Sony WM-FX271FP User manual

1
Ver 1.0 2003. 07
Model Name Using Similar Mechanism WM-FX271
Tape Transport Mechanism Type MF-WMFX171-114
SERVICE MANUAL
US Model
WM-FX271FP
RADIO CASSETTE PLAYER
Frequency range
FM: 87.5 – 108 MHz
AM: 530 – 1,710 kHz
Power requirements
3 V DC batteries R6 (AA) ×2/External DC 3 V power sources
Dimensions
91.4 ×115.5 ×35.9 mm (3 5/8 ×4 5/8 ×1 7/16 inches) (w/h/d) incl.
projecting parts and controls
Mass
Approx. 150 g (5.3 oz.)
Approx. 230 g (8.2 oz.) incl.batteries and a tape
Supplied accessories
Stereo headphones or Stereo earphones (1)
Design and specifications are subject to change without
notice.
SPECIFICATIONS
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-961-044-01
2003G04-1
© 2003. 07
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.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270°C during
repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.

2
TABLE OF CONTENTS
1. GENERAL ........................................................................... 3
2. DISASSEMBLY
2-1. Cabinet (Front) Sub Assy ....................................................4
2-2. Main Board ......................................................................... 5
2-3. Holder (Sub) Assy, Cassette ................................................5
2-4. Mechanism Deck................................................................. 6
2-5. Belt and Motor .................................................................... 6
3. MECHANICAL ADJUSTMENTS ................................. 7
4. ELECTRICAL ADJUSTMENTS
Tape Section ............................................................................ 7
Tuner Section........................................................................... 8
5. DIAGRAMS
5-1. IC Pin Description............................................................. 10
5-2. Block Diagram .................................................................. 11
5-3. Printed Wiring Board ........................................................ 12
5-4. Schematic Diagram ........................................................... 13
6. EXPLODED VIEWS
6-1. Cabinet Section ................................................................. 15
6-2. Tape Mechanism Section-1 ............................................... 16
6-3. Tape Mechanism Section-2 ............................................... 17
7. ELECTRICAL PARTS LIST ........................................ 18
WM-FX271FP
zUNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

3
WM-FX271FP
SECTION 1
GENERAL This section is extracted
from instruction manual.
AVLS
VOLUME
xSTOP
MFF
NPLAY
mREW
TUNING +/–
HOLD
i
MEGA BASS
RADIO ON/OFF
BAND
DC IN 3V
NORM/CrO 2 /METAL
DX/LOCAL or
NORM/CrO
2 /METAL
ST/FM MONO
1-5 (preset)
*
*The button has a tactile dot.
Location of parts and controls

4
WM-FX271FP SECTION 2
DISASSEMBLY
• The equipment can be removed using the following procedure.
Note : Follow the disassembly procedure in the numerical order given.
2-1. CABINET (FRONT) SUB ASSY
Note : When installing, fit the knobs and switches.
1 Insert the precision screwdriver
(1.4 mm flat-blade) into the slit
at claw A and release the claw.
2 Remove the cabinet (front) sub assy.
(Release all claws B to N in
alphabetical order.)
Cabinet (front) sub assy Main boardSet Holder (sub) assy, cassette Belt and Motor
Mechanism deck
A
cabinet (front) sub assy
holder (sub) assy, cassette
B
C
D
E
FHI
J
K
S71
6
G
L
M
N
cabinet (front) sub assy
Note : When removing the cabinet, put cloth
on the end of a screwdriver or use a
polyacetal driver to avoid damage to
the cabinet.

5
WM-FX271FP
2-2. MAIN BOARD
2-3. HOLDER (SUB) ASSY, CASSETTE
2 Insert a precision screwdriver
(1.4 mm flat-blade) vertically
into portion A to release the
hinge plate.
3 Portion B to release the
hinge plate.
4two claws 1HEAD FLEXIBLE board (CN301)
2Unsolder the 4 places.
5MAIN board
3screw (M1.4), toothed lock (WH)
1Open the holder (sub) assy, cassette.
4holder (sub) assy, cassette.
A
B5spring (torsion
)

6
WM-FX271FP
2-4. MECHANISM DECK
2-5. BELT AND MOTOR
1Insert the precision screwdriver
(1.4 mm flat-blade) into the slit
and release three claws.
2Remove the mechanism dec
k
in the direction of the arrow.
• How to apply the belt
1belt
3motor
2two screws (screw (M1.4), toothed lock)
wheel assy (NP), capstan
belt
M901

7
WM-FX271FP
SECTION 3
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
playback head pinch lever assy
capstan wheel assy rubber belt
2. Demagnetize the playback head with a head demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage (2.5V) unless otherwise noted.
Torque Measurement
Mode Torque meter Meter reading
1.97 to 4.90 mN • m
FWD CQ-102C 20 to 50 g • cm
(0.28 to 0.69 oz • inch)
FWD less than 0.19 mN • m
Back Tension CQ-102C less than 2 g • cm
(less than 0.03 oz • inch)
more than 5.89 mN • m
FF, REW CQ-201B more than 60 g • cm
(more than 0.83 oz • inch)
0000
ijack (J301)
digital frequenc
y
counter
set
16 Ω
test tape
WS-48A
(3 kHz, 0 dB)
PRECAUTION
•Supplied voltage : 2.5V
•Switch and control position
VOLUME control : maximum
AVLS switch : NORM
• Test Tape
Type Signal Used for
WS-48A 3 kHz, 0 dB tape speed adjustment
TAPE SECTION 0 dB = 0.775 V
Tape Speed Adjustment
Procedure:
SECTION 4
ELECTRICAL ADJUSTMENTS
1. Playback WS-48A (tape center part) in the FWD state and
adjust RV601 so that the frequency counter reading
becomes 3,000 Hz.
Specification Value:
Digital frequency counter
2,910 to 3,090 Hz
Adjustment Location:
RV601

8
WM-FX271FP
ijack (J301)
set
16 Ω
level meter
(range: 0.5-5 V ac
)
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
digital
voltmeter
TP (VT)
Main board
•Repeat the procedures in each adjustment several times, and the
tracking adjustment should be finally done by the trimmer ca-
pacitors.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
1,000 kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 CT1
620 kHz 1,400 kHz
TUNER SECTION 0 dB = 1 µV
•FM Section
Setting:
RADIO ON/OFF switch: ON
BAND switch : FM
FM Tuning Voltage Adjustment
FM TUNING VOLTAGE ADJUSTMENT
Adjust for a 8.5 ± 0.3 (14.5 ± 0.5)Vdc reading on digital voltmeter.
L3
108 MHz
FM Tracking Adjustment
Modulation: 1 kHz, 75 kHz dev. (100%)
Output level: as low as possible
digital
voltmeter
TP (VT)
Main board
FM RF signal
generator
0.01 µF(FM RF IN)
Main boar
d
(GND)
ijack (J301)
set
16 Ω
level meter
(range: 0.5-5 V ac
)
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
87.5 MHz
•AM Section
Setting:
RADIO ON/OFF switch: ON
BAND switch : AM
AM Tuning Voltage Adjustment
AM TUNING VOLTAGE ADJUSTMENT
Adjust for a 1.1 ± 0.1 Vdc reading on digital voltmeter.
L4
530 kHz
AM IF Adjustment, AM Tracking Adjustment
Modulation: 400Hz, 30%
Output level: as low as possible

9
WM-FX271FP
L3
FM TUNING
VOLTAGE
ADJUSTMENT
L2
FM TRACKING
ADJUSTMENT
L4
AM TUNING
VOLTAGE
ADJUSTMENT
T1
AM IF
ADJUSTMENT
CT1
AM TRACKIN
G
ADJUSTMENT
L1
Adjustment Location: main board
Measurement Points: main board
(FM RF IN)
(VT)
FM RF INVT

10
WM-FX271FP SECTION 5
DIAGRAMS
5-1. IC PIN DESCRIPTION
• IC701 µPD17072GB-559-1A7 (SYSTEM CONTROL/LCD DRIVE)
Pin No. Pin Name I/O Pin Description
1INIT O Initialize output
2, 3 NC — Not used.
4MEGA BASS O MEGA BASS ON/OFF output (L: ON, H: OFF)
5RADIO-ON O Radio circuit power control output
6 – 8 KEY OUT1 – 3 O Key matrix output 1 – 3
9NC—Not used.
10, 11 KEY IN1, 3 I Key input 1, 3
12, 13 BTT-REF1, 2 I Reference voltage input for battery voltage check.
14 MUTE OUT O Mute output (Mute ON: L, Mute OFF: input)
15 SD I SD (with local) signal input
16 BAND O Radio band select output (AM: L, FM: input)
17 HOLD I Key hold input (Key input effect: L, Key input ineffect: H)
18 GND — Ground
19 EO O PLL error out output
20 VCO (AM) I VCO (AM) input
21 VCO (FM/TV) I VCO (FM) input
22 VDD2 — Voltage regulator for PLL.
23 VDD1 — Power supply pin
24 XO — Crystal oscillator output (75 kHz)
25 XI — Crystal oscillator input (75 kHz)
26 VDD5 — Voltage regulator for oscillation circuit.
27 VDD3 — Power supply for LCD driver.
28, 29 CAP1, 2 — Stabilized capacitor connection of crystal oscillation power supply.
30 VDD4 — Power supply for LCD driver.
31 – 34 COM0 – 3 O LCD driver common output
35 – 49 LCD0 – 14 O LCD driver output
50 CE I L: Clock stop, H: Normally operation
51 TAPE ON I At TAPE ON: H
52 BEEP O BEEP output
53 NC — Not used.
54 KEY IN2 I Key input 2
55 NC — Not used.
56 KEY IN4 I Key input 4

11 11
WM-FX271FP
5-2. BLOCK DIAGRAM
D2
D303
L OUT
R OUT
VCC2
QUAD
LPF1
FM/AM RF, IF, MPX
IC1
14
13
6
12
CF2
10.7MHz
X2
RADIO
+B
R CH
R-CH
L
HP901
PLAYBACK
HEAD
L.P.F
Q701,702
TAPE
SPEED
RV601
SYSTEM CONTROL/
LCD DRIVE
IC701
RADIO
+B
CF1
450kHz
L2
FM RF
T1
AM IFT
BATT+B
DC/DC
CONV.
Q307, T301
RADIO+B
SWITCH
Q53
BAND
SWITCH
Q703
NF LEVEL
SWITCH
Q101
MIX
IN(L)
H.PIN(L)
FM/AM MIX
FM IN
1
4
MOTOR SERVO
IC301(2/2)
IN+ 35
M-V REF 34
UOUT
VOUT
WOUT
FM IF
8
AUDIO POWER AMP
IC301(1/2)
REV IN(L)
FWD IN(L)
NF
SYSTEM
6
AM IF
7
FM RF
23
FM OSC
21
AM OSC
20
AM IN
24
LPF2
15
TUN LED
10
KEY OUT1 KEY OUT3
HOLD
17
BTT-REF1
12
X OUT X IN
SYS CONT
HOLD
S701
FUNCTION
KEY
S701, 702, 704-708,
713, 715
VDD
ON
OFF
B.P.F
CP1
DC IN
3V
J302
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
2PCS, 3V
D3
L3
FM OSC
L4
AM OSC
D1
CT1
D731
BATT+B
L1
AM
FERRITE-ROD
ANTENNA
R
FWD
+
–
9 5
POWER MUTE
21
19
REG
IC702 1
30
28
L.B-SW
32
MIX
OUT(L)
RV301-1
24
POWER
IN(L)
PWR
R-CH
COM
L CH
R CH
22
POWER
OUT(L) 16
POWER
OUT(COM) 18
J301
68
35 49
LCD1
LCD14
X701
75kHz
BATT+B
M901
CAPSTAN/
REEL
MOTOR
31 34
COM1
LCD701
LIQUID CRYSTAL
DISPLAY PANEL
COM4
KEY IN1 KEY IN4
10,11,54,56
BEEP
52
MEGA BASS
4
MUTE OUT
14
RADIO-ON
5
BAND
16
EO
19
SD
15
3
2425
39
41
40
R-CH
DX
LOCAL
ST
FM MONO
S303-2
VCO
BUFFER
Q2, 703
20
21
18
17
DET OUT
MPX IN
MUTE
Q306 TAPE +B
RADIO
+B NORM
CrO 2 /
METAL
AMP
+B
BATT
+B
DOLBY B+
SWITCH
Q331
TAPE +B TAPE +B
S303-1
NORM
LIMIT
S305-1
AVLS
26
L. P2
BTT-REF2
13
S301
TAPE
POWER
VDD
S303-2
(COM)
TAPE +B
10
RADIO
+B
Q308
VCO(FM/TV)
VCO(AM)
VOLUME
w
( )
• R-ch is omitted due to same as L-ch.
• Signal path
: FM
: AM
: PB
T1
AM IF
L2
FM
TRACKING
L3
FM
TUNING
VOLTAGE
L4
AM
TRACKING
CT1,L1
AM
TRACKING
15

1212
WM-FX271FP
5-3. PRINTED WIRING BOARD : Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
2345678910111213
M901
CAPSTAN/REEL
MOTOR
M
HP901
PLAYBACK
HEAD
FWD
R
GND 6
GND 5
FWD (R) 4
FWD (L) 3
REF 2
GND 1
L
(FM RF IN)
(VT)
PANEL
C204
C104
C333
19
( )
1-671-695-
14
14
( )
14
14
1-671-695-
S713
S714
S707
S708
S706
S705
S704
S715
S701
S702
Note:
•Y: parts extracted from the conductor side.
•a: Through hole.
•: Pattern from the side which enables seeing.
Ref. No. Location
D1 C-3
D2 C-6
D3 C-8
D301 I-9
D302 D-6
D303 G-9
D701 F-10
IC1 C-5
IC301 H-11
IC701 F-11
IC702 F-13
Q2 D-10
Q101 H-12
Q201 H-12
Q301 D-10
Q302 E-6
Q303 D-6
Q304 G-10
Q305 G-10
Q306 H-10
Q307 G-6
Q308 G-10
Q701 F-12
Q702 F-12
Q703 F-12
Q704 D-12
• Semiconductor
Location

13 13
WM-FX271FP
5-4. SCHEMATIC DIAGRAM • Refer to page 14 for IC Block Diagrams and page 14 for Note on Schematic Diagram.
IC B/D
IC B/D
J301
L1
D1 L4
R4
L2
R5
R3
R1
CT1
R10 R6 R8
R7
L3
D2
D3
R9
Q2
R14
R11
R12
R13
R705
R715
R720
R721
Q701
Q702
S716
R719
L701
IC702
IC701
LCD701
S301
J302
C311
C301
Q308
D301
C302
Q303
R304
D302
Q302
R302
R301
R303
L304
R305R307
Q304
JR301
R306
C304
L201
L101
Q306
R308
Q305
R320R321
RV301
L301
R208
R108
C321
R327
S305
S305
R324
R326
R611
RV601
R608
R606
R605
R601
R609
R319
C104
R106
Q101
R103 R104
R105
R205
R204R203
Q201
R206 C204
R111
CN301
R610
S303
JR2 CP1
T1
R20
CF2
CF1
C22
X2
C28
R408
C307
R311
R312
D303
L302 R309
T301
R21
S707S715 S714
S713
S705S706S708
R707
S701S702
JR704
JR706
S704
R708
D701
R709 R711
R329
R17
C31
Q704
Q301
R313
JR707
R706
X701
Q703
R704
R310
Q307
IC1
IC301
R112
S303
C2 C35
C4
C6
C7
C34
C36
C3
C29
C41
C205
C326
C604
C203 C103
C101 C201
C324
C327
C208C108
C319
C336
C335
C325
C107
C207
C334
C209
C109
C606
C105
C27
C24
C13
C12
C17
C9
C16 C18 C19
C8
C14
C20
C21
C704
C40
C309 C312 C308
C337
TH601
C332
C338
C305
C303
C306
C705
C706
C707
C708
C709
C710
C702
C701
C42
C703
C711
C715
C712
C310
C10
R18
JR14
C25
C26
R15 R16
R703
R701
R328
R702
R210
R110
C333
C605
R207
R107
C5
R2
C601
C602
C603
C608
C23
C714
R710
R712
R723
R725

1414
WM-FX271FP
IC301 LB8115
IC1 TA2111F
• IC Block Diagrams
Note for schematic diagram:
•All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
•%: indicates tolerance.
•f: internal component.
•C: panel designation.
•A: B+ Line.
•H: adjustment for repair.
•Total current is measured with no cassette installed.
•Power voltage is dc 3V and fed with regulated dc power
supply from battery terminal.
•Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
():AM
<>:PB
•Voltages aretakenwithaVOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Signal path.
F: FM
f: AM
E: PB
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
COM
RI
PRE NF1
PRE OUT2
PRE NF2
VREF
POWER OUTC
POWER OUT2
VCC
POWER MUTE
POWER IN1 POWER IN2
MIX OUT1
MIX OUT2
LP.2
R. P2
R.P1
DET OUT
MVREF
IN+
VSP
LOW BOOST IN2
LOW BOOST IN1
LOW BOOST SW
M-GND
R.VREF
(FWD/REW)
PRE MUTE SW
POWER OUT1
POWER GND
MVCC DR WOUT MP-GND VOUT UOUT FC OUT OSC UB VB WB
PRE FWD IN2
PRE REV IN2
PRE REV IN1
PRE FWD IN1
S/S
PRE GND
PRE OUT1
BIAS
R.F
REF
SYS
CONT
DET
VREF
SPEED
LOW
BOOST
PRE DRIVER
OPERATION LOGIC
OSC
PLUSE DET
REF
VOLTAGE
REF VOLTAGE
FOR SPEED CONTROL
CURRENT
DET
OPERATION
DET
FWD/
REV
FREQ
CARC.
+
–
24
1 2
23 22 21 20
AGC
AM
DET
AM
MIX
FM
DET
LEVEL
DET
ST/MONO
FM/AM
TUN
LED
ST
LED
FM
MUTE
AM
OSC
FM
OSC
FM
MIX
DECODE
DIVIDE
VCO
19 18 17 16 15 14 13
3 4 5 6 7 8 9 10 11 12
AF
BUFFER
FM RF
AF
AMP
AM
IF
FM
IF
FM RF IN
RF GND
AM LOW CUT
MIX OUT
AGC
VCC
AM IF IN
FM IF IN
GND
TUN LED
ST LED
QUAD
AM RF IN FM RF OU
T
RF VCC FM OSC AM OSC AFC DET OUT MPX IN LPF2 LPF1 L-OUT R-OUT

15
WM-FX271FP
SECTION 6
EXPLODED VIEWS
NOTE:
•The mechanical parts with no reference
number in the exploded views are not supplied.
•Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
•-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
•Accessories are given in the last of this parts list.
Ref. No. Part No. Description Remark
6-1. CABINET SECTION
R
Ref. No. Part No. Description Remark
R
1X-3383-698-1 HOLDER (SUB) ASSY, CASSETTE
23-007-012-01 SPRING (TORSION)
33-007-011-01 SPRING (CASSETTE)
*43-030-057-01 HOLDER, LCD
53-007-006-21 BUTTON (STOP)
63-007-004-22 BUTTON (FF)
73-030-054-01 BUTTON (PLAY)
83-007-005-21 BUTTON (REW)
9X-3383-701-1 CABINET (FRONT) SUB ASSY
10 3-015-285-01 SCREW (M1.4), TOOTHED LOCK (WH)
11 3-255-431-01 BUTTON (PRESET)
12 3-007-010-01 TERMINAL (–), BATTERY
13 3-030-055-01 TERMINAL (+), BATTERY
14 X-3383-700-1 CABINET (CENTER) ASSY
*15 A-3683-911-A MAIN BOARD, COMPLETE
16 3-007-762-01 STOPPER
17 3-030-056-01 RUBBER, CONDUCTIVE
L1 1-501-960-11 ANTENNA, FERRITE-ROD (AM)
LCD701 1-803-305-11 DISPLAY PANEL, LIQUID CRYSTAL
2
not
supplied
MF-WMFX171-114
1
3
14
5678
16
15
12 13
417
10
11
9
LCD701
L1

16
WM-FX271FP
6-2. TAPE MECHANISM SECTION-1
(MF-WMFX171-114)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
51 3-013-560-11 BELT
52 3-238-876-04 SCREW (M1.4), TOOTHED LOCK
53 X-3378-976-1 LEVER (NL) ASSY, PINCH
54 3-704-197-71 SCREW (M1.4X4.5), LOCKING
HP901 1-500-532-11 HEAD, MAGNETIC (PLAYBACK)
M901 1-763-073-13 MOTOR (including PULLEY)
54
53
52
51
M901
HP901

17
WM-FX271FP
6-3. TAPE MECHANISM SECTION-2
(MF-WMFX171-114)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
101 3-921-797-01 WASHER
102 X-3376-206-1 CHASSIS (COMP) ASSY (GL-02)
103 X-3372-619-3 WHEEL ASSY (NP), CAPSTAN
104 3-920-990-21 SPRING (UD), COMPRESSION
105 X-3376-169-5 CLUTCH ASSY
105
108
109
110
106
104 103
102
107
101
not supplied not supplied
not supplied
not supplied
106 3-921-335-03 WASHER, LEVER
107 3-921-042-01 GEAR (REEL)
108 3-938-613-05 LEVER (OW), DETECTION
109 3-728-091-01 WASHER, STOPPER
110 3-923-530-11 SLEEVE (M)

18
WM-FX271FP SECTION 7
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 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 ordering these items.
•SEMICONDUCTORS
In each case, u : µ, for example:
uA.. : µA.. uPA.. : µPA..
uPB.. : µPB.. uPC.. : µPC.. uPD.. : µPD..
•CAPACITORS
uF : µF
•COILS
uH : µH
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
When indicating parts by reference
number, please include the board.
*A-3683-911-A MAIN BOARD, COMPLETE
*********************
< CAPACITOR >
C2 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C3 1-162-995-11 CERAMIC CHIP 0.022uF 50V
C4 1-162-953-11 CERAMIC CHIP 100PF 5% 50V
C5 1-162-997-11 CERAMIC CHIP 10PF 0.5PF 50V
C6 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C7 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C8 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C9 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C10 1-164-118-11 CERAMIC CHIP 15PF 5% 50V
C12 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C13 1-165-128-11 CERAMIC CHIP 0.22uF 16V
C14 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V
C16 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C17 1-115-156-11 CERAMIC CHIP 1uF 10V
C18 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C19 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C20 1-162-974-11 CERAMIC CHIP 0.01uF 50V
C21 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C22 1-126-963-11 ELECT 4.7uF 20% 50V
C23 1-113-619-11 CERAMIC CHIP 0.47uF 10V
C24 1-113-619-11 CERAMIC CHIP 0.47uF 10V
C25 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V
C26 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V
C27 1-162-974-11 CERAMIC CHIP 0.01uF 50V
C28 1-124-434-00 ELECT 220uF 20% 4V
C29 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C31 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C34 1-164-437-11 CERAMIC CHIP 18PF 5% 50V
C35 1-162-961-11 CERAMIC CHIP 330PF 10% 50V
C36 1-115-156-11 CERAMIC CHIP 1uF 10V
C40 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C41 1-113-619-11 CERAMIC CHIP 0.47uF 10V
C42 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C101 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C103 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C104 1-126-153-11 ELECT 22uF 20% 6.3V
C105 1-115-156-11 CERAMIC CHIP 1uF 10V
C107 1-115-156-11 CERAMIC CHIP 1uF 10V
C108 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C109 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C201 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C203 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C204 1-126-153-11 ELECT 22uF 20% 6.3V
C205 1-115-156-11 CERAMIC CHIP 1uF 10V
C207 1-115-156-11 CERAMIC CHIP 1uF 10V
C208 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C209 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C301 1-126-246-11 ELECT CHIP 220uF 20% 4V
C302 1-117-579-11 DOUBLE LAYERS 0.1F 3.5V
C303 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C304 1-128-551-11 ELECT 22uF 20% 25V
C305 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C306 1-164-113-11 CERAMIC CHIP 20PF 5% 50V
C307 1-126-153-11 ELECT 22uF 20% 6.3V
C308 1-162-974-11 CERAMIC CHIP 0.01uF 50V
C309 1-115-156-11 CERAMIC CHIP 1uF 10V
C310 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C311 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C312 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C319 1-107-823-11 CERAMIC CHIP 0.47uF 10% 16V
C321 1-124-434-00 ELECT 220uF 20% 4V
C324 1-115-156-11 CERAMIC CHIP 1uF 10V
C325 1-104-847-11 TANTAL. CHIP 22uF 20% 4V
C326 1-164-505-11 CERAMIC CHIP 2.2uF 16V
C327 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C332 1-162-974-11 CERAMIC CHIP 0.01uF 50V
C333 1-126-162-11 ELECT 3.3uF 20% 50V
C334 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C335 1-163-077-00 CERAMIC CHIP 0.1uF 10% 25V
C336 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C337 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C338 1-162-974-11 CERAMIC CHIP 0.01uF 50V
C601 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C602 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C603 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C604 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C605 1-135-149-21 TANTALUM CHIP 2.2uF 20% 10V
C606 1-107-823-11 CERAMIC CHIP 0.47uF 10% 16V
C608 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V
C701 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C702 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C703 1-162-953-11 CERAMIC CHIP 100PF 5% 50V
C704 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C705 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C706 1-104-847-11 TANTAL. CHIP 22uF 20% 4V
MAIN

19
WM-FX271FP
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
MAIN
C707 1-162-920-11 CERAMIC CHIP 27PF 5% 50V
C708 1-162-917-11 CERAMIC CHIP 15PF 5% 50V
C709 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C710 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C711 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C712 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C714 1-162-974-11 CERAMIC CHIP 0.01uF 50V
C715 1-164-360-11 CERAMIC CHIP 0.1uF 16V
< FILTER >
CF1 1-760-345-21 FILTER, CERAMIC
< CONNECTOR >
CN301 1-766-819-11 CONNECTOR, FFC/EPC (ZIF) 6P
< BPF >
CP1 1-236-711-21 FILTER, BAND PASS
< TRIMMER >
CT1 1-141-422-11 CAP, ADJ 10PF
< DIODE >
D1 8-719-076-70 DIODE KV1520TL
D2 8-719-050-97 DIODE MA357(E)-(TX).SO
D3 8-719-050-97 DIODE MA357(E)-(TX).SO
D301 8-719-049-09 DIODE 1SS367-T3SONY
D302 8-719-801-78 DIODE 1SS184
D303 8-719-801-78 DIODE 1SS184
D701 8-719-820-05 DIODE 1SS184
< IC >
IC1 8-759-493-20 IC TA2111F-(EL)
IC301 8-759-692-00 IC LB8115W-NA/NB-TLM-E
IC701 8-759-574-71 IC uPD17072GB-559-1A7
IC702 8-759-469-63 IC S-81215SGUP-DQK
< JACK >
J301 1-778-515-21 JACK (HEADPHONE)
J302 1-750-061-11 JACK, DC (POLARITY UNIFIED TYPE)
(DC IN 3V)
< JUMPER RESISTOR >
JR2 1-216-864-11 METAL CHIP 0 5% 1/10W
JR14 1-216-793-11 METAL CHIP 4.7 5% 1/10W
JR301 1-216-296-11 SHORT CHIP 0
JR704 1-216-864-11 METAL CHIP 0 5% 1/10W
JR706 1-216-864-11 METAL CHIP 0 5% 1/10W
JR707 1-216-864-11 METAL CHIP 0 5% 1/10W
< COIL >
L2 1-416-528-11 COIL, AIR-CORE
L3 1-416-449-21 COIL, AIR-CORE
L4 1-416-423-11 COIL (WITH CORE) (AM OSC)
L101 1-414-760-21 INDUCTOR, FERRITE BEAD
L201 1-414-760-21 INDUCTOR, FERRITE BEAD
L301 1-414-235-22 INDUCTOR, FERRITE BEAD
L302 1-414-760-21 INDUCTOR, FERRITE BEAD
L304 1-414-760-21 INDUCTOR, FERRITE BEAD
L701 1-412-995-21 INDUCTOR 22uH
< TRANSISTOR >
Q2 8-729-102-27 TRANSISTOR 2SC2223-T1F12
Q101 8-729-424-67 TRANSISTOR UN2216
Q201 8-729-424-67 TRANSISTOR UN2216
Q301 8-729-216-22 TRANSISTOR 2SA1162G
Q302 8-729-900-52 TRANSISTOR DTC114YK
Q303 8-729-402-13 TRANSISTOR XN1501
Q304 8-729-141-48 TRANSISTOR 2SB624-BV345
Q305 8-729-402-13 TRANSISTOR XN1501
Q306 8-729-403-17 TRANSISTOR XN1215
Q307 8-729-422-27 TRANSISTOR 2SD601A-Q
Q308 8-729-900-52 TRANSISTOR DTC114YK
Q701 8-729-422-27 TRANSISTOR 2SD601A-Q
Q702 8-729-422-27 TRANSISTOR 2SD601A-Q
Q703 8-729-102-27 TRANSISTOR 2SC2223-T1F12
Q704 8-729-011-47 TRANSISTOR XN4311-TX
< RESISTOR >
R1 1-216-851-11 METAL CHIP 330K 5% 1/10W
R2 1-216-839-11 METAL CHIP 33K 5% 1/10W
R3 1-216-851-11 METAL CHIP 330K 5% 1/10W
R4 1-216-837-11 METAL CHIP 22K 5% 1/10W
R5 1-216-847-11 METAL CHIP 150K 5% 1/10W
R6 1-216-851-11 METAL CHIP 330K 5% 1/10W
R7 1-216-847-11 METAL CHIP 150K 5% 1/10W
R8 1-216-851-11 METAL CHIP 330K 5% 1/10W
R9 1-216-827-11 METAL CHIP 3.3K 5% 1/10W
R10 1-216-809-11 METAL CHIP 100 5% 1/10W
R11 1-216-833-11 METAL CHIP 10K 5% 1/10W
R12 1-216-797-11 METAL CHIP 10 5% 1/10W
R13 1-216-821-11 METAL CHIP 1K 5% 1/10W
R14 1-216-815-11 METAL CHIP 330 5% 1/10W
R15 1-216-841-11 METAL CHIP 47K 5% 1/10W
R16 1-216-841-11 METAL CHIP 47K 5% 1/10W
R17 1-216-797-11 METAL CHIP 10 5% 1/10W
R18 1-216-827-11 METAL CHIP 3.3K 5% 1/10W
R20 1-216-815-11 METAL CHIP 330 5% 1/10W
R21 1-216-864-11 METAL CHIP 0 5% 1/10W
R103 1-216-835-11 METAL CHIP 15K 5% 1/10W
R104 1-216-835-11 METAL CHIP 15K 5% 1/10W
R105 1-216-855-11 METAL CHIP 680K 5% 1/10W
R106 1-216-818-11 METAL CHIP 560 5% 1/10W
R107 1-216-795-11 METAL CHIP 6.8 5% 1/10W
R108 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R110 1-216-815-11 METAL CHIP 330 5% 1/10W
R111 1-216-821-11 METAL CHIP 1K 5% 1/10W
R112 1-216-821-11 METAL CHIP 1K 5% 1/10W
R203 1-216-835-11 METAL CHIP 15K 5% 1/10W
R204 1-216-835-11 METAL CHIP 15K 5% 1/10W
R205 1-216-855-11 METAL CHIP 680K 5% 1/10W
R206 1-216-818-11 METAL CHIP 560 5% 1/10W
R207 1-216-795-11 METAL CHIP 6.8 5% 1/10W
R208 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R210 1-216-815-11 METAL CHIP 330 5% 1/10W

20
WM-FX271FP
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
MAIN
R301 1-216-821-11 METAL CHIP 1K 5% 1/10W
R302 1-216-837-11 METAL CHIP 22K 5% 1/10W
R303 1-218-867-11 METAL CHIP 6.8K 5% 1/10W
R304 1-216-823-11 METAL CHIP 1.5K 5% 1/10W
R305 1-216-833-11 METAL CHIP 10K 5% 1/10W
R306 1-216-847-11 METAL CHIP 150K 5% 1/10W
R307 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R308 1-216-819-11 METAL CHIP 680 5% 1/10W
R309 1-216-845-11 METAL CHIP 100K 5% 1/10W
R310 1-216-864-11 METAL CHIP 0 5% 1/10W
R311 1-216-821-11 METAL CHIP 1K 5% 1/10W
R312 1-216-835-11 METAL CHIP 15K 5% 1/10W
R313 1-216-821-11 METAL CHIP 1K 5% 1/10W
R319 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R320 1-216-218-11 RES-CHIP 6.8K 5% 1/8W
R321 1-218-867-11 METAL CHIP 6.8K 5% 1/10W
R324 1-216-833-11 METAL CHIP 10K 5% 1/10W
R326 1-216-845-11 METAL CHIP 100K 5% 1/10W
R327 1-216-134-00 METAL CHIP 2.2 5% 1/8W
R328 1-216-833-11 METAL CHIP 10K 5% 1/10W
R329 1-216-864-11 METAL CHIP 0 5% 1/10W
R408 1-216-845-11 METAL CHIP 100K 5% 1/10W
R601 1-216-821-11 METAL CHIP 1K 5% 1/10W
R605 1-216-835-11 METAL CHIP 15K 5% 1/10W
R606 1-216-845-11 METAL CHIP 100K 5% 1/10W
R608 1-216-833-11 METAL CHIP 10K 5% 1/10W
R609 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R610 1-216-821-11 METAL CHIP 1K 5% 1/10W
R611 1-216-864-11 METAL CHIP 0 5% 1/10W
R701 1-216-837-11 METAL CHIP 22K 5% 1/10W
R702 1-216-839-11 METAL CHIP 33K 5% 1/10W
R703 1-216-812-11 METAL CHIP 180 5% 1/10W
R704 1-216-803-11 METAL CHIP 33 5% 1/10W
R705 1-216-833-11 METAL CHIP 10K 5% 1/10W
R706 1-216-833-11 METAL CHIP 10K 5% 1/10W
R707 1-216-833-11 METAL CHIP 10K 5% 1/10W
R708 1-216-833-11 METAL CHIP 10K 5% 1/10W
R709 1-216-833-11 METAL CHIP 10K 5% 1/10W
R710 1-216-833-11 METAL CHIP 10K 5% 1/10W
R711 1-216-833-11 METAL CHIP 10K 5% 1/10W
R712 1-216-833-11 METAL CHIP 10K 5% 1/10W
R715 1-216-841-11 METAL CHIP 47K 5% 1/10W
R719 1-216-833-11 METAL CHIP 10K 5% 1/10W
R720 1-218-879-11 METAL CHIP 22K 0.5% 1/10W
R721 1-218-915-11 METAL CHIP 680K 0.5% 1/10W
R723 1-216-845-11 METAL CHIP 100K 5% 1/10W
R725 1-216-845-11 METAL CHIP 100K 5% 1/10W
< VARIABLE RESISTOR >
RV301 1-227-449-21 RES, VAR, CARBON 10KX2 (VOLUME)
RV601 1-241-784-11 RES, ADJ, CARBON 5K
< SWITCH >
S301 1-762-742-61 SWITCH, DETECTION (SMALL TYPE)
(TAPE POWER)
S303 1-692-298-11 SWITCH, SLIDE (NORM•CrO2/METAL,DX/LOCAL)
S305 1-692-298-11 SWITCH, SLIDE (AVLS)
S716 1-572-922-11 SWITCH, SLIDE (HOLD)
< TRANSFORMER >
T1 1-406-694-11 COIL, AM IFT
T301 1-426-917-11 TRANSFORMER, DC-DC CONVERTER
< THERMISTOR (POSITIVE) >
TH601 1-810-794-11 THERMISTOR, POSITIVE
< VIBRATOR >
X2 1-781-137-11 FILTER ASSY, CERAMIC
X701 1-577-262-11 VIBRATOR, CRYSTAL (75kHz)
*************************************************************
MISCELLANEOUS
***************
HP901 1-500-532-11 HEAD, MAGNETIC (PLAYBACK)
L1 1-501-960-11 ANTENNA, FERRITE-ROD (AM)
LCD701 1-803-305-11 DISPLAY PANEL, LIQUID CRYSTAL
M901 1-763-073-13 MOTOR (including PULLEY)
*************************************************************
ACCESSORIES
************
3-257-403-11 MANUAL, INSTRUCTION (ENGLISH)
8-954-008-95 RECEIVER, EAR MDR-808LP