Sony WM-FX271

2
not
supplied
MF-WMFX171-114
1
3
14
5
6
7
8
16
15
12
13
4
17
10
11
9
LCD701
L1
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
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.
+
–
– 17 – – 18 –
• IC Block Diagrams
IC1 TA2111F
IC301 LB8115
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 and packing materials are
given in the last of this parts list.
• Abbreviation
CND : Canadian model
CEV : Poland, Czech, Greece and Turkey
model
CH : Chinese model
2AEP : Earphone (MDR-023) model
EE : East European model
FR : French model
C&SA : Central and South America model
9E : No indication of country of origin
E : Indication of country of origin
AEP : Headphone (MDR-E805LP) model
Ref. No. Part No. Description Remark
6-1. CABINET SECTION
N
N
Ref. No. Part No. Description Remark
1 X-3376-891-1 HOLDER (SUB) ASSY, CASSETTE
(FX271:US,CND,EE,E,C&SA,CH)
1 X-3376-893-1 HOLDER (SUB) ASSY, CASSETTE
(AEP,2AEP,FR,9E,CEV)
1 X-3377-162-1 HOLDER (SUB) ASSY, CASSETTE (FX275)
2 3-007-012-01 SPRING (TORSION)
3 3-007-011-01 SPRING (CASSETTE)
* 4 3-030-057-01 HOLDER, LCD
5 3-007-006-21 BUTTON (STOP)
6 3-007-004-21 BUTTON (FF)
7 3-030-054-01 BUTTON (PLAY)
8 3-007-005-21 BUTTON (REW)
9 X-3376-890-1 CABINET (FRONT) SUB ASSY (FX271)
9 X-3377-161-1 CABINET (FRONT) SUB ASSY (FX275)
10 3-015-285-01 SCREW (M1.4), TOOTHED LOCK (WH)
11 3-030-058-01 BUTTON (PRESET)
12 3-007-010-01 TERMINAL (-), BATTERY
13 3-030-055-01 TERMINAL (+), BATTERY
14 X-3376-892-1 CENTER SUB ASSY, CABINET (US,CND,C&SA)
14 X-3376-894-1 CENTER SUB ASSY, CABINET
(EXCEPT US,CND,C&SA)
15 A-3021-177-A MAIN BOARD, COMPLETE (FX271:US,CND)
15 A-3021-178-A MAIN BOARD, COMPLETE (AEP,CEV,CH)
15 A-3021-179-A MAIN BOARD, COMPLETE (2AEP)
15 A-3021-180-A MAIN BOARD, COMPLETE (EE)
15 A-3021-181-A MAIN BOARD, COMPLETE (E,9E)
15 A-3021-183-A MAIN BOARD, COMPLETE (FR)
15 A-3021-184-A MAIN BOARD, COMPLETE (C&SA)
15 A-3021-215-A MAIN BOARD, COMPLETE (FX275)
16 3-007-762-01 STOPPER
17 3-030-056-01 RUBBER, CONDUCTIVE
L1 1-501-961-11 ANTENNA, FERRITE-ROD (AM)
LCD701 1-803-305-11 DISPLAY PANEL, LIQUID CRYSTAL