Technics SA-EH770 - Page 52

SPEAKERS
Rch
PHONES
KEY
SWITCH
(S901~915)
19 20
KEY TU
KEY KARAOKE
Q901,
D904
RESET
12
RESET
+B8
15
Vss
89
Vss2
90
VDD2
+B9
VDD1
V
DD3
V
DD4
18
46 72
C2BBFD000297
IC901
SYSTEM CONTROL / FL DRIVE
1621
GND
1047
5
1
(2)
6
3
20
15
19
(18)
26
(25)
23
24
RSN311W64B
IC601
POWER AMP
+B3
D601
-B1
D602
-B2
Q601,602
9
+B7
Q551,554,
555
13
POWER
98
E DET
HP SW
26
SASYNC
AC IN
88
POWER
POWER
11
+B8
1
CHECK
14
N
Q503,D558
51
-VP
-VP
86
MUTE
D906
PRO-
TECTOR
D974
SWITCH-
ING
D907
22
8
11
(12)
AC IN
SIGNAL
LEVEL DET.
POWER CONTROL
CIRCUIT
POWER CONTROL/
PROTECTION CIRCUIT
-B3 +B5
SURROUND
(8 )
CENTER
(8 )
HF
(6 )
LF
(8 )
M
FAN MOTOR
MOTOR
DRIVE
Q553,556,
557
For [GC] area.