Ic Block Diagrams - Sony STR-V7770 Service Manual

4-19. IC BLOCK DIAGRAMS

• MAIN BOARD
IC300 LV1041M
78
80 79 77
R BPF2 1
RECT
BPF
2
R BPF1 RECT
S DC OUT 3
4
C DC OUT
R DC OUT 5
L DC OUT 6
V REF
7
V REF
VCC
8
C OUT STRIM
9
C
S OUT
10 S
P
R OUT 11 R
B
P
L OUT L
12 12
B
GND 13
P
L IN
14
L
B
P
R IN
15
R
B
S IN
16
S
DELAY OUT 17
C VOL IN
18
DET
19
IREF
20 20
R OUT R
21
L
R NF 22
NF
SW
L NF 23
L OUT
24
26
25
73
76 75 74
LOGIC
FF
LOGIC
VCA VCA
VCA VCA
S
MODE
P
R
B
P
L
B
P
B
P
P
S
B
B
P
S
P
B
S R
C
MASTER
VOL
28 29 31
27 30
72 71 70
LOGIC
FF
LOGIC
VCA VCA
VCA VCA
C MODE
STRIM
DC
VOL/
CUT
MUTE
B P B
L
S
32
33 34 35 36
— 46 —
69 68 67 66 65
RECT
RECT
P
VOL
B
P
VOL
B
CH
CONTROL
BPF
CONTROL
NOISE
FILTER
NOISE
IEV
GEN
B NR
P
B
DATA
DECODER
OUT
FILTER
C
D
P
IN
FILTER
B
SRAM
PCM
CONTROL
PCM
VDD
MASTER VOL
37 38 39
64 L BPF2
BPF 63
L BPF1
62
RT IN
R
L
61 LT IN
60
DC CUT
C MODE
59
58
GND
57
NS BPF1
56 NS BPF2
OSC
55
OSC
CLK
54
53 DATA
52
ENABLE
51 DATA
50 CLK
49 ENABLE2
48 VSS
47 OSC
46 OSC
VDD
45
44 A/D
43
NS
42 D/A
DC CUT
41
40