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WM-EX20
SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Tourist Model
Ver 1.0 1999. 08
Manufactured under license from Dolby Laboratories
Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks
of Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism
NEW
Tape Transport Mechanism Type
MT-WMEX20-162
SPECIFICATIONS
Tape section
Frequency response
(Dolby NR off)
Output
General
Power requirements
Dimensions (w/h/d)
Mass
Supplied accessories
Playback: 30 – 18,000 Hz
Headphones (REMOTE 2 jack)
Load impedance 8 – 300 Ω
1.5 V
One rechargeable battery or
one R6 (size AA) battery
Approx. 78.7 × 108.6 × 18.7 mm
(31/8 × 43/8 × 3/4 inches), incl.
projecting parts and controls
Approx. 180 g (6.4 oz)
Approx. 240 g (8.5 oz) (incl.
rechargeable battery and a cassette)
Battery case (1)
Stereo earphones with remote control (1)
Battery charger (1)
US, CND model : BC-7DC
AEP, FR model : BC-7DY
E, JE model : BC-7HT
UK model : BC-7S
AUS model : BC-7SG
KR model : BC-9HR
Rechargeable battery (1)
US, CND, AEP, UK, FR, AUS model :
NC-6WM, 1.2V, 600mAh, Ni-Cd
KR, E, JE model:
NH-14WM, 1.2V, 1400mAh, Ni-MH
Rechargeable battery carrying case (1)
Carrying pouch (1)
E, JE, model:
AC plug adaptor (1)
Design and specifications are subject to change without notice
• Abbreviation
CND : Canadian model
FR : French model
AUS : Australian model
KR : Korea model
JE : Tourist model
CASSETTE PLAYER
MICROFILM
SECTION 1
GENERAL
TABLE OF CONTENTS
1. GENERAL ·········································································· 2
This section is extracted
from instruction manual.
2. SERVICE NOTE ······························································· 3
3. DISASSEMBLY
3-1. Lid Assy, Cassette ··························································· 5
3-2. Case ················································································· 5
3-3. Ornament (Open) Block Assy ········································· 6
3-4. “Sub Board”, “Switch, Leaf”, “Main Board” ················· 6
3-5. Belt (F KAI), Motor (M601) ··········································· 7
3-6. Holder Assy ····································································· 7
3-7. Pinch Lever (N)/(R) Assy ··············································· 8
3-8. Magnetic Head (HP701) ················································· 8
4. MECHANICAL ADJUSTMENT ·································· 9
5. ELECTRICAL ADJUSTMENT ···································· 9
6. DIAGRAMS
6-1. Block Diagram ······························································ 10
6-2. Printed Wiring Board ···················································· 12
6-3. Schematic Diagram (1/2) ·············································· 15
6-4. Schematic Diagra (2/2) ················································· 18
6-5. IC Block Diagrams ······················································· 21
6-6. IC Pin Function Discription ·········································· 23
1
2
3
4
5
6
7
∑ VOL knob
2 REMOTE jack
Operation button
HOLD/OPERATION knob
OPEN knob
Dry battery case contact
Rechargeable battery compartment
8
9
0
!¡
!™
!£
!¢
!∞
!§
Headphones plug
DISPLAY window
SOUND button
MODE button
HOLD button
9((PLAY), p(STOP), button
FF button
REW button
VOL knob
7. EXPLODED VIEWS
7-1. Cabinet Block, Main Board ·········································· 25
7-2. Mechanism Deck Block ················································ 26
8. ELECTRICAL PARTS LIST ······································· 27
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.
Flexible Circuit Board Repairing
• Keep the temperature of 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.
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE ! SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
—2—
SECTION 2
SERVICE NOTE
[Service Mode]
The service mode enables to operate the mechanism of WM-EX20
while the MAIN board is opened.
Rotation of the idler gear (A) (S side) is detected using the photoreflector (PH702) in the WM-EX20. PH702 is located on the MAIN
board, therefore the rotation of the idler gear (A) (S side) cannot be
detected by PH702 when the MAIN board is removed. As a result,
the motor cannot be controlled and cannot run correctly.
To repair the machine after the MAIN board is removed while the
main power is turned on, follow the procedures as described below.
1. Setting
1) Remove the cabinets referring to section “3. DISASSEMBLY”.
Open the MAIN board.
2) Connect the motor (M601) and the plunger solenoid (PM701)
to the MAIN board using the jumper wires. When the extension
jig (1-769-143-11) (10 wires as a set) is used, they can be
connected easily.
3) Short the TAPE IN switch land (BP1) with solder. Input a square
(or sine) wave of 10 Hz (at 1.3 Vp-p) to both PH IN T land
(TP37) and PH IN S land (TP36) with jumper wire.
4) Connect DC 1.3 V from external regulated power supply to ‘
and ’ terminals of the battery.
2. PRE-SET status
The set must be in this state before the PLAY, FF and REW modes
can be entered.
1) Make sure that the slider (F/R) is in the center position and that
the F/R switch (S702) is in the center position. Make sure that
the reel gear does not rotate by rotating the flywheel on the F
side clockwise. If improper, place the set in the preset state
according to the following instructions:
2) Repeat the step below some times to ensure the above
conditions.
* Pull away the trigger level from the plunger with tweezers or
other means. Then rotate the flywheel on the F side clockwise.
3) Turn the stabilized power supply OFF once and then ON.
3. FF, REW modes
1) Check for “2. Preset state” and push the FF switch and the
REW switch.
2) Move the F/R switch (S702) to the movement of the slider to
enter the FF/REW mode.
4. PLAY mode
1) Check for “2. Preset state”.
2) Push the 9( switch on the remote commander to move the
lever (SW) toward the R side. With timing to this, move the F/
R switch (S702) to enter the PLAY (R side) mode.
Note 1: If failed, retry from the preset state.
Note 2: The 9(, p, FF, and REW switches on the remote
commander should be used whenever possible.
– MAIN BOARD (SIDE B) —
TAPE IN
SWITCH
(S704-1)
ATS
SWITCH
(S704-2)
Plunger (PM701)
BP1
Battery terminal ’
AF OSC
Square wave
(sine wave)
10 Hz, -3.5 dBs
Battery terminal ‘
S PH IN(S)(TP36)
T PH IN(S)(TP37)
jumper
M M601
GND
(S702)
FWD←CNT→REV
—3—
[ Slider (NR) ]
slider (NR)
F side
flywheel
center
F side
R side
[ Rotational system ]
1. Rotational System of PLAY Mode
2. Rotational System of FF Mode
idler gear (A) (S side)
gear (reel) (S side)
idler gear (A) (T side)
motor pulley
gear (NR)
FWD REV
gear (reel) (T side)
gear (reel) (T side)
clutch
assy (F)
gear (Y)
idler gear (A) (T side)
motor pulley
gear (FR)
gear (Y)
clutch
assy (F)
idler gear (B)
insert flywheel (N)
insert flywheel (R)
insert flywheel (N)
reverse pulley
3. Rotational System of REW Mode
idler gear (A) (S side)
gear (reel) (S side)
gear (FR)
motor pulley
gear (Y)
insert flywheel (N)
clutch
assy (F)
insert flywheel (R)
reverse pulley
—4—
insert flywheel (R)
reverse pulley
SECTION 3
DISASSEMBLY
• The equipment can be removed using the following procedure.
Set
Note :
Lid Assy, Cassette
Case
Ornament (OPEN)
Block Assy
"Sub Board", "Switch, Leaf",
"Main Board"
Holder Assy
Pinch Lever (N)/(R) Assy
Follow the disassembly procedure in the numerical order given.
Belt (F1), Motor (M601)
Magnetic Head (HP701)
3-1. LID ASSY, CASSETTE
1 Two screws (M1.4 × 2.2)
Lid assy, cassette
4
2 Screw (M1.4 × 2.2)
3
3-2. CASE
Mechanism deck block
5
3 Two screws (M1.4 × 2.2)
4 Screw (M1.4 × 1.6)
2 Two screws (M1.4 × 2.2)
Case
1 Lid, battery case
—5—
3-3. ORNAMENT (OPEN) BLOCK ASSY
1 Release the two claws
from the two holes
in the direction allow
Hole
Hole
Ornament (open) block assy
Claw
Claw
2
Mechanism deck block
3-4. “SUB BOARD”, “SWITCH, LEAF”, “MAIN BOARD”
4 Unsolder the 6 places.
1 Screw
qs Claw
7 Screw (M1.4)
8 Switch leaf
9 Unsolder the
plunger.
5 Screw (M1.4)
6 SUB board
3 Screw (M1.4 × 1.4)
0 Unsolder the
flexible board.
qd MAIN board
qa Unsolder the motor.
2 Screw (M1.4)
—6—
3-5. BELT (F KAI), MOTOR (M601)
1 Belt (F KAI)
2 Two screws (M1.4)
4 Motor (M601)
3 Retainer (F1) motor
Belt (F KAI)
3-6. HOLDER ASSY
4 Screw (M1.4)
7 Bracket (casette) assy
5 Lock lever (S)
8 Remove soldering
from Head flexible board.
9 Head flexible
board
2 Shaft
0 Remove the holder
assy in the direction
of the arrow.
6 Shaft
3 Lock lever (B)
1 Two screws (M1.4 × 1.4)
—7—
3-7. PINCH LEVER (N)/(R) ASSY
Claw
2 Remove the pinch lever
(N) assy in the direction
of the arrow.
Note: Be careful of the claw
Claw
1 Remove the pinch lever
(R) assy in the direction
of the arrow.
Note: Be careful of the claw
3-8. MAGNETIC HEAD (HP701)
1 Remove the magnetic head (HP701)
in the direction of the arrow.
—8—
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENT
WM-EX20
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM
Torque Meter
FWD
FWD
back tension
CQ-102C
REV
REV
back tension
FF, REW
CQ-102RC
CQ-201B
L CH
FWD R
R CH
REV L
L CH
PRE NF L
L
5
REV R
4
PRE OUT R
PRE NF R
VREF
3
MTL DRV
Used for
tape speed adjustment
4
7
METAL
SWITCH
Q313(1/2)
6
8
SWITCH
46 44 43 42 41
BEEP
39 40
AMS
IN
15
1
5
AUDIO AMP
IC301 (2/2)
28
7
29
11
METAL
SWITCH
Q313(2/2)
11
SURROUND AMP
IC302
+
10
R
Meter Reading
15 – 25 g • cm
(0.21 – 0.35 oz • inch)
+
–
REV
REF V
Signal
3 kHz, 0 dB
PRE OUT L
R
2
BEEP
AMS OUT
Type
WS-48A
DOLBY AMP
IC303
+
–
FWD
Test tape
AUDIO AMP
IC301 (1/2)
L
1
DOLBY
SWITCH
Q312
16
10
VOL MAX
SWITCH
Q307
14 VCC
VOL MIN
SWITCH
Q308,310
27
10
SURROUND
SWITCH
Q304
VCC 9
SWITCH
Q309
DOLBY
SWITCH
Q311
B+
(+2.0V)
14
PW
Tape Speed Adjustment
Procedure :
S301
VOLUME
MIN
B+
(+2.0V)
Q314
INV.
SURROUND
SWITCH
Q306
REVIVE
CONTROL
Q303
test tape
WS-48A
(3 kHz, 0 dB)
15 – 25 g • cm
(0.21 – 0.35 oz • inch)
less than 2 g • cm
(less than 0.03 oz • inch)
16 DOLBY CTL
REMOTE
PW NF L
PW IN R
+
PW OUT R
–
GND
REMO
DATA
VCC
22
PW NF R
AGC
DET
33
55 BOOST CTL
Playback WS-48A (tape center part) in the REV state and adjust
RV601 so that the frequency counter reading becomes
3,000 Hz.
X701
4kHz
S704
-1
(TAPE IN)
5
XO
8
XI
PW OUT C
HI UP CTL 14
47 BEEP
30 F/R CTL
PW IN C
SURRUND CTL 24
40 AMS IN
32 Ω
i REMOTE jack (J301)
SYSTEM
CONTROL
IC702
REVIVE
CONTROL
Q302
RV CTL 15
-2
(ATS)
17
REMOTE
SWITCH
Q708
RMUM 37
22 PHOTO (T) CTL
MOTOR SERVO
IC601
INV.
Q705,706
S REEL
SENS
PH702
INV.
Q705,706
Playback WS-48A (tape counter part) in the FWD state.
Check that frequency counter reading is within 2.5% of reading
of step 1.
12 TU
8 TV
10 TW
RST
2
1
20 PHOTO (S) CTL
7
TU
TV
TW
43 PHOTO (T) IN
UT 13
VT 9
WT 11
28 UT
29 VT
30 WT
MOTOR
DRIVE
Q605
RV601
TAPE
SPEED
18
RIPPLE
FILTER
Q305
PLUNGER
DRIVER
Q701,704
PM CTL 19
B+ (+1.5V)
BASE
RF OUT
33 M/N CTL
T REEL
SENS
PH701
35
RIPPLE
FILTER
DATA OUT 41
31 MUTE CTL
AGC IN
21
34
48 CASSETE SW
Specification Value :
Digital frequency counter
2,985 to 3,015 Hz
2.
J301
20
MAX
set
1.
PW OUT L
–
NORM
frequency counter
more than 50 g • cm
(more than 0.69 oz • inch)
+
HI UP
CONTROL
Q301
32
less than 2 g • cm
(less than 0.03 oz • inch)
PW IN L
B+
(+2.0V)
26
12
AMS
DET
FWD L
R CH
Torque Measurement
Mode
HP701
(PLAYBACK)
M/N SW
F/R SW
BST SW
PW SW
MT SW
5.
• Supplied voltage : 1.3 V
• Switch and control position
VOL switch : NORM
• Remote control position
HOLD switch : OFF
VOL control : MAX
SOUND mode : NORM
DOLBY mode : OFF
–
2.
3.
4.
PRECAUTION
Clean the following parts with a denatured-alcohol-moistened
swab :
playback head
pinch roller
capstan
rubber belt
Demagnetize the playback head with a head demagnetizer.
Do not use a magnetized screwdriver for the adjustments.
After the adjustments, apply suitable locking compound to the
parts adjusted.
The adjustments should be performed with the rated power
supply voltage (1.3 V) unless otherwise noted.
+
PRECAUTION
1.
RESET
3
IC705
B+ (+1.5V)
S701
(A/B)
A/B SW 46
W702
S702
FWD
42 PHOTO (S) IN
MD SW 60
PM701
PLUNGER
CNT
1/2 SPEED
SWITCH
Q602
ICI1 21
REV
B+
(+1.5V)
35 SPEED DTL
S703
OPERATION
W701
KEY IN 63
Adjustment Location :
CAPSTAN
/REEL
MOTOR
M601
WS
1
W
WS 2
1
3
V
VS 4
36 VS
5
U
US 6
35 US
RV601
W
V
U
31 W OUT
32 V OUT
34 U OUT
VI1 16
VI2 17
IV 15
MOTOR
START SWITCH
Q603
U IN 4
V IN 5
W IN 6
CTRL 1 7
CTRL 2 8
DIR 9
PSIG 10
26
27
29
54
53
36
C
BATT DET 2 62
PSIG
CONTROL
Q604
50 P SIG IN 1
51 P SIG IN 2
23 POWER CTL
1 OUT1
CE 7
F701
0.25A
VCC POWER
SWITCH
IC707
B+
(+2.0V)
B+
(+1.5V)
BATTERY CASE
DC IN 1.5V
2 OUT2
DC/DC CONVERTER
IC701
3 OUT3
BATT DET 1 61
MOTOR
SW
Q601
B+
(+1.5V)
16
MOTOR U
MOTOR V
MOTOR W
CTRL 1
CTRL 2
MOTOR DIR
SUB BOARD
WAKE UP 58
VOLTAGE DETECT
IC703
19 MCENTER
2 MC
• Signal path
: PB
34 MOTOR START
4 OUT4
VCC 8
B+
(+1.5V)
V OUT 2
VOLTAGE DETECT
IC704
1 OUT
IN 3
B+
(+1.5V)
BATTERY CASE
D702
LX 3
L702
B+
(+1.5V)
PW
+
RECHAGEABLE
BATTERY
NH-14WM(1.2V 1400mA)
:E,JE,KR MODEL
NC-6WM(1.2V 600mA)
:US,CND,AUS,AEP,UK,
FR MODEL
+
DRY BATTERY
SIDE "AA"
(IEC DESIGNATION R6)
1PC, 1.5V
AEP,UK,FR MODEL
+
DRY BATTERY
SIDE "AA"
(IEC DESIGNATION R6)
1PC, 1.5V
US,CND,AUS,E,JE,KR MODEL
• Abbreviation
CND : Canadian model
AUS : Austratian model
FR : French model
KR : Korean model
JE : Tourist model
—9—
— 10 —
— 11 —
WM-EX20
6-2. PRINTED WIRING BOARD
1
3
2
4
5
6
7
8
9
10
11
12
13
14
15
AEP,UK,FR MODEL
MAIN
BOARD
A
J301
REMOTE
(SIDE B)
S704-1
TAPE IN
SWITCH
S704-2
ATS
SWITCH
SUB BOARD
SUB BOARD
(SIDE A)
(SIDE B)
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
+
1PCS, 1.5V
DC IN 1.5V
BATTERY
CASE
B
RECHAGEABLE BATTERY
PM701
(PLUNGER)
MAIN BOARD (SIDE A)
1-674-823-
11
(11)
1-674-823-
11
(11)
NH-14WM (1.2V 1400mA)
:E,JE,KR MOSEL
NH-6WM (1.2V 600mA)
:US,CND,AEP,UK,FR,AUS
MODEL
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
+
1PCS, 1.5V
+
C
-1
EXCEPT
FR MODEL
456
321
TAPE SPEED
-2
FR MODEL
IC301
IC302
IC303
IC601
IC701
IC702
IC703
IC704
IC705
E-6
C-7
D-5
D-2
B-5
D-11
B-5
B-6
B-5
Q301
Q302
Q303
Q304
Q305
Q306
Q307
Q308
Q309
Q310
Q311
Q312
Q313
Q314
Q601
Q602
Q603
Q604
Q605
Q701
Q704
Q705
Q706
Q707
Q708
D-6
D-6
D-7
C-6
E-7
D-6
C-5
C-5
C-6
C-6
C-5
C-4
F-6
E-9
C-1
C-13
C-3
C-12
D-2
B-6
B-6
C-4
C-4
E-4
C-4
-2
456
-1
V
D
-2
C
TW
S301
VOLUME
MIN
Q605
TV
M601
CAPSTAN/REEL
MOTOR
NORM
MAX
REV
CNT
FWD
E
4 5 6
3 2 1
S701
(A/B)
HP701 (PLAYBACK )
1-674-822-
16
F
1-674-822-
11
(11)
11
(11)
L CH
FWD
R CH
R CH
REV
L CH
G
U W
TU
-1
456
B-5
B-5
B-6
321
456
321
D701
D702
D703
Location
PH701
(T REEL)
456
456
321
PH702
(S REEL)
321
• Semiconductor
Ref. No.
US,CND,E,JE,KR,AUS
MODEL
321
-2
-1
Location
BATTERY
CASE
Note on Printed Wiring Board:
• Y : parts extracted from the conductor side.
•
z
: Through hole.
• b : Pattern from the side which enables seeing.
Caution:
Pattern face side:
(Side A)
Parts face side:
(Side B)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
— 12 —
FLEXIBLE BOARD
• Abbreviation
CND : Canadian model
AUS : Austrarian model
FR :
French model
KR :
Korean model
JE :
Tourist model
— 13 —
— 14 —
WM-EX20
6-3. SCHEMATIC DIAGRAM
MAIN (1/2) SECTION
• Refer to page 21, 22 for IC Block Diagrams.
• Waveform
4 Q605 135
1 IC601 456
150 Hz
0.1
0.5V/div
2µsec/div
2 IC601 0
444 Hz
150 Hz
0.5V/div
5µsec/div
5 Q605 80!™
0.5V/div
1µsec/div
150 Hz
0.5V/div
5µsec/div
3 IC601 @•@ª#º
150 Hz
0.2V/div
5µsec/div
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 1/4 W or less unless otherwise
specified.
f
•
: internal component.
• C : panel designation.
• U : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 1.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : PLAY
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tolerances.
• Circled numbers refer to waveforms.
• Signal path.
E : PB
• Abbreviation
CND : Canadian model.
AUS : Australian model.
JE
: Tourist model.
FR
: French model.
KR
: Korea model.
— 15 —
— 16 —
— 17 —
WM-EX20
6-4. SCHEMATIC DIAGRAM
MAIN (2/2) SECTION
• Refer to page 21, 22 for IC Block Diagrams.
• Refer to page 23, 24 for IC Pin Function Description.
• Waveform
6 IC701 3
100 kHz
1V/div
5µsec/div
S702
7 IC702 8
4 MHz
1V/div
0.2µsec/div
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 1/4 W or less unless otherwise
specified.
f
•
: internal component.
• C : panel designation.
• U : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 1.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark: PLAY
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tolerances.
• Circled numbers refer to waveforms.
• Abbreviation
CND : Canadian model.
AUS : Australian model.
JE
: Tourist model.
FR
: French model.
KR
: Korea model.
0
1.3
0.6
0.7
1.3
— 18 —
— 19 —
— 20 —
PW IN L
PW IN R
PW NF R
EQ R
30
29
28 27 26
25
23
22
21
20
19 M CENTER
18 GND
17 VI2
+
MT TC 38
–
PWB
BEEP
+
AMS OUT 40
UT 28
23 PW GND
VT 29
22 PW OUT R
WT 30
VI
BUFFER
+
COMPARATOR
D/DT
+
19 VCC
TOMP
–
–
3
4
5
6
7
8
9
10
11
12
FWD IN-R
REF OUT
REV IN-R
REV IN-L
PRE NF-L
PRE OUT-L
MTL DRV-L
MTL DRV-R
PRE OUT-R
PRE NF-R
AMS IN
IC303 NJM2185AV
Vcc
SW
VEXT
IN A
OUT A
DC A
DET A
14
13
12
11
10
9
8
G1
V/I
VLx LIMITER
BUFFER
–
SUN
PWM/PFM CONTROL
OSC 50/100/180 kHz
WEIGHT
SLOW START
1
2
3
4 5 6
7
8
9
WS
MC
IC703 MM1305BWBE
V REF
PHASE COMP
2 V OUT
OUT 1 1
GM
8 VCC
–
Vss 1
+
ACH BLOCK
+
OUT 2 2
3
4
5
6
7
VREF
INB
OUT B
DC B
DET B
–
2
IREF
7 CE
+
1
–
BCH BLOCK (SAME ACH)
GND
OUT 3 3
6 RIPPLE
+
IC302 NJM2190V
VREF
REFin
V+/2
C4
C3
Rout
V+
15
14
13
12
11
10
9
OUT 4 4
+
Rin
–
16
5 GND
–
BYPASS
MATRIX
SRS
–
EXT
FILTER
+
BIAS
SRS
BYPASS
1
2
3
4
5
6
7
8
Lin
Wout
Win
MODE
C1
C2
Lout
GND
MODE
CONTROL
PW•SW
DECODER
Lx 3
— 21 —
11 Vref
10 P SIG
CTRL
BLOCK
IC701 XC6372A211PR
BIAS
CIRCUIT
13 PW
SOFT CLIP
DIR
2
G2
PULSE
CURRENT
AMP
CTRL2
1
FWD IN-L
MTL DRV
31
32
33
34
35
36
CTRL1
+
W OUT
V OUT
NC
U OUT
US
VS
U IN
V IN
W IN
+
MIX
POWER
RF OUT
GND
AMS DET
AMS MIX
AMS IN
VCC
–
+
PREB
+
14 VC
18 BASE
17
16
15
14
13
PREA
VREF
BUFFER
12 CI
–
RIPPLE
FILTER
VREF IN 48
16 VI1
20 PW OUT L
PWA
M/N SW 46
PRE GND 47
COMPARATOR
15 IV
P-SIG
–
SW
24 RF IN
21 PW OUT C
PWC
41
42
43
44
45
25 24
BST
CAMP SW 37
NT SW
PW SW
BST SW
F/R SW
PRE SW
27 26
–
AGC
DET
BEEP 39
I SOFT
PW NF L
32 31
ICI1
EQ L
33
ICI2
PW IN C
LPF
34
IR
BST OUT
36 35
CT2
CT1
BST NF
IC601 LB1994M
AGC DET
AGC IN
IC301 TA2123AF
PGND
FC
6-5. IC BLOCK DIAGRAMS
— 22 —
6-6. IC PIN FUNCTION DESCRIPTION
• IC702 MB89135LPFV (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
1
AVCC
–
2
RST
I
3
MODE0
4
MODE1
5
X0
6, 7
8
9
10
Description
Pin No.
Pin Name
I/O
Description
Power supply terminal. (A/D)
51
P-SIG IN2
I
Motor P-SIG signal input.
Reset signal input.
52
P-SIG IN1
I
Motor P-SIG signal input.
I
Test input terminal. (Connect to Vss terminal.)
53
CTL2
O
Mode select signal output to Motor servo IC (IC601).
I
Test input terminal. (Connect to Vss terminal.)
54
CTL1
O
Mode select signal output to Motor servo IC (IC601).
I
Crystal oscillator connection terminal. (4 MHz)
55
BOOST CTL
O
Tone select switch signal output. L : OFF, Open : BOOSTON
NC
–
Not used. (Open)
56
NC
–
Not used. (Open)
X1
O
Crystal oscillator connection terminal. (4 MHz)
57
AVss
–
Ground. (A/D)
VCC
–
Power supply pin.
58
NC
–
Non connection
X0A
O
Not used. (Open)
59
AVR
I
Reference voltage input. (A/D)
11, 12
NC
–
Not used. (Open)
60
MD SW
I(A/D)
MD mode switch signal input. (FWD/CENTER/RVS mode)
13
X1A
O
Not used. (Open)
61
BATT DET1
I(A/D)
Power voltage detection signal input.
14
HI UP CTL
O
Tone select switch signal output. H: HI UP ON
62
BATT DET2
I(A/D)
Power voltage detection signal input.
15
RV CTL
O
Tone select switch signal output. H: REVIVE ON
63
KEY IN
I(A/D)
Operation switch signal input.
16
DOLBY CTL
O
Dolby circuit control signal output. L: ON
64
NC
–
17
NC
–
Not used. (Open)
18
AMS OUT
O
Music with/without detection (AMS) signal output. (H : with, L :without)
19
PM CLT
O
Plunger control signal output. H : ON
20
PHOTO(S)CTL
O
Rotational detection intermittent signal output. H : ON
21
NC
–
Not used. (Open)
22
PHOTO(T)CTL
O
Rotational detection intermittent signal output. H : ON
23
POWER CTL
O
Audio circuit and DDC control signal output. L : STOP, H : NORMAL
24
SURROUND CTL
O
Surround circuit control signal output. L : ON
25
VSS
–
Ground
26
MOTOR U
O
Motor control signal output.
27
MOTOR V
O
Motor control signal output.
28
NC
–
Not used. (Open)
29
MOTOR W
O
Motor control signal output.
30
F/R CTL
O
Head select signal output. L : FWD, H : RVS
31
MUTE CTL
O
Audio muting control signal output. L : MUTE ON
32
NC
–
Not used. (Open)
33
M/N CTL
O
Metal/normal tape select signal output.
34
MOTOR START
O
Motor wake-up signal output. L : wake-up, open : normally
35
SPEED CTL
O
Motor speed 1/2 control signal output. L :1/2 speed, H :normally
36
MOTOR DIR
O
Motor rotational derection control signal output. L :CW, Open :CCW
37
RMUM
I
Remote control with/without detection signal input.
38, 39
NC
–
Not used. (Open)
40
AMS IN
I
Music with/without detection (AMS) signal input. H : without
41
DATA OUT
O
Communication data signal output.
42
PHOTO(S)IN
I
Rotational detectionsignal input.
43
PHOTO(T)IN
I
Rotational detectionsignal input.
44, 45
NC
–
Not used. (Open)
46
A/B SW
I
Side A/B detection switch dignal input. L :side A, H : side B
47
BEEP
O
Beep signal output.
48
CASSETTE SW
I
Cassette with/without detection switch signal input. L :with, H :without
49
NC
–
Not used. (Open)
50
WAKE UP
I
Clock make up signal input.
— 23 —
Not used. (Open)
— 24 —
SECTION 7
EXPLODED VIEWS
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
delay should be anticipated when ordering these
items.
•
•
•
The mechanical parts with no reference number
in the exploded views are not supplied.
Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
Color Indication of Appearance Parts Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts of Color Cabinet’s Color
•
Abbreviation
CND : Canadian model
AUS : Australian model
FR : French model
KR : Korea model
JE : Tourist model
7-1. CASE SECTION
19
18
13
S704
17
MT-WMEX20-162
19
A
11
26
A
25
14
15
11
B
27
20
7
21
7
16
12
9
8
24
29
6
5
10
3
19
B
4
22
28
3
Ref. No.
2
1
19
Remarks
Ref. No.
23
Part No.
Description
Part No.
Description
1
2
3
4
5
3-038-057-01
3-345-648-71
3-375-114-41
3-038-056-01
A-3061-994-A
TERMINAL BOARD, BATTERY
SCREW(M1.4), TOOTHED LOCK
SCREW
TERMINAL BOARD (MINUS) (/M)
MAIN BOARD, COMPLETE (EXCEPT FR)
17
18
19
20
20
X-3377-780-1
X-3377-779-1
3-704-197-41
3-038-630-01
3-038-630-11
BRACKET (CASSETTE) ASSY
LID ASSY, CASSETTE
SCREW (M1.4 × 2.2)
COVER, MD (JE)
COVER, MD (AEP,UK,FR)
5
6
7
8
9
A-3061-997-A
3-038-624-01
3-366-892-11
X-3377-726-1
A-3052-056-A
MAIN BOARD, COMPLETE (FR)
LID,BATTERY CASE
SCREW(M1.4 × 1.4)
TERMINAL BOARD ASSY (/M)
ORNAMENT (OPEN) BLOCK ASSY
20
21
22
23
24
3-038-630-21
3-038-616-01
3-038-615-01
3-704-197-01
3-038-617-01
COVER, MD (US,CND,E,KR,AUS)
ORNAMENT (CASE)
CASE(1680)
SCREW (M1.4 × 1.6), LOCKING
KNOB(VOL)
10
11
12
13
14
3-038-627-01
4-963-883-51
3-029-220-01
3-365-630-41
X-3377-717-1
SHEET (CASE), ADHESIVE
SCREW (M1.4), PRECISION PAN
SPRING, TENSION
SCREW (M1.4)
BRACKET ASSY (/M)
25
26
* 27
28
29
3-038-625-01
3-038-628-01
1-674-823-11
3-324-509-01
3-031-460-01
WINDOW (CASSETTE), ORNAMENT
SHEET (CASSETTE WINDOW)
SUB BOARD
CUSHION
SHEET(BT)
15
16
3-038-054-01 LEVER (B) (/M), LOCK
3-366-892-01 SCREW (M1.4)
S704
— 25 —
1-762-553-11 SWITCH, LEAF (TAPE IN/ATS)
Remarks
7-2. MECHANISM DECK BLOCK
65
PM701
64
66
62
60
67
61
63
57
68
59
69
70
58
84
M601
73
74
71
80
56
72
75
85
53
HP701
82
55
54
81
83
52
51
76
78
79
77
Ref. No.
Part No.
Description
51
52
53
54
55
X-3377-589-1
X-3377-995-1
X-3377-994-1
3-029-275-01
3-029-278-01
HOLDER (FA) ASSY
LEVER (R2) ASSY, PINCH
LEVER (N2) ASSY, PINCH
WASHER (STOPPER N)
WASHER
56
57
58
59
60
X-3377-037-1
3-386-694-01
3-029-287-11
3-029-281-01
3-029-306-11
61
62
63
64
65
66
67
68
69
70
Remarks
Ref. No.
Part No.
Description
71
72
73
74
75
3-029-268-11
3-029-883-01
3-029-273-01
3-010-273-02
3-029-288-01
FLYWHEEL (R), INSERT
RETAINER (F1), MOTOR
GEAR(FR)
GEAR(REEL)
PULLEY, REVERSE
CHASSIS ASSY (FA)
WASHER
SPRING (TG), TORSION
GEAR, IDLER (B)
FLYWHEEL (N), INSERT
76
77
78
79
80
3-010-954-01
3-010-274-02
3-029-289-01
3-029-276-01
3-007-428-01
SPRING (BT), COMPRESSION
TABLE, REEL
WASHER
WASHER (STOPPER R)
WASHER (R)
3-029-285-01
3-029-282-01
3-029-284-01
X-3376-813-1
3-932-724-21
GEAR, CAM
GEAR(Y)
LEVER, TRIGGER
CLUCH ASSY (F)
WASHER
81
82
83
84
85
3-029-271-11
3-038-611-01
3-038-610-01
3-038-613-01
3-033-757-01
SPRING (HD)
SPRING (HD2)
LEVER, HEAD
SEAL(MOTOR)
SHEET(H)
3-029-286-01
3-038-612-01
3-007-433-01
3-029-283-01
3-029-765-01
GEAR(NR)
BELT(F KAI)
SHEET (N), REFLECTION
GEAR, IDLER (A)
SCREW (M1.4), TOOTHED LOCK
M601
1-763-165-21 MOTOR (CAPSTAN/REEL MOTOR)
(WITH PULLY)
1-500-623-31 HEAD, MAGNETIC (PLAYBACK)
1-454-674-31 SOLENOID, PLUNGER
HP701
PM701
— 26 —
Remarks
SECTION 8
ELECTRICAL PARTS LIST
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, -X mean standardized parts, so they
may have some difference from the original
one.
• Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
• CAPACITORS:
uF: µF
Ref. No.
Part No.
•
•
•
RESISTORS
All resistors are in ohms.
METAL: metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F: nonflammable
COILS
uH: µH
Abbreviation
CND : Canadian model
AUS : Australian model
FR : French model
KR : Korea model
JE : Tourist model
Description
Remarks
A-3061-994-A MAIN BOARD, COMPLETE (EXCEPT FR)
*********************
A-3061-997-A MAIN BOARD, COMPLETE (FR)
*********************
Ref. No.
MAIN
•
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 name.
The components identified by mark ! or
dotted line with mark ! are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
! sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
Part No.
Description
Remarks
C323
C324
C325
C326
C327
1-135-201-11
1-135-201-11
1-162-967-11
1-162-968-11
1-107-826-91
TANTALUM CHIP
TANTALUM CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
10uF
10uF
0.0033uF
0.0047uF
0.1uF
C328
C329
C601
C602
C603
1-115-156-11
1-115-156-11
1-125-837-91
1-115-156-11
1-115-156-11
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
1uF
1uF
1uF
1uF
1uF
C604
C605
C606
C607
C608
1-115-156-11
1-117-863-11
1-165-176-11
1-165-176-11
1-119-663-11
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
TANTAL. CHIP
1uF
0.47uF
0.047uF
0.047uF
47uF
C609
C610
C611
C612
C701
1-164-227-11
1-127-671-91
1-162-964-11
1-135-149-21
1-164-505-11
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
TANTALUM CHIP
CERAMIC CHIP
0.022uF
10000PF
0.001uF
2.2uF
2.2uF
10%
5%
10%
20%
25V
50V
50V
10V
16V
C702
C703
C704
C705
C706
1-135-259-11
1-115-156-11
1-164-505-11
1-115-156-11
1-164-360-11
TANTAL. CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
10uF
1uF
2.2uF
1uF
0.1uF
20%
6.3V
10V
16V
10V
16V
0
0
25V
50V
20%
20%
10%
10%
10%
4V
4V
50V
50V
16V
10%
10V
10V
6.3V
10V
10V
3-032-323-01 PAPER (A), SHIELD
< CAPACITOR >
C103
C104
C106
C107
C108
1-107-520-11
1-164-227-11
1-115-156-11
1-115-156-11
1-115-156-11
TANTAL. CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
33uF
0.022uF
1uF
1uF
1uF
20%
10%
C109
C110
C111
C112
C113
1-115-156-11
1-117-863-11
1-115-467-11
1-113-619-11
1-115-156-11
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
1uF
0.47uF
0.22uF
0.47uF
1uF
C203
C204
C206
C207
C208
1-107-520-11
1-164-227-11
1-115-156-11
1-115-156-11
1-115-156-11
TANTAL. CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
33uF
0.022uF
1uF
1uF
1uF
C209
C210
C211
C212
C213
1-115-156-11
1-117-863-11
1-115-467-11
1-113-619-11
1-115-156-11
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
1uF
0.47uF
0.22uF
0.47uF
1uF
C301
C302
C303
C304
C305
1-135-151-21
1-113-600-11
1-135-316-11
1-115-156-11
1-164-360-11
TANTALUM CHIP
TANTAL. CHIP
TANTAL. CHIP
CERAMIC CHIP
CERAMIC CHIP
4.7uF
2.2uF
22uF
1uF
0.1uF
20%
20%
20%
C307
C308
C309
C310
C311
1-135-149-21
1-164-505-11
1-125-837-91
1-165-112-11
1-165-128-11
TANTALUM CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
2.2uF
2.2uF
1uF
0.33uF
0.22uF
20%
C312
C313
C314
C315
C316
1-162-964-11
1-164-360-11
1-162-927-11
1-135-151-21
1-135-151-21
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
TANTALUM CHIP
TANTALUM CHIP
0.001uF
0.1uF
100PF
4.7uF
4.7uF
10%
5%
20%
20%
50V
16V
50V
4V
4V
C317
C318
C319
C320
C321
1-125-976-91
1-164-227-11
1-104-847-11
1-162-964-11
1-135-201-11
TANTAL. CHIP
CERAMIC CHIP
TANTAL. CHIP
CERAMIC CHIP
TANTALUM CHIP
150PF
0.022uF
22uF
0.001uF
10uF
20%
10%
20%
10%
20%
2.5V
25V
4V
50V
4V
10%
10%
20%
10%
10%
10%
10%
2.5V
25V
10V
10V
10V
10V
6.3V
10V
10V
10V
2.5V
25V
10V
10V
10V
10V
6.3V
10V
10V
10V
4V
6.3V
2.5V
10V
16V
10V
16V
6.3V
16V
16V
10%
10%
10%
20%
10V
6.3V
16V
16V
2.5V
< CAPACITOR BLOCK >
CB301
CB302
1-131-597-21 CERAMIC CHIP 15000PF
1-127-575-21 CERAMIC CHIP 470PF
< DIODE >
D101
D201
D301
D701
D702
8-719-422-37
8-719-422-37
8-719-422-37
8-719-073-01
8-719-049-09
DIODE
DIODE
DIODE
DIODE
DIODE
MA8051
MA8051
MA8051
MA111-(K8).S0
1SS367-T3SONY
D703
8-719-422-37 DIODE MA8051
< FUSE >
F701
1-533-792-11 FUSE (SMD)
0.25A/125V
< FERRITE BEAD >
FB701
— 27 —
1-414-760-21 INDUCTOR CHIP 0uH
MAIN
Ref. No.
Part No.
Description
Remarks
< IC >
IC301
IC302
IC303
IC601
IC701
8-759-579-12
8-759-597-24
8-759-488-80
8-759-553-51
8-759-597-25
IC
IC
IC
IC
IC
TA2123AF(EL)
NJM2190V(TE2)
NJM2185AV-TE2
LB1994M-TLM
XC6372A211PR
IC702
IC703
IC704
IC705
8-759-597-27
8-759-438-27
8-759-445-09
8-759-592-24
IC
IC
IC
IC
MB89135LPFV-534-STR
MM1305BWBE
XC61AS0VXXMR
XC61AN1502MR
< JACK >
J301
1-779-867-81 JACK (2/REMOTE)
< JUMPER CHIP >
JC101
1-216-864-11 METAL CHIP
0
JC201
1-216-864-11 METAL CHIP
0
5%
1/16W
(EXCEPT FR)
5%
1/16W
(EXCEPT FR)
Ref. No.
Part No.
Description
R107
R108
R110
R111
R112
1-216-837-11
1-216-789-11
1-216-827-11
1-216-839-11
1-216-823-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
22K
2.2
3.3K
33K
1.5K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
Remarks
R113
R114
R115
R116
R150
1-216-857-11
1-216-841-11
1-216-831-11
1-216-835-11
1-216-811-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
1M
47K
6.8K
15K
150
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
(FR)
R201
R202
R203
R204
R205
1-216-845-11
1-216-831-11
1-216-831-11
1-216-835-11
1-216-811-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
100K
6.8K
6.8K
15K
150
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R207
R208
R210
R211
R212
1-216-837-11
1-216-789-11
1-216-827-11
1-216-839-11
1-216-823-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
22K
2.2
3.3K
33K
1.5K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R213
R214
R215
R216
R250
1-216-857-11
1-216-841-11
1-216-831-11
1-216-835-11
1-216-811-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
1M
47K
6.8K
15K
150
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
(FR)
R301
R302
R303
R304
R305
1-216-841-11
1-216-837-11
1-216-853-11
1-216-849-11
1-216-823-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
47K
22K
470K
220K
1.5K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R306
R307
R308
R309
R310
1-216-851-11
1-216-793-11
1-216-833-91
1-216-823-11
1-216-837-11
METAL CHIP
RES,CHIP
RES,CHIP
METAL CHIP
METAL CHIP
330K
4.7
10K
1.5K
22K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R311
R312
R314
R315
R316
1-218-899-11
1-218-887-11
1-216-837-11
1-216-853-11
1-216-853-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
150K
47K
22K
470K
470K
0.50%
0.50%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R317
R318
R319
R321
R322
1-216-837-11
1-216-837-11
1-216-837-11
1-216-853-11
1-216-805-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
22K
22K
22K
470K
47
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R323
R601
R602
R603
R604
1-216-805-11
1-216-841-11
1-216-841-11
1-216-837-11
1-216-833-91
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
RES,CHIP
47
47K
47K
22K
10K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R605
R606
R607
R608
R609
1-216-845-11
1-216-833-91
1-216-853-11
1-216-833-91
1-216-849-11
METAL CHIP
RES,CHIP
METAL CHIP
RES,CHIP
METAL CHIP
100K
10K
470K
10K
220K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R610
R611
R612
R613
R614
1-216-847-11
1-216-829-11
1-216-845-11
1-216-829-11
1-216-829-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
150K
4.7K
100K
4.7K
4.7K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
< COIL >
L701
1-412-034-11 INDUCTOR CHIP 330uH
< PHOTO INTERRUPTER >
PH701
PH702
8-749-016-56 REFLECTOR NJL5197K-F20(TE1)
8-749-016-56 REFLECTOR NJL5197K-F20(TE1)
< TRANSISTOR >
Q301
Q302
Q303
Q304
Q305
8-729-426-36
8-729-037-76
8-729-426-36
8-729-046-89
8-729-800-71
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
XP1215-TXE
UN9215J-(TX).SO
XP1215-TXE
2SB970-S(TX).S0
2SB815B7-TB
Q306
Q307
Q308
Q309
Q310
8-729-038-05
8-729-038-05
8-729-230-63
8-729-426-36
8-729-230-63
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
HN1K02FU(T5RSONY)
HN1K02FU(T5RSONY)
2SC4116-YG
XP1215-TXE
2SC4116-YG
Q311
Q312
Q313
Q314
Q601
8-729-038-05
8-729-046-89
8-729-038-05
8-729-037-63
8-729-043-94
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
HN1K02FU(T5RSONY)
2SB970-S(TX).S0
HN1K02FU(T5RSONY)
UN9115J-(TX).SO
CPH3106-PM-TL
Q602
Q603
Q604
Q605
Q701
8-729-037-76
8-729-420-24
8-729-037-71
8-729-039-36
8-729-046-89
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
UN9215J-(TX).SO
2SB1218A-QRS
UN9210J-(TX).SO
MDC06TR
2SB970-S(TX).S0
Q704
Q705
Q706
Q707
Q708
8-729-020-99
8-729-427-51
8-729-426-36
8-729-402-16
8-729-425-46
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
UN5215-RS-TX
XP4215-TXE
XP1215-TXE
XN4608
XP4315-TXE
< RESISTOR >
R101
R102
R103
R104
R105
1-216-845-11
1-216-831-11
1-216-831-11
1-216-835-11
1-216-811-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
100K
6.8K
6.8K
15K
150
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
— 28 —
MAIN
Ref. No.
Part No.
Description
Remarks
Ref. No.
R615
R616
R617
R618
R619
1-216-831-11
1-216-845-11
1-216-851-11
1-216-857-11
1-216-857-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
6.8K
100K
330K
1M
1M
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R620
R702
R703
R704
R705
1-216-845-11
1-216-855-11
1-216-821-11
1-216-853-11
1-216-853-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
100K
680K
1K
470K
470K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
MISCELLANEOUS
*************
S704
1-762-553-11 SWITCH, LEAF (TAPE IN/ATS)
M601
1-763-165-21 MOTOR (CAPSTAN/REEL MOTOR)
(WITH PULLY)
HP701 1-500-623-11 HEAD, MAGNETIC (PLAYBACK)
PM701 1-454-674-32 SOLENOID, PLUNGER
************************************************************
R706
R707
R708
R709
R710
1-216-855-11
1-216-821-11
1-216-845-11
1-216-849-11
1-216-849-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
680K
1K
100K
220K
220K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
!
R712
R713
R714
R715
R716
1-216-853-11
1-216-853-11
1-216-841-11
1-216-849-11
1-216-853-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
470K
470K
47K
220K
470K
5%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R717
R718
R719
R720
R721
1-218-879-11
1-216-845-11
1-216-849-11
1-216-833-91
1-216-845-11
METAL CHIP
METAL CHIP
METAL CHIP
RES,CHIP
METAL CHIP
22K
100K
220K
10K
100K
0.50%
5%
5%
5%
5%
1/16W
1/16W
1/16W
1/16W
1/16W
R722
R723
R724
R725
R726
1-216-849-11
1-216-853-11
1-216-841-11
1-218-839-11
1-218-851-11
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
METAL CHIP
220K
470K
47K
470
1.5K
5%
5%
5%
0.50%
0.50%
1/16W
1/16W
1/16W
1/16W
1/16W
R727
R728
R729
1-216-821-11 METAL CHIP
1-216-849-11 METAL CHIP
1-216-853-11 METAL CHIP
1K
220K
470K
5%
5%
5%
1/16W
1/16W
1/16W
1-234-214-21 RES, NETWORK 1.5K
!
!
!
!
!
1-528-543-22
1-528-580-21
1-528-676-22
1-528-713-21
1-528-744-23
BATTERY, NI-CD (NC-6WM) (AUS)
BATTERY CHARGER (BC-7HT) (E,JE)
BATTERY CHARGER (BC-9HR) (KR)
BATTERY CHARGER (BC-7DC) (US,CND)
BATTERY CHARGER (BC-7DY) (AEP,FR)
!
(3216)
3-029-488-01 POUCH, CARRYING
3-867-217-01 MANUAL, INSTRUCTION
(JAPNESE/ENGLISH/KOREAN) (JE)
3-867-217-11 MANUAL, INSTRUCTION (ENGLISH/FRENCH)
(US,CND,AEP,UK,FR,AUS,CND,CND)
3-867-217-21 MANUAL, INSTRUCTION (GERMAN/DUTCH)
(AEP)
3-867-217-31 MANUAL, INSTRUCTION (SWEDISH/ITALIAN)
(AEP)
1-223-325-21 RES, ADJ, METAL GLAZE 100K
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
1-692-605-11 SWITCH, SLIDE (VOLUME)
1-762-516-11 SWITCH, PUSH (1 KEY)(A/B)
1-771-475-21 SWITCH, SLIDE (F/R)
< VIBRATOR >
X701
1-767-289-11 VIBRATOR, CERAMIC (4MHz)
************************************************************
*
1-528-842-11 BATTERY, NICKEL HYDROGEN (NH-14WM)
(E,KR,JE)
1-569-007-11 ADAPTOR, CONVERSION 2P (E,JE)
1-759-213-11 CASE, BATTERY (US,CND,E,KR,AUS,JE)
1-759-700-21 CASE, BATTERY (DC IN 1.5V) (AEP,UK,FR)
3-008-521-01 CASE, BATTERY RECHARGEABLE
3-867-217-41 MANUAL, INSTRUCTION
(SPANISH/PORTUGUESE)(AEP,E)
3-867-217-51 MANUAL, INSTRUCTION (FINNISH) (AEP)
3-867-217-61 MANUAL, INSTRUCTION
(ENGLISH/CHINESE/KOREAN) (E,KR)
8-953-739-90 HEADPHONE MDR-E832SP
< SWITCH >
S301
S701
S702
Remarks
1-418-544-11
1-528-252-21
1-528-299-41
1-528-299-51
1-528-434-13
< VARIABLE RESISTOR >
RV601
Description
ACCESSORIES & PACKING MATERIALS
*******************************
REMOTE CONTROL UNIT(RM-WME22S)
BATTERY CHARGER (BC-7S) (UK)
BATTERY, NI-CD (NC-6WM) (AEP,UK,FR)
BATTERY, NI-CD (NC-6WM) (US,CND)
BATTERY CHARGER (BC-7SG) (AUS)
< COMPOSITION CIRCUIT BLOCK >
RB301
Part No.
SUB
1-674-823-11 SUB BOARD
*********
< SWITCH >
S703
1-771-053-21 SWITCH, KEY BOARD (OPERATION)
************************************************************
— 29 —
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
WM-EX20
Sony Corporation
9-927-157-11
Personal Audio Company
— 30 —
99H1689-1
Printed in Japan ©1999.8
Published by General Engineering Dept.