Y/C Block Diagram - LG LGXBR342 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
C-LPF
SP PB 'B'
72
P
SP PB 'A' 74 P
OUT 39
CCD CLAMP 37
36
IN
VCA
CNC
34
CLAMP
3.58M
BPF2
MAIN
CONV
ACC 3.58M
AMP BPF1
4.21M
BPF ACC
YNR
DET
COMB
SUB
CLAMP
CONV
Y
LPF
Y/C
MIX
26
6dB
DOUBLE FM SUB
LIM DEM LPF
MAIN
DE-EM
FM PB
AGC FM-EQ
22
21
B
(REC Mode)
EP REC
SP REC
V.OUT
3-24 3-25
57 55 54 53 51 50 49 48 47
320FH
SERIAL
VX01 SLD
VCO
DECODER
REC REC
APC APC
66 R
BGA
MAIN B-UP
C-LPF
69
CONV AMP
ACC
AMP
70
4.21M
ACC
BPF
DET
SUB DETAIL
CLAMP
ENH
CONV
NL MAIN
R
73 EMPHA
EMPHA
FM
MOD
REC
FM-EQ
OUT 39
38
37
CCD CLAMP
IN
36
VCA
34
CLAMP
IC302
TU/LINE1
SW
32
BLOCK
3.58M
BPF1 VIDEO
AGC
DVD
30
YNR
COMB
Y
LPF
LINE2
28
V.OUT
26
22
B 21
20