Technics SC-EH760

SURROUND
SPEAKERS
CENTER
SPEAKERS
(8 )
SPEAKERS
Rch
HEADPHONES
KEY
SWITCH
(S901~915)
19 20
KEY TU
KEY KARAOKE
Q901,
D904
RESET
12
RESET
+B9
15
Vss
89
Vss2
90
VDD2
+B7
VDD1
V
DD3
V
DD4
18
46 72
D902D901
LC8A524A5N28
IC901
SYSTEM CONTROL / FL DRIVE
1621
GND
1047
5
1
(2)
6
3
20
15
19
(18)
26
(25)
23
24
RSN311W64A
IC601
POWER AMP
+B3
D601
-B1
D602
-B2
Q601,602
9
+B8
Q551,554,555
13
POWER
98
E DET
HP SW
26
AC IN
AC IN
8687
/ECO
/ECO
POWER
POWER
11
+B7
1
CHECK
TP
14
N
Q503,558
+B4
51
-VP
-VP
85
MUTE
D906
SWITCH-
ING
D974
SWITCH-
ING
D907
22
8
11
(12)
HIGH
(6 )
MID
(6 )
RLY602
RLY605
LOW
(8 )
Q617
Q618
6
RL1
7
RL2
MUTING
CONT
Q911
(Q912)
Q902,961
-VP
MUTING
MUTE2
SIGNAL
LEVEL DET
RELAY
DRIVE
RELAY
DRIVE
+B11
+B11
POWER CONTROL
CIRCUIT
POWER CONTROL/
PROTECTION CIRCUIT