JVC TV-13142 Service Manual page 62

[ SYSCON PWB(Y/C/AUDIO/CCD/HEAD AMP) CIRCUIT DIAGRAM ]
A B
8
7
FROM/TO POWER
P.CON+5V
GND
W858
NC
6
FROM/TO CYL/MOTOR
CP4001
TOC-C09X-A1
9 GND
8 GND
7 GND
6 SP-CH1 (R)
5 SP COM
5
4 SP-CH2 (L)
3 EP/LP-CH1 (R)
2 EP/LP COM
1 EP/LP-CH2 (L) L4001
P.CON+5V
22uH
0305
4
TU_AUDIO
R4004
P.CON+5V
15 1/4W
FRONT_AUDIO
3
FROM/TO A/C HEAD
P.CON+5V
CP4002 5.2
IMSA-9604S-06Z14
V.REC_ST_H 0
Q4003
6 AUDIO PB
KRA103RTK
5 AUDIO REC 5.3
CTL+
4 CTL+
CTL-
3 CTL-
R4001
2 AE HEAD(-)
560
1 AE HEAD(+)
2
0
AUDIO
R4002
5
PB SW
0.7
Q4001
10K
KTC3198
0
0
AUDIO
PB SW R4003
FROM/TO F/E HEAD
Q4002
0.7
10K
CP4003 TMC-T02X-E1 KTC3198
0
GND
2 FE HEAD(GND)
HOT
1 FE HEAD(HOT)
1
CAUTION: DIGITAL TRANSISTOR
A B
C
Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM
0.5 2.8 0
60 59 58 57
COMP OUT
C4016
2.2 ENV AUDIO C-ROT
KILL DET MUTE RF-SW
DET HA SW IN
0.068 B
0
HA
GND
C4019
4.0
CHROMA
DET
0.047 F
C4015
1.8
ACC
DET
0.047 F
0.7
P
0.7
R
H
0.7
P L
5.0
HA VCC
R4064
1.7
6.8K
R4012_1
1.8
820
0
HA
PRE GND
2.0
H
P
L
2.0
R
2.0
P
0
A-GND
R4052
R4007 C4020
8.2K 2.2
1
ALC
2
39K 1/4W 0.1 F
3
4.9
A-VCC
R4006 ALC
2.3
DET
NC
47K 1/4W
C4023_1
0
EQ
6.3V 22 MH7
C4012_1 R4053 C4021
2.0 AMP
SP,LP
Vref
6.3V 22 MH7 6.8K 0.1 F
2.3V
Y/C/A/CCD/H.AMP 1 2 3 4
2.2 2.2 2.3 2.2
IC4001
LA71201M-MPB
SW
COIL,BIAS OSC
T4001
R4019
1626009 BIAS CTL
Q4005
6 1 330K
2SA1015Y
L4003 C4025_1
C4029
5 2
0 5.2
100uH
6.3V 220 KA
4 3 0.01 F
0305
5.2
R4011
0
BIAS OSC
22K
Q4006
0
2SC2120Y
0
C4010_1
6.3V 47 MH7
NOTE:
THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
C
No.51810
TV-13142 TV-13142
TV-13142W TV-13142W
D E
(SYSCON PCB)
BUFFER
Q4012
2SC2412K
5.0
R4041
4.0
1.8K
3.4
C4058_1
W818
6.3V 47 MH7
C4059
0.1 F
R4038 C4061
2
680K 0.01 F
NC
0 0 4.8 4.8 4.8 5.0 1.9 2.6 4.0 3.3 3.3 2.3 5.0 5.0 0 2.2 0.8
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
ALWAYS VDD 4Fsc CLOCK
C-GND C-VCC 0
SERAIL
320FH 5V
SLD VSS
VX01 B PLL
DECODER VCO
1.7
P R
TIMMING OUT
OUT
0
REC PB REC
APC APC AFC AUTO-BIAS
DRIVER
VSS
3.0
CCD CLAMP
BEFORE
IN
R P BGA
BGA 2.8
AFTER
CNC
BGA
R P VCA 3.1
PB VCA
AMP
P R
3.58M
3.1
BPF2
CLAMP
B.D
Main B-UP
C-LPF
CONV 2.6
AMP P
VCP
ACC 3.58M 2.0
AMP BPF1 1
P P R
2
+ 3
4.0
PB-C
ACC REG
4.21M
DET 4V
VIDEO
BPF
AGC
YNR/COMB
2.0
Sub
NC
R R
CONV P
P
1/2 2.3
R BAL
DETAIL N.L.
CLAMP
PB-C FBC TC1
ENH DEEM
P
Y-LPF 2.3
R
NL NL Y/C
NC1
EMPHA P
EMPHA R MIX
R
P 1.6 R4060
AGC
FM
TC2
MOD
2.9
R-EQ
NORMAL QV/QH 6DB
TEST
DOUBBLE
FM SUB
LIM DEM LPF
3.6
SYNC
SEP
R LINE
LPF REC
P AMP MAIN
FM-EQ 0
DE-EM V.SYNC
SEP
FM PB 4.9
S-EQ
VREF
P R AGC FM EQ P R P R Y-VCC
VHS SOPB
REC
MUTE 2.8
PB,EE AMP
PB,EE
REC:LP<EP
1.8
PHASE PHASE MAIN
PB:EP AUTO FM
EQ EQ S B
BIAS AGC EMPHA
Y-GND
fo-ADJ Q-ADJ FIL FIL DET
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
2.2 2.5 2.3 2.2 2.3 2.4 5.0 1.0 1.0 1.7 1.4 0 0 1.5 0.1 2.2
NC
3
R4021
NC
22K
V.ENV
C4033
TP4001
820P B
4
BUFFER
Q4011
2SC2412K
4.9
R4037
0.6 W837
R4056
R4059
10M 390
0
10M
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
2-13 2-14
F G
BUFFER
Q4010
2SA1037AK
1.7
0 2.3
R4034
68K
C4048_1 R4035
16V 10 MH7 100K
C4052_1
50V 4.7 MH7
C4049_1
R4062 3.3M
16V 10 MH7
C4053
C4057
50V 4.7 KA TU_VIDEO
50V KA 1
C4054
0.1 F
C4047_1
FRONT_VIDEO
D4001 MTZJ6.8B
16V 10 KA
C4050
R4048 L4009
50V 0.22 KA P.CON+5V
68 1/4W 100uH
0305
1.5M
C4051_1 1
R4032 R1025
Y/C_VIDEO
10V 33 MH7
100 1/4W 100
SD_VIDEO
DUMMY_V.SYNC
L4004
P.CON+5V
FROM/TO CHROMA/IF
22uH
C4046 5.0
0305
BUFFER
0
50V 3.3 KA
Q4009
2SA1037AK
5.0
R4026 C4043
SD_SYNC
39K 0.1 F
2.8
R4029
0.7
47K 1/4W
0
SYNC IN
Q4007
2SC2412K
F G
No.51810
H
8
7
FROM/TO I/O
FRONT_AUDIO
FRONT_VIDEO
Y/C_AUDIO
Y/C_VIDEO
6
FROM/TO MICON
Y/C_CLK
Y/C_DATA
Y/C_CS
V.REC_ST_H
C_ROTARY
VCR_A_MUTE
DUMMY_V.SYNC
CTL-
CTL+
H.AMP_SW1
COMP
5
ENV_DET
H.SW
SD_VIDEO
SD_SYNC
4
TU_VIDEO
TU_AUDIO
SD_VIDEO
3
Y/C_AUDIO
VD
PLAYBACK COLOR SIGNAL
2
PLAYBACK LUMINANCE SIGNAL
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
RECORD LUMINANCE SIGNAL
RECORD COLOR SIGNAL
PCB800
VMA213
1
H