Chroma/If Schematic Diagram - Aiwa VX-G143 Service Manual

A B
FROM/TO MICON
SD-L/AFC-OFF-H
VV-H
8
TEXT_Y
VCR_POWER_H
TV_POWER_H
HD
VD
R.OUT
G.OUT
B.OUT
POWER_FAIL[DC]
DEGAUSS_H
7
TUNER_AGC
SDA
SCL
IIC_OFF
AFT_M
TEST POINT
CP603 8283_0912_00_000
9 P.CON+9V
8 AUDIO_OUT
R605
7 VIDEO_OUT
75 1/4W
6 AFT
6
5 AGC
4 IIC_OFF CD652
CH1408A
3 SDA
2
SCL
1 GND
13 12
AGC 1
0.2
2 NC
5 7.2
3 NC
1.3
SCL 4
4.8
SDA 5
4.8
6 NC
L605
0.1
P.CON+5V_B
+5V 7
5.0
100uH 0607
8
NC
0.2
+30V 9
29.9
10 NC
0
4
IF 11
0 R603
15 14
75
FILTER
CERAMIC TRAP
CF602
MKT41.5MA110P
C602
L002
S802X S802Y 0.01 B
ESD-R-30SD
7.2
C606
1.6
AMP
3
Q601
0.022 B
2SC3000
0.8
FROM/TO POWER
C655
AT+30V
0.1 F
P.CON+9V
P.CON+5V_B
GND
AT+5.6V
P.CON+5V
2
FROM/TO T'TEXT
TEXT_B
TEXT_G
TEXT_R
TEXT_Y
1
NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.
A B
C

CHROMA/IF SCHEMATIC DIAGRAM

P.CON+5V_B
SAW FILTER
CF601
P.CON+9V
SAF39.5MZL220ZL
Y/C_AUDIO
Y/C_VIDEO
2 3 4 5
L610
2.2uH
AUDIO_OUT
TU_AUDIO
W872
2.3 2.4 0 0 2.9
1 2 3 4 5
RF AGC
VOL
DC
IF AGC
SW VIF
DET
FM
DET
AMP
VIDEO
LIM
TRAP
BPF
AMP
VIDEO
SPLL
BPF
54 53 52 51 50
3.1 2.1 2.0 2.5 2.5
L603 C648
15uH 47P CH
C608
0.001 B
Y/C_AUDIO
COIL,VIDEO IFT
0
BUFFER 3.5
Q608
2SA933S
4.0
NOTE: NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
THE DC VOLTAGE AT EACH PART WAS
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
C
D E
(SYSCON PWB)
V.REF
Q602
2SC2412K
5.0
2.5
R647
1.6
120K
W841
R646
C682 100K
0.1 B
C658
6.3V
100
KA
C654
0.01 B
2.9 0 5.0 2.6 4.8 4.8 4.8 4.0 1.1 1.1 1.1 0 7.8 1.8
6 7 8 9 10 11 12 13 14 15 16 17 18 19
DRIVE/OUT-OFF
BUS ABL CLAMP
CONTRAST
OSD
OSD
BRIGHT MATRIX
CORING STRETCH
CONTRAST RGB
PEAKING BLACK
AFT
LINE SEP
DEMO
DELAY SYNC
ACC
CLAMP
SW
TRAP PAL
BAF SW
VCO
IDENT SW APC1 TINT
IF VIDEO
APC2
VCO
PLL
A2C CLMP CLMP KILLER
CW
49 48 47 46 45 44 43 42 41 40 39 38 37 36
4.3 4.3 3.7 3.5 2.5 2.6 4.9 2.7 0 2.0 3.5 2.8 3.9 0.9
NC
42
R621
1K
L608
360K043
5.0 2.6
W924
2.5 BUFFER
Q605
2SC2412K
CAUTION: SINCE THESE PARTS MARKED BY ARE ATTENTION:
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
I-11
F G
R.SIGNAL TUNER VIDEO SIGNAL
G.SIGNAL TUNER AUDIO SIGNAL
B.SIGNAL AUDIO SIGNAL(REC)
RECORD LUMINANCE SIGNAL AUDIO SIGNAL(PB)
RECORD COLOR SIGNAL
C663
R614 6.3V 47 KA
0
1K
0
1.8 0
5.0
H.OUT SW H.OUT SW
Q603 Q604
0 DTC114EKA DTC114EKA
R642
2.2K
D604
11ES1N
SD SW
C628
Q609
1 F
2SC2412K
1.7 1.8 0 2.1 2.6 5.1 2.6 0.4 0
R676
0 SD-L/AFC-OFF-H
20 21 22 23 24 25 26 27
4.7K
0
SD SW
D605
RAMP VCC OUT
B.AKB
Q610
VER HDR HDR
2SC2412K
1SS133
0
R677 D606
C/D SHIFTER 0
SW
VER PHASE
4.7K 1SS133
0
SEP
AFC2
VER
AFC1
CLAMP
R651 D608
C/D
COLOR
HDR
D609
3901/2W
SW
ALC
+
LPF D610
1/256
0
R678
2.8
VCO SPOT SW
DC ADS.
HDR Q612
100
1H DELAY DTC114TKA 0
CLAMP
FBP
35 34 33 32 31 30 29 28
0 0 0 8.5 4.9 0.9 0 1.1 M.POWEROFFMUTE_H
NC
R656
3.3K 1/4W
CAUTION: DIGITAL TRANSISTOR
LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F G
H
8
7
FROM/TO SOUND AMP
AUDIO_OUT
SOUND_GND
SOUND+B
FROM/TO DEFLECTION
C623
CP502 (CP820)
CH2D068A
330P CH
SOUND +B 1
W856
SOUND GND 2
H_OUT
6
H.OUT 3
GND 4
P.CON+5V_B
P.CON+5V 5
V_OUT
V.OUT 6
ACL 7
HD
H.PULSE 8
TV_POWER_H
TV POWER H 9
POWER_FAIL[DC]
POWER FAIL 10
VD
V.PULSE 11
VCR_POWER_H
VCR POWER H 12
DEGAUSS_H
DEGAUSS H 13
VV-H
TO CRT 5
EXT_H
CD850 (CP850)
CH25080A
GND 5
CUT OFF 4
G.OUT
G.OUT 3
R.OUT
R.OUT 2
B.OUT
B.OUT 1
1SS133
1SS133
1SS133
L600
ESD-R-30SD
D611
4
1SS133
CD653
C680
1 B
CH01408A
D612
FROM/TO Y/C/A/H.AMP
1SS133
TU_VIDEO
TU_AUDIO
Y/C_VIDEO
HD Y/C_AUDIO
FROM/TO 21PIN I/O
SHIELD_GND
EXT_H
3
2
PWB010
VMX193
1
H