STR-DH500
39
PROTECTOR
DRIVE
1
2 3 4 5 6
7
8 9 10 11 12 13 14 15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
+VOUT1
MUTE
–VOUT1
NF1
COMP1
COMP2
IN1
GND
IN2
NF2
–VOUT2
+VOUT2
VCC
VCC
VEE
DRIVE
• IC Block Diagrams
IC601 STK350-530T-E (MAIN BOARD (1/2))
IC701 STK350-530T-E (MAIN BOARD (1/2))
IC801 STK350-530T-E (MAIN BOARD (1/2))
INL2
INR2
INL1
INR1
AGND
SBLIN1
SBRIN1
SLIN1
SRIN1
CIN1
SWIN1
FLIN1
FRIN1
AGND
ADCR
ADCL
AGND
AGND
SUB1R
SUB1L
FRIN2
FLIN2
SWIN2
CIN2
AGND
SRIN2
SLIN2
SBRIN2
SBLIN2
RECR1
RECL1
RECR2
RECL2
AGND
RECR3
RECL3
RECR4
RECL4
AGND
AGND
IN
R3
IN
L3
IN
R4
IN
L4
IN
R5
IN
L5
IN
R6
IN
L6
IN
R7
IN
L7
IN
R8
IN
L8
IN
R9
IN
L9
IN
R1
0
IN
L1
0
IN
L1
1
IN
R1
1
IN
L1
2
IN
R1
2
HP
FN
LP
F0
1
LP
F0
2
LP
FN
2
AG
ND
LP
FN
1
SW
VO
L
VC
C
DG
ND
VE
E
OU
TF
R
OU
TF
L
OU
TS
W
OU
TC
OU
TS
R
OU
TS
L
OU
TS
BL
OU
TS
BR
M
ain
L
M
ain
R
Mode
selector
Mode
selector
Mode
selector
Logic
FR
Volume
FL
Volume
SW
Volume
C
Volume
SR
Volume
SL
Volume
SBR
Volume
SBL
Volume
Mode
selector
Sub2
Rec
Su
b2
M
ain
Sub1
ADC
M
ain
Su
b1
CL
DA
EQ
Multi1
Multi2
Su
bR
1
Su
bR
2
Su
bL
1
Su
bL
2
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
64
63
65
67
66
68
70
69
71
73
72
74
76
75
77
79
80
78
39
40
37
38
36
34
35
33
31
32
30
28
29
27
25
26
24
22
21
23
Summary of Contents for STR-DH500
Page 67: ...MEMO STR DH500 67 ...