Sylvania DV220SL8 A, Service Manual

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1-11-5
Hi-Fi Audio Block Diagram (DV225SL8)
57
48
47
13
14
69 71
6 7 9
R-CH INSEL L-CH INSEL
NOR SW
SERIAL DATA DECODER
OUTPUT SELECT
VCO
LPF
L-CH BPF
R-CH PNR
PILOT DET
CONT
STEREO PLL
STEREO FILTER SAP FILTER
SAP DET
SIF DEMOD
SAP DEMOD
L-R DEMOD
ST/SAP SW
MATRIX
L-CH PNR
LIM
DEV
COMP
SW NOISE
VCO
LPF
LIM
DEV
COMP
COMP
DC
SW NOISE
dBX DEC
ENV DET
RIPPLE FILTER
DO DET
MATRIX
R-CH BPF
P
R
R L
P
R
HOLD PULSE NOISE DET
ALC
34
33
23
4
80 78 37 38 54 77
1
39 26 24 27
AUDIO(R)-IN AUDIO(L)-IN N-A-OUT AUDIO(R)-IN-F AUDIO(L)-IN-F
LIM
49
MUTE
AUDIO(L)-OUT
AUDIO(R)-OUT
N-A-IN
Hi-Fi-H-SW
AUDIO-MUTE-H
NORMAL-L
TO AUDIO BLOCK DIAGRAM
IIC-BUS SDA
IIC-BUS SCL
P-ON+9V
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
MAIN CBA
Hi-Fi-
A
UDIO(R)
7
Hi-Fi
-COM
8
Hi-Fi-
A
UDIO(L)
9
CN253
IC451
(MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
REC AUDIO SIGNAL
PB AUDIO SIGNAL
Mode : SP/REC
PILOT CANCEL
TO AUDIO BLOCK DIAGRAM
TO SERVO/ SYSTEM CONTROL BLOCK DIAGRAM TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
62
63
Hi-Fi AUDIO (R) HEAD Hi-Fi AUDIO (L) HEAD
CYLINDER ASSEMBLY
(DECK
ASSEMBLY)
E8E00BLH