DOWNLOAD Sony XR-4950X / XR-4954X Service Manual ↓ Size: 3.43 MB | Pages: 40 in PDF or view online for FREE

Model
XR-4950X XR-4954X
Pages
40
Size
3.43 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
xr-4950x-xr-4954x.pdf
Date
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Sony XR-4950X / XR-4954X Service Manual ▷ View online

XR-4950X/4954X
21
21
7-2.
PRINTED  WIRING  BOARD  – MAIN BOARD –
CN301
R500
(4954X)
(4950X)
D734
D721
D732
D733
D724
D722
D731
D723
C44
L
R
AUDIO
OUT
(REAR)
J1
(FM/AM ANTENNA)
TU1
A
SUB BOARD
WR801
(Page 24 )
S552
(NOSE SW)
S551
(RESET)
1-676-600-
11
1
5
10
13
RED
BLK
WHT
BLK
WHT
WHT
WHT
WHT
WHT
WHT
WHT
RED
MECHANISM
BLOCK
M
M901
CAPSTAN
REEL MOTOR
J561
REMOTE IN
F781
IC751
1
15
25
2
10
20
L781
LIGHT BLUE
(L)
1
2
7
3
5
6
4
(R)
FWD
(L)
(R)
REV
HP901
(PLAYBACK)
(4950X)
S501
(FREQUENCY 
SELECT)
9 kHz
10 kHz
YEL
BLK
• Semiconductor
Location
D1
D-8
D31
F-4
D51
D-12
D351
H-11
D352
G-12
D501
I-7
D551
F-11
D552
F-11
D553
I-9
D554
F-11
D571
D-8
D572
D-8
D581
E-11
D588
E-8
D591
E-10
D601
I-12
D610
D-9
D611
D-9
D613
C-9
D614
D-9
D621
D-5
D622
D-6
D624
D-7
D701
J-4
D702
J-4
D703
J-5
D704
J-5
D705
I-3
D706
J-5
D707
I-3
D708
I-2
D709
I-3
D721
C-8
D722
C-7
D723
B-6
D724
C-8
D731
C-7
D732
C-8
D733
C-8
D734
C-8
D781
C-11
IC301
H-4
IC331
D-4
IC351
H-12
IC501
G-7
IC551
J-10
IC611
E-12
IC751
B-7
Q11
E-2
Q21
E-2
Q31
F-6
Q171
C-4
Q181
C-4
Q271
C-5
Q281
C-5
Q351
G-11
Q352
H-11
Q353
G-11
Q354
G-11
Q551
H-10
Q571
D-7
Q581
E-10
Q583
E-8
Q591
E-10
Q592
E-10
Q601
I-12
Q602
I-12
Q621
D-6
Q622
E-7
Q631
J-5
Ref. No.
Location
XR-4950X/4954X
22
22
7-3.
SCHEMATIC  DIAGRAM  – MAIN BOARD (1/2)  – •
 See page 20 for Waveforms.
•
 See page 21 for Printed Wiring Board.
•
 See page 26 for IC Block Diagrams.
S501
(FREQUENCY 
            SELECT)
(NOSE SW)
•
 See page 27 for IC Pin Function.
XR-4950X/4954X
23
23
7-4.
SCHEMATIC  DIAGRAM  – MAIN BOARD (2/2)  –
•
 See page 21 for Printed Wiring Board.
•
 See page 26 for IC Block Diagrams.
(RESET)
XR-4950X/4954X
24
24
7-5.
PRINTED  WIRING  BOARDS  – KEY/SUB BOARDS –
–
.
m
MENU
SOURCE
ENTER
REP
1
SHUE
2
3
4
5
D-BASS
6
MODE
o
SOUND
OFF
PRST–
DISC–
+
>
M
LCD901
52
1
DISC+
PRST+
1-676-602-
1-676-602-
11
11
1
SUB BOARD
CNP801
14 13 12 11 10 9 8
1 2 3 4 5 6 7
A SIDE
A
g
1-676-603-
11
WR801
14
1
A
MAIN BOARD
CN701
(Page 21)
1-676-603-
11
1
KEY BOARD
CN901
1 2 3 4 5 6 7
8 9 10 11 12 13 14
A SIDE
• Semiconductor
Location
D901
C-11
D902
B-10
D903
B-10
D904
B-10
D952
B-6
IC901
B-8
Ref. No.
Location
Page of 40
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