Sony XR-4790 / XR-4800 / XR-7850 (serv.man2) Service Manual ▷ View online
– 42 –
(3) FRONT PANEL SECTION
(XR-4800)
(XR-4800)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
101
3-018-799-01 BUTTON (D-BASS)
102
3-015-036-01 CUSHION (BACK PANEL)
103
3-016-924-01 BUTTON (L) (2) (+. –)
104
3-009-304-01 BUTTON (RELEASE)
105
3-932-475-01 SPRING (RELEASE)
* 106
3-019-149-01 PLATE, LCD
107
X-3374-684-1 PANEL SUB ASSY
108
3-009-300-01 BUTTON (SOURCE)
109
3-018-797-11 BUTTON (L) (3)
(+
+ ). SEEK AMS.=0–. r. OFF. SEL. ATT)
110
3-014-602-11 SPACER (A)
111
3-016-927-01 BUTTON (1-3) (
6. 1. 2. 3)
112
3-016-928-11 BUTTON (4-6) (4. 5. 6)
113
3-016-930-01 BUTTON (R) (3) (BTM. LCL.
r)
* 114
3-019-151-01 PLATE (LCD), GROUND
* 115
3-019-150-01 SHEET (REFLECTOR)
* 116
3-018-612-01 PLATE, LIGHT GUIDE
* 117
3-018-611-01 HOLDER (LCD)
118
3-010-519-01 PANEL, FRONT BACK
LCD901 1-801-966-11 DISPLAY PANEL, LIQUID CRYSTAL
103
107
108
109
105
104
110
101
113
110
114
112
111
115
117
116
106
118
LCD901
not supplied
(KEY board)
(KEY board)
102
#5
#5
– 43 –
(4) MECHANISM DECK SECTION
(MG-25G-136)
(MG-25G-136)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
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
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
1-500-196-21 HEAD, MAGNETIC (PLAYBACK)
M901
A-3291-665-A MOTOR ASSY, MAIN (CAPSTAN/REEL)
160
159
158
155
154
153
152
156
157
163
161
162
164
165
166
167
151
168
168
HP901
M901
#7
#6
A
A
– 44 –
SECTION 8
ELECTRICAL PARTS LIST
Ref. No.
Part No.
Description
Remark
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.
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.
one.
• RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
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.
Some delay should be anticipated when order-
ing these items.
• SEMICONDUCTORS
In each case, u: µ, for example:
uA. .
uA. .
: µA. .
uPA. . : µPA. .
uPB. .
: µPB. .
uPC. . : µPC. .
uPD. .
: µPD. .
• CAPACITORS
uF: µF
• COILS
uH: µH
Ref. No.
Part No.
Description
Remark
CONNECTOR KEY
When indicating parts by reference
number, please include the board.
number, please include the board.
*
A-3309-913-A CONNECTOR BOARD, COMPLETE
***************************
(Included in MAIN BOARD, COMPLETE)
< CONNECTOR >
CN801
1-778-984-11 PIN, CONNECTOR (PC BOARD) 20P
CN802
1-778-985-11 PIN, CONNECTOR (ISO)
< DIODE >
D801
8-719-049-38 DIODE 1N5404TU
< COIL >
L801
1-416-046-11 COIL, CHOKE 400uH
< RESISTOR >
R801
1-249-417-11 CARBON
1K
5%
1/4W
R802
1-249-417-11 CARBON
1K
5%
1/4W
R803
1-249-429-11 CARBON
10K
5%
1/4W
< SWITCH >
S801
1-571-478-11 SWITCH, SLIDE (POWER SELECT)
************************************************************
KEY BOARD
**********
**********
*
3-010-375-01 SHEET (REFLECTOR) (XR-4790)
*
3-014-857-01 SHEET (LCD) (T) (XR-4790)
*
3-018-385-01 PLATE (LCD), LIGHT GUIDE (XR-4790)
*
3-018-386-01 HOLDER (LCD) (XR-4790)
*
3-018-611-01 HOLDER (LCD) (XR-4800)
*
3-018-612-01 PLATE, LIGHT GUIDE (XR-4800)
*
3-019-149-01 PLATE, LCD (XR-4800)
*
3-019-150-01 SHEET (REFLECTOR) (XR-4800)
*
3-019-151-01 PLATE (LCD), GROUND (XR-4800)
< CAPACITOR >
C901
1-163-033-00 CERAMIC CHIP
0.022uF
50V
C902
1-165-319-11 CERAMIC CHIP
0.1uF
50V
C903
1-165-319-11 CERAMIC CHIP
0.1uF
50V
C904
1-163-137-00 CERAMIC CHIP
680PF
5%
50V
< CONNECTOR >
CNP901 1-764-423-11 PIN, CONNECTOR 12P
< DIODE >
D901
8-719-420-90 DIODE MA8051-M
D902
8-719-422-64 DIODE MA8062-M
D903
8-719-422-64 DIODE MA8062-M
D904
8-719-422-64 DIODE MA8062-M
D905
8-719-422-64 DIODE MA8062-M
< IC >
IC901
8-759-443-68 IC LC75834JED
< SHORT >
JC901
1-216-295-11 SHORT (CHIP) 0 (XR-4790)
JC902
1-216-295-11 SHORT (CHIP) 0
JC951
1-216-296-00 SHORT (CHIP) 0
JC952
1-216-296-00 SHORT (CHIP) 0
< LIQUID CRYSTAL DISPLAY >
LCD901 1-801-966-11 DISPLAY PANEL, LIQUID CRYSTAL
< SWITCH >
LSW901 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (OFF)
(AMBER)
LSW901 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (OFF)
(GREEN)
LSW902 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (SOURCE)
(AMBER)
LSW902 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (SOURCE)
(GREEN)
LSW903 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(MODE/
*) (AMBER)
LSW903 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(MODE/
*) (GREEN)
LSW904 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(+
) +) (AMBER)
LSW904 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(+
) +) (GREEN)
LSW905 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
( –
= 0) (AMBER)
LSW905 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
( –
= 0) (GREEN)
– 45 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
LSW906 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (–)
(AMBER)
LSW906 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (–)
(GREEN)
LSW907 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (SEL)
(AMBER)
LSW907 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (SEL)
(GREEN)
LSW908 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (+)
(AMBER)
LSW908 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (+)
(GREEN)
LSW909 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (ATT)
(AMBER)
LSW909 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (ATT)
(GREEN)
LSW910 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (DSPL)
(XR-4790: AMBER)
LSW910 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (DSPL)
(XR-4790: GREEN)
LSW911 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (BTM)
(AMBER)
LSW911 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (BTM)
(GREEN)
LSW912 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (LCL)
(AMBER)
LSW912 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (LCL)
(GREEN)
LSW921 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (
6)
(AMBER)
LSW921 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (
6)
(GREEN)
LSW922 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(1) (XR-4790: AMBER)
LSW922 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(INTRO/1) (XR-4800: AMBER)
LSW922 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(1) (XR-4790: GREEN)
LSW922 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(INTRO/1) (XR-4800: GREEN)
LSW923 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(2) (XR-4790: AMBER)
LSW923 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(REPEAT/2) (XR-4800: AMBER)
LSW923 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(2) (XR-4790: GREEN)
LSW923 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(REPEAT/2) (XR-4800: GREEN)
LSW924 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (3)
(AMBER)
LSW924 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (3)
(GREEN)
LSW925 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(6) (XR-4790: AMBER)
LSW925 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(BL SKIP/6) (XR-4800: AMBER)
LSW925 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(6) (XR-4790: GREEN)
LSW925 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(BL SKIP/6) (XR-4800: GREEN)
LSW926 1-762-617-11 SWITCH, KEY BOARD (WITH LED) (ATA/5)
(AMBER)
LSW926 1-762-619-11 SWITCH, KEY BOARD (WITH LED) (ATA/5)
(GREEN)
LSW927 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(4) (XR-4790: AMBER)
LSW927 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(MTL/4) (XR-4800: AMBER)
LSW927 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(4) (XR-4790: GREEN)
LSW927 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(MTL/4) (XR-4800: GREEN)
LSW929 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(PRST +) (XR-4790: AMBER)
LSW929 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(PRST +) (XR-4790: GREEN)
LSW930 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(– PRST) (XR-4790: AMBER)
LSW930 1-762-617-11 SWITCH, KEY BOARD (WITH LED)
(DSPL) (XR-4800: AMBER)
LSW930 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(– PRST) (XR-4790: GREEN)
LSW930 1-762-619-11 SWITCH, KEY BOARD (WITH LED)
(DSPL) (XR-4800: GREEN)
< PILOT LAMP >
PL901
1-517-633-21 LAMP, PILOT (LCD BACK LIGHT)
PL902
1-517-633-21 LAMP, PILOT (LCD BACK LIGHT)
< 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
R908
1-216-663-11 METAL CHIP
3.3K
0.5%
1/10W
R909
1-216-667-11 METAL CHIP
4.7K
0.5%
1/10W
(XR-4790)
R910
1-216-671-11 METAL CHIP
6.8K
0.5%
1/10W
(XR-4790)
R911
1-208-806-11 RES, CHIP
10K
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
(XR-4790)
R928
1-216-663-11 METAL CHIP
3.3K
0.5%
1/10W
(XR-4790)
R929
1-216-667-11 METAL CHIP
4.7K
0.5%
1/10W
(XR-4790)
R941
1-216-667-11 METAL CHIP
4.7K
0.5%
1/10W
(XR-4800)
R942
1-216-671-11 METAL CHIP
6.8K
0.5%
1/10W
(XR-4800)
R951
1-216-190-00 RES, CHIP
470 (3216)
R952
1-216-089-00 RES, CHIP
47K (2012)
R953
1-216-049-11 RES, CHIP
1K (2012)
KEY
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