JVC HR-XVC20US(R) Service Manual page 16

Dvd/cd player hi-fi stereo video casstte recorder
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E
AMP SCHEMATIC DIAGRAM
CR PCB)
BUFFER
Q109
KTC3875S_Y_RTK
4.9
R129
3.9
.8K
3.3
C142
16V
47
MH7
C143
1 F
R127
C141
680K
0.01 B
NC
3.2
3.3
3.2
4.9
4.9
1.2
2.2
0.8
48
47
46
45
44
43
42
41
CLOCK
ALWAYS
VDD
4Fsc
0
5V
320FH
VSS
SLD
PLL
B
VCO
1.6
P
R
TIMMING
OUT
OUT
PB
REC
0
APC
AFC
DRIVER
AUTO-BIAS
VSS
3.2
CLAMP
CCD
BEFORE
IN
BGA
BGA
2.5
AFTER
CNC
P
VCA
3.2
PB
VCA
AMP
3.3
CLAMP
B.D
P
2.6
VCP
3.58M
2.6
BPF1
1
2
3
PB-C
4.1
REG
4V
VIDEO
AGC
YNR/COMB
2.3
P
R
R
P
1/2
BAL
2.3
N.L.
MP
FBC
TC1
PB-C
DEEM
P
Y-LPF
2.1
R
Y/C
NC1
P
HA
R
MIX
R
P
AGC
1.6
TC2
D
3.6
ORMAL
QV/QH
6DB
DOUBBLE
FM
SUB
LIM
DEM
LPF
4.1
SYNC
SEP
MAIN
5.0
DE-EM
V.SYNC
SEP
PB
4.4
S-EQ
P
R
FM EQ
P
R
Y-VCC
VHS
SOPB
3.2
SE
PHASE
MAIN
FM
2.1
EQ
S
B
EMPHA
AGC
Y-GND
J
Q-ADJ
FIL
DET
FIL
13
14
15
16
17
18
19
20
1.1
1.4
2.0
0
2.6
2.6
0.2
2.8
NC
V.ENV
18
TP101
NC
CAUTION: DIGITAL TRANSISTOR
E
2-4
The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only.
Note :
When replacing the parts , refer to the Parts List.
F
L103
5.6uH
BUFFER
Q107
KTA1504S_Y_RTK
1.6
0
2.2
R124
82K
C133
1 F
C137
C134
50V
1
MH7
50V
1
KA
50V
C139
0.1
F
C135
50V
0.22
YK
C140
C136
50V
4.7
KANP
35V
22
YK
C132
R121
50V
1
KA
1K
4.2
R120
3.6
BUFFER
Q106
220
KTA1504S_Y_RTK
0
F
G
FSC
4FSC
R122
100K
C138
1
YK
TU/REAR_V_IN
FRONT_V_IN
R143
1K
R141
DVD_V_OUT[DAC_D]
1K
16
Y/C_VIDEO_OUT
C.SYNC
DUMMY_V.SYNC
W809
P.CON+5V
PLAYBACK VIDEO SIGNAL
RECORD COLOR SIGNAL
RECORD LUMINANCE SIGNAL
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
PLAYBACK COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
TUNER VIDEO SIGNAL
G
H
8
7
FROM/TO TUNER/JACK
DVD_V_OUT[DAC_D]
FRONT_V_IN
TU/REAR_V_IN
Y/C_VIDEO_OUT
6
FROM/TO SYSCON
4FSC
Y/C_CLK
Y/C_DATA
Y/C_CS
DUMMY_V.SYNC
V.REC_ST-H
5
C.ROTARY
AUDIO_MUTE-H
CTL-
CTL+
H.AMP_SW
COMP
ENV.DET
H.SW
C.SYNC
4
3
2
PCB010
VMC300
1
H

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