Ic Block Diagrams - Sony SAVA-29 Service Manual

3-14. IC BLOCK DIAGRAMS

IC400 CXA8081S (DOLBY BOARD)
36 35 34
OSC
B
R
20KH-L.P.F.
20K
DEC
VSS
1 2 3 4 5 6 7
IC401 CXA8079S (DOLBY BOARD)
48 47 46 45 44 43
OSC DEC
N-GEN DIV
N-BPF
BAL-DET
BALCONT
N-OH
VREF
1 2 3 4 5 6
33 32 31 30 29
VDD
PDM
PDM-COUT
SRA1-8K
L-R
20K
L+R
20K
-6dB
20K
R B
R B
VCC
8 9 10 11 12
42 41 40 39 38
VCC
B P
C-TRIM
B P
B P B P
CMODE
R
COMB-NET
B
R
B
VR VR
GND
7 8 9 10 11
28 27 26 25 24 23
AGND
L+DELAY
5K/7K-L.P.F.
B-NR
R-STEREO
P
B
VREF
13 14
37 36 35 34 33 32
R-B.P.F.
SMUTE
VCRX8
L-B.P.F.
12 13 14 15 16 17
— 30 —
22 21
INV-PHASE
P
B
R+DELAY
VOL/MUTE
RS-TRIM
LS-TRIM
15 16 17 18
31 30 29 28 27
L+R-RECT
VCS-LOG
L-R-RECT
DUAL-TIME
R-RECT
VLR-LOG
L-RECT
19 20
18 21 22
20 19
26 25
P.S
P.S
23 24