Sony STR-DH100 Service Manual page 27

• IC Block Diagrams
IC700 STK350-530T-E (MAIN BOARD) (1/3)
BIAS CIRCUIT
PROTECTOR
PRE
REG DRIVE
DRIVE
1 2 3 4 5 6 7
IC400 BD3474KS2 (MAIN BOARD) (1/3)
60 59 58 56 55
57
GND 61
FRIN2 62
FLIN2 63
SRIN2 64
SLIN2 65
SWIN2 66
CIN2 67
RECR5 68
RECL5 69
GND 70
Rec
RECR1 71
RECL1 72
RECR2 73
RECL2 74
RECR3 75
SW2 C
Volume Volume
RECL3 76
RECR4 77
RECL4 78
GND 79
GND 80
1 2 3 4 5
PRE
DRIVE
DRIVE
8 9 10 11 12 13 14 15
54 53 52 51 48 47 46 45
50 49
Mode Mode Mode
Selector Selector Selector
FL
SW1 SL SR
Volume
Volume Volume Volume
Tone
Logic
6 7 8 9 10 11 12 13 14 15 16
44 43 42 41
40 INL2
39 INR2
38 INL1
37 INR1
36 GND
35 SUB1L
34 SUB1R
33 GND
32 ADCR
31 ADCL
30 GND
29 FRIN1
28 FLIN1
27 SRIN1
26 SLIN1
FR
Volume
25 SWIN1
24 CIN1
Tone
23 SW2IN
22 N.C
21 GND
19 20
17 18
STR-DH100
27