Technics SH-EH760

C
B
SCHEMATIC DIAGRAM-6
CN781
W701B
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
W722
W721
1
2
3
4
F
A
B
E
IH
F
C
A
B
D
E
Q551
2SA1995RSTA
SIGNAL LEVEL DET.
Q554
2SA1995RSTA
SIGNAL LEVEL DET.
Q555
2SD2144STA
SIGNAL LEVEL DET.
34
12
6
5
RL701
Q709
2SD2144STA
RELAY DRIVE
G
A
B
C
D
E
F
Q703
2SD2137PQTA
REGULATOR
POWER SUPPLY CIRCUIT
Q702
2SB1548PQAU
REGULATOR
Q725
2SC5398RSTA
REGULATOR
Q711
2SB1548PQAU
REGULATOR
Q705
2SA1995RSTA
REGULATOR
Q701
2SD2374PQAU
REGULATOR
E
F
P
1
2
3
4
5
6
7
8
9
10
E601
E602
C552
0.01
R559
4.7K
R570
2.2M
R591
4.7K
R556
100K
C551
50V2.2
D551
MA165TA
R557
10K
R548
1K
R561
100K
D552
MA165TA
R558
2.2K
C554
10V220
D555
MA4100MTA
C550
0.01
R546 5.6K
C553 50V0.47
R551 18K R552 47K R553 5.6K R554 5.6K R555 22K
R719
3.3K
C721
10V100
D725
MA4082LTA
D749
MA165TA
R729
220
C723
0.047
R767
1/4W4.7
R727
3.9K
C639
1000P
C640
1000P
C641
1000P
C642
1000P
C732
0.022
C647
1000P
R749
1K
D738
MA165TA
D758
MA165TA
D730
MA4091HTA
R770
100K
D739
MA165TA
R765
1/2W220
R724
3.9K
C720
0.047
R720 3.9K
C722 16V100
C718
10V100
C717
16V33
D723
MA4150HTA
R723
5.6K
C719
0.047
R725
10
R721
1/4W4.7
R766
1/2W47
D736
MA165TA
D563
MA165TA
R738
3.9K
R739
47K
C564
16V10
D715
MA165TA
MAIN CIRCUIT
R722
1/6W2.2
C734 50V3.3
R547
5.6K
C724
0.047
R797
0
D760
MA165TA
C710
0.047
Q
R
N
J
DC
F
G
R776 10K
68
42
7 5
31
31
57
2 4
68
R652
1/4W10
C626
0.1
C624
0.047
R646
1/4W10
R669
1/2W47
R670
1/2W47
D614
MA615TA
D613
MA165TA
R668
47K
R667
3.9K
R672
47K
R675
3.9K
L603
R643
1/2W10
R645
1/4W10
C625
0.047
L604
R644
1/2W10
L606
R650
1/2W10
L605
R649
1/2W10
R651
1/4W10
C627
0.1
RL605
RL602
B
A
C
D
B
E
A
Q618
Q617
R768
100
Q617, 618
2SD2144STA
RELAY DRIVE‘
R635
2.2K
: SOURCE SIGNAL LINE
: POSITIVE VOLTAGE LINE
: NEGATIVE VOLTAGE LINE
: SURROUND SP.DRIVE SIGNAL LINE
: CENTER SP.DRIVE SIGNAL LINE
29.4V
14.8V
-7.5V
10.4V
29.9V7.5V
8.1V
14.2V10.4V
13.5V
13.5V
10.2V
9.6V
-30.3V-7.5V
-8V
-0.6V
-8V
29.4V14.8V
15.4V
0.7V
0V
7V
0V
7.5V
0.3V
-7.5V
7.5V
-7.5V
-7.5V
6.2V
14.2V
6.2V14.2V
0V
0V
0.7V
0.7V
30.2V
-30.7V