Block Diagram - Pioneer VSX 108 - AV Receiver Service Manual

VSX-108
00201041-040 (LV1041M) (MAIN PCB : IC201)
• Dolby Pro-Logic Decoder IC

Block Diagram

80 79
1
R-BPF2
R-BPF1 2
BPF
S•DC-CUT2 3
C•DC-CUT
4
R•DC-CUT
5
L•DC-CUT
6
V 7
V
REF
REF
V 1
8
CC
C-OUT
9
C CIRIM
S-OUT 10
S
A
SW6
R-OUT 11
R
B
A
SW5
L-OUT 12
L
B
13
AC-GND
A
L-IN 14
SW7
L
B
A
R-IN 15
SW8
R
B
S-IN 16
S
DELAY-OUT
17
C•VOL-IN
18
DET 19
REF 20
R
R-OUT 21
L
NF-SW
R-NF
22
L-NF
23
L-OUT 24
25 26
28
78 77 76 75 74
RECT
VCS
LOGDIFF
RECT
VCA VCA
VCA VCA
S-MODE
A
SW4
R
B
A
SW3
L
B
A
SW12
B
A
SW9
SW10
A
B
S
B
20k
A
SW11
S
B
A
SW13
S R
C
MASTER VOL.
20k
24k
27 28 29 30 31
73 72 71 70 69
LR
PG PG LOGDIFF
R
A
VCA VCA
SW2
B
VCA VCA A
SW1
L
B
CH-CONT
C-MODE
B-NR
STRIM
A
B
DC-CUT
VOLUME
OUT-FILTER
C
D
IN-FILTER
S-RAM
ADM-CONT.
A
B B
ADM
SW14
L
S
20k
24k
32 33 34 35 36
68 67 66 65
64
63
RECT
BPF
62
RECT
61
60
VOL
R
59
50k
VOL
L
58
50k
57
BFL-CONT
56
NOISE-FIL
55
OSC
NOISE-GEN
DEV
54
53
DATA-DEC
52
51
A
SW15 50
B
49
48
47
46
V
DD
45
44
43
42
MASTER VOL.
41
37 38 39 40
L-BPF2
L-BPF1
RT-IN
LT-IN
DC-CUT
C-MODE
GND1
NS-BPF1
NS-BPF2
OSC
CLK
DATA
ENABLE
DATA
CLK
ENABLE2
V
SS
OSC
OSC
V
DD
A/D
NS
D/A
DC-CUT