Sony Walkman WM-SR1 User manual

SERVICE MANUAL
Ver. 1.1 2005.07
RADIO CASSETTE-CORDER
US Model
Canadian Model
E Model
Chinese Model
Model Name Using Similar Mechanism WM-FX171
Tape Transport Mechanism Type MF-WMSR1-114
SPECIFICATIONS
WM-SR1
9-926-921-12
2005G05-1
© 2005.07
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation

– 2 –
TABLE OF CONTENTS
1. SERVICING NOTES............................................... 2
2. GENERAL ................................................................... 4
3. DISASSEMBLY ......................................................... 5
4. MECHANICAL ADJUSTMENTS....................... 9
5. ELECTRICAL ADJUSTMENTS
Tape Deck Section .......................................................... 9
Tuner Section .................................................................. 10
6. DIAGRAMS
6-1. Block Diagram – TUNER Section – ............................. 11
6-2. Block Diagram – MAIN Section – ................................ 13
6-3. Printed Wiring Board ...................................................... 18
6-4. Schematic Diagram ......................................................... 21
7. EXPLODED VIEWS................................................ 27
8. ELECTRICAL PARTS LIST ............................... 29
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
SERVICING NOTES
In this set, the S301 (TAPE POWER switch) detects REC/PLAY-
BACK on.
It is mounted on the MAIN board, and therefore the REC/PLAY-
BACK on cannot be detected with the MAIN board removed.
When making an operation check and voltage check of mechani-
cal deck with the MAIN board removed, fix the S301 at turn on.
S301
– MAIN BOARD (Component Side) –
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.

– 3 –
MODEL IDENTIFICATION
FM MODE
or
FM SENS
S2
MADE IN MALAYSIA
or no indication
– Rear View –
CF1
X1
mark
Mark Center frequency
red 10.70 MHz
blue 10.67 MHz
orange 10.73 MHz
black 10.64 MHz
white 10.76 MHz
HOW TO CHANGED THE CERAMIC FILTERS
This model is used two ceramic filters of CF1 and X1.
You must used same type of color marked ceramic filters in order
to meet same specifications.
Therefore, the ceramic filter must changed two pieces together
since it’s supply two pieces in one package as a spare parts.
Model Indication of S2 Indication of country origin Indication of service manual
US FM SENS MADE IN MALAYSIA US
Canadian FM SENS MADE IN MALAYSIA CND or Canadian
E FM MODE MADE IN MALAYSIA E
Saudi Arabia FM MODE MADE IN MALAYSIA EA or Saudi Arabia
5E FM SENS MADE IN MALAYSIA 5E
9E FM MODE No indication 9E
Chinese FM MODE MADE IN MALAYSIA CH or Chinese

– 4 –
SECTION 2
GENERAL This section is extracted from
instruction manual.
LOCATION OF PARTS AND CONTROLS
*1 FM MODE: E, Saudi Arabia, 9E, Chinese Models
FM SENS: US, Canadian, 5E Models

– 5 –
CABINET (REAR) ASSY
NOTE FOR INSTALLATION
Note: Follow the assembly procedure in the numerical order given.
• CABINET (REAR) ASSY
Note: Follow the disassembly procedure in the numerical order given.
SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
Cabinet
(Rear) Assy Main Board
Dial Pointer Setting
Mechanism Deck
(MF-WMSR1-114)
“Holder Sub Assy, Cassette”
Belt, Motor (M901),
“Head, Magnetic” (HRP901)
Set
On installation cabinet (rear) assy adjust
the S2, S305, S307, S308, S310 and knob
(AVLS), knob (PAUSE STOP).
1 two screws
(B1.7
× 9)
L
K
J
IB
C
D
E
F
G
H
cabinet (rear) ass
y
3 Remove the cabinet (rear) assy
(Release all claws from
B to L in alphabetical order.)
A
2 Insert the precision screw driver (1.4 mm flat-blade) into
the slit at claw
A and release the claw.
Note: Apply cloth or spacer
at the tip of the driver
not to break the claw.
2
2
22
2
1
1
1
1
1
S310
S308
S2
S305
S307
3 cabinet (rear) ass
y
knob (AVLS)
knob (PAUSE STOP)
knob (AVLS)

– 6 –
MAIN BOARD
DIAL POINTER SETTING
Note: Follow the assembly procedure in the numerical order given.
3 connector
(CN302)
4 screw
(M1.4)
1 Remove four solders
of motor (M901).
5 two claws
2 flexible board
(CN301)
6 main board
1 Turn the tuning knob
fully in the arrow direction.
2 Mount the pointer
as shown in the figure
A .
pointer guide rib
fig.
A

– 7 –
MECHANISM DECK (MF-WMSR1-114)
BELT, MOTOR (M901), “HEAD, MAGNETIC”(HRP901)
2 Remove the mechanism deck
(MF-WMSR1-114) to direction
of the arrow
A .
1 two claw
s
A
1 belt
3 motor
(M901)
2 two special head screws
(M1.4)
4 two special head screws
(M1.4)
5 “head, magnetic”
(HRP901)

– 8 –
“HOLDER SUB ASSY, CASSETTE”
NOTE FOR INSTALLATION
Note: Follow the assembly procedure in the numerical order given.
• “HOLDER SUB ASSY, CASSETTE”
2 Portion B to release
the hinge plate.
4 spring (torsion)
B
3
“holder sub assy, cassette”
A
1
Insert a precision screw driver (1.4 mm flat-blade)
vertically into portion
A to release the hingeplate.
3 “holder sub assy, cassette”
1 Attach the spring (torsion)
as shown in the figure.
2 Insert the spring (torsion)
in the ditch to direction of the arrow
A .
A

Mode Torque meter Meter reading
FWD 20 – 30 g•cm
(0.28 – 0.41 oz•inch)
FWD CQ-102C 0.4 – 2.0 g•cm
Back Tension (0.006 – 0.02 oz•inch)
REV 20 – 30 g•cm
(0.28 – 0.41 oz•inch)
REV CQ-102RC 0.4 – 2.0 g•cm
Back Tension (0.006 – 0.02 oz•inch)
FF CQ201B More then 40 g•cm
REW (more than 0.6 oz•inch)
– 9 – – 10 –
SECTION 4
MECHANICAL ADJUSTMENT
PRECAUTION
1. Clean the following parts with a denatured-alcahol-moistened
swab :
Playback head Pinch roller
Rubber belt Capstan
2. Demagnetize the playback head using a demagnetizer.
3. Do not use a magnetized screwdriver for adjustments.
4. After adjusting, apply screw-locking compound onto the ad-
justed parts.
5. Unless specified otherwise, use a specified voltage (3.0V) to
perform the adjustments.
Torqu Measurement
SECTION 5
ELECTRICAL ADJUSTMENTS
Tape Speed Adjustment
Setting:
function switch: TAPE
Procedure:
1. Playback WS-48A (tape center) in the FWD state.
2. Adjust RV601 so that the frequency counter reading becomes
3,000 Hz.
Specification Values:
3. Check that deflection of the frequency counter reading between
the beginning and the end of tape is within 1.5% (apporox. 45
Hz).
Adjustment Location:
PRECAUTION
1. Specified voltage : 2.5 V (DC)
2. Setting
VOLUME dial : maximum
SPEAKER switch : OFF
AVLS switch : NORM
MEGA BASS switch : OFF
PB EQ switch : NORM
PAUSE switch : off
ISS : 1
FM SENS switch : DX (US, CND, 5E)
FM MODE switch : ST (E, 9E, EA, CH)
3. Abbreviation
CH : Chinese
CND : Canadian
EA : Saudi Arabia
5E : Refer to “Model Identification” on page 3.
9E : Refer to “Model Identification” on page 3.
TAPE DECK SECTION 0 dB=0.775 V
Test tape
Type Signal Used for
WS-48A 3 kHz, 0 dB Tape Speed Adjustment
Frequency counter
2,985 Hz to 3,015 Hz
TUNER SECTION 0 dB=1 µV
[FM]
Setting:
function switch : FM
[AM]
Setting:
function switch : AM
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
Adjustment Location:
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
US, CND, 5E E, 9E, CH EA
L3 86 MHz 86 MHz 87.35 MHz
CT1-3 109.5 MHz 109.5 MHz 108.25 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
US, CND, 5E E, 9E, CH EA
L2 86 MHz 86 MHz 87.35 MHz
CT1-2 109.5 MHz 109.5 MHz 108.25 MHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1 455 kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
US, CND, 5E E, 9E, CH EA
L4 515 kHz 515 kHz 516.5 kHz
CT1-4 1,750 kHz 1,680 kHz 1,631.5 kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1 620 kHz
CT1-1 1,400 kHz
Put the lead-wire
antenna close to
the set.
AM RF SSG
30% amplitude modulation by
400 Hz signal
output level:as low as possible
FM RF SSG
0.01
µ FMAIN board
TP340 (FM IN)
22.5 kHz frequency deviation
by 400 Hz signal.
output level:as low as possible
+
–
set
Test tape
WS-48A
(3 kHz, 0 dB) frequency counte
r
16 Ω
2
(phones jack) (J301)
+
–
set
16
Ω
level meter
2 (phones jack) (J301
)
Abbreviation
CH : Chinese
CND : Canadian
EA : Saudi Arabia
5E : Refer to “Model Identification” on page 3.
9E : Refer to “Model Identification” on page 3.
– MAIN BOARD (Component Side) – – MAIN BOARD (Conductor Side) –
J302 L1
L2 L3 L4
T1
AM IF Adjustment
AM Tracking Adjustment
FM Tracking Adjustment
AM Frequency
Coverage Adjustment
FM Frequency
Coverage Adjustment
CT1-4
CT1-3
CT1-1
CT1-2
TP340
(FM IN)
J302
RV601Tape Speed Adjustment
RV601

– 11 – – 12 –
WM-SR1
6-1. BLOCK DIAGRAM –TUNER Section –
SECTION 6
DIAGRAMS
14 8
24
2123
FM
RF AMP FM/AM
MIX AMP
FM/AM
OSC
FM
IF AMP DECODER
AMP
SWITCH
DIVIDER/
VCO
FM
DET
LEVEL
DET
AM
DET
FM
MUTE AF
BUFFER
AM
IF AMP
PD1
PD2
AM
RF AMP
LOCAL/DX
SWITCHING
Q70 7
FM RF
IN FM/AM
MIX OUT
CF1
10.7MHz
X1
10.7MHz
CF2
455kHz
12
FM
IF IN 14
13
L-OUT
R-OUT
151610
AM
IF IN
LPF2 AM/XFM
LPF1 M/XST
TUN LED
FM OSC
20
AM OSC
L1
AM
FERRITE-ROD
ANTENNA
FM RF OUT
AM RF
IN
L2
FM RF
FM/AM RF AMP, FM/AM MIX AMP,
FM/AM OSC, FM/AM IF AMP, DET, MPX
IC1
CT1-2 CV1-2
CV1
TUNING
CT1-1 CV1-1
L3
FM OSC
CT1-3 CV1-3
L4
AM OSC
CT1-4CV1-4
CT1-3, L3
FM FREQUENCY
COVERAGE
CT1-4, L4
AM FREQUENCY
COVERAGE
CT1-1, L1
AM TRACKING
CT1-2, L2
FM TRACKING
T1
AM IF
B.P.F.
FL1
FM/AM BAND
SELECT SWITCH
Q33, 34
FM B+
D33
D70
ANT
A
TUNER MUTE
C
(Page 13)
TUNER L/R
B
(Page 13)
(Page 14)
• SIGNAL PATH
: FM
: AM
05
11
ST LED
AGC
TUN
LED
ST
LED
MUTING
CONTROL SWITCH
Q30 – 32
AM B+
FM B+
DET
OUT
AF
AMP
MPX
IN
EXCEPT US, Canadian, 5E models
US, Canadian,
5E models
QUAD
18 17
EXCEPT US, Canadian,
5E models EXCEPT US, Canadian,
5E models
US, Canadian,
5E models
US, Canadian,
5E models
S2
FM MODE
MONO
ST
S2
FM SENS
LOCAL
DX

WM-SR1
– 13 – – 14 – – 15 – – 16 –
6-2. BLOCK DIAGRAM – MAIN Section –
+
–
MIC AMP, ALC
IC341 (1/2)
REC/PB AMP
IC341 (2/2)
TAPE EQ AMP,
MEGA BASS/AVLS CONTROL, HEADPHONE AMP
IC301
POWER AMP
IC401
05
ANT
A
TUNER MUTE
C
(Page 12)
TUNER L/R
TUNER L TUNER R
B
(Page 12)
(Page 11)
S301
(TAPE POWER)
(ON at FF/REW/PLAY modes.)
BATT B+
REC B+
VCC B+
TUNER VCC
MIC B+
S1 (1/2)
(FUNCTION)
FM B+
TUNER B+
D503
D502
AM B+
TAPE B+
SP1
(SPEAKER)
SP2
(TWEETER)
VCC
VCC B+
VCC B+
BATT B+
REC B+
MIC B+
D309
TAPE B+
REC B+
TAPE B+
BATT B+
SWITCHING
Q608
D301
D302
D405
D406
REC/PB MUTE
START/STOP MUTE
TUNER MUTE
D101
D102
D402
D404
D403
HP MUTE
VCC B+
REC B+
SPEAKER/
HEADPHONE
SWITCHING
Q308 POWER MUTE
SWITCH
Q305
VCC B+
–2
–1
MIX
OUT 1
MIX
OUT 2
POWER
IN 1
POWER
IN 2
POWER
OUT 1
POWER
OUT 2
POWER OUT C
VREF
L
R
LOW
BOOST
IN 1
LOW
BOOST
IN 2
MUTE PRE
OUT L
L-CH
HE901
(ERASE)
FWD L
REV L
HRP901
(REC/PB)
D305
D306
TUNER B+
REC B+
TUNER VCC
REC B+
BUF
IN B
PB
OUT B
REC
OUT B
BUF
IN A
MIC
IN B
MIC
OUT B
MIC
IN A
DET 2 OUT
PRE NF 2 PRE OUT 2 PRE NF 1 PRE OUT 1
6
53
+
–
8
71
2
2
PWR MUTE
9
TUNER B+
PRE MUTE
10
26 25 21 22
6
DET 2 IN 3
8
4
35
34
36
1
20
18
24
31
28
15
8
2
14
13
16
21
19
+
+
+
+
ALC MIC
AMP PB AMP
REC AMP
MIC
OUT A 17
ALC MIC
AMP
RIPPLE
FILTER
Q301, 302
B+ SWITCH
Q341, 343
TUNER ON
SWITCH
Q303
TAPE ON
SWITCH
Q304
B+ SWITCH
Q333, 334
REC MUTE
SWITCH
Q359
PB MUTE
SWITCH
Q360
MIX AMP
Q231
B+ SWITCH
Q609
START/STOP
CONTROL SWITCH
Q610
START MUTE
SWITCH
Q606
REC
BIAS OSC
Q351
PRE MUTE
SWITCH
Q310
MUTING
CONTROL SWITCH
Q311
SPEAKER/HEADPHONE
SWITCHING
Q356, 357
TAPE EQ SWITCH
Q101, 201
NF
DET
DET
CONTROL
M.B. ON/OFF
14
LOW
BOOST
J303
MIC
RV301
VOLUME
MUTING
Q141
MUTING
Q241
PB
OUT A
REC
OUT A
9
3
EQ
AMP POWER
AMP
POWER
AMP
POWER
AMP
MODE
CONTROL
CIRCUIT
PB AMP
REC AMP
RADIO/TAPE
11
12
PWSW
REC/PB
R-CH
S303 (1/4)
S303 (2/4)
REC PB
S303
(REC/PB)
REC PB
S303 (4/4)
(REC/PB)
OFF ON
S309
REC PB
S303 (4/4)
(REC/PB) NORM LIMIT
CrO 2 /METAL
NORM
PB EQ
S310
VREF
OFF
ON
MEGA BASS
S306
AVLS
S305
OFF ON
PAUSE ç
S308
MUTE
PRE
OUT R
FWD R
REV R
VREF
VREF
23
30
29
32
EQ
AMP
+
–
+
–
+
–
VREF
VREF
MIX 2
MIX 1
SP/HP
T351
BIAS OSC
S307
ISS 3
2
1
+
J301
(HEADPHONE)
2
D401
D407
+
+
–
SPEED
CONTROL
MOTOR
CONTROL SWITCH
Q603, 604
MOTOR
BRAKE SWITCH
Q601
CAPSTAN/REEL
MOTOR DRIVE
IC601
M901
(CAPSTAN/REEL)
MOTOR
DRIVE
CIRCUIT
SWITCH &
LOGIC
CIRCUIT
BIAS
REFERENCE
VOLTAGE
OSC
CIRCUIT
STOP MUTE
SWITCH
Q607
TH601
TAPE SPEED
RV601
S/S
VREF
IN+
COMPARATOR
VSP
OUT
OSC
13
14
11
15
16
17
WOUT
6
VOUT
5
UOUT
WV
U
4
SPEAKER
DRY BATTERY
SIZE ‘‘AA’’
(IEC DESIGNATION R6)
2PCS. 3V
FM
AM
TAPE
(RADIO OFF)
S1 (2/2)
(FUNCTION)
FM
AM
TAPE
(RADIO OFF)
D308
BATT
J302
DC IN 3V
–+
• SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY
: TAPE REC
: MIC INPUT

WM-SR1
– 18 – – 19 – – 20 –
6-3. PRINTED WIRING BOARD
• Semiconductor
Location
(Conductor Side)
Ref.No. Location
D70 B-2
D308 H-6
D502 F-6
D503 F-6
IC1 C-5
IC301 F-4
IC341 D-6
IC401 G-2
IC601 H-5
Q70 B-2
Q101 G-5
Q201 F-5
Q301 G-4
Q302 G-4
Q303 H-4
Q304 G-4
Q333 H-2
Q351 I-4
• Semiconductor
Location
(Component Side)
Ref.No. Location
D33 E-2
D101 H-6
D102 H-6
D301 G-2
D302 G-2
D305 E-5
D306 E-5
D309 G-5
D401 F-3
D402 F-2
D403 G-2
D404 G-2
D405 G-3
D406 F-3
D407 G-2
Q30 G-5
Q31 F-2
Q32 G-2
Q33 E-2
Q34 E-2
Q141 B-5
Q231 E-3
Q241 B-5
Q305 E-5
Q308 G-5
Q310 F-5
Q311 G-4
Q334 F-2
Q341 D-6
Q343 D-5
Q356 E-4
Q357 F-4
Q359 H-4
Q360 H-4
Q601 H-5
Q603 H-5
Q604 H-5
Q606 H-6
Q607 H-5
Q608 G-5
Q609 G-6
Q610 G-6
Note on Printed Wiring Board:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•®: Through hole.
•¢: internal component.
•b: 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.
• Abbreviation
CH : Chinese model.
CND : Canadian model.
EA : Saudi Arabia model.
5E : Refer to “Model Identification” on page 3.
9E : Refer to “Model Identification” on page 3.
WM-SR1

WM-SR1
– 21 – – 22 – – 23 – – 24 –
6-4. SCHEMATIC DIAGRAM • See page 25 for IC Block 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 inΩand 1/4W or less unless otherwise
specified.
•¢: internal component.
•C: panel designation.
•U: B+ Line.
•H: adjustment for repair.
• Power voltage is dc 3 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 : FM
( ) : AM
〈〈 〉〉 : TAPE PLAY
[ ] : TAPE REC
• Voltagesaretakenwith aVOM(Inputimpedance 10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F: FM
f: AM
E: TAPE PLAY
d: TAPE REC
N: MIC INPUT
• Abbreviation
CH : Chinese model.
CND : Canadian model.
EA : Saudi Arabia model.
5E : Refer to “Model Identification” on page 3.
9E : Refer to “Model Identification” on page 3.
• Waveforms
1T351 (REC mode)
50 V/DIV, 10 µs/DIV
2IC601 !¡ OSC (REC mode)
10 mV/DIV, 500 µs/DIV
80 Vp-p
20
µ s
42 mVp-p
1.5 ms

– 25 – – 26 – – 27 – – 28 –
•IC Block Diagrams
– MAIN Board –
IC1 TA2111F- (EL)
IC301 LA4585M-TLM
IC601 LB1979V-TLM
(1) CABINET SECTION
SECTION 7
EXPLODED VIEWS
•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 and packing materials are given
in the last of the electrical 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
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
13-932-037-01 SPRING (CASSETTE)
23-930-036-01 SPRING (REC)
33-930-035-01 LEVER (REC)
43-029-317-01 CABINET (FRONT)
53-318-382-01 SCREW (1.7X3), TAPPING
63-029-330-01 BRACKET (SPEAKER)
73-031-417-01 SPRING (TORSION)
8X-3376-836-1 HOLDER SUB ASSY, CASSETTE
(E, 9E, Chinese)
8X-3376-838-1 HOLDER SUB ASSY, CASSETTE (Saudi Arabia)
8X-3376-839-1 HOLDER SUB ASSY, CASSETTE
(US, Canadian, 5E)
93-930-021-11 BUTTON (REC) (r)
10 3-930-026-01 BUTTON (REW) ())
11 3-930-024-01 BUTTON (PLAY) (()
12 3-930-025-01 BUTTON (FF) (0)
13 3-930-023-01 BUTTON (STOP) (p)
14 3-022-294-01 POINTER
15 3-022-293-01 KNOB, TUNING
16 A-3021-166-A MAIN BOARD, COMPLETE (E, 9E, Chinese)
16 A-3021-167-A MAIN BOARD, COMPLETE (Saudi Arabia)
16 A-3021-168-A MAIN BOARD, COMPLETE (US)
16 A-3021-169-A MAIN BOARD, COMPLETE (Canadian, 5E)
17 3-029-332-01 TERMINAL (–), BATTERY
18 3-031-416-01 TERMINAL (+), BATTERY
19 3-015-285-01 SCREW (M1.4), TOOTHED LOCK (WH)
20 3-022-580-01 SHEET
21 3-029-318-01 CABINET (REAR) (E, Saudi Arabia, Chinese)
21 3-029-318-11 CABINET (REAR) (US, Canadian, 5E)
21 3-029-318-21 CABINET (REAR) (9E)
22 3-318-203-92 SCREW (B1.7X9), TAPPING
23 3-019-856-51 LID, BATTERY CASE
24 3-930-022-11 KNOB (AVLS)
25 3-029-320-01 KNOB (PAUSE STOP)
26 3-022-581-01 PLATE, LIGHT GUIDE
27 3-035-547-01 CUSHION (3.8X25)
28 3-035-147-01 CUSHION (11X26)
L1 1-754-041-11 ANTENNA, FERRITE-ROD (AM)
SP1 1-505-794-21 SPEAKER (5.0cm)
(2) MECHANISM DECK SECTION
(MF-WMSR1-114)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
51 3-703-816-04 SCREW (M1.4), SPECIAL HEAD
52 3-704-197-71 SCREW (M1.4X4.5), LOCKING
53 X-3378-976-1 LEVER (NL) ASSY, PINCH
55 3-921-797-01 WASHER
56 X-3376-931-1 CHASSIS (COMP) ASSY (GL-02-REC)
57 3-938-613-12 LEVER (OW), DETECTION
58 3-920-990-21 SPRING (UD), COMPRESSION
59 3-921-335-03 WASHER, LEVER
AM RF IN FM RF OUT
FM RF IN
RF GND
AM LOW-CUT
FM/AM
MIX OUT
AGC
VCC
AM IF IN
FM IF IN
GND
TUN LED
ST LED
QUAD
FM OSC AM OSC AFC DET OUT MPX IN LPF2 LPF1 L-OUT R-OUT
7
5431 2 6 8 9 1210 11
141516
17
181921 20 24 23
RF VCC
22 13
ΦΦ DECODER
VCO
DIVIDER
ST/MONO
FM/AM
AF
AMP
FM
MUTE
AF BUFFER
FM
DET
AM
DET
AM
RF AMP
FM
RF AMP
FM
MIX
FM
OSC
AM
OSC
AM
MIX
TUN
LED
ST
LED
FM IF
AMP
AM IF
AMP
AGC
LEVEL
DET
SW OUT 1 PRE OUT 1
POWER IN 1
DET 2 OUT
DET 2 IN
POWER OUT 1
POWER GND
POWER OUT C
VCC
POWER OUT 2
PWR MUTE SW
LOW BOOST
IN 2
H.P.2
LOW BOOST NF
L.P.1
FWD/REV SW
PRE MUTE SW
DET 1 OUT
L.P.2
LOW BOOST SW
PRE NF 1 LOW BOOST IN 1 H.P.1
75431 2 6 8 9
12
10
11
14
15
16
17
18
19
21 2023 22
PRE OUT 2 SW OUT 2
25 24
PRE GND PRE NF 2
27 26
13
PRE REV IN 2
PRE REV IN 1
PRE FWD IN 2
PRE FWD IN 1
MIX OUT 2
POWER IN 2
MIX OUT 1
R.F.REF
VREF
34
36
35
32
31
30
29
28
33
LOW
BOOST
SYSTEM
CONTROL
DET
DET
RIPPLE
FILTER
PRE 1PRE 2
MIX
1
MIX
2
PWR
1
PWR
C
PWR
2
REF
REF
+
–
+ – + –
+ –
+
–
REF
REF
REF
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 26 8 9 10
1112131415
16
1820 19
STARTING
DETECT
POWER
SUPPLY
BIAS
OSCILLATING
CIRCUIT
SPEED CONTROL
REFERENCE VOLTAGE
REFERENCE
VOLTAGE
CURRENT
DETECT
SPEED
DETECT
WAVEFORM DETECT
COMMUTATIONSTARTING LOGIC
SOFT SWITCH
PRE DRIVER
+
–
17
•Abbreviation
5E: Refer to “Model Identification” on
page 3.
9E: Refer to “Model Identification” on
page 3.
7
8
9
1011 12 13 14
15
17
16
18
19
26 20
22 24 25 24
22
21
23
1
2
3
4
5
6
27
28
MF-WMSR1-114
not
supplied
L1
SP1
51
HRP901
HE901
M901
52
53
55
56 57
58
59
60
61
62
63
60 3-923-530-11 SLEEVE (M)
61 3-728-091-01 WASHER, STOPPER
62 X-3372-619-3 WHEEL ASSY (NP), CAPSTAN
63 3-013-560-11 BELT
HE901 1-500-291-11 HEAD, MAGNETIC (ERASE)
HRP901 1-500-595-12 HEAD, MAGNETIC(REC/PB)
M901 1-698-839-13 MOTOR (CAPSTAN/REEL) (WITH PULLEY)
Ver. 1.1

– 29 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
A-3021-166-A MAIN BOARD, COMPLETE (E, 9E, Chinese)
A-3021-167-A MAIN BOARD, COMPLETE (Saudi Arabia)
A-3021-168-A MAIN BOARD, COMPLETE (US)
A-3021-169-A MAIN BOARD, COMPLETE (Cnadian, 5E)
*********************
3-031-416-01 TERMINAL (+), BATTERY
3-029-332-01 TERMINAL (-), BATTERY
< CAPACITOR >
C1 1-163-086-00 CERAMIC CHIP 3PF 50V
(Saudi Arabia)
C1 1-163-217-11 CERAMIC CHIP 1PF 0.25PF 50V
(EXCEPT Saudi Arabia)
C3 1-163-093-00 CERAMIC CHIP 10PF 5% 50V
(EXCEPT Saudi Arabia)
C3 1-163-101-00 CERAMIC CHIP 22PF 5% 50V
(Saudi Arabia)
C4 1-163-091-00 CERAMIC CHIP 8PF 50V
(EXCEPT Saudi Arabia)
C5 1-163-097-00 CERAMIC CHIP 15PF 5% 50V
(EXCEPT Saudi Arabia)
C5 1-163-101-00 CERAMIC CHIP 22PF 5% 50V
(Saudi Arabia)
C6 1-163-088-00 CERAMIC CHIP 5PF 50V
(Saudi Arabia)
C6 1-163-090-00 CERAMIC CHIP 7PF 50V
(EXCEPT Saudi Arabia)
C7 1-163-085-00 CERAMIC CHIP 2PF 50V
(Saudi Arabia)
C8 1-163-091-00 CERAMIC CHIP 8PF 50V
(EXCEPT Saudi Arabia)
C8 1-163-092-00 CERAMIC CHIP 9PF 0.25PF 50V
(Saudi Arabia)
C9 1-162-911-11 CERAMIC CHIP 6PF 0.5PF 50V
C10 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C11 1-164-489-11 CERAMIC CHIP 0.22uF 10% 16V
C12 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V
C13 1-164-346-11 CERAMIC CHIP 1uF 16V
C14 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V
C15 1-124-584-00 ELECT 100uF 20% 10V
C16 1-163-989-11 CERAMIC CHIP 0.033uF 10% 25V
C17 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V
C18 1-164-005-11 CERAMIC CHIP 0.47uF 25V
C19 1-164-357-11 CERAMIC CHIP 1000PF 5% 50V
(EXCEPT US, Canadian, 5E)
C20 1-164-357-11 CERAMIC CHIP 1000PF 5% 50V
(US, Canadian, 5E)
C21 1-164-005-11 CERAMIC CHIP 0.47uF 25V
C22 1-164-005-11 CERAMIC CHIP 0.47uF 25V
C23 1-163-023-00 CERAMIC CHIP 0.015uF 5% 50V
(EXCEPT US, Canadian, 5E)
C23 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V
(US, Canadian, 5E)
C24 1-163-023-00 CERAMIC CHIP 0.015uF 5% 50V
(EXCEPT US, Canadian, 5E)
C24 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V
(US, Canadian, 5E)
C29 1-104-908-11 TANTAL. CHIP 47uF 20% 4V
C30 1-164-506-11 CERAMIC CHIP 4.7uF 16V
C31 1-164-506-11 CERAMIC CHIP 4.7uF 16V
C32 1-135-149-21 TANTALUM CHIP 2.2uF 20% 10V
C52 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V
C53 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V
C55 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V
C70 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
(US, Canadian, 5E)
C71 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
(US, Canadian, 5E)
C100 1-124-635-00 ELECT 220uF 20% 6.3V
C101 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C103 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C104 1-135-201-11 TANTALUM CHIP 10uF 20% 4V
C105 1-164-346-11 CERAMIC CHIP 1uF 16V
C106 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C107 1-164-346-11 CERAMIC CHIP 1uF 16V
C108 1-164-161-11 CERAMIC CHIP 0.0022uF 10% 100V
C142 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C143 1-164-346-11 CERAMIC CHIP 1uF 16V
C144 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C145 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V
C146 1-164-005-11 CERAMIC CHIP 0.47uF 25V
C147 1-135-145-11 TANTALUM CHIP 0.47uF 10% 35V
C148 1-164-346-11 CERAMIC CHIP 1uF 16V
C149 1-164-346-11 CERAMIC CHIP 1uF 16V
C150 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V
C151 1-162-953-11 CERAMIC CHIP 100PF 5% 50V
C201 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C203 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C204 1-135-201-11 TANTALUM CHIP 10uF 20% 4V
SECTION 8
ELECTRICAL PARTS LIST
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
• Abbreviation
5E: Refer to “Model Identification on
page 3.
9E: Refer to “Model Identification on
page 3.
When indicating parts by reference
number, please include the board.
MAIN

– 30 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
C205 1-164-346-11 CERAMIC CHIP 1uF 16V
C206 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C207 1-164-346-11 CERAMIC CHIP 1uF 16V
C208 1-164-161-11 CERAMIC CHIP 0.0022uF 10% 100V
C242 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C243 1-164-346-11 CERAMIC CHIP 1uF 16V
C244 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C245 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V
C246 1-164-005-11 CERAMIC CHIP 0.47uF 25V
C247 1-135-145-11 TANTALUM CHIP 0.47uF 10% 35V
C248 1-164-346-11 CERAMIC CHIP 1uF 16V
C249 1-164-346-11 CERAMIC CHIP 1uF 16V
C250 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V
C251 1-162-953-11 CERAMIC CHIP 100PF 5% 50V
C265 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C301 1-164-346-11 CERAMIC CHIP 1uF 16V
C302 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V
C303 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C304 1-164-489-11 CERAMIC CHIP 0.22uF 10% 16V
C305 1-164-505-11 CERAMIC CHIP 2.2uF 16V
C306 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C307 1-135-180-21 TANTALUM CHIP 3.3uF 20% 6.3V
C308 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V
C309 1-135-201-11 TANTALUM CHIP 10uF 20% 4V
C310 1-165-128-11 CERAMIC CHIP 0.22uF 16V
C311 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C312 1-126-153-11 ELECT 22uF 20% 6.3V
C313 1-162-953-11 CERAMIC CHIP 100PF 5% 50V
C314 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C315 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C316 1-104-847-11 TANTAL. CHIP 22uF 20% 4V
C317 1-104-847-11 TANTAL. CHIP 22uF 20% 4V
C318 1-164-346-11 CERAMIC CHIP 1uF 16V
C319 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V
C320 1-135-149-21 TANTALUM CHIP 2.2uF 20% 10V
C321 1-135-149-21 TANTALUM CHIP 2.2uF 20% 10V
C325 1-135-202-21 TANTAL. CHIP 22uF 20% 4V
C326 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C332 1-124-584-00 ELECT 100uF 20% 10V
C337 1-164-346-11 CERAMIC CHIP 1uF 16V
C341 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C342 1-104-847-11 TANTAL. CHIP 22uF 20% 4V
C343 1-124-589-11 ELECT 47uF 20% 16V
C344 1-104-847-11 TANTAL. CHIP 22uF 20% 4V
C345 1-104-908-11 TANTAL. CHIP 47uF 20% 4V
C346 1-164-362-11 CERAMIC CHIP 470PF 5% 50V
C347 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C348 1-164-346-11 CERAMIC CHIP 1uF 16V
C349 1-162-953-11 CERAMIC CHIP 100PF 5% 50V
C350 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V
C351 1-104-908-11 TANTAL. CHIP 47uF 20% 4V
C352 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C353 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C354 1-163-145-00 CERAMIC CHIP 0.0015uF 5% 50V
C355 1-162-957-11 CERAMIC CHIP 220PF 5% 50V
C356 1-162-961-11 CERAMIC CHIP 330PF 10% 50V
C357 1-162-957-11 CERAMIC CHIP 220PF 5% 50V
C358 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C359 1-165-128-11 CERAMIC CHIP 0.22uF 16V
C361 1-164-506-11 CERAMIC CHIP 4.7uF 16V
C362 1-164-506-11 CERAMIC CHIP 4.7uF 16V
C401 1-162-953-11 CERAMIC CHIP 100PF 5% 50V
C402 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V
C403 1-164-489-11 CERAMIC CHIP 0.22uF 10% 16V
C404 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C405 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C406 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C407 1-135-201-11 TANTALUM CHIP 10uF 20% 4V
C408 1-162-953-11 CERAMIC CHIP 100PF 5% 50V
C409 1-165-128-11 CERAMIC CHIP 0.22uF 16V
C601 1-164-344-11 CERAMIC CHIP 0.068uF 10% 25V
C602 1-107-823-11 CERAMIC CHIP 0.47uF 10% 16V
C603 1-126-246-11 ELECT CHIP 220uF 20% 4V
C604 1-164-505-11 CERAMIC CHIP 2.2uF 16V
C605 1-164-344-11 CERAMIC CHIP 0.068uF 10% 25V
C606 1-164-344-11 CERAMIC CHIP 0.068uF 10% 25V
C607 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V
C608 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C609 1-164-506-11 CERAMIC CHIP 4.7uF 16V
C610 1-135-201-11 TANTALUM CHIP 10uF 20% 4V
C612 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C616 1-164-489-11 CERAMIC CHIP 0.22uF 10% 16V
< FILTER >
CF1 1-767-733-71 FILTER ASSY, CERAMIC
CF2 1-527-870-00 FILTER
< CONNECTER >
CN301 1-750-346-21 CONNECTOR, FFC/EPC (ZIF) 6P
CN302 1-785-637-11 CONNECTOR (SMT) 3P
< TRIMMER >
CT1 1-141-595-21 CAP, VAR (TUNING)
< VARIABLE CAPACITOR>
CT1 1-141-595-21 CAP, VAR (TUNING)
< DIODE >
D33 8-719-404-50 DIODE MA111-TX
D70 8-719-038-20 DIODE 1SS314 (US, Cnadian, 5E)
D101 8-719-404-50 DIODE MA111-TX
D102 8-719-404-50 DIODE MA111-TX
D301 8-719-404-50 DIODE MA111-TX
D302 8-719-404-50 DIODE MA111-TX
D305 8-719-404-50 DIODE MA111-TX
D306 8-719-404-50 DIODE MA111-TX
D308 8-719-074-20 LED LNV210C6AOSO (BATT)
D309 8-719-404-50 DIODE MA111-TX
D401 8-719-404-50 DIODE MA111-TX
D402 8-719-404-50 DIODE MA111-TX
D403 8-719-404-50 DIODE MA111-TX
D404 8-719-404-50 DIODE MA111-TX
D405 8-719-404-50 DIODE MA111-TX
D406 8-719-404-50 DIODE MA111-TX
MAIN

– 31 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
D407 8-719-420-51 DIODE MA729
D502 8-719-404-50 DIODE MA111-TX
D503 8-719-404-50 DIODE MA111-TX
< FILTER >
FL1 1-236-711-21 FILTER, BAND PASS
< IC >
IC1 8-759-493-20 IC TA2111F- (EL)
IC301 8-759-332-69 IC LA4585M-TLM
IC341 8-759-062-63 IC TA8155FN
IC401 8-759-702-02 IC NJM062M
IC601 8-759-447-73 IC LB1979V-TLM
< JACK >
J301 1-565-287-11 JACK (2)
J302 1-750-061-11 JACK,DC (POLARITY UNIFIED TYPE)
(DC IN 3V)
J303 1-565-287-91 JACK (MIC)
< SHORT >
JC101 1-216-296-91 SHORT 0
JC102 1-216-296-91 SHORT 0
JC103 1-216-296-91 SHORT 0
< COIL >
L2 1-416-623-11 COIL (WITH CORE) (EXCEPT Saudi Arabia)
L2 1-416-624-11 COIL (WITH CORE) (Saudi Arabia)
L3 1-416-626-11 COIL (WITH CORE) (EXCEPT Saudi Arabia)
L3 1-416-627-11 COIL (WITH CORE) (Saudi Arabia)
L4 1-406-408-11 COIL (OSC) (EXCEPT Saudi Arabia)
L4 1-406-409-11 COIL (OSC) (Saudi Arabia)
L5 1-412-010-41 INDUCTOR CHIP 22uH
L101 1-412-002-31 INDUCTOR CHIP 4.7uH
L201 1-412-002-31 INDUCTOR CHIP 4.7uH
L301 1-412-002-31 INDUCTOR CHIP 4.7uH
L302 1-412-002-31 INDUCTOR CHIP 4.7uH
L303 1-412-002-31 INDUCTOR CHIP 4.7uH
L304 1-412-002-31 INDUCTOR CHIP 4.7uH
< TRANSISTOR >
Q30 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q31 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q32 8-729-216-22 TRANSISTOR 2SA1162-G
Q33 8-729-216-22 TRANSISTOR 2SA1162-G
Q34 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q70 8-729-102-07 TRANSISTOR 2SC2223-F13
(US,Canadian,5E)
Q101 8-729-421-26 TRANSISTOR UN5216
Q141 8-729-230-49 TRANSISTOR 2SC2712-YG
Q201 8-729-421-26 TRANSISTOR UN5216
Q231 8-729-216-22 TRANSISTOR 2SA1162-G
Q241 8-729-230-49 TRANSISTOR 2SC2712-YG
Q301 8-729-402-13 TRANSISTOR XN1501
Q302 8-729-141-48 TRANSISTOR 2SB624-BV345
Q303 8-729-028-97 TRANSISTOR DTC114TUA-T106
Q304 8-729-028-97 TRANSISTOR DTC114TUA-T106
Q305 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q308 8-729-028-97 TRANSISTOR DTC114TUA-T106
Q310 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q311 8-729-420-16 TRANSISTOR XN1214
Q333 8-729-141-48 TRANSISTOR 2SB624-BV345
Q334 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q341 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q343 8-729-230-49 TRANSISTOR 2SC2712-YG
Q351 8-729-141-75 TRANSISTOR 2SD596DV345
Q356 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q357 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q359 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q360 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q601 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q603 8-729-216-22 TRANSISTOR 2SA1162-G
Q604 8-729-216-22 TRANSISTOR 2SA1162-G
Q606 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q607 8-729-028-76 TRANSISTOR DTA114YUA-T106
Q608 8-729-028-99 TRANSISTOR DTC114YUA-T106
Q609 8-729-216-22 TRANSISTOR 2SA1162-G
Q610 8-729-420-16 TRANSISTOR XN1214
< RESISTOR >
R2 1-216-839-11 METAL CHIP 33K 5% 1/16W
R3 1-216-815-11 METAL CHIP 330 5% 1/16W
R5 1-216-847-11 METAL CHIP 150K 5% 1/16W
R6 1-216-847-11 METAL CHIP 150K 5% 1/16W
R30 1-216-833-11 METAL CHIP 10K 5% 1/16W
R32 1-216-849-11 METAL CHIP 220K 5% 1/16W
R33 1-216-825-11 METAL CHIP 2.2K 5% 1/16W
R34 1-216-819-11 METAL CHIP 680 5% 1/16W
R70 1-216-819-11 METAL CHIP 680 5% 1/16W
(US, Canadian, 5E)
R71 1-216-825-11 METAL CHIP 2.2K 5% 1/16W
(US, Canadian, 5E)
R72 1-216-837-11 METAL CHIP 22K 5% 1/16W
(US, Canadian, 5E)
R73 1-216-821-11 METAL CHIP 1K 5% 1/16W
(EXCEPT US, Canadian, 5E)
R101 1-216-855-11 METAL CHIP 680K 5% 1/16W
R102 1-216-819-11 METAL CHIP 680 5% 1/16W
R103 1-216-835-11 METAL CHIP 15K 5% 1/16W
R104 1-216-837-11 METAL CHIP 22K 5% 1/16W
R105 1-216-845-11 METAL CHIP 100K 5% 1/16W
R107 1-216-845-11 METAL CHIP 100K 5% 1/16W
R108 1-216-797-11 METAL CHIP 10 5% 1/16W
R112 1-216-845-11 METAL CHIP 100K 5% 1/16W
R139 1-216-833-11 METAL CHIP 10K 5% 1/16W
R141 1-216-825-11 METAL CHIP 2.2K 5% 1/16W
R142 1-216-833-11 METAL CHIP 10K 5% 1/16W
R143 1-216-849-11 METAL CHIP 220K 5% 1/16W
R144 1-216-833-11 METAL CHIP 10K 5% 1/16W
R145 1-216-833-11 METAL CHIP 10K 5% 1/16W
R146 1-216-845-11 METAL CHIP 100K 5% 1/16W
R149 1-216-817-11 METAL CHIP 470 5% 1/16W
R150 1-216-827-11 METAL CHIP 3.3K 5% 1/16W
R201 1-216-855-11 METAL CHIP 680K 5% 1/16W
R202 1-216-819-11 METAL CHIP 680 5% 1/16W
R203 1-216-835-11 METAL CHIP 15K 5% 1/16W
MAIN

– 32 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
R204 1-216-837-11 METAL CHIP 22K 5% 1/16W
R205 1-216-845-11 METAL CHIP 100K 5% 1/16W
R207 1-216-845-11 METAL CHIP 100K 5% 1/16W
R208 1-216-797-11 METAL CHIP 10 5% 1/16W
R212 1-216-845-11 METAL CHIP 100K 5% 1/16W
R239 1-216-833-11 METAL CHIP 10K 5% 1/16W
R240 1-216-797-11 METAL CHIP 10 5% 1/16W
R241 1-216-825-11 METAL CHIP 2.2K 5% 1/16W
R242 1-216-833-11 METAL CHIP 10K 5% 1/16W
R243 1-216-849-11 METAL CHIP 220K 5% 1/16W
R244 1-216-833-11 METAL CHIP 10K 5% 1/16W
R245 1-216-833-11 METAL CHIP 10K 5% 1/16W
R249 1-216-817-11 METAL CHIP 470 5% 1/16W
R250 1-216-827-11 METAL CHIP 3.3K 5% 1/16W
R301 1-216-833-11 METAL CHIP 10K 5% 1/16W
R302 1-216-829-11 METAL CHIP 4.7K 5% 1/16W
R303 1-216-821-11 METAL CHIP 1K 5% 1/16W
R306 1-216-819-11 METAL CHIP 680 5% 1/16W
R308 1-216-829-11 METAL CHIP 4.7K 5% 1/16W
R309 1-216-009-91 RES, CHIP 22 5% 1/10W
R310 1-216-829-11 METAL CHIP 4.7K 5% 1/16W
R311 1-216-789-11 METAL CHIP 2.2 5% 1/16W
R312 1-216-857-11 METAL CHIP 1M 5% 1/16W
R313 1-216-833-11 METAL CHIP 10K 5% 1/16W
R314 1-216-845-11 METAL CHIP 100K 5% 1/16W
R331 1-216-819-11 METAL CHIP 680 5% 1/16W
R332 1-216-827-11 METAL CHIP 3.3K 5% 1/16W
R333 1-216-819-11 METAL CHIP 680 5% 1/16W
R341 1-216-833-11 METAL CHIP 10K 5% 1/16W
R342 1-216-841-11 METAL CHIP 47K 5% 1/16W
R344 1-216-857-11 METAL CHIP 1M 5% 1/16W
R345 1-216-825-11 METAL CHIP 2.2K 5% 1/16W
R350 1-216-845-11 METAL CHIP 100K 5% 1/16W
R353 1-216-009-91 RES, CHIP 22 5% 1/10W
R354 1-216-797-11 METAL CHIP 10 5% 1/16W
R355 1-216-829-11 METAL CHIP 4.7K 5% 1/16W
R361 1-216-845-11 METAL CHIP 100K 5% 1/16W
R363 1-216-833-11 METAL CHIP 10K 5% 1/16W
R364 1-216-833-11 METAL CHIP 10K 5% 1/16W
R401 1-216-845-11 METAL CHIP 100K 5% 1/16W
R402 1-216-845-11 METAL CHIP 100K 5% 1/16W
R403 1-216-825-11 METAL CHIP 2.2K 5% 1/16W
R404 1-216-853-11 METAL CHIP 470K 5% 1/16W
R405 1-216-825-11 METAL CHIP 2.2K 5% 1/16W
R406 1-216-821-11 METAL CHIP 1K 5% 1/16W
R407 1-216-829-11 METAL CHIP 4.7K 5% 1/16W
R408 1-216-841-11 METAL CHIP 47K 5% 1/16W
R409 1-216-841-11 METAL CHIP 47K 5% 1/16W
R601 1-216-857-11 METAL CHIP 1M 5% 1/16W
R602 1-216-857-11 METAL CHIP 1M 5% 1/16W
R603 1-216-857-11 METAL CHIP 1M 5% 1/16W
R604 1-216-831-11 METAL CHIP 6.8K 5% 1/16W
R605 1-216-821-11 METAL CHIP 1K 5% 1/16W
R606 1-216-845-11 METAL CHIP 100K 5% 1/16W
R607 1-216-833-11 METAL CHIP 10K 5% 1/16W
R608 1-216-821-11 METAL CHIP 1K 5% 1/16W
R609 1-216-821-11 METAL CHIP 1K 5% 1/16W
R610 1-216-809-11 METAL CHIP 100 5% 1/16W
R611 1-216-809-11 METAL CHIP 100 5% 1/16W
R612 1-216-833-11 METAL CHIP 10K 5% 1/16W
R613 1-216-825-11 METAL CHIP 2.2K 5% 1/16W
R617 1-216-819-11 METAL CHIP 680 5% 1/16W
R618 1-216-833-11 METAL CHIP 10K 5% 1/16W
R619 1-216-821-11 METAL CHIP 1K 5% 1/16W
< VARIABLE RESISTOR >
RV301 1-225-362-11 RES, VAR, CARBON 10k/10k (VOLUME)
RV601 1-223-994-21 RES, CARBON ADJ VAR 4.7K
< SWITCH >
S1 1-692-299-11 SWITCH, SLIDE (FUNCTION)
S2 1-762-078-11 SWITCH, SLIDE
(FM SENS (US, Canadian, 5E))
(FM MODE (EXCEPT US,Canadian, 5E))
S301 1-572-288-21 SWITCH, PUSH (TAPE POWER)
S303 1-762-541-11 SWITCH, SLIDE (REC/PB)
S305 1-762-078-11 SWITCH, SLIDE (AVLS)
S306 1-692-901-11 SWITCH, SLIDE (MEGA BASS)
S307 1-762-079-11 SWITCH, SLIDE (ISS)
S308 1-762-078-11 SWITCH, SLIDE (PAUSE)
S309 1-692-901-11 SWITCH, SLIDE (SPEAKER)
S310 1-762-078-11 SWITCH, SLIDE (PB EQ)
< TRANSFORMER >
T1 1-404-949-31 TRANSFORMER, IF
T351 1-427-653-21 TRANSFORMER, BIAS OSCILLATION
< THERMISTOR >
TH601 1-810-794-11 THERMISTOR, POSITIVE
< FILTER >
X1 1-767-733-71 FILTER ASSY, CERAMIC
************************************************************
MISCELLANEOUS
**************
L1 1-754-041-11 ANTENNA, FERRITE-ROD (AM)
HE901 1-500-291-11 HEAD, MAGNETIC (ERASE)
HRP901 1-500-595-11 HEAD, MAGNETIC(REC/PB)
M901 1-698-839-11 MOTOR (CAPSTAN/REEL) (WITH PULLY)
SP1 1-505-794-21 SPEAKER (5.0cm)
************************************************************
MAIN

– 33 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
ACCESSORIES & PACKING MATERIALS
********************************
1-505-521-11 HEADPHONE (MDR-023) (US, Canadian)
1-542-307-11 MICROPHONE
2-389-320-01 CUSHION, LOCK PLATE
3-020-998-01 CLIP, BELT
3-864-898-12 MANUAL, INSTRUCTION (ENGLISH, CHINESE,
KOREAN) (US, E)
3-864-898-22 MANUAL, INSTRUCTION (ENGLISH, FRENCH,
SPANISH, PORTUGUESE) (Canadian, 5E)
3-864-898-32 MANUAL, INSTRUCTION (ENGLISH, CHINESE,
RUSSIAN, ARABIC) (Saudi Arabia, Chinese)
3-864-898-42 MANUAL, INSTRUCTION (ENGLISH, CHINESE,
KOREAN) (9E)
8-953-130-90 HEADPHONE MDR-E805LP/K SET
(EXCEPT US, Canadian)
X-3372-917-1 STAND ASSY, MICROPHONE

2
WM-SR1
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 1999.01 New
1.1 2005.07 Change of Part for Ref. No. 53 on EXPLODED VIEWS
Deleted of Ref. No. 54 on EXPLODED VIEWS (ECN-WMA01448)