Printed Wiring Boards -Main Section (2/2) - Sony XM-SD51X Manuel De Service

3-2. PRINTED WIRING BOARDS — MAIN SECTION (2/2) —
1 2 3
MAIN BOARD (SIDE B)
A
MC14
B
R144
R145
R146
C
SD61X
R147
R148
D
SD61X
E
F
G
H
L+R L+R
SPEAKER OUT
I
TER2
• Semiconductor Location (Side B)
Ref. No.
D2
D8
D12
D13
D14
D15
D16
D19
(
XM-SD51X/SD61X
4 5 6
Q26 Q30
E B C E B
Q25 Q29
EC32 EC34
E B C E B
Q24 Q28
E B C E B
EC33
EC35
Q23 Q27
E B C E B
Q22 Q31
EC38
E B C E B
EC40
Q18 Q21
R152
E C B E C
EC39 MC25
EC41
E C
EC58
LF2
EC59
ZD3
ZD4
EC51 EC52
-2 -2 -2
-1 -1 -1
ON OFF
VR2 SW1 VR3 VR1
LOW BOOST SUBSONIC LPF LEVEL
(40Hz) FILTER
Location Ref. No. Location Ref. No. Location
C-7 D20 B-2 FET7 E-12
E-6 FET8 F-12
H-6 FET1 B-12 (FET9) C-2
C-8 FET2 B-12 FET10 C-2
D-8 (FET3) C-12 FET11 D-2
F-7 FET4 C-12 (FET12) E-2
F-8 FET5 D-12 FET13 E-2
B-2 (FET6) E-12 FET14 F-2
): XM-SD61X only
7 8 9
R124
C
EC13
C
C
PTC2
C
D13
D14
C
MC26
B
PTC3
PTC1
Q19
1
B
Q33
IC6
16
E C B
D8
EC50
ZD1
ZD2
CNT2
1
EC1
3
1 8
IC1
16 9
-2 -4
D12
-1 -3
3 1
4 2
CNT3A
-4 -2
LEVEL -3 -1
L
R
CONTROL L L
-1
-3
CNT1
-4 -2
R R HIGH LEVEL INPUT
OUTPUT INPUT
(THROUGH)
JK1
Ref. No. Location Ref. No. Location
IC1 G-8 PTC1 D-7
IC6 E-9 PTC2 C-7
PTC3 D-7
LED3 E-13
LED4 D-14 Q1 F-6
LED5 D-14 Q2 F-6
LED6 E-14 Q3 F-5
LED7 E-14 Q4 F-5
11 11
10 11 12
PT1
EC22
MC15
EC23
EC24
R101 SD61X
EC25
T1
EC26
8
SD61X
9
EC27
ORG
BLK MC16
LF1
YEL
MC20
MC27
FUS1 FUS2 FUS3
30A 30A 30A
GND +12V REM
40A 40A
SD51X
TER1
Ref. No. Location Ref. No. Location Ref. No.
Q12 F-9 Q25 B-6 Q37
Q18 D-6 Q26 B-6 Q38
Q19 D-6 Q27 C-6
Q20 C-6 Q28 C-6 ZD1
Q21 D-6 Q29 B-6 ZD2
Q22 D-6 Q30 B-6 ZD3
Q23 C-6 Q31 D-6 ZD4
Q24 C-6 Q33 E-7 ZD5
XM-SD51X/SD61X
13 14 15
LED2 BOARD
(SIDE B)
LED4
CN2
YEL
3
BLK
ORG
1
LED5
LED3
(ILLUMINATION)
PROTECTER
LED6
LED7
11
1-864-781-
(11)
11
(11)
1-864-779-
SD61X
Location
F-9
E-9
F-7
F-7
F-5
F-5
C-6