Y/C Block Diagram - Zenith XBV323 Series Service Manual

3. Y/C BLOCK DIAGRAM

(PB Mode)
59 58 57 55 54 53
ENV AUDIO C-ROT
DET MUTE RF-SW
HA SW IN
ACC
64
DET
EP PB 'A'
65
P
EP PB 'B' 67
P
MAIN
C-LPF
CONV
4.21M
BPF
SUB
CONV
SP PB 'B' 72
P
SP PB 'A'
74 P
OUT 39
CCD CLAMP 37
36
IN
VCA
CNC
34
CLAMP
3.58M
BPF2
ACC 3.58M
AMP BPF1
ACC
YNR
DET
COMB
CLAMP
Y
LPF
Y/C
MIX
V.OUT
6dB 26
DOUBLE FM SUB
LIM DEM LPF
MAIN
DE-EM
FM PB
AGC FM-EQ
22
B 21
3-24
(REC Mode)
57 55 54 53
SERIAL
DECODER
EP REC 66 R
MAIN
C-LPF
69
CONV
70
4.21M
BPF
SUB
CONV
SP REC
R
73
3-25
51 50 49 48 47
320FH
VX01 SLD
VCO
OUT
39
38
REC REC
APC APC CCD CLAMP 37
IN
36
VCA
34
CLAMP
BGA
IC302
TU/LINE1
SW
B-UP 32
AMP BLOCK
ACC
3.58M
AMP VIDEO
BPF1
AGC
ACC DVD
30
DET
YNR
COMB
DETAIL
CLAMP
ENH
Y
LPF
LINE2
MAIN
NL 28
EMPHA
EMPHA
FM
MOD
V.OUT
26
REC
FM-EQ
22
B 21
20