JVC GR-AXM236U Service Manual page 127

C
a V_PB_C
5
BUF
BUF
D/A Y
BUF
CONV
D/A B-Y
BUF CLAMP
CONV
R-Y
D/A
BUF CLAMP
CONV
4
3
A/D HPF
C_SYNC B
2
I/F
REC
REC_Y
Y :8bit
C :4bit
PB
PB_C
(Y+C)
10bit
CBI
DICK
NRBIN
NRB_OUT
CPO0
I/F
CPO3
DOCK
2FSC
1
A B
OPEN
IC4001(DSP)
IC4701
DA_R 168
(V OUT)
DA_B 147
TO LCD/CVF
DA_G 169
TO BW/CVF
BWY0
146
BWYOUT
Q4701
Y
YOUT 160 CAM_Y
MOD
COUT CAM_C C
161
+ LIM BLK
MOD
LPF
SUB CARRIER
MODULE
PBFMI(AINT) 220
SVHSOUT 139 S_DET_L
Y Y
FM FB
DEMO CLAMP
REC
DO N.L EMPH S_ET
S DET
Y
DET
Y REC SUB EMPH LPF
D. E
LPF
YNR
N.L DE_EMPH
PB
SUB DE_EMPH
Y
REC PB
Y
Y
REC PB REC PB
CHROMA
LOGIC
SYNC
SEP
Y
Y
SYNC Y
ADD CLIP
C C PB
REC
HPF
ACC C
LPF
C C
HiFi
REC PB
TRAP
C
ACC C
DET COMB
C
BURST ADD C
BURST
P.BURST ADD ENCODER EMPH
Chroma
APC
Logic
DET
C MUTE C
GAIN BURST L
P.BURST
CTL DE_EMPH CNR
ERASE
Y
C
JIG_CONN.
11
CN25
Y+C
Y
C
2 15 9
12
IC4702
Y/C Y/C MIX
MIX &6dB AMP (V OUT)
IC3501
6 4 2 7
(VTR ASP)
BUF BUF Q4702
PB_C
C 21 C
V_PB_C
PB_FM
V PB F 25
G. EQ P. EQ
Q3505
V_REC_C
REC_C
S_DET+ 19
SW
C
V_REC_F
Y
20 REC_FM
D/A
LPF
Y
SCK3 31 CLK
FROM SO3 DATA
32 SERIAL
CPU V_ASP_CS 33 LOAD I/O
2FSC
28 2FSC
1/2
27 CR DET
C3514
MAIN EMPH
Y REC_FM OUT 211 Y
W/D CLIP FM GAIN
D/A
MOD CTL
Y MAIN
DE_EMPH
Y
H SW
PC1
Y
FF LNC GAIN
NC/PC2 MUTE
I/F
CLAMP PBYNR CTL
DOCK
Q4001
C SYNC 179
SW
V_PLS_ON
C C
REC_C OUT 212
GAIN
MUTE D/A
CTL
DECODER
FSC2OUT 239
D E
4-57 4-58
CH2
PB AMP
SW
CH4
PB AMP
C
A/D
LPF
LPF
CH1
PB AMP
FM
TRAP
AGC
CH3
PB AMP
CH2
CURRENT
AMP
SW
CH4
CURRENT
C C
REC_C
AMP
EQ
BUF
+
Y Y Y
LPF HPF TRAP
CH1
CURRENT
AMP
CH3
CURRENT
AMP
CR
V_REC_F
S_DET_L
D4001
S_DET+
FROM CPU
V_REC_C
2FSC
F
J504
A/V OUT
Y+C 2
1
1
Y
3
J505
Y
C 4
C
S OUT
2
CN5
Q3502
13
4
CH2_S
12
CT
CH2
SW2
5
CH2_F
Q3502
10
6
CH4_S
CT 9
CH4
SW4
7
CH4_F
Q3501
6
8
CH1_S
CT 5
CH1
SW1
9
CH1_F
3 Q3501
10
CH3_S
CT 2
CH3
SW3
11
11
CH3_F
R/T
8 VIDEO HEAD
4
1
G H