JVC HR-XVC1UJ/M Service Manual page 94

DULATOR SCHEMATIC DIAGRAM
(VCR PCB)
DEM IC
4.7
2.2 0 3.5 2.1 2.3 4.7 0
P
48 47 46 45 44 43 42 41
4
DEM_BLK
LOGIC
7
4.5M CUE AM 95HMz MUTE VCO-F0
TRAP BPF DEMOD BPF CTL ADJ
LOGIC
9
SUB SUB 3.5M
COMP
BPF DET VCO
5
MAIN FM LOGIC
SW21
DEEN DEMOD
2
SUB DEEN
MATRIX
FROM 1PIN
MUTE
OUTPUT SW
3
LOG
R SW18
AMP
R L
AMP
AMP
SW19
0
L
J
R
AN3672FBP
2 MUTE
L
3
SW17
AMP
L
R
0 FROM 3PIN
RFC
3
DET
0
SW2
SW22 L
MIX
4
R
3
L
INPUT_SW(L)
2 R
INPUT_SW(R)
6
VREF1
1 2 3 4 5 6 7 8
2.3
0
2.3 0 2.2 2.4 2.1 0.5
HEMATIC DIAGRAM IS THE LATEST AT THE TIME
TING AND SUBJECT TO CHANGE WITHOUT NOTICE
E
NC 0
4.9 0 1.6 2.4 0.7 2.4
0
40 39 38 37 36 35 34 33
2.4
ZZ-PROM
2.1
1.8
S/N
SW12
PNR RCH
SW NOISE PB REC 1.8
RCH
SW9
1.8
VCO
AUDIO
LIMIT
REC LPF
2.5
BS
PC PB LPF
HPF
HIFI
0
NOISE
MIX
DET
RCH BPF
4.9
SW16 FM UM
LINER
SW10
SW
MIX LCH BPF
0.6
HIFI
HOLD
BS
TIMING
PC PB LPF
0
CURR
AUDIO
AMP
LIMIT 0.7
-
SW14
SW4
-
0
SW NOISE +
PNR LCH
0
S/N
MIX DET
SW15
H
2.4
REC LPF
AGC
LCH VCO SW11
L
2.4
0.7
9 10 11 12 13 14 15 16
0 0 0 2.0 2.2 0 0 2.4
NC NC
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
E
F
C730 0.015 B
C731
HIFI ENV.
50V 0.22 YK
TP701
NC
D701
V.REC_ST-H
1SS133
HIFI_ENV.DET
C732 0.01 F
28
HIFI_H.SW
C729 0.01 B
C722_1
0.1 B L704_1
C761
P.CON+5V
22uH 0305
C723
6.3V 47 MH7
0.01 F
C724
0.01 F
C725_1 0.1 B
C726 0.015 B
C727 10 YK
50V
10 MH7
C728 16V
F
G
FROM/TO TUNER/JACK
FRONT_A_IN_R
FRONT_A_IN_L
HIFI_A_OUT_L
HIFI_A_OUT_R
RF_CONV_A_OUT
SIF_OUT
FROM/TO Y/C/AUDIO/CCD/HEAD AMP
HF2
HF1
HF_COM
FSC
FROM_NORMAL_A
TO_NORMAL_A
FROM REGULATOR
P.CON+5V
P.CON+12V
GND
FROM/TO VCR SYSCON
V.REC_ST-H
HIFI_ENV.DET
HIFI_H.SW
AUDIO_MUTE-H
SCL
SDA
ST_SELECT
FROM DVD IN/OUT
DVD_A_OUT_L
DVD_A_OUT_R
G
H
8
7
6
5
4
3
2
PCB010
VMA237
1
H
2-29