Technics SA-EH670 - Page 45

SPEAKERS
Rch
PHONES
KEY
SWITCH
(S901~908,
910~915)
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
C2BBFD000317
IC901
SYSTEM CONTROL / FL DRIVE
16
GND
10
2
1
6
3
20
15
23
(22)
26
25
24
RSN309W44B
IC601
POWER AMP
+B3
D601
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
5
(8)
AC IN
SIGNAL
LEVEL DET.
POWER CONTROL
CIRCUIT
POWER CONTROL/
PROTECTION CIRCUIT
-B3 +B5
CENTER
(8 )
SURROUND
(8 )
Lch
(6 )
STABILIZER
Q671,672
7
-B1
D602
214
-B2
STABILIZER
Q673
Lch
Rch