 3-245-750-01 SPRING (+), BATTERY COIL
23 3-345-648-01 SCREW (M1.4X3)
25 3-245-731-02 LID, BATTERY
26 3-245-730-02 CABINET (REAR)
27 3-831-441-99 SPACER, KNOB
28 3-939-590-26 SCREW (IB LOCK)
29 3-234-856-03 LEVER (PAUSE)
MIC901 1-542-502-11 DRIVER, MICROPHONE
SP901 1-825-233-11 SPEAKER (5cm)

14
TCM-230DV
7-2. MECHANISM DECK SECTION-1 (MT-200DV-175)
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
HRP901
HE901
M901
112
101
102
104
105
108
110
111
107
113
106
mechanism deck section-2
(MT-200DV-175)
101 3-703-816-08 SCREW (M1.4X1.4), SPECIAL HEAD
102 3-234-857-02 BELT (CAP)
104 X-3379-877-2 FLY ASSY (AR), CAPSTAN
105 3-386-694-01 WASHER
106 3-029-278-01 WASHER
107 3-029-275-01 WASHER (STOPPER N)
108 3-703-816-23 SCREW (M1.4X4.5), SPECIAL HEAD
110 3-703-816-16 SCREW (M1.4X2.5), SPECIAL HEAD
111 3-703-925-41 SCREW (M1.4)
112 X-3379-882-3 PINCH (N) ASSY, ARM
113 3-234-861-02 GUIDE (ARO), TAPE
HE901 1-500-515-12 HEAD, MAGNETIC (ERASE)
HRP901 1-500-717-11 HEAD, MAGNETIC (REC/PB)
M901 1-763-772-12 MOTOR, DC (CAPSTAN/REEL)

15
TCM-230DV
7-3. MECHANISM DECK SECTION-2 (MT-200DV-175)
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
151 X-3381-206-2 CHASSIS ASSY (ARO)
152 3-225-385-03 GEAR (B)
153 3-229-063-01 SPRING (UD) (R), COMPRESSION
154 3-019-778-03 SLEEVE (MS)
155 3-728-091-01 WASHER, STOPPER
156 3-225-427-01 WASHER, LEVER
157 3-225-384-02 GEAR (A)
158 3-344-901-01 WASHER, STOPPER
159 3-225-395-04 LEVER (REW ROTARY)
160 X-3380-677-3 LEVER (E DETECTION) ASSY
161 3-229-064-01 WASHER, STOPPER
162 3-225-393-03 LEVER (SHUT/OFF)
163 X-3381-450-1 LEVER (EASY-N) ASSY
164 3-321-813-71 WASHER, COTTER POLYETHYLENE
165 X-3379-881-3 CLUTCH ASSY (AR)
166 3-315-384-31 WASHER, STOPPER
167 3-225-388-04 GEAR (D)
168 3-225-444-01 SPRING (FR ROTARY), TENSION
169 3-225-394-04 LEVER (FF ROTARY)
170 3-234-863-02 BRACKET (ARO), HEAD
171 3-019-776-03 GEAR (REEL-S)
172 3-225-443-01 SPRING (H FITTING), TENSION
152
153
154
155
156
157
159 172
158
160
161
162
163
164
165 166
166
167
169
170
171
168
151
not
supplied
not supplied
not supplied
not supplied
not supplied

16
TCM-230DV SECTION 8
ELECTRICAL PARTS LIST
MAIN
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
*A-3178-873-A MAIN BOARD, COMPLETE
*********************
< CAPACITOR >
C101 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C102 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C103 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C104 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C105 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C106 1-113-619-11 CERAMIC CHIP 0.47uF 10V
C107 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C109 1-113-619-11 CERAMIC CHIP 0.47uF 10V
C110 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V
C111 1-115-156-11 CERAMIC CHIP 1uF 10V
C113 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C114 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C115 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C116 1-115-156-11 CERAMIC CHIP 1uF 10V
C117 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C118 1-115-156-11 CERAMIC CHIP 1uF 10V
C119 1-115-156-11 CERAMIC CHIP 1uF 10V
C120 1-115-156-11 CERAMIC CHIP 1uF 10V
C121 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C123 1-113-619-11 CERAMIC CHIP 0.47uF 10V
C124 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C125 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C126 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C127 1-135-177-21 TANTAL. CHIP 1uF 10% 25V
C128 1-115-156-11 CERAMIC CHIP 1uF 10V
C301 1-126-518-11 ELECT 470uF 20% 4V
C302 1-124-430-00 ELECT 22uF 20% 4V
C303 1-126-157-11 ELECT 10uF 20% 16V
C304 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C305 1-119-750-11 TANTAL. CHIP 22uF 20% 6.3V
C306 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C307 1-126-157-11 ELECT 10uF 20% 16V
C308 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C309 1-126-157-11 ELECT 10uF 20% 16V
C310 1-124-589-11 ELECT 47uF 20% 16V
C311 1-124-589-11 ELECT 47uF 20% 16V
C312 1-126-157-11 ELECT 10uF 20% 16V
C313 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C501 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C502 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
NOTE:
•Due to standardization, replacements in the
parts list may be different from the parts speci-
fied 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
•Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order-
ing 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
C503 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C504 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C505 1-124-430-00 ELECT 22uF 20% 4V
C601 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V
C602 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C603 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C605 1-125-838-11 CERAMIC CHIP 2.2uF 10% 6.3V
C606 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C607 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C608 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C609 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C610 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V
C611 1-126-157-11 ELECT 10uF 20% 16V
< DIODE >
D301 8-719-404-50 DIODE MA111-TX
D303 8-719-057-27 LED L-132XHD (BATT)
< IC >
IC101 8-759-339-54 IC NJM2128M-TE2
IC102 6-702-440-01 IC LM4890MMX
IC501 8-759-701-51 IC NJM2072M
IC601 8-759-638-51 IC LB1979VL-TLM-E
< JACK >
J101 1-794-615-11 JACK, DC (POLARITY UNIFIED TYPE)
(DC IN 3V)
J102 1-766-847-12 JACK (MIC (PLUG IN POWER))
J103 1-766-847-12 JACK (EAR)
< TRANSISTOR >
Q301 8-729-420-50 TRANSISTOR UN5215
Q302 8-729-013-37 TRANSISTOR 2SC4213-AB-TE85L
Q303 8-729-402-96 TRANSISTOR UN5114
Q304 8-729-402-96 TRANSISTOR UN5114
Q501 8-729-402-93 TRANSISTOR UN5214
Q502 8-729-402-93 TRANSISTOR UN5214
Q601 8-729-402-93 TRANSISTOR UN5214
Q602 8-729-823-86 TRANSISTOR 2SA1745-E
Q603 8-729-402-96 TRANSISTOR UN5114
Q604 8-729-823-86 TRANSISTOR 2SA1745-E
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
When indicating parts by reference
number, please include the board.

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
17
TCM-230DV
MAIN SW
< RESISTOR >
R102 1-216-813-11 METAL CHIP 220 5% 1/10W
R104 1-216-833-11 METAL CHIP 10K 5% 1/10W
R105 1-216-837-11 METAL CHIP 22K 5% 1/10W
R107 1-216-821-11 METAL CHIP 1K 5% 1/10W
R108 1-216-817-11 METAL CHIP 470 5% 1/10W
R109 1-216-833-11 METAL CHIP 10K 5% 1/10W
R110 1-216-833-11 METAL CHIP 10K 5% 1/10W
R111 1-216-793-11 METAL CHIP 4.7 5% 1/10W
R112 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R113 1-216-837-11 METAL CHIP 22K 5% 1/10W
R115 1-216-805-11 METAL CHIP 47 5% 1/10W
R116 1-216-809-11 METAL CHIP 100 5% 1/10W
R117 1-216-805-11 METAL CHIP 47 5% 1/10W
R120 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R121 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R123 1-216-833-11 METAL CHIP 10K 5% 1/10W
R125 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R126 1-216-833-11 METAL CHIP 10K 5% 1/10W
R201 1-216-801-11 METAL CHIP 22 5% 1/10W
R301 1-216-821-11 METAL CHIP 1K 5% 1/10W
R303 1-216-837-11 METAL CHIP 22K 5% 1/10W
R304 1-216-833-11 METAL CHIP 10K 5% 1/10W
R305 1-216-817-11 METAL CHIP 470 5% 1/10W
R306 1-216-817-11 METAL CHIP 470 5% 1/10W
R309 1-216-833-11 METAL CHIP 10K 5% 1/10W
R311 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R312 1-216-833-11 METAL CHIP 10K 5% 1/10W
R313 1-216-833-11 METAL CHIP 10K 5% 1/10W
R314 1-216-817-11 METAL CHIP 470 5% 1/10W
R315 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R316 1-216-861-11 METAL CHIP 2.2M 5% 1/10W
R319 1-216-841-11 METAL CHIP 47K 5% 1/10W
R320 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R501 1-216-833-11 METAL CHIP 10K 5% 1/10W
R502 1-216-845-11 METAL CHIP 100K 5% 1/10W
R503 1-216-845-11 METAL CHIP 100K 5% 1/10W
R504 1-216-833-11 METAL CHIP 10K 5% 1/10W
R505 1-216-841-11 METAL CHIP 47K 5% 1/10W
R506 1-216-837-11 METAL CHIP 22K 5% 1/10W
R507 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R601 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R602 1-216-833-11 METAL CHIP 10K 5% 1/10W
R603 1-216-833-11 METAL CHIP 10K 5% 1/10W
R604 1-216-809-11 METAL CHIP 100 5% 1/10W
R605 1-216-857-11 METAL CHIP 1M 5% 1/10W
R606 1-216-857-11 METAL CHIP 1M 5% 1/10W
R607 1-216-821-11 METAL CHIP 1K 5% 1/10W
R609 1-216-845-11 METAL CHIP 100K 5% 1/10W
R610 1-216-857-11 METAL CHIP 1M 5% 1/10W
R611 1-216-821-11 METAL CHIP 1K 5% 1/10W
R612 1-216-833-11 METAL CHIP 10K 5% 1/10W
R613 1-216-809-11 METAL CHIP 100 5% 1/10W
R614 1-216-809-11 METAL CHIP 100 5% 1/10W
R615 1-216-833-11 METAL CHIP 10K 5% 1/10W
< VARIABLE RESISTOR >
RV101 1-225-362-11 RES, VAR, CARBON 10K/10K (VOL w)
RV601 1-241-593-11 RES, ADJ, CERMET 4.7K
RV602 1-241-593-11 RES, ADJ, CERMET 4.7K
< SWITCH >
S101 1-786-282-11 SWITCH, SLIDE (REC/PB)
S102 1-762-302-11 SWITCH, PUSH (1KEY) (POWER)
S301 1-572-922-11 SWITCH, SLIDE (PAUSE .)
S501 1-692-605-31 SWITCH, SLIDE (VOR)
< THERMISTOR (POSITIVE) >
THP601 1-810-794-11 THERMISTOR, POSITIVE
************************************************************
SW BOARD
*********
< VARIABLE RESISTOR >
RV603 1-227-445-11 RES, VAR, CARBON 30K (SPEED CONTROL)
< SWITCH >
S601 1-572-922-11 SWITCH, SLIDE (REC TIME/PLAY MODE)
************************************************************
MISCELLANEOUS
***************
HE901 1-500-515-12 HEAD, MAGNETIC (ERASE)
HRP901 1-500-717-11 HEAD, MAGNETIC (REC/PB)
M901 1-763-772-12 MOTOR, DC (CAPSTAN/REEL)
MIC901 1-542-502-11 DRIVER, MICROPHONE
SP901 1-825-233-11 SPEAKER (5cm)
************************************************************
ACCESSORIE
***********
01-477-102-11 ADAPTOR, AC (AC-E300)
1-478-440-11 BATTERY CHARGER
1-756-307-32 BATTERY, NICKEL HYDROGEN (NH-7WMAA)
3-253-050-12 MANUAL, INSTRUCTION (ENGLISH, SPANISH)
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replace only with part number specified.

TCM-230DV
REVISION HISTORY
Clicking the version allows you to jump to the revised page.
Also, clicking the version at the upper right on the revised page allows you to jump to the next revised
page.
Ver. Date Description of Revision
1.0 2004.02 New