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Sony Walkman WM-FX491 Service Manual

Sony Walkman WM-FX491
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– 22 – – 24 –– 23 –
z
IC Block Diagram.
IC1 TA2104AFN (EL)
21222324
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
181920
FM
OSC
AM
OSC
BUFF
IF
BUFF
AF
BUFF
BUFF
AM
MIX
FM
MIX
FM
RF
ST
LEVEL
DET
1/8
AMIF
FMIF
AGC
SW
IF
RED
AM
DET
FM
DET
AF
ST/MO
FM/AM
MUTE
VCO
DIVIDE
DECOOE
FM RF OUT
RF VCC
AM RF IN
FM OSC
AM OSC
OSC OUT
ST-LED
IF REQ
DET OUT
MPX-IN
LPF1/MO-ST
LPF2/BAND
RF GND
FM RF IN
AM LOW CUT
MIX OUT
VCC
AM IF IN
FM IF IN
GND
AGC
QUAD
R-OUT
L-OUT
SECTION 5
EXPLODED VIEWS
NOTE :
-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.
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.
Abbreviation
CND : Canadian
FR : French
EA : Saudi Arabia
CH : Chinese
E : Indication of country of origin
9E : No Indication of country of origin
5E, 6E : South America
CEV : Ukraine, Hungary, Czech
5-1. CABINET SECTION
5-2. MECHANISM DECK SECTION
(MT-WMEX404-147)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
1 3-039-652-01 LID,BATTERY CASE (FX491,FX491ST)
1 3-039-652-11 LID,BATTERY CASE (FX493,FX493ST)
2 3-039-658-01 RUBBER (B), BUTTON
3 X-3378-293-1 CABINET (FRONT) SUB ASSY(FX491,FX491ST)
3 X-3378-294-1 CABINET (FRONT) SUB ASSY(FX493,FX493ST)
4 3-039-657-01 RUBBER (A), BUTTON
5 3-704-197-11 LOCK,SERRAT IB
* 6 3-039-660-01 HOLDER (LCD)
7 3-040-176-01 RUBBER, CONDUCTIVE
8 3-022-857-01 SPRING (OPEN)
9 3-022-856-01 SPRING (KNOB), TENSION
10 3-704-197-91 SCREW (M1.4X1.8), LOCKING
11 3-019-421-01 LEVER, OPEN
12 3-019-422-01 JOINT
13 3-349-825-31 SCREW
14 3-318-382-61 SCREW (1.7X2.5), TAPPING
15 3-039-661-01 LOCKER (OPEN)
16 3-025-276-01 SPRING (LID UP)
17 X-3378-289-1 HOLDER SUB ASSY, CASSETTE
(FX491:CND,5E,6E,FX491ST)
17 X-3378-290-1 HOLDER SUB ASSY, CASSETTE
(FX491:AEP,CEV,FR,E,9E,CH)
17 X-3378-291-1 HOLDER SUB ASSY, CASSETTE
(FX493:US,5E,6E,FX493ST)
17 X-3378-292-1 HOLDER SUB ASSY, CASSETTE
(FX493:AEP,CEV,FR,9E,EA,CH)
18 3-019-514-21 KNOB(OPEN)
19 3-039-651-01 CENTER CABINET (US,CND,5E,6E)
19 3-039-651-11 CENTER CABINET (E,EA,CH)
19 3-039-651-21 CENTER CABINET (AEP,CEV,FR)
19 3-039-651-31 CENTER CABINET (9E)
20 3-318-203-51 SCREW (B1.7X12), TAPPING
21 3-040-144-01 SPRING (CASSETTE)
23 3-020-511-01 TERMINAL (+), BATTERY
24 A-3021-309-A MAIN BOARD, COMPLETE (US,CND)
24 A-3021-310-A MAIN BOARD, COMPLETE (AEP,CEV)
24 A-3021-311-A MAIN BOARD, COMPLETE (E,9E,EA,CH)
24 A-3021-312-A MAIN BOARD, COMPLETE (5E,6E)
24 A-3021-313-A MAIN BOARD, COMPLETE (FR)
25 3-020-512-01 TERMINAL (-), BATTERY
L2 1-501-987-21 AM FERRITE-ROD ANTENNA (AM TRACKING)
ND701 1-803-764-11 DISPLAY PANEL, LIQUID CRYSTAL
ND701
MT-WMEX404-147
L2
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Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
51 X-3375-020-1 PINCH LEVER (N-F) ASSY
52 X-3372-619-1 WHEEL ASSY (SP), CAPSTAN
53 3-354-868-01 BELT
54 3-021-950-01 GEAR (DF)
55 3-021-982-01 SPRING (MODE), COMPRESSION
56 X-3375-024-1 CLUTCH ASSY (F)
57 3-021-951-01 GEAR (CAM)
58 3-348-953-21 WASHER
59 3-021-979-01 SPRING (UDF), COMPRESSION
60 3-021-949-01 GEAR (BF)
61 X-3375-022-1 CHASSIS ASSY (F)
62 3-021-974-03 SPRING (HEAD BASE)
63 3-703-816-31 SCREW (M1.4), SPECIAL HEAD
64 X-3375-021-1 PINCH LEVER (R-F) ASSY
65 3-703-816-73 SCREW (M1.4), SPECIAL HEAD
66 3-921-797-01 WASHER
67 3-921-003-01 BEARING
68 3-022-100-01 SPRING (B.T.), COMPRESSION
69 3-024-223-01 GEAR (REEL-2)
70 X-3375-268-1 GEAR (AF-SV) ASSY
71 3-034-685-01 WASHER (1.03-3.0)
HP901 1-500-555-11 HEAD, MAGNETIC (PLAYBACK)
M901 1-763-073-11 MOTOR, DC (CAPSTAN/REEL)
(INCLUDING PULLEY)

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Sony Walkman WM-FX491 Specifications

General IconGeneral
BrandSony
ModelWalkman WM-FX491
CategoryCassette Player
LanguageEnglish

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