Y/C/Audio/Ccd/Head Amp Schematic Diagram - JVC HR-XVC25US Service Manual

A B
8
FROM/TO POWER
7
P.CON+5V
GND
FROM/TO HI-FI/DEMODULATOR
FSC
TO_NORMAL_A
FROM_NORMAL_A
6
HF1
HF_COM
HF2
A.VCC
FROM/TO CYL
CP101
TOC-C09X-A1
5
9 HF1 (R)
8 HF_COM
7 HF2 (L)
L107
P.CON+5V
6 SP-CH1 (R)
22uH
5 SP_COM
0305
4 SP-CH2 (L)
3 EP/LP-CH1 (R)
2 EP/LP COM
1 EP/LP-CH2 (L)
4
C103
A.VCC
6.3V 22 MH7
R105
TO_NORMAL_A
C129
1K
3
1 B
C174 6.3V 47
KA
P.CON+5V
FROM/TO HEAD AUDIO CONTROL
5.2
SW
CP102 R140
0
V.REC_ST-H
Q103
IMSA-9604S-06C
KRA103SRTK
2.2K 1/4W
COIL,BIAS OSC
6 AUDIO REC
5.3
5 AUDIO PB
CTL+
4 CTL+ 6 1
R101
CTL-
3 CTL- 5 2
560
2 AE HEAD(+) 4 3
1 AE HEAD(-)
AUDIO PB SW
Q101 0 20
FFC
2
KTC3875S_Y_RTK R102
0.7
CD102
10K
2H061504
AUDIO PB SW 0
Q102
KTC3875S_Y_RTK
TO FULL ERASE HEAD
0
R103
0.7
CP103
10K
B2013H02-2P
0
GND
2 FE HEAD(GND)
HOT
1 FE HEAD(HOT)
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
C

Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM

4.8 4.8 0 5.2 0 5.2 5.2 5.2
60 59 58 57 56 55 54
C166 COMP OUT
2.1 ENV AUDIO C-ROT C-GND
SERAIL
KILL DET MUTE RF-SW
DET HA SW IN DECODER
0.068 B
0
HA
GND
C169
2.9
CHROMA
DET
0.047 F
C165
1.6 ACC
DET
0.047 F
1.8
P
1.9
R
P R
H
1.8
P L
C-LPF
5.0
HA VCC
1.8
+
1.6
0 HA
PRE GND
1.8
H
P
L
1.8
R
1.8
P
0
A-GND
2.3
1
ALC R
2
3
P
4.9
A-VCC
ALC
2.3
DET
C105
0 PB,EE
PB,EE
EQ
REC:LP<EP
6.3V 22 MH7
C109 AMP
2.3 PB:EP
SP,LP
Vref
0.1 B
2.3V
1 2 3 4 5 6 7
Y/C/AUDIO/CCD/HEAD AMP IC 2.3 2.3 2.3 2.3 2.3 2.3 0 2.3
IC101
LA71206M-MPB
R109
1K
1/4W
L101 BIAS CTL
1626009 Q105
0.0012
KTA1266
L102
C112
R112
0
100uH 5.2 6.3V 220 KA
0305
5.2 330K
C118
R108
0.01 B
0
22K
0 BIAS OSC
0
Q104
KTC3203_Y C110
16V 47 MHE
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
C
Note :
D E
(VCR PCB)
BUFFER
Q109
KTC3875S_Y_RTK
4.9
R129
3.9
1.8K
3.3
C142
16V 47 MH7
C143
1 F
R127 C141
17
680K 0.01 B
NC
4.9 2.1 4.8 4.1 3.2 3.3 3.2 4.9 4.9 1.2 2.2 0.8
53 52 51 50 49 48 47 46 45 44 43 42 41
BUFFER
CLOCK
ALWAYS VDD 4Fsc
C-VCC 0
Q107
320FH 5V
SLD VSS
VX01 B PLL
VCO
KTA1504S_Y_RTK
1.6
P R
TIMMING OUT
OUT 1.6
REC PB REC
0 0 2.2
APC APC AFC DRIVER AUTO-BIAS
VSS
3.2
CCD CLAMP
BEFORE
IN
R P BGA
C133
BGA
2.5
AFTER
CNC
1 F C137
BGA
R P VCA
3.2
PB VCA
AMP
C134 50V 1
3.58M
BPF2 3.3
CLAMP
B.D
50V 1 KA
Main B-UP
CONV AMP P 2.6
VCP
3.58M
ACC
2.6
AMP BPF1 1
P P R
2
3
4.1
ACC PB-C
REG
4.21M
DET VIDEO 4V
BPF
YNR/COMB AGC
2.3
Sub
P R R
CONV C135
P
1/2
R BAL 2.3
DETAIL N.L.
CLAMP
PB-C FBC TC1
ENH DEEM
P
50V 0.22 YK
Y-LPF 2.1
R
NL NL Y/C
NC1 P
EMPHA EMPHA
R MIX
R C136 50V
P
1.6
AGC
FM
TC2
MOD 35V 22 YK
R-EQ 3.6
NORMAL
QV/QH 6DB
TEST
DOUBBLE FM SUB
LIM DEM LPF
SYNC 4.1
SEP
LINE
LPF REC
AMP MAIN
FM-EQ
5.0
DE-EM V.SYNC
SEP
FM PB
4.4
VREF S-EQ
P R FM EQ P R P R
AGC Y-VCC
VHS SOPB C132
REC
MUTE 3.2
AMP
50V 1 KA
AUTO PHASE PHASE FM MAIN 2.1
B
BIAS EQ EQ EMPHA S
AGC
Y-GND
fo-ADJ Q-ADJ FIL DET
FIL
8 9 10 11 12 13 14 15 16 17 18 19 20
2.3 0.8 4.8 1.1 1.1 1.4 2.0 0 2.6 2.6 0.2 2.8
NC
R114
20K
C122
B
19
V.ENV
18
TP101
NC
CAUTION: DIGITAL TRANSISTOR
D E
2-3 2-4
The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only.
When replacing the parts , refer to the Parts List.
F G
FSC
L103
4FSC
5.6uH
R124
82K
R122
100K
MH7
C138
50V 1 YK
TU/REAR_V_IN
C139
0.1 F
FRONT_V_IN
R143
1K
C140
R141
DVD_V_OUT[DAC_D]
4.7 KANP 1K
16
Y/C_VIDEO_OUT
C.SYNC
DUMMY_V.SYNC
W809
P.CON+5V
R121
1K
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
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
1
PCB010
VMC300
H