Technics SA-EH670 Service Manual page 45

RSN309W44B
IC601
23
POWER AMP
(22)
POWER CONTROL
CIRCUIT
26
25
24
10
GND
POWER CONTROL/
PROTECTION CIRCUIT
13
16 7 4 21
D602
STABILIZER
-B1
Q551,554,555
SIGNAL
LEVEL DET.
-B3 +B5
11
19 20
KEY Q901,
SWITCH D904
(S901~908,
910~915)
Q671,672
20
STABILIZER
3
D601
6
+B3
15
1
2
5
(8)
9
14
Q673
-B2
Q601,602
PRO-
TECTOR
98
C2BBFD000317
IC901
SYSTEM CONTROL / FL DRIVE
15 89 90
12
RESET
+B8
+B9
R ch
D974
+B7
Q503,D558
SWITCH-
ING
D907
D906
-VP
88
86 26 51
18 46 72 1
+B8
PHONES
CENTER
(8 )
Lch
SURROUND
(8 )
SPEAKERS
Rch
Lch
(6 )