Sony TCM-450DV User manual

TCM-450DV
US Model
Canadian Model
AEP Model
E Model
Chinese Model
Tourist Model
SERVICE MANUAL
CASSETTE-CORDER
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-877-551-02
2004E02-1
© 2004.05
SPECIFICATIONS
Ver 1.1 2004. 05
Model Name Using Similar Mechanism New
Tape transport Mechanism Type MT-450-175
Recording system
2-track 1 channel monaural
Speaker
Approx. 3.6 cm (1 7⁄16 in.) dia.
Tape speed
4.8 cm/s (1 7⁄8ips) or 2.4 cm/s (15⁄16 ips)
Variable range of the tape speed
From approx. +30% to –20% (with REC TIME/PLAY MODE
switch at “NORMAL”)
Frequency range
250 - 6,300 Hz using nomal (TYPE I) cassette
(with REC TIME/PLAY MODE switch at “NORMAL”)
Input
Microphoneinputjack(minijack/ monaural/PLUGIN POWER)
sensitivity 0.2 mV for 3 kΩor lower impedance microphone
Output
Earphone jack (minijack/ monaural) for 8 - 300 Ωearphone
Power output (at 10 % harmonic distortion)
450 mW
Power requirements
3 V DC, batteries R03 (AAA) x 2/
External DC 3 V power sources
Dimensions (w/h/d) (incl. projecting parts and controls)
Approx. 86.3 x 113.4 x 28.9 mm
(3 1⁄2x 4 1⁄2x 1 3⁄16 in.)
Mass (main unit only)
Approx. 173 g (6.2 oz.)
Supplied accessory
Carrying pouch (1)
Design and specifications are subject to change without notice.

2
TCM-450DV
TABLE OF CONTENTS
1. GENERAL ................................................................... 2
2. DISASSEMBLY.......................................................... 3
2-1. Cabinet (Rear) ......................................................... 3
2-2. Main Board ............................................................. 4
2-3. Mechanism Deck (MT-450-175)............................. 4
2-4. Belt (Counter), Belt (Cap)S,
M901 (Capstan/Reel Motor), HRP901
(REC/PB Head), HE901 (ERASE HEAD) ............. 5
2-5. Cassette Lid Assy, Led Board ................................. 5
3. MECHANICAL ADJUSTMENTS ....................... 6
4. ELECTRICAL ADJUSTMENTS ......................... 6
5. DIAGRAMS
5-1. Block Diagrams....................................................... 7
5-2. Printed Wiring Board –MAIN Section (SideA) – ..8
Printed Wiring Board –MAIN Section (Side B) – .. 9
5-3. Schematic Diagram –MAIN Section (1/2) –...........10
5-4. Schematic Diagram –MAIN Section (2/2) –...........11
5-5. IC BLOCK DIAGRAMS ........................................ 12
6. EXPLODED VIEWS
6-1. Cassette Lid, Cabinet (Rear) Section ...................... 13
6-2. Cabinet (Front) Section ...........................................14
6-3. Mechanism Deck Section-1 (MT-450-175) ............ 15
6-4. Mechanism Deck Section-2 (MT-450-175) ............ 16
7. ELECTRICAL PARTS LIST................................ 17
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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 dam-
aged by heat.
SECTION 1
GENERAL
This section is extracted from
instruction manual.
REC/BATT
REC TIME/
PLAY MODE*
VOR
TAPE COUNTER
xSTOP
mREW/REVIEW
PAUSE.
MIC (PLUG
IN POWER)*
EAR
Microphone
DC IN 3V
zREC
Tape counter
reset button
*The button/jack has a tactile dot.

3
TCM-450DV
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. CABINET (REAR)
Note: Follow the disassembly procedure in the numerical order given.
Cassette lid assy, LED board
Cabinet (front) Main board Belt (Counter), Belt (CAP) S, M901 (Capstan/reel motor),
HRP901 (REC/PB head), HE901 (ERASE head)
Set Mechanism deck
Cabinet (Rear)
1 two screws (B1.7 X 9)
7 speaker (SP1)
2 two screws (1.7 X 3)
8 cabinet (rear)
cabinet (front)
6 two screws
(B2.0)
5 Remove solder on MAIN boar
d
(two places)
3 claw
4
MAIN board
S501
RV101
RV201
knob (speed) sub assy
knob (VOL)
knob (VOR)
• On installation cabinet (rear),
adjust the S501 and knob (VOR).
• On installation cabinet (rear),
adjust the RV201 and knob
(speed) sub assy.
• On installation cabinet (rear),
adjust the RV101 and knob
(VOL).

4
TCM-450DV
2-2. MAIN BOARD
GRY
ORG
BLK
BLK
RED
RED
3 screw (B1.7 X 9)
7 MAIN board
4 screw (1.4 X 3)
5 screw (1.4 X 4.5)
cabinet (front)
1 Remove solder
(three places)
2 Remove solde
r
(eight places)
6
S301
knob (pause)
• On installation MAIN board,
adjust the S301 and knob (pause).
2-3. MECHANISM DECK (MT-450-175)
1 two screws (M1.4)
2 screw
5 spring (ground) cabinet (front)
4 mechanism dec
k
(MT-450-175)
3

5
TCM-450DV
2-4. BELT (COUNTER),BELT (CAP) S, M901 (CAPSTAN/REEL MOTOR),HRP901 (REC/PB HEAD),
HE901 (ERASE HEAD)
1 belt (counter)
2 belt (CAP) S
3 two screws (M1.4X1.4
)
5 two screws (M1.4X1.4)
7 screw (M1.4X4.5)
6 HRP901(REC/PB head)
8 HE901 (ERASE head)
4 M901 (capstan/reel motor)
2-5. CASSETTE LID ASSY, LED BOARD
• Install the cassette lid assy with
the cassette-up spring as shown
in the figure so that it fits into the
holes on the casstte lid assy.
2
4
1
Remove solder on MAIN board
(three places)
MAIN board
3 projection
5 cassette-up spring
6 cassette lid assy
7 two screws (M1.4)
8 LED board
cassette lid assy
cassette-up spring
cabinet (front)

6
TCM-450DV SECTION 3
MECHANICAL ADJUSTMENTS
Tape Tension Measurement
1. Clean the following parts with a denatured-alcohol-moistened
swab:
record/playback head pinch roller
erase head rubber belt
capstan
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.
Mode Torque Meter Meter Reading
1.97 – 3.92mN•m
FWD (20 – 40 g•cm)
CQ-102C (0.28 – 0.55 oz•inch)
0.05 – 0.49 mN•m
Forward Back (0.5– 5 g•cm)
Tension (0.007 – 0.069 oz•inch)
FF, REW CQ-201B more than 4.91 mN•m
(more than 50 g•cm)
(more than 0.69 oz•inch)
Mode Tension Meter Meter Reading
FWD CQ-403A more than 50 g
(more than 1.76 oz)
Torque Measurement
SECTION 4
ELECTRICAL ADJUSTMENTS
Tape Speed Adjustment
Mode: playback
Setting:
•Supplied voltage: 2.5 V
•Switch and control position
VOL contorl (RV101) : mechanical center
PAUSE switch (S301) : OFF
SPEED CONTROL (RV201) : center click
VOR switch (S501) : OFF
TestTape
0dB=0.775V
Type Signal Used for
WS-48A 3 kHz, 0 dB tape speed adjustment
frequency
counter
test tape
WS-48A
(3 kHz, 0 dB) 16 Ω
EAR jack (J102)
set +
–
RV602
Tape Speed Adjustment
(Double Speed)
RV601
Tape Speed Adjustment
(Normal Speed)
Procedure:
1. Set [RECTIME/PLAYMODE] switch (S601) to NORMAL
(4.8 cm/s) position, and playback the tape (WS-48A) .
2. Adjust RV601 so that frequency counter reading becomes
3,000 Hz.
Specification values: 2,985 to 3,015 Hz
3. Set [RECTIME/PLAYMODE] switch (S601) to DOUBLE
(2.4 cm/s) position.
4. Playback the tape from the beginning for two minutes, then
adjustRV602sothat frequency counterreading becomes 1,500
Hz.
Specification values: 1,493 to 1,507 Hz
Confirm that deflection of the frequency counter reading between
the beginning and the end of tape is within 2% (NORMAL: approx.
60 Hz, DOUBLE: approx. 30 Hz) .
Adjustment Location:
– MAIN BOARD (Side B) –

TCM-450DV
77
5-1. BLOCK DIAGRAM S
10 11
14
17
19
16
6
9
5
6
2
4
13
2
20
DRIVE
FEEDBACK
POWER ON
DETECT
Q901
LED
DRIVER
Q703, 706
BRAKE
SWITCH
Q601,603
F F OSC
Q704
OSC
LOGIC
CIRCUITY
S101 (5/6)
REC PB
RIPPLE
FILTER
7
1
REC
ALC
REC
VOR
START/STOP
SETECT
Q305,D301
SWITCH
Q804
J101
MIC
(PLUG IN POWER)
MIC1
MIC
S101
(2/6,3/6)
REC PB
Q301
M901
CAPSTAN/
REEL
MOTOR
D701
REC/BATT
D302
+B
REEL
PH801
HRP901
REC/PB
HEAD
HE901
ERASE
HEAD
+B
U OUT
V OUT
W OUT
VCC
U
V
W
TAPE SPEED
(NORMAL)
VCC
14
VREF
15
IN+
S/S
S601 (1/2)
REC TIME/
PLAY MODE
NORMAL
DOUBLE
PRE AMP
IC101 (1/2)
BTL POWER AMP
IC101 (2/2)
NC RFLT IN
PRE OUT
RFLT
OUT
+VDD
PRE2 IN
PRE2 NF
22 REG
REG OUT
+VREF
SP IN
ALC IN
MOTOR DRIVER
IC601
SP1
(SPEAKER)
J102
EAR
S501
VOR
OFF
ON
RV601
RV601
TAPE SPEED
(DOUBLE)
RV602
RV602
RV201
RV201
S601 (2/2)
REC TIME/
PLAY MODE
DOUBLE NORMAL
SPEED
CONTROL
FAST SLOW
S101 (6/6)
PB
REC
S101 (4/6)
REC PB
S301
PAUSE
Q802 Q407
Q408
Q409
Q413
Q412
Q402
Q405
Q410
GATE
Q402,407,409
DIFFERENTIAL DETECT
ON
OFF
RV101
VOL
D702
23
+1.7V REG.
IC102
VOUT
VDD
21
LEVEL DETECT
IC701
VOUT VDD
+VCC
+VCC
Q902
Q702
Q302
3
21
PRE1 OUT
PRE1 NF
PRE1 IN
+VREF
5
23
LED
DRIVER
Q701
+B
SWITCH
Q705
DELAY
SWITCH
DRIVE
Q602,604
REEL
ROTATION
DETECT
Q801,803
SWITCH
Q411
S102
(POWER)
J901
DC IN 3V
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
2PCS, 3V
S401
FF/REW
DETECT
S602
(FF/REW)
+B
SWITCH
Q404
+VCC
+VDD
+B
+B
BUFFER
Q401,403
GATE
Q805
S101 (6/6)
REC PB
Q303,304
MUTE
•Signal path.
E: PB
a: REC
SECTION 5
DIAGRAMS

TCM-450DV
88
5-2. PRINTED WIRING BOARD – MAIN SECTION (SIDE A) –
BOARDMAIN (SIDE A)
1
2
3
4
12
34
R802
R407
R312
PH801
R709
R708
R706
R409
R704
R717 R713
R401
R707
R702 R703
R410
R803
R113R114
R109 R115
C703
C117
C120
IC102
C606
C608
C401
C402
R107
C122
R128
R901
C501
C901
R908 R907
R902
Q902
Q901
C504
C406
C701
C114
R104 R103
R308
R608
R610
R617
R712
R614
R616
R613
R612
R307 R105
C105
C106
C610
C125
S301
S601
REC TIME
/PLAY MODE
NORMAL DOUBLE
S501
C124
Q602
Q603
Q705
Q404
E
E
E
Q805
Q410
Q402
Q702
Q701
Q703
IC701
Q601 Q604
C306
C108
C502
R310
R110R129
R111R127
Q413
S102
(POWER)
S602
(FF/REW)
Q412 Q411
E
E
E
E B C
E
C B E
E
E
E
E
EE
EEE
PAUSE .
ON OFF
t
ON
OFF
t
VOR
t
11
(11)
1-860-840-
23 4 5 6 7 89
A
1
B
C
D
E
F
Note:
•X: parts extracted from the component side.
•r: Through hole.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Partsonthepatternfacesideseenfrom
(Conductor B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component A) the parts face are indicated.
Ref. No. Location
IC102 D-7
IC701 E-3
Q402 E-4
Q410 E-4
Q411 B-6
Q412 B-6
Q413 B-6
Q601 D-3
Q602 D-3
Q603 D-3
Q604 D-3
Q701 E-3
Q702 E-3
Q703 E-2
Q705 E-3
Q805 E-3
Q901 E-6
Q902 E-6
• Semiconductor
Location

TCM-450DV
99
PRINTED WIRING BOARD – MAIN SECTION (SIDE B) –
VOL
SPEED
CONTROL
C312
C103
C115
C113
C101
C102
C104
R315
R313
R309
C107
R314
R316
R302 C301
R304
R201
R124
S101
PB
REC
R108
C308
R806
Q801
Q803
S401
(FF/REW DET) R402
R403
R716
R807
R609
R606
R611
RV101
RV201
R125
R119
IC101
R502
C309
C302
C311
C303
24 13
112
IC601
20 11
110
R118
R120
C111
C112
C307
C119
C305
C123
R311
C109
R405 R408 R406
R809
C802
R810
R714
R607
W601 W602 W603 W604
VCC
U
V
W
W704 W705 W706
SL1
W303
W201
W202
W104
W103
W304
R112
R404
R301
R808
R603 R615
R602
R601
R605
C116
C505
R102
R305
R303
R318
C803
C601
C604
C607
C602
C801
C404
C705
C609
C403
C405
C605
C706
C704
C315
C314
Q409
Q303
Q405
Q408
Q804
Q407
Q403
1
E
E
E
E
E
E
E
E
E
E
E
E
23
123
Q401
Q706
BEB
C C
Q704
Q802
Q305
Q304
Q302
Q301
D301
D801
D302
THP601
RV601 RV602
TP14
TP27
TP13
TP4
J101
TP3
TP11
TP33
J102
TP30
TP18
TP17
TP20
TP19
TP21
TP15
TP23
TP34 TP12 TP801
TP804
TP10
TP26 TP28
TP32 TP22
TP25
TP29
TP31
J901
TP805
TP803
TP802
TP16
TP24
11
(11)
1-860-840-
11
(11)
1-860-841-
(SIDE B)BOARDMAIN
BOARDLED
HE901
ERASE HEAD
HRP901
RECORD/
PLAYBACK
HEAD
MIC1
MIC
(PLUG IN POWER)
EAR
W
V
U
VCC
M901
CAPSTAN/REEL
MOTOR
DC IN 3V
E
-1
-4 -5 -6
-2 -3
E
E
E
SP1
SPEAKER
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
2PCS, 3V
M703
M702
M701
D702
D701
REC
/BATT
23 4 5 6 7 89 10
A
1
B
C
D
E
F
Ref. No. Location
D301 B-3
D302 B-3
D701 F-4
D702 F-6
D801 E-5
IC101 E-4
IC601 C-7
Q301 B-3
Q302 B-3
Q303 E-5
Q304 B-3
Q305 B-3
Q401 D-7
Q403 E-7
Q404 E-6
Q405 E-5
Q407 D-7
Q408 E-7
Q409 E-6
Q704 D-7
Q706 D-8
Q801 E-5
Q802 D-6
Q803 E-6
Q804 E-6
• Semiconductor
Location

TCM-450DV
1010
5-3. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) –
IC101
D301
S601(2/2)
D302
C101
C102
C103 C104
C108
C504
C308
C309
C312
C303
C305
C307 C114
R304
R305
S501
R312
R201
R112
R113
R114
C119
R120
R311
R310
R315
R316
C113
C115
C401
C402
R109
R115
C124 C125
C123
C120
R303
R102
C105
R104
C106
R105
R308
C107
C109
C302
R901
R907 R908
C901
R110 R127
R129
C122
R128
R111
C116
C117
C501
R125
R405
R406
R407
R408
R314
R301
C111
R108
C112
C306
S602
R410
R103
R107
R307
R318
S101(2/6)
S101(3/6)
S101(5/6)
S101(6/6)
S101(4/6)
J102
J101
IC102
R313
S301
Q902
Q901
RV101
Q301
Q411
Q305
Q303
Q404
R119
R124
R118
R902
Q302
SP1
C301
R309
Q413
Q412
Q405
Q402
HRP901
C502
R502 C505
R302
C311
Q304
MIC1
HE901
BH3682FV
1SS355TE-17
1SS355TE-17
0.1
0.1
0.01 0.01
10
10V
0.01
2.2
10
10V
10
10V
220
4V
2.2
4.7
4V 0.22
10k
22k
22
22
2.2k
2.2k
220k
0.01
1k
1M
470
4.7k
4.7k
10
10V
1
1
1
470
470
10
10V 10
10V
0.01
0.01
2.2k
100k
4700p
100k
0.01
47k
22k
1
16V
2200p
10
10V
2.2k
220k 47k
1
22k 22k
47k
0.22
470
22k
0.022
1000p
1
2.2k
1k
100k
4.7k
10k
1k
470
4700p
1k
1
10
10V
(FF/REW)
22k
10k
220
22k
22k
MM3031HULE
2.2k
2SA1576A
SWITCH
2SC4081T106Q
POWER ON
DETECT
5k
DTC114TUA-T106
SWITCH
DTA114YUA-T106
SWITCH
2SA1576A-T106-QR
START/STOP
SELECT
DTC114YUA-T106
MUTE
2SA1576A-T106-QR
+B SWITCH
470
220
220
220k
DTC144EUA-T106
BUFFER
22
6.3V
10k
DTC114YUA-T106
INVERTER
DTC114YUA-T106
INVERTER
2SC4081T106Q
INVERTER
DTA114YUA-T106
DIFFERENTIAL
DETECT
4.7
4V
10k 0.047
2.2k
470
4V
2SC4213-AB-TE85L
MUTE
MIC
GND
VOR
ALC
PH
POWER
VCC
PAUSE
GATE
REEL
GND
VDD
CE
VOUT
PB REC
PB REC
PB REC
PB REC
ON
OFF
VOR
ON
OFF
VOL
EAR
MIC
(PLUG IN POWER)
PRE AMP
BTL POWER
AMP
+1.7V REG.
REC
PB
PAUSE
SPEAKER
HEAD
RECORD/
PLAYBACK
HEAD
ERASE
PRE1 NF
REG OUT
PRE1 OUT
PRE2 IN
VOR TAU
VOR C
VOR IN
VOR OUT
SP BIAS
SP2 OUT
PWR VCC
PRE1 IN
PRE GND
PRE2 NF
VOR CTRL
PRE2 OUT
ALC TAU
ALC DETIN
SP IN
SP1 OUT
SP GND
PRE VCC
RFLTIN
RFLTOUT

TCM-450DV
1111
5-4. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) –
IC601
S601(1/2)
C601 C607
C609
C602
C606
C608
C701
C703
C605
R717
R702
R703
R706
R707
R708
D701
D702
R607
R714
R713 R716
R712
C704
C705
Q801
Q803
R704
R709
C706
C801
R806
C314
C315
R601
R603 R605
R615
R608 R610
R606
R609
R612 R613
R617
R616
R614
C610
C802
R809
R810
C405
R402
R403
C403
C404
R404
C803
R807
R808
R401
C406 R409
R611
S102
S401
S101(1/6)
IC701
THP601
R602
Q701
Q702
Q704
Q706
Q703
Q603
Q601
Q602
Q604
RV201
RV602
RV601
Q804
Q805
Q401
Q403
Q705
Q410
D801
PH801
J901
Q802
Q408
Q407
Q409
R802
R803
C604
LB1979VS-TLM-E
0.47 0.047
0.22
0.047
0.047
0.047
0.47
1
10
10V
4.7k
1k
220
1k
1M
2.2k
BR1113F-TR
FY1113F-TR
1M
22k
22k 470k
470k
1
1
2SC4081T106Q
2SC4081T106Q
220k
1k
22
6.3V
0.1
1M
470
4V
1000p
470
10k 10k
47k
1M 1M
2.2k
100k
100 100
47k
10k
10k
10
10V
10
10V
1M
220k
10
10V
47k
10k
1
1
22k
1
47k
220k
22k
2.2 100k
10k
(POWER)
(FF/REW DET)
PST3720UL
3.3K
0
XP4601-TXE
LED DRIVER
DTC114TUA-T106
INV.
XP1501-TXE
FF OSC
DTC114YUA-T106
LED DRIVER
DTA114YUA-T106
LED DRIVER
2SA1745-TL-E
BRAKE
SWITCH
2SA1745-TL-E
BRAKE
SWITCH
2SC4081T106Q
SWITCH
DRIVE
DTA114YUA-T106
SWITCH
DRIVE
30k
2.2k
4.7k
DTA114TUA-T106
SWITCH
2SC4081T106Q
GATE
2SA1576A-T106-QR
BUFFER
DTC114YUA-T106
BUFFER
DTA114TUA-T106
+B SWITCH
2SA1576A-T106-QR
GATE
1SS355TE-17
DTA114YUA-T106
INVERTER
DTC114YUA-T106
INVERTER
DTA114YUA-T106
DIFFERENTIAL
DETECT
DTC114YUA-T106
DIFFERENTIAL
DETECT
220
47k
2.2
GND
VOR
ALC
PH
VCC
POWER
PAUSE
GATE
REEL
WB
VCC
NC
U OUT
P-GND
VB
UB
GND
WOUT
V OUT
FC GND
FC
R1
OUT
IN+
VREF
COM
OSC
VSP
S/S
V OUT
VDD
VSS
NC
DC IN 3V
MOTOR
M901
CAPSTAN/REEL
PB REC
DRY BATTERY
SIZE"AAA"
(IEC DESIGNATION R03)
2PCS,3V
/BATT
REC
MOTOR
DRIVER
LEVEL DETECT
DETECT
Q801,803
REEL
ROTATION
SPEED
CONTROL
TAPE SPEED
TAPE SPEED
(NORMAL)
(DOUBLE)

TCM-450DV
1212
IC101 BH3682FV
5-5. IC BLOCK DIAGRAMS
IC601 LB1979VL-TLM-E
Note on schematic diagrams
•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 W and 1/4 W or less unless otherwise specified.
•A: B+ Line.
•H: adjustment for repair.
•Power voltage is dc 3V and fed with regulated dc power supply
frombattery terminal .
•Voltages are dc with respect to ground under no-signal conditions.
no mark : PLAY
( ) : REC
•Signal path.
E: PB
a: REC
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production toler-
ances.
•Circled numbers refer to waveforms.
1211109
8
765431
131415
16171819
20
21
22
23
24
PREVCC
PREINF
RFLTOUT
RFLTIN
REG
PRE1OUT
MICALCIN
VORTAU VORC VORIN
VOROUT
REC/BIAS REC/SP2OUT
PWRVCC
PREIIN
GND
ALCNF
VORCTRL
MICALCOUT
ALCTAU
ALCDETIN
REC/SPIN
REC/SP1OUT
SPGND
BH3682FV
TapeRecorder
PRE/PWR
MIC/REC
PREVCC
PWRCTRL
PRE1
31dB
MICALC/PRE2
delta: 40dB
BIAS
26dB
PWRVCC
INV
VORCTRL
PRE PWR
POM
37dB
REC/POWER
22dBSE 0dBSE
REC
ALC
REG RBC
VOR
RIPL
2
+
-
+-
ZZ
INV
235
4678910
1
11
12
13
14
15
16
17
181920
SOFT
SW MIX
CURRENT/MOTIVE
LOGIC
WAVEFORM
DETECT
PRE
DRIVER
OUTPUT
CURRENT DETECT
SPEED
DETECT REFERENCE VOLTAGE
FOR SPEED CONTROL
POWER SUPPLY
BIAS
REFERENCE
VOLTAGE
OSCILLATOR
CIRCUIT
MOTIVE POWER
DETECT
+
–
FC GND FC RI OUT VSP IN+ VREF S/S COM OSC
WB
VCC
NC
U OUT
V OUT
W OUT
P-GND
VB
UB
GND
•WAVEFORMS
IC601 qa OSC
VOL/DIV : 20m V AC
TIME/DIV : 0.5 msec
1
40mVp-p
1.6msec

13
TCM-450DV
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
SECTION 6
EXPLODED VIEWS
6-1. CASSETTE LID, CABINET (REAR) SECTION
NOTE:
•-XX, -X mean standardized parts, so they may
have some differences from the original one.
•Items marked “*” are not stocked since they
are seldom required for routine service. Some
delayshouldbeanticipatedwhenorderingthese
items.
•Themechanicalparts with no reference number
in the exploded views are not supplied.
•Hardware (# mark) list and accessories are
given in the last of this parts list.
•Abbreviation
CND: Canadian model
EE : East European model
CH : Chinese model
JEW: Tourist model
1
4
5
68
2
10
11
12
13
14
9
23
2
7
SP1
1X-3385-017-1 LID SUB ASSY, CASSETTE
23-893-942-41 SCREW (1.7X3), TAPPING (B)
33-258-991-01 SPRING, CASSETTE-UP
*41-860-841-11 LED BOARD
53-225-873-09 SCREW (M1.4)
61-860-842-11 FLEXIBLE BOARD
73-318-203-97 SCREW (B1.7X9), TAPPING
83-034-792-11 SCREW, TAPPING (B2.0)
93-261-026-01 SPRING (GROUND) (2)
10 3-261-028-01 SPRING (GROUND) (3)
11 X-3385-015-1 KNOB (SPEED) SUB ASSY
12 X-3385-018-1 REAR SUB ASSY, CABINET
13 3-258-983-01 KNOB (VOL)
14 3-258-996-01 KNOB (VOR)
SP1 1-825-657-11 SPEAKER (3.6cm)
Ver 1.1

14
TCM-450DV
6-2. CABINET (FRONT) SECTION
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
51
66
70
71
75
74
72
73
67 68
69
52
53
54
55
56
57
58
60 61
59
62
64
65
MIC1
not supplied
74
74
51 3-258-976-01 BUTTON (FF)
52 3-258-977-01 BUTTON (REW)
53 3-258-975-01 BUTTON (PLAY)
54 3-258-974-01 BUTTON (STOP)
55 3-258-973-01 BUTTON (REC)
56 3-258-978-01 LEVER (PAUSE)
57 3-258-971-01 KNOB (REC TIME)
58 3-258-986-01 CUSHION, MICROPHONE
59 3-258-987-01 CASE, MICROPHONE
60 3-258-970-01 KNOB (PAUSE)
61 3-703-816-14 SCREW (M1.4)
62 3-925-231-01 REFLECTOR
64 X-3385-016-1 FRONT SUB ASSY, CABINET (US, CND, E, CH,
JEW)
64 X-3385-019-1 FRONT SUB ASSY, CABINET (AEP, EE)
65 3-258-985-01 SPRING (GROUND)
66 3-258-984-01 TERMINAL (-), BATTERY
67 3-261-019-01 COVER, BATTERY TERMINAL
68 3-258-981-01 TERMINAL (+), BATTERY
69 3-258-982-01 LID, BATTERY CASE
*70 A-4541-638-A MAIN BOARD, COMPLETE
71 X-3384-947-1 PLATE (BATTERY SHAFT) ASSY
72 3-345-648-01 SCREW (M1.4X3)
73 3-318-203-97 SCREW (B1.7X9), TAPPING
74 3-831-441-99 SPACER, KNOB
75 3-254-083-01 SCREW (M1.4 X 4.5)
MIC1 1-476-484-31 MICROPHONE UNIT, ELECTRET CAP
Ver 1.1

15
TCM-450DV
6-3. MECHANISM DECK SECTION-1 (MT-450-175)
107
101
102
110
111
112
113
116
115
114
103
104
105 101
106
HRP901
HE901
M901
not
supplied
not
supplied
108
109
(included in No.151)
A (included in No.151)
z
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
101 3-703-816-16 SCREW (M1.4X2.5), SPECIAL HEAD
102 3-234-858-01 BELT (COUNTER)
103 3-258-979-01 BRACKET (COUNTER)
104 1-548-582-11 COUNTER, TAPE (SMALL TYPE)
105 3-703-925-41 SCREW (M1.4)
106 3-703-816-23 SCREW (M1.4X4.5), SPECIAL HEAD
107 3-231-358-01 WASHER
108 3-234-861-02 GUIDE (ARO), TAPE
109 3-019-776-03 GEAR (REEL-S)
110 X-3379-882-3 PINCH (N) ASSY, ARM
111 3-703-816-08 SCREW (M1.4X1.4), SPECIAL HEAD
112 3-265-409-01 BELT (CAP) (S)
113 X-3379-877-2 FLY ASSY (AR), CAPSTAN
114 3-386-694-01 WASHER
115 3-029-278-01 WASHER
116 3-029-275-01 WASHER (STOPPER N)
HE901 1-500-515-12 HEAD, MAGNETIC (ERASE)
HRP901 1-500-823-11 HEAD, MAGNETIC (RECODE/PLAYBACK)
M901 1-787-098-11 MOTOR, DC (CAPSTAN/REEL) (including PULLEY)

16
TCM-450DV
6-4. MECHANISM DECK SECTION-2 (MT-450-175)
(Including A,109)
151
152
153
154
155
156
157
158
159
160
162
163
164 166
161
z
not
supplied
165
164
167
168
169
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
151 X-3384-292-1 CHASSIS ASSY (ARO) (S)
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 3-261-398-01 REFLECTOR (450)
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 3-321-813-71 WASHER, COTTER POLYETHYLENE
164 3-315-384-31 WASHER, STOPPER
165 3-344-901-01 WASHER, STOPPER
166 X-3379-881-3 CLUTCH ASSY (AR)
167 3-225-388-04 GEAR (D)
168 3-225-394-04 LEVER (FF ROTARY)
169 3-225-444-01 SPRING (FR ROTARY), TENSION

17
TCM-450DV
SECTION 7
ELECTRICAL PARTS LIST
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
NOTE:
•Due to standardization, replacements in the
parts list may be different from the parts
specifiedinthe diagrams or the components
used on the set.
•-XX, -X mean standardized parts, so they
may have some difference from the original
one.
•Itemsmarked“*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
•CAPACITORS:
uF:µF
•RESISTORS
All resistors are in ohms.
METAL: metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F: nonflammable
•COILS
uH: µH
•SEMICONDUCTORS
In each case, u: µ, for example:
uA...: µA... , uPA... , µPA... ,
uPB... , µPB... , uPC... , µPC... ,
uPD..., µPD...
When indicating parts by reference
number, please include the board.
•Abbreviation
CND: Canadian model
EE : East European model
CH : Chinese model
JEW: Tourist model
*1-860-841-11 LED BOARD
*********
1-860-842-11 PWB, FLEXIBLE
< DIODE >
D701 8-719-081-41 DIODE BR1113F-TR (REC/BATT)
D702 8-719-075-57 DIODE FY1113F-TR (E)
******************************************************
*A-4541-638-A MAIN BOARD, COMPLETE
*******************
< CAPACITOR >
C101 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C102 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C103 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C104 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C105 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C106 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C107 1-135-177-21 TANTALUM CHIP 1uF 20% 20V
C108 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C109 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C111 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C112 1-115-156-11 CERAMIC CHIP 1uF 10V
C113 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C114 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V
C115 1-115-156-11 CERAMIC CHIP 1uF 10V
C116 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C117 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C119 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C120 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C122 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V
C123 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C124 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C125 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C301 1-119-750-11 TANTAL. CHIP 22uF 20% 6.3V
C302 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C303 1-124-434-00 ELECT 220uF 20% 4V
C305 1-135-834-91 CERAMIC CHIP 2.2uF 6.3V
C306 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C307 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V
C308 1-135-834-91 CERAMIC CHIP 2.2uF 6.3V
C309 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C311 1-126-518-11 ELECT 470uF 20% 4V
C312 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C314 1-126-518-11 ELECT 470uF 20% 4V
C315 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C401 1-115-156-11 CERAMIC CHIP 1uF 10V
C402 1-115-156-11 CERAMIC CHIP 1uF 10V
C403 1-115-156-11 CERAMIC CHIP 1uF 10V
C404 1-115-156-11 CERAMIC CHIP 1uF 10V
C405 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C406 1-135-834-91 CERAMIC CHIP 2.2uF 6.3V
C501 1-115-156-11 CERAMIC CHIP 1uF 10V
C502 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V
C504 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C505 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C601 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V
C602 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C604 1-125-838-11 CERAMIC CHIP 2.2uF 10% 6.3V
C605 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C606 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C607 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C608 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C609 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V
C610 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C701 1-113-619-11 CERAMIC CHIP 0.47uF 10V
C703 1-115-156-11 CERAMIC CHIP 1uF 10V
C704 1-115-156-11 CERAMIC CHIP 1uF 10V
C705 1-115-156-11 CERAMIC CHIP 1uF 10V
C706 1-119-750-11 TANTAL. CHIP 22uF 20% 6.3V
C801 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C802 1-104-851-11 TANTAL. CHIP 10uF 20% 10V
C803 1-115-156-11 CERAMIC CHIP 1uF 10V
C901 1-115-156-11 CERAMIC CHIP 1uF 10V
< DIODE >
D301 8-719-988-61 DIODE 1SS355TE-17
D302 8-719-988-61 DIODE 1SS355TE-17
D801 8-719-988-61 DIODE 1SS355TE-17
< IC >
IC101 6-704-794-01 IC BH3682FV
IC102 6-705-813-01 IC MM3031HULE
IC601 8-759-638-51 IC LB1979VS-TLM-E
IC701 6-704-872-01 IC PST3720UL
LED MAIN
Ver 1.1

18
TCM-450DV
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
MAIN
< JACK >
J101 1-793-430-11 JACK, SMALL TYPE (MIC(PLUG IIN POWER))
J102 1-785-791-11 JACK (EAR)
J901 1-794-615-11 JACK,DC (POLARITY UNIFIED TYPE) (DC IN 3V)
< REFLECTOR >
PH801 8-749-016-61 REFLECTOR NJL5197K-W-F20 (TE1)
< TRANSISTOR >
Q301 8-729-028-97 TRANSISTOR DTC114TUA-T106
Q302 8-729-029-14 TRANSISTOR DTC144EUA-T106
Q303 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q304 8-729-013-37 TRANSISTOR 2SC4213-AB-TE85L
Q305 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR
Q401 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR
Q402 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q403 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q404 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR
Q405 8-729-905-34 TRANSISTOR 2SC4081T106Q
Q407 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q408 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q409 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q410 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR
Q411 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q412 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q413 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q601 8-729-823-86 TRANSISTOR 2SA1745-TL-E
Q602 8-729-602-21 TRANSISTOR 2SC4154TP-1EF
Q603 8-729-823-86 TRANSISTOR 2SA1745-TL-E
Q604 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q701 8-729-427-74 TRANSISTOR XP4601-TXE
Q702 8-729-028-97 TRANSISTOR DTC114TUA-T106
Q703 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q704 8-729-429-44 TRANSISTOR XP1501-TXE
Q705 8-729-028-74 TRANSISTOR DTA114TUA-T106
Q706 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q801 8-729-905-34 TRANSISTOR 2SC4081T106Q
Q802 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q803 8-729-905-34 TRANSISTOR 2SC4081T106Q
Q804 8-729-028-74 TRANSISTOR DTA114TUA-T106
Q805 8-729-905-34 TRANSISTOR 2SC4081T106Q
Q901 8-729-905-34 TRANSISTOR 2SC4081T106Q
Q902 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR
< RESISTOR >
R102 1-216-845-11 METAL CHIP 100K 5% 1/10W
R103 1-216-833-11 METAL CHIP 10K 5% 1/10W
R104 1-216-845-11 METAL CHIP 100K 5% 1/10W
R105 1-216-841-11 METAL CHIP 47K 5% 1/10W
R107 1-216-813-11 METAL CHIP 220 5% 1/10W
R108 1-216-821-11 METAL CHIP 1K 5% 1/10W
R109 1-216-817-11 METAL CHIP 470 5% 1/10W
R110 1-216-837-11 METAL CHIP 22K 5% 1/10W
R111 1-216-837-11 METAL CHIP 22K 5% 1/10W
R112 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R113 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R114 1-216-849-11 METAL CHIP 220K 5% 1/10W
R115 1-216-817-11 METAL CHIP 470 5% 1/10W
R118 1-216-813-11 METAL CHIP 220 5% 1/10W
R119 1-216-817-11 METAL CHIP 470 5% 1/10W
R120 1-216-821-11 METAL CHIP 1K 5% 1/10W
R124 1-216-813-11 METAL CHIP 220 5% 1/10W
R125 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R127 1-216-837-11 METAL CHIP 22K 5% 1/10W
R128 1-216-817-11 METAL CHIP 470 5% 1/10W
R129 1-216-841-11 METAL CHIP 47K 5% 1/10W
R201 1-216-801-11 METAL CHIP 22 5% 1/10W
R301 1-216-817-11 METAL CHIP 470 5% 1/10W
R302 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R303 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R304 1-216-833-11 METAL CHIP 10K 5% 1/10W
R305 1-216-837-11 METAL CHIP 22K 5% 1/10W
R307 1-216-837-11 METAL CHIP 22K 5% 1/10W
R308 1-216-837-11 METAL CHIP 22K 5% 1/10W
R309 1-216-833-11 METAL CHIP 10K 5% 1/10W
R310 1-216-817-11 METAL CHIP 470 5% 1/10W
R311 1-216-857-11 METAL CHIP 1M 5% 1/10W
R312 1-216-801-11 METAL CHIP 22 5% 1/10W
R313 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R314 1-216-821-11 METAL CHIP 1K 5% 1/10W
R315 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R316 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R318 1-216-837-11 METAL CHIP 22K 5% 1/10W
R401 1-216-837-11 METAL CHIP 22K 5% 1/10W
R402 1-216-841-11 METAL CHIP 47K 5% 1/10W
R403 1-216-833-11 METAL CHIP 10K 5% 1/10W
R404 1-216-837-11 METAL CHIP 22K 5% 1/10W
R405 1-216-821-11 METAL CHIP 1K 5% 1/10W
R406 1-216-845-11 METAL CHIP 100K 5% 1/10W
R407 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R408 1-216-833-11 METAL CHIP 10K 5% 1/10W
R409 1-216-845-11 METAL CHIP 100K 5% 1/10W
R410 1-216-837-11 METAL CHIP 22K 5% 1/10W
R502 1-216-833-11 METAL CHIP 10K 5% 1/10W
R601 1-216-817-11 METAL CHIP 470 5% 1/10W
R602 1-216-864-11 METAL CHIP 0 5% 1/10W
R603 1-216-833-11 METAL CHIP 10K 5% 1/10W
R605 1-216-833-11 METAL CHIP 10K 5% 1/10W
R606 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R607 1-216-857-11 METAL CHIP 1M 5% 1/10W
R608 1-216-857-11 METAL CHIP 1M 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 1-216-833-11 METAL CHIP 10K 5% 1/10W
R612 1-216-809-11 METAL CHIP 100 5% 1/10W
R613 1-216-809-11 METAL CHIP 100 5% 1/10W
R614 1-216-833-11 METAL CHIP 10K 5% 1/10W
R615 1-216-841-11 METAL CHIP 47K 5% 1/10W
R616 1-216-833-11 METAL CHIP 10K 5% 1/10W
R617 1-216-841-11 METAL CHIP 47K 5% 1/10W
R702 1-216-821-11 METAL CHIP 1K 5% 1/10W
R703 1-216-813-11 METAL CHIP 220 5% 1/10W
R704 1-216-849-11 METAL CHIP 220K 5% 1/10W
R706 1-216-821-11 METAL CHIP 1K 5% 1/10W

19
TCM-450DV
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
R707 1-216-857-11 METAL CHIP 1M 5% 1/10W
R708 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R709 1-216-821-11 METAL CHIP 1K 5% 1/10W
R712 1-216-853-11 METAL CHIP 470K 5% 1/10W
R713 1-216-837-11 METAL CHIP 22K 5% 1/10W
R714 1-216-837-11 METAL CHIP 22K 5% 1/10W
R716 1-216-853-11 METAL CHIP 470K 5% 1/10W
R717 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R802 1-216-813-11 METAL CHIP 220 5% 1/10W
R803 1-216-841-11 METAL CHIP 47K 5% 1/10W
R806 1-216-857-11 METAL CHIP 1M 5% 1/10W
R807 1-216-841-11 METAL CHIP 47K 5% 1/10W
R808 1-216-849-11 METAL CHIP 220K 5% 1/10W
R809 1-216-857-11 METAL CHIP 1M 5% 1/10W
R810 1-216-849-11 METAL CHIP 220K 5% 1/10W
R901 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R902 1-216-849-11 METAL CHIP 220K 5% 1/10W
R907 1-216-849-11 METAL CHIP 220K 5% 1/10W
R908 1-216-841-11 METAL CHIP 47K 5% 1/10W
< VARIABLE RESISTOR >
RV101 1-227-612-11 RES, VAR, CARBON 5K (VOL)
RV201 1-227-445-11 RES, VAR, CARBON 30K (SPEED CONTROL)
RV601 1-241-593-11 RES, ADJ, CERMET 4.7K
(TAPE SPEED (NORMAL))
RV602 1-225-868-21 RES, ADJ, CERMET 2.2K
(TAPE SPEED (DOUBLE))
< SWITCH >
S101 1-786-282-11 SWITCH, SLIDE (PB/REC)
S102 1-572-688-11 SWITCH, PUSH (1 KEY) (POWER)
S301 1-572-922-11 SWITCH, SLIDE (PAUSE .)
S401 1-762-594-41 SWITCH, PUSH (1 KEY) (FF/REW DET)
S501 1-572-922-11 SWITCH, SLIDE (VOR)
S601 1-571-277-51 SWITCH, SLIDE (REC TIME/PLAY MODE)
S602 1-572-688-11 SWITCH, PUSH (1 KEY) (FF/REW)
< THERMISTOR >
THP601 1-810-794-11 THERMISTOR, POSITIVE
******************************************************
MISCELLANEOUS
*************
61-860-842-11 FLEXIBLE BOARD
104 1-548-582-11 COUNTER, TAPE (SMALL TYPE)
M901 1-787-098-11 MOTOR, DC (CAPSTAN/REEL) (including PULLEY)
MIC1 1-476-484-31 MICROPHONE UNIT, ELECTRET CAP
HE901 1-500-515-12 HEAD, MAGNETIC (ERASE)
HRP901 1-500-823-11 HEAD, MAGNETIC (RECODE/PLAYBACK)
SP1 1-825-657-11 SPEAKER (3.6cm)
******************************************************
ACCESSORIES
***********
3-220-749-21 CASE,CARRYING
3-261-017-11 MANUAL,INSTRUCTION
(ENGLISH,FRENCH,SPANISH) (AEP,CND,US)
3-261-017-21 MANUAL,INSTRUCTION
(PORTUGUESE,FINNISH,SWEDISH) (AEP)
3-261-017-31 MANUAL,INSTRUCTION
(GERMAN,ITALIAN,DUTCH) (AEP)
3-261-017-51 MANUAL,INSTRUCTION
(ENGLISH,RUSSIAN,SLOVAKIAN) (EE,JEW)
3-261-017-61 MANUAL,INSTRUCTION
(CZECH,HUNGRIAN,POLISH) (EE)
3-261-017-71 MANUAL,INSTRUCTION
(ENGLISH,SIMPLIFIED,CHINESE) (CH)
3-261-017-81 MANUAL,INSTRUCTION
(TRADITIONAL CHINESE,KOREAN) (JEW)
MAIN
Ver 1.1

TCM-450DV
REVISION HISTORY
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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 2004.01 New
1.1 2004.05 Addition of Chinese model.