AIWA-VX-G142 Datasheet, PDF (4/18 Pages) List of Unclassifed Manufacturers – AIWA VX-G142 OPERATION 1 SCHEMATIC DIARGAM

A
8
B
C
NC
NC NC
D
E
Y/C SCHEMATIC DIAGRAM
BUFFER
Q4007 ^4.9
2SC2412K
2.3
1.6
R4013
1.5K
R4015
100
(SYSCON PCB)
L4008 C4026
4.1
0
0
56uH 100P CH
AMP
Q4009
2SC2412K
R4027
1.2K
F
2.2
BUFFER
Q4012
1.6
2SA1037AK
0
G
C4094
270P CH
2.3
4.9
BUFFER
Q4015
1.6 ^2SC2412K
H
8
7
ENV
TP4002
SW
Q4021
DTC144EKA
3.2
7
0.1
FROM/TO POWER/I/O
GND
P.CON+5V[B]
W961
W968
0
0
3.2
SW
0 Q4020
1
DTC144EKA
P.CON+9V
VCR_VIDEO_OUT
AT+5V
L4001
6
FROM TUNER/AUDIO
33uH
SWD_VIDEO_IN
0607
TU.VIDEO[B]
(V.IN-GND)
(V.OUT-GND)
(AE/FE-HEAD)
GND
GND
GND
AE/FE_HEAD
W962
NC
R4076
15K
R4021
2
3
4
5
NC
NC
4.7K
NC
NC
NC
2.7 1.8 1.9 0.2 2.3 2.3 1.8 2.7 1.4 0 3.1 4.9 3.6 3.7 0 2.1 3.9 1.8 2.8 2.2 2.8 2.3 4.7 2.9 2.8 0.9 3.1
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
VCC1
GND
OSD
PV/PH
R
P
MAIN
EMPH
EQ
FM
REC
AGC
FM MOD
JUDGE
IIC
PAL
ENT
NTSC
R
APC
VXO
/XO
B-ID
PAL
P
PB C
LPF
6
R
P
FM
DEMOD
PB FM EQ
INT
VCO
SUB CONV.
ACC
RP
RP
NC
BURST
AP CONT.
EMPH./
FROM/TO MICON
SDA
5
SCL
DV_SYNC[T]
DV_SYNC
AV-H
COLOR_SYSTEM
4.9
R4001 _3.1
1K
2.4
AMP
Q4016
2SC2412K
3.0
BUFFER
Q4001
2SC2412K
R4003
1.8K
BUFFER
Q4004
2SC2412K
4.9
2.4
1.8
BUFFER
Q4006
2SC2412K
BUFFER
4.9
Q4005
2.4
2SA1037AK _R4009
2.4
1.8
1.8
0
1K
C4073
0.001 CH
P
LPF
MAIN
R
AGC
MAIN
SYNC
BPF
ACC
Y-COMB
SEP.
PULSE
NT
GENE
NTSC
DEEMPH
MAIN CONV.
N
DOC
ON PAL PAL
HD
PLL
MESECAM
JUDGE
RP
REC C
LPF
VCC3
VCC2
54 53 52 51 50 49 48 47 46 45 44 43 42 41
4.9 2.8 2.5 2.8 3.3 1.5 2.8 3.6 3.4 2.6 3.4 2.5 0.5
NC NC
NC
40 39 38 37 36 35 34 33 32 31 30 29 28
0.9 1.9 2.3 2.1 3.0 5.0 2.6 3.0 1.8 1.7 2.5 2.3 5.0
NC NC
7
6
5
FROM/TO SYSCON
V.REC_ST-H
1.6
0.9
2.4
2.2
ENV.DET
0
H.SW
4
DV_SYNC[S]
C4093
TRICK_PB-H
0
H.AMP_SW
0
33P CH
SW
SW
4
Q4018
DTC124EKA
SYNC
Q4024
GND
NTSC-H
1.7 ^DTC124EKA
0
0 _TRICK
PB SW
W802
R4071
R4070 ^C4090
Q4019
1.7 ^DTC143TK
1K
1K 10V 47 KS
MUTE SW
0.8
Q4023
DTC143TK
0
1.4
BUFFER
5.0
Q4010
0
2.1 ^2SA1037AK
3
3
W874
R4029
680
R4064
R4047
82K
C4052 R4046
330
0.01 B
68
2
TO CHROMA
EE/VV_VIDEO_OUT
EE/VV_VIDEO_OUT
P.CON+9V
R4061
68
BUFFER
Q4017
2SA1037AK
2.8
2.1
0
L4002
1mH
L4004
1mH
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK (PAL MODE)
1
CAUTION: SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CAUTION: DIGITAL TRANSISTOR
PCB010
VM7125
BUFFER
Q4011
2SA1037AK _2.7
2.1
0
0 5.0 0 5.0 0
2.8 2.5 2.2
1
2
3
4
5
6
7
8
CCD
INPUT
PAL/4.43NT
/SECAM
BIAS
+ CCD
LIMITER
SHAPER
COMP VCO
VOB
S/N
VOB
DC FB 1/3
S/N
CLOCK
DRIVER _VGG
PAL/4.43NT
/SECAM
S/N
16 15 14 13 12 11 10 9
3.2 1.8 2.5 0 10.6 2.4 1.9 3.3
NC
4.9
3.2
BUFFER
2.5
Q4013
2SC2412K
C4051_1
0.1 F
A
B
C
D
E
F
G
J-10
2
RECORD LUMINANCE SIGNAL
PLAYBACK LUMINANCE SIGNAL
RECORD COLOR SIGNAL
PLAYBACK COLOR SIGNAL
TUNER VIDEO SIGNAL
1
H