Sony CX-LDB30 / CX-LDB50 / XR-DB30 / XR-DB50 Service Manual ▷ View online
38
38
CX-LDB30/LDB50
CX-LDB30/LDB50
7-14. PRINTED WIRING BOARD — PANEL BOARD —
•
See page 24 for Circuit Boards Location.
:Uses unleaded solder.
• Semiconductor
Location
Ref. No.
Location
D501
B-9
D502
D-2
D503
D-3
D504
D-1
D505
D-5
IC501
C-2
Q502
D-7
Q503
D-9
IC501
PANEL BOARD
CD EJECT BOARD
LCD BACK LIGHT
W 5 0 1
W550
W5 0 2
D 5 0 4
S 5 5 0
JW
51
7
J W 5 0 7
JW503
J W 5 0 6
JW
51
6
JW514
JW508
JW505
JW511
JW510
19P
CN502
JW501
JW509
JW512
JW
51
5
S501
JW513
JW502
S 5 0 4
S 5 1 5
L C D 5 0 1
S 5 0 9
S 5 1 6
JW504
D5
05
D 5 0 2
D 5 0 3
S 5 1 4
S 5 0 6
S 5 1 1
S 9 3 6
S 5 1 3
-
S 5 0 8
S 5 1 0
S 9 2 9
S 5 1 2
S 5 0 5
S 5 0 7
S503
S502
STANDBY
DISPLAY
I/1
VOLUME
x
TUNER
TUNING –
AUDIO IN
TAPE
CD
PLAY MODE/
TUNING MODE
i-Bass
z
REC/PAUSE/START
.
>
FOLDER –
FOLDER +
TUNING +
DSYNC
TREBLE
BASS
VOLUME
1-865-432-
(11)
11
A
E
E
R
LDB30
LDB50
517
R560
R504
C986
R518
R541
R534
R531
R507
C504
C502
C516
C517
C503
R552
R551
R550
R549
R548
R547
R546
R554
R553
Q502
R522
R524
R525
R519
JR501
R521
C512
R526
R528
R527
R505
D501
C908
R508
R501
R502
R516
R509
R510
R511
R512
R513
R539
R536
R529
R540
R535
R530
C515
R542
R537
C514
C513
R532
Q503
R558
R557
R556
R559
R555
C506
1-865-432-
(11)
11
1-865-720-
(11)
11
MAIN BOARD
CN904
(Page 31)
A
39
39
CX-LDB30/LDB50
CX-LDB30/LDB50
7-15. SCHEMATIC DIAGRAM — PANEL BOARD —
3.3
3.3
0.7
1.3
NO MARK: FM
A
MAIN BOARD
(5/5)
CN904
(Page 37)
1
2
3
4
5
8
9
10
11
S
CL
NC
CS
SI
O
1
2
3
4
5
6
7
NC
RS
VD
D
RE
S
E
T
B
NC
V0
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
1
2
1
2
S501
S502
S503
C5
0
2
C
503
C5
0
4
C512
C5
1
3
C
514
C
515
C5
1
6
C5
1
7
C9
8
6
CN502
D504
JR501
Q502
LDB50
VOLUME
Q503
R5
0
9
R5
1
0
R5
1
1
R5
1
2
R5
1
3
R516
R5
1
7
R518
R5
2
1
R522
2.4
R
529
R
530
R5
3
1
R5
3
2
R5
3
4
R5
3
5
R
536
R5
3
7
R
539
R5
4
0
R5
4
1
R
542
R546
R547
R548
R549
R550
R551
R552
R553
R554
R555
R556
R557
R558
R559
S504
S505
S506
S507
S508
S509
S510
S511
S512
S513
S514
S515
S516
S929
S936
S550
C5
0
6
C908
R5
1
9
W550
W502
R5
0
7
R508
D502
D503
D505
D501
R
525
R5
2
6
R5
6
0
R524
R501
R502
IC501
IC501
LCD501
R527
R528
R505
R5
0
4
0.
01
25V
B
0.
01
25
V
B
0.
01
2
5
V
0.1
16V
16V
B
0.
0
1
25V
0.
01
25V
0.
01
25V
0.
001
2
5
V
C
H
0.
0
0
1
2
5V
C
H
0.
0
1
25
V
B
19P
SLI-325URC
T31W
0
2SC3052F-T1-LF
2.
2
k
2.
2
k
2.
2
k
2.
2
k
2.
2
k
47k
47
1k
2.
2
k
1k
4.
7k
10
k
2.
2k
1k
4.
7
k
10k
2.
2
k
1k
4.
7
k
10k
1k
2.2k
2.2k
4.7k
10k
22k
47k
1k
2.2k
2.2k
4.7k
10k
22k
47k
11
0
V
1
10V
0
2P
1k
22k
SELU1910CXM-S
SELU1910CXM-S
UDZSTE-175.1B
47
0
10
k
47
47
NJL24H400A
LCD
10
10
220
470
VDD1
DISP_GND
DISP_GND
KGND
KGND
FR-VDD
FR-VDD
FR-VDD
+VM(7V)
E2
K1
RC
E2
E1
E0
L2
L3
L1
L2
K0
D5
L3
K1
K0
E0
E1
L1
D2
D1
D3
D4
D1
D
5
D2
D4
D3
RC
VOLUME
BASS
TREBLE
STANDBY
I/1
x
CD
TUNER
TAPE
TUNING –
TUNING +
i-Bass
LCD
RMC
VDD1
LED_STAND-BY
KEY0
KEY1
ENC1_BAS
ENC0_VOL
ENC2_TRE
LCD-SID
LCD-RSTB
LCD-SIC
LCD-RS
LCSB
KEY_GND
DISP_GND
LED_BKLIGHT
FR-VDD(3.3V)
LED_VOL
REMOTE CONTROL RECEIVER
LED DRIVE
LED DRIVE
LCD BACK LIGHT
DISPLAY
CD SYNC
AUDIO IN
z
REC/REC PAUSE/START
FOLDER –
FOLDER +
PLAY MODE/
TUNING MODE
KEY_GND
CD EJECT
KEY_GND
CD EJECT
A
+VM(7V)
100k
RT1N144C-
TP-1
1k
22
0
SELU6B14C-S-TP5
470
PANEL BOARD
CD EJECT BOARD
40
40
CX-LDB30/LDB50
CX-LDB30/LDB50
7-16. PRINTED WIRING BOARD — PT BOARD —
•
See page 24 for Circuit Boards Location.
:Uses unleaded solder.
PT BOARD
C003
R Y002
JW006
S
E51
001
C
00
2
JW
010
PT 003
JW
0
0
9
JW013
CN
002
D
006
D0
0
7
D0
0
5
P T0
AEP, RU
AEP, RU
E51,AUS,KR
E51,AUS,KR
E51,AUS,KR
E51,AUS,KR
E51,AUS,KR
E51,AUS,KR
04
C0
0
5
2P
CN
0
0
1
JW005
PT 001
D0
0
4
JW
008
JW
015
R Y001
JW
01
1
JW
028
JW
021
JW
0
2
4
JW027
JW025
JW
029
JW0
3
0
JW
026
JW016
JW
022
JW
023
JW
00
7
JW
0
1
9
JW018
AC IN
JW
02
0
JW014
JW017
E51,KR
AEP, RU
AEP, RU
AEP, RU
R007
R008
D0
0
1
C004
R0
0
3
R0
0
2
R004
R0
0
5
D002
VOLT SELECTOR
MAIN BOARD
CNA101
(Page 31)
E
JW
0
0
2
JW
0
0
1
JW
0
0
3
JW004
E51,AUS
1-865-433-
(11)
11
1-865-433-
(11)
11
• Semiconductor
Location
Ref. No.
Location
D001
D-7
D002
B-9
D004
B-1
D005
B-1
D006
B-1
D007
B-2
Ver. 1.2
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