Sony STR-KM22 Service Manual page 48

STR-KM22/KM55/KM77
IC404 BD34701KS2 (MAIN BOARD (4/9))
39
Main
Sub
SBLIN 40
41
SBRIN
42
SLIN
43
SRIN
44
CIN
45
SWIN
46
FLIN
47
FRIN
48
GND
ADC
FR
49
ADCR
Volume
ADCL 50
51
GND
52
CHIP
1
48
38 37 36 35
GSM GSM GSM GSM GSM
Mode Mode
selector selector
FL SW C
Volume Volume Volume
Logic
2 3 4 5
34 33 32 31 30
GSM GSM GSM GSM GSM
Mode
selector
SR SL
Volume Volume
6 7 8 9 10
29 28 27
GSM GSM
Mode
selector
Rec
SBR SBL
Volume Volume
11 12 13
26 GND
25
INR7
24
INL7
23
INR8
22
INL8
21
GND
20
GND
19
RECR
18
RECL
17
GND
16
GND
15
SUBR
14
SUBL