JVC HR-XVC20US Service Manual page 69

E
MP SCHEMATIC DIAGRAM
D PCB)
BUFFER
Q109
KTC3875S_Y_RTK
4.9
129
3.9
8K
3.3
C142
16V 47 MH7
C143
0.1 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
5V
320FH VSS
SLD
PLL
B
VCO
P R
TIMMING OUT
OUT
B REC
PC AFC DRIVER AUTO-BIAS
VSS
CLAMP
CCD
BEFORE
IN
BGA
BGA
AFTER
CNC
P VCA
PB VCA
AMP
CLAMP
B.D
P
VCP
3.58M
BPF1
1
2
3
PB-C
REG
4V
VIDEO
AGC
YNR/COMB
R R
P
1/2
BAL
N.L.
P
PB-C FBC TC1
DEEM
P
Y-LPF
R
Y/C
NC1
P
A MIX
R
R
P
AGC
TC2
RMAL 6DB
QV/QH
DOUBBLE FM
SUB
LIM DEM LPF
SYNC
SEP
MAIN
DE-EM V.SYNC
SEP
PB
S-EQ
P R
FM EQ P R Y-VCC
VHS SOPB
E PHASE MAIN
FM
B
EQ S
AGC EMPHA
Y-GND
DET
Q-ADJ FIL FIL
13 14 15 16 17 18 19 20
1.1 1.4 2.0 0 2.6
NC 2.6 0.2 2.8
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
R126
1.8K
BUFFER
0
Q107
KTA1504S_Y_RTK
1.6
1.6
0 0 2.2
R124
3.2
82K
C133
2.5
1 F C137
3.2
50V 1 MH7
C134
3.3
1 F
2.6
2.6
C139
4.1
0.1 F
2.3
C135
2.3
50V 0.22 YK
C140
2.1
NC
C136 50V 4.7 NA
1.6
35V 22 YK
3.6
4.1
5.0
4.4
C132
R121
3.2
1 F
1K
2.1
4.2
R120 3.6
BUFFER
Q106
220
KTA1504S_Y_RTK
0
PLAYBACK VIDEO SIGNAL
RECORD COLOR SIGNAL
RECORD LUMINANCE SIGNAL
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
PLAYBACK COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
TUNER VIDEO SIGNAL
F
G
FSC
4FSC
R122
100K
C138
50V 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
G
H
FROM/TO AUDIO/VIDEO
DVD_V_OUT[DAC_D]
FROM/TO TUNER/JACK
FRONT_V_IN
TU/REAR_V_IN
Y/C_VIDEO_OUT
GND
FROM/TO SYSCON
4FSC
Y/C_CLK
Y/C_DATA
Y/C_CS
DUMMY_V.SYNC
V.REC_ST-H
C.ROTARY
AUDIO_MUTE-H
CTL-
CTL+
H.AMP_SW
COMP
ENV.DET
H.SW
C.SYNC
PCBB00
VMB282
H
8
7
6
5
4
3
2
1