Sony STR-DN1050 Service Manual page 74

STR-DN1050
IC232 NJM2279M-TE2 (MAIN BOARD (3/4))
V- SW2 VIN1
14 13 12
20k
1 2 3 4
VIN3 SW1 VIN2 MUTE2
IC421 BD3470KS2 (MAIN BOARD (4/4))
60 59 58 57
INL2 61
62
INR2
63
INL1
64
INR1
65
AGND
66
SBLIN1
67
SBRIN1
Mode
68
SLIN1
selector
69
SRIN1
70
CIN1
71
SWIN1
72
FLIN1
73
FRIN1
74
AGND
ADC
75
ADCR
FR
Volume
ADCL 76
AGND 77
Sub1
78
SUB1R
79
SUB1L
80
AGND
1 2 3
74
MUTE1 VOUT1 NC
11 10
6dB
6.0dB
20k
4.45k
4.14k
6dB
6.0dB
20k
4.45k
4.14k
5 6 7
VOUT2 GND2 GND1
56 55 54 53 52 51 50
Mode
selector
FL SW C SR
Volume Volume Volume Volume
EQ
Logic
4 5 6 7 8 9 10 11
V+
9 8
75 Driver
75
75 Driver
75
49 48 47 46 45 44 43
Multi2
Multi1
Mode Mode
selector selector
SL SBR SBL
Volume Volume Volume
12 13 14 15 16 17 18
42 41
40
AGND
39
FRIN2
38 FLIN2
37
SWIN2
36 CIN2
35
SRIN2
34
SLIN2
33
SBRIN2
32
SBLIN2
31
AGND
Rec
30
RECR1
29
RECL1
28 RECR2
27
RECL2
26 RECR3
25
RECL3
Sub2
24
RECR4
23
RECL4
22
AGND
21
AGND
19 20