Printed Wiring Boards -Main Section (2/2) - Sony XM-D400P5 Instructions De Service

3-3. PRINTED WIRING BOARDS — MAIN SECTION (2/2) — • Refer to page 9 for Common Note on Printed Wiring Boards.
1 2 3
A
B
C
E B C
Q26
E B C
E B C
Q24
D
Q25
E B C
Q22
E B C
Q32
E B C
Q33
E C B
E D8
VR1 -2
-1
LEVEL
VR2
-1 -2
LOW
BOOST
(40Hz)
F
-1 -2
VR3
EC1
LPF
EC54
EC55
OUTPUT
(THROUGH)
G
EC2
JK1
EC56
INPUT
-4 -2
R L
H -3 -1
CNT1
HIGH LEVEL INPUT
E B C
Q1
I
J
4 5 6
MAIN BOARD (SIDE B)
R175
R176
R177
R168
R144
Q28
E B C
Q27
Q30
E B C
Q23
E B C
Q31
E B C
E B C
Q29
MC11
Q20 Q18
Q21 E B C E C B
E C B
D2
Q19
E C B
3 4
2 1
PTC2
MC21
D16
D15
C17
CNT2 1
2
1
PTC1
Q4 Q3
E B C
E B C MC22
E B C
Q2
C23
C46
MC24
MC23
GND
(L+R) (L+R)
SPEAKER OUT
TER1
7 8 9
MC14
T1
Q38
E C B
MC12
Q37
EC27
E C B
1 8
IC6
16 9
EC26
Q12
E C B
MC26
EC25
PT1
EC24
EC23
R101
EC22
MC18
MC15
3
MC20
3
4
MC27
+12V REM FUSE1 FUSE2
30A 30A
11 11
10 11 12
LED BOARD (SIDE B)
CON2
3 1
11
(11)
1-688-332-
11
1-688-331-
(11)
XM-D400P5
• Semiconductor
Location (Side B)
Ref. No. Location
D2 D-4
D8 E-3
D13 D-5
D14 D-4
D15 F-4
D16 F-4
D19 B-8
D20 B-7
FET1 G-9
FET2 F-9
FET3 E-9
FET4 E-9
FET5 C-9
FET6 C-9
FET7 B-4
FET8 B-5
FET9 C-4
FET10 C-3
IC6 D-8
PTC1 H-6
PTC2 E-4
Q1 I-3
Q2 I-4
Q3 H-4
Q4 H-3
Q12 D-8
Q18 D-4
Q19 D-4
Q20 D-4
Q21 D-3
Q22 D-3
Q23 C-3
Q24 D-3
Q25 D-3
Q26 D-3
Q27 C-4
Q28 C-4
Q29 D-4
Q30 C-4
Q31 D-4
Q32 D-3
Q33 E-3
Q37 D-9
Q38 C-8
ZD1 H-3
ZD2 H-3
ZD3 G-4
ZD4 H-3
ZD5 E-4