JVC HR-XVC1UJ/M Service Manual page 84

E
EAD AMP SCHEMATIC DIAGRAM
(VCR PCB)
R129
4.9
1.8K 1/4W
BUFFER
3.9 Q109
2SC2412K
3.3
C142
16V
R127
17
680K
NC
2.1 4.8 4.1 3.2 3.3 3.2 4.9 4.9 1.2
2 51 50 49 48 47 46 45 44 43
ALWAYS VDD 4Fsc
CC
5V
320FH
SLD
VX01 B
VCO
P R
TIMMING
REC PB REC
APC APC AFC DRIVER
CCD
BEFORE
R P BGA
BGA
AFTER
CNC
BGA
R P
PB
AMP
3.58M
BPF2
B.D
B-UP
P
AMP
3.58M
ACC
BPF1
AMP
P P R
PB-C
ACC
DET
VIDEO
AGC
YNR/COMB
P R R
P
1/2
R
DETAIL
N.L.
CLAMP
PB-C FBC
ENH
DEEM
P
Y-LPF
R
NL NL
Y/C
NC1
P
EMPHA
EMPHA MIX
R
R
P
FM
MOD
R-EQ
NORMAL
QV/QH
TEST
DOUBBLE FM
SUB
LIM DEM LPF
LINE
REC
AMP MAIN
FM-EQ
DE-EM
V.SYNC
FM PB
S-EQ
P R
P R AGC FM EQ P R
VHS
SOPB
C
MUTE
MP
PHASE PHASE MAIN
AUTO FM
EQ EQ
BIAS EMPHA
AGC
Y-GND
Q-ADJ
fo-ADJ FIL FIL
17 18
10 11 12 13 14 15 16
0.8 4.8 1.1 1.1 1.4 2.0 0 2.6
NC 2.6
19
V.ENV
18
TP101
NC
CAUTION: DIGITAL TRANSISTOR
PART WAS
ITAL TESTER
E
47 YK
C143
0.1 F
C141
0.01 B
2.2 0.8
42 41
BUFFER
CLOCK
0
Q107
VSS
PLL
2SA1037AK
1.6
OUT
1.6
OUT
0 0 2.2
AUTO-BIAS
VSS
3.2
CLAMP
IN
C133
2.5
50V 1 YK C137
VCA
3.2
VCA
50V 1 YK
C134
3.3
CLAMP
50V 1 YK C138
2.6
VCP
50V 1 YK
2.6
1
2
3
C139
4.1
REG
4V
0.1 F
2.3
C135
BAL
2.3
TC1
50V 0.22 YK C140
2.1
NC NC
C136 50V 4.7 KA
1.6
AGC
TC2
35V 22 YK
3.6
6DB
4.1
SYNC
SEP
5.0
SEP
4.4
Y-VCC
C132
3.2
R120
3.6
50V 1 YK
2.1 220
B
S
DET
19 20
0.2 2.8
RECORD COLOR SIGNAL
RECORD LUMINANCE SIGNAL
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
PLAYBACK COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
TUNER VIDEO SIGNAL
F
R124
82K
R122
100K
TU/REAR_V_IN
FRONT_V_IN
DVD_V_OUT
R121
16
1K 1/4W
Y/C_VIDEO_OUT
DUMMY_V.SYNC
L104_1
P.CON+5V
22uH 0305
4.2
BUFFER
Q106
2SA1037AK
0
F
G
FROM DVD IN/OUT
DVD_V_OUT
FSC
FROM/TO TUNER/JACK
FRONT_V_IN
TU/REAR_V_IN
Y/C_VIDEO_OUT
FROM/TO SYSCON2
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
C.SYNC
G
H
8
7
6
5
4
3
2
PCB010
VMA237
1
H
2-19