DOWNLOAD Sony XR-4890 Service Manual ↓ Size: 2.44 MB | Pages: 34 in PDF or view online for FREE

Model
XR-4890
Pages
34
Size
2.44 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
xr-4890.pdf
Date

Sony XR-4890 Service Manual ▷ View online

– 31 –
SECTION  7
EXPLODED VIEWS
(1) CHASSIS SECTION
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.
• Color Indication of Appearance Parts Example:
KNOB, BALANCE (WHITE) . . . . (RED)
Â
Â
Parts color Cabinets color
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and pack-
ing materials are given in the last of this parts list.
The components identified by
mark 
! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 10
3-018-390-01 BRACKET (IC)
* 11
3-031-026-11 HEAT SINK
12
3-935-014-01 CUSHION (U)
* 13
3-009-813-41 CHASSIS
14
3-012-859-01 CAP (25), RUBBER
15
3-937-650-01 PLATE (C), GROUND
F781
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE)(10A)
1
3-030-828-01 PANEL, SUB
2
3-935-003-01 SPRING, TORSION
3
3-027-437-41 DOOR, CASSETTE
4
X-3370-437-1 LOCK ASSY
* 5
3-033-846-01 INSULATED PLATE
* 6
A-3317-391-A MAIN BOARD, COMPLETE
7
3-915-923-01 SCREW, GROUND POINT
* 8
X-3373-270-1 COVER ASSY
9
1-776-527-81 CORD (WITH CONNECTOR)(ISO)(POWER)
14
8
7
6
5
4
3
2
1
13
12
11
10
9
15
#3
#2
#2
#2
#2
#2
#2
#1
Front panel ass’y
#4
F781
MG-25F-136
– 32 –
(2) FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 61
3-030-839-01 SHEET (REFLECTOR)
* 62
3-030-824-01 PLATE, LIGHT GUIDE
63
1-694-508-11 CONDUCTIVE BOARD, CONNECTION
* 64
3-030-825-01 HOLDER (LCD)
65
3-030-827-01 PANEL, FRONT BACK
66
X-3377-055-1 FRONT PANEL ASSY
* 67
3-030-840-01 PLATE (B), GROUND
LCD901 1-803-497-11 DISPLAY PANEL, LIQUID CRYSTAL
51
3-030-838-01 BUTTON (RELEASE)
52
3-030-832-01 LEVER (S/A)
53
3-932-475-01 SPRING (RELEASE)
54
3-030-834-01 BUTTON (M/S)
55
3-030-835-01 BUTTON (1-6)
56
3-031-027-11 BUTTON (P/P/A)
57
3-030-831-01 BUTTON (SOURCE)
58
3-030-830-01 KNOB (VOL)
60
3-030-837-01 BUTTON (D-BASS)
57
58
60
65
54
66
53
51
52
56
#5
#5
#5
C
B
C
B
A
A
67
55
not supplied
(KEY board)
64
62
61
67
63
LCD901
– 33 –
(3) MECHANISM DECK SECTION (MG-25F-136)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
161
3-933-346-01 CATCHER
162
3-933-344-01 GUIDE (C)
163
3-014-798-01 SCREW (HEAD), SPECIAL
164
3-364-151-01 WASHER
165
A-3301-267-A CHASSIS ASSY (G)
166
3-017-302-01 BELT (25)
167
3-936-853-01 FLYWHEEL (F)
168
3-701-437-21 WASHER
HP901
1-500-157-21 HEAD, MAGNETIC (PLAYBACK)
M901
A-3291-665-A MOTOR ASSY, MAIN (CAPSTAN/REEL)
151
A-3291-667-A CLUTCH (FR) ASSY
152
3-019-130-01 LEVER (LDG-A)
153
3-019-131-01 LEVER (LDG-B)
154
3-020-539-01 SPRING (LD-1), TENSION
155
3-020-540-01 SPRING (LD-2), TENSION
156
3-020-542-01 GEAR (LOADING FT)
157
3-341-753-11 WASHER, POLYETHYLENE
158
3-020-533-01 HOUSING
159
3-020-532-01 ARM (SUCTION)
160
3-020-534-01 HANGER
160
161
162
164
165
166
167
151
168
168
159
158
155
156
157
154
153
152
163
HP901
M901
#7
#6
A
A
– 34 –
SECTION  8
ELECTRICAL PARTS LIST
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
KEY
• SEMICONDUCTORS
In each case, u: µ , for example:
uA...: µ A..., uPA...: µ PA..., uPB...: µ PB...,
uPC...: µ PC..., uPD...: µ PD...
• CAPACITORS
uF : µ F
• COILS
uH : µ H
• Abbreviation
• 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.
• RESISTORS
All resistors are in ohms
METAL: Metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F : nonflammable
Note:
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.
KEY BOARD, COMPLETE
*******************
1-694-508-11 CONDUCTIVE BOARD, CONNECTION
*
3-030-824-01 PLATE, LIGHT GUIDE
*
3-030-825-01 HOLDER (LCD)
*
3-030-839-01 SHEET (REFLECTOR)
*
3-030-840-01 PLATE (B), GROUND
< CAPACITOR >
C952
1-163-033-00 CERAMIC CHIP
0.022uF
50V
C953
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C954
1-165-319-11 CERAMIC CHIP
0.1uF
50V
C955
1-165-319-11 CERAMIC CHIP
0.1uF
50V
C956
1-164-222-11 CERAMIC CHIP
0.22uF
25V
< CONNECTOR >
CNP901 1-785-775-11 PIN, CONNECTOR 15P
< DIODE >
D902
8-719-105-99 DIODE   RD6.2M-B1
D903
8-719-105-99 DIODE   RD6.2M-B1
D904
8-719-105-99 DIODE   RD6.2M-B1
D951
8-719-976-99 DIODE   DTZ5.1B
< IC >
IC901
8-759-366-34 IC   LC75824E
< LIQUID CRYSTAL DISPLAY >
LCD901 1-803-497-11 DISPLAY PANEL, LIQUID CRYSTAL
< SWITCH >
LSW901 1-771-610-11 SWITCH, TACTILE (WITH LED)(OFF)
LSW902 1-762-620-21 SWITCH, KEY BOARD (WITH LED)(SOURCE)
LSW903 1-762-620-21 SWITCH, KEY BOARD (WITH LED)(MODE *)
LSW905 1-762-620-21 SWITCH, KEY BOARD (WITH LED)(SOUND)
LSW906 1-771-610-11 SWITCH, KEY BOARD (WITH LED)(SHIFT)
LSW921 1-762-620-21 SWITCH, KEY BOARD (WITH LED)(EJECT 6)
LSW922 1-762-620-21 SWITCH, KEY BOARD (WITH LED)
(PRESET/DISC -)
LSW923 1-762-620-21 SWITCH, KEY BOARD (WITH LED)
(PRESET/DISC +)
LSW927 1-762-620-21 SWITCH, KEY BOARD (WITH LED)(DSPL)
LSW928 1-771-610-11 SWITCH, TACTILE (WITH LED)(6)
LSW929 1-771-610-11 SWITCH, TACTILE (WITH LED)(5/ENTER)
LSW930 1-771-610-11 SWITCH, TACTILE (WITH LED)(4/n)
LSW931 1-771-610-11 SWITCH, TACTILE (WITH LED)(3/PLAY MODE)
LSW932 1-771-610-11 SWITCH, TACTILE (WITH LED)(2/SET UP)
LSW933 1-771-610-11 SWITCH, TACTILE (WITH LED)(1/N)
< PILOT LAMP >
PL901
1-517-633-21 LAMP, PILOT
PL902
1-517-633-21 LAMP, PILOT
< TRANSISTOR >
Q941
8-729-106-60 TRANSISTOR   2SB1115A
Q942
8-729-900-53 TRANSISTOR   DTC114EK
Q943
8-729-106-60 TRANSISTOR   2SB1115A
Q944
8-729-900-53 TRANSISTOR   DTC114EK
Q945
8-729-900-53 TRANSISTOR   DTC114EK
< RESISTOR >
R901
1-216-647-11 METAL CHIP
680
0.5%
1/10W
R902
1-216-647-11 METAL CHIP
680
0.5%
1/10W
R903
1-216-647-11 METAL CHIP
680
0.5%
1/10W
R904
1-216-651-11 METAL CHIP
1K
0.5%
1/10W
R905
1-216-655-11 METAL CHIP
1.5K
0.5%
1/10W
R906
1-216-655-11 METAL CHIP
1.5K
0.5%
1/10W
R907
1-216-659-11 METAL CHIP
2.2K
0.5%
1/10W
R916
1-216-037-00 METAL CHIP
330
5%
1/10W
R917
1-216-033-00 METAL CHIP
220
5%
1/10W
R921
1-216-647-11 METAL CHIP
680
0.5%
1/10W
R922
1-216-647-11 METAL CHIP
680
0.5%
1/10W
R923
1-216-647-11 METAL CHIP
680
0.5%
1/10W
R924
1-216-651-11 METAL CHIP
1K
0.5%
1/10W
R925
1-216-655-11 METAL CHIP
1.5K
0.5%
1/10W
R926
1-216-655-11 METAL CHIP
1.5K
0.5%
1/10W
R927
1-216-659-11 METAL CHIP
2.2K
0.5%
1/10W
R928
1-216-663-11 METAL CHIP
3.3K
0.5%
1/10W
R929
1-216-667-11 METAL CHIP
4.7K
0.5%
1/10W
R930
1-216-671-11 METAL CHIP
6.8K
0.5%
1/10W
R931
1-208-806-11 RES,CHIP
10K
2%
1/10W
R932
1-208-810-11 RES,CHIP
15K
2%
1/10W
R941
1-216-073-00 METAL CHIP
10K
5%
1/10W
R942
1-216-065-00 RES,CHIP
4.7K
5%
1/10W
R943
1-216-073-00 METAL CHIP
10K
5%
1/10W
R944
1-216-065-91 RES,CHIP
4.7K
5%
1/10W
R951
1-216-041-00 METAL CHIP
470
5%
1/10W
R953
1-216-121-00 RES,CHIP
1M
5%
1/10W
R954
1-216-049-11 RES,CHIP
1K
5%
1/10W
R955
1-216-049-11 RES,CHIP
1K
5%
1/10W
R956
1-216-049-11 RES,CHIP
1K
5%
1/10W
R957
1-216-109-00 METAL CHIP
330K
5%
1/10W
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