Schematic Diagram - Amp Section - Sony HCD-GNZ333D Service Manual

Q Q
3 7 6 3 1 5 1 5 0
7-18. SCHEMATIC DIAGRAM – AMP Section –
1
AMP BOARD
A
R783 R781
2.2k
-0.4
Q753
2SA2026
PROTECT
0
B R784 R782
2.2k
-0.4
Q754
2SA2026
PROTECT
0
D752
1SS133T-77
T E
L 1 3 9 4 2 2 9 6 5 1 3
C
OUT-L
OUT-L
-VP
D
-VP
MAIN
BOARD +VP
H
(1/3)
+VP
WH106
OUT-R
(Page 37)
OUT-R
PA-GND
PROTECT
w w w
HCD-GNZ333D/GNZ444D
• See page 60 for IC Block Diagram.
2 3
1 2 3
R775
10k 220
0
R785
10k
R776
10k 220
0
R762
R793 R764
47
47 47
R786 R794 R765
R763
10k 47 47 47
CN751
10P
5
2SA1235TP-1EF
1
2
0
3
4
5
0
6
7
8
9
10
x a o
y
. i
http://www.xiaoyu163.com
4
IC B/D
IC751
STK433-100-M-E
IC751
POWER AMP
4 5 6 7 8 9 10 11 12 13 14 15
C758
100p
C791 4700p
C757
C755
100p
C764 100 16V 2200p
R791
47
R755
47k
R792
47
Q Q
3 7 6
R767
390
Q751
R768
100k
4.9
Q751,752
PROTECT LATCH
4.9
Q752
2SC3052F-T1-LF
u 1 6 3
49 49
http://www.xiaoyu163.com
2 4
8 9 9
5 6
C756
2200p
R756
47k
3 1 5 1 5 0 8 9 2
W751
4P
1 AMP-ON
MAIN
IN-L BOARD
2
I
(1/3)
3 A-GND
CN107
IN-R
4
(Page 37)
m
c o
.
HCD-GNZ333D/GNZ444D
2
8 9 9
4 9 8 2 9 9