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CIRCUIT DIAGRAM
[SYSCON PCB CHROMA/IF SCHEMATIC DIAGRAM]
A
B
FROM/TO MICON
IIC_OFF
DEGAUSS_H
8
POWER_FAIL[DC]
VD
OSD_R
OSD_G
OSD_B
OSD_BLK
SDA
SCL
AFT_M
VCR_POWER_H
HD
TV_POWER_H
X_RAY_TEST
7
TEST POINT
6
CP602_1
8283_0712_00_000
7
INTELLGENT MONI
6
B.OUT
5
AGC M
4
IIC OFF
3
SDA
2
SCL
1
GND
13
12
SEP.
AGC
1
1.8
5
VR6001_1
NC
4.7K
2
W955
(R6036)
0
W938
3
2.5
SCL
4
2.5
SDA
5
2.5
NC
6
0
+5V
7
4.9
C613
NC
8
0
0.1 B
+30V
9
29.3
C612
4
NC
10
S811X
6.3V
220
2.0
IF
11
0
15
14
C602_1
0.1 F
FROM/TO CHASSIS
C601
PRI.AMP
CD4205
CH01812A
7.2
50V KA
1
Q612
1
GND
2SC3000
1.6
0.8
3
FROM/TO POWER
AT+30V
GND
P.CON+5V[TU1]
P.CON+5V[CHROMA]
P.CON+8V
8.7VREF
5.7VREF[PCON]
2
5.7VREF[AT]
AT+13V
P.CON+5V
NOTE:
THE RESISTOR MARKED F IS FUSE RESISTOR.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.
1
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A
B
C
CHROMA/IF SCHEMATIC DIAGRAM
L608
L620
L618
C676
100uH
47uH
33uH
82P CH
26
TU1_VIDEO
2.7
R620
2.0
CF604
BUFFER
12K
EFCT4R5MW5
0
Q601
2SA1037AK
CF603
EFCT4R5YS5A
B.OUT
2.0
AGC_M
48
R608
2.3
10K
R611
2.4
10K
C668_1
C625
2.3
TU1_AUDIO_A
AUDIO BYPASS
50V
22
KA
1 F
C623_1
3.0
EXT AUDIO IN
NC
68P CH
29
2.0
L615
FM DIRECT OUT
R618
10M
100uH
3.2
VIF VCO F/B
0607
D601 1SS133
D602
MTZJ8.2C
C632
R607
50V
2.2
KA
9.0
VREG Vcc
C624
220 1/2W
C627
R609
330
16V
47
KA
3.0
12.4
VIF APC FILTER
1 B
C618
5P CH
3.1
2.2
VIF VIDEO OUT
S817X_1
2.5
BUFFER
S817Y
Q607
0
VIF GND
S824X_1
2SC2412K
C621
0
S824Y
0.01 B
R610
AFT_M
2.4
AFT OUT
100 1/4W
C626
R614
180K
2.9
QIF IN
0.1 B
R601
AGC_M
2.3
RF AGC OUT
2.2K
C622
2.7
RF AGC FILTER
0.22 B
SAW FILTER
1.5
CF601
C634
YK
SAF45MFY220ZR
0.01 B
1
IN
IN
G
OUT
OUT
1.5
1
2
3
4
5
CHROMA
IC601
M61203CFP
C674_1
0.1 B
C675
0.1 B
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
No.51768
TV-20F242
TV-20F242
D
E
(SYSCON PCB)
L610
100uH
0607
27
C648
0.1 M
W949
28
C656
D607
1 B
1SS133
NC
NC
2.0
8.2
8.2
8.2
4.0
4.8
5.5
2.8
5.6
0
0
3.2
3.2
2.0
8.8
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
X602
3.3
100CT3R505
3.0
3.579545MHz
0
R IN
4.7
V PULSE OUT
0
G IN
46 SW REG CONT
34 EXT C in
47 LIMITER IN
33 8.7V REG OUT
0.1
FAST BLK
48 IF AGC
32 X'TAL
49 QIF OUT
31 ACL/ABCL
7.3
SPOT KILLER
50 AUDIO OUT
5.0
fsc OUT
4.9
VIDEO CHROMA Vcc
4.9
V RAMP CAP
4.8
V RAMP FEEDBACK
2.0
64 VIF IN
17 V OUT
B IN
1 VIF IN
16 B OUT
0
W876
STRAT UP Vcc
8.5
8.5
3.8
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
5.0
5.0
2.6
3.6
0.8
2.5
0
0
3.6
3.4
3.9
4.8
2.5
2.5
2.4
D616
D618
1SS133
D617
1SS133
1SS133
CAUTION:
SINCE THESE PARTS MARKED BY
ARE
ATTENTION:
LES PIECES REPAREES PAR UN
CRITICAL FOR SAFETY,USE ONES
DANGEREUSES AN POINT DE VUE SECURITE
DESCRIBED IN PARTS LIST ONLY
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D
E
2-13
2-14
F
G
FROM/TO DIGITAL COMB FILTER
CP604
IMSA-9130B-06
P.CON+5V
P.CON+5V
FSC
GND
C663
C IN
390P CH
Y IN
MONITOR_V
MONITOR V.OUT
FROM/TO HIFI
TU1_AUDIO_A
FROM/TO Y/C/A/H.AMP
TU1_VIDEO
MONITOR_V
FROM/TO SOUND AMP
SOUND+B
R638
C661
SOUND_GND
6.8K
0.01 B
R646
15K
C665_1
16V
10
KANP
R642
D605
ACL
6.8K
11ES1N
R647
2.2K
R643
VD
47K
R648
2.2K
OSD_BLK
SOUND+B
C658
R652
SOUND_GND
H_OUT
0.22 B
4.7K
C644
0.022 B
W804
D614
V_OUT
ACL
MTZJ6.8B
H_PLUSE
C664
TV_POWER_H
C615
1 MMTS
POWER_FAIL[DC]
R641 27K
0.001 CH
X_RAY_TEST
C630
0.022 B
VCR_POWER_H
DEGAUSS_H
D615
R649 2.2K
MTZJ6.8B
V_OUT
W809
HD
C671
220P CH
C669
0.1 B
OSD_B
OSD_G
OSD_R
W825
G.OUT
R.OUT
B.OUT
R.SIGNAL
G.SIGNAL
B.SIGNAL
DEFLECTION SIGNAL
ETANT
AUDIO SIGNAL(REC)
TUNER VIDEO SIGNAL
F
G
No.51768
H
(CY901)
8
1
2
3
4
5
6
7
6
5
FROM/TO DEFLECTION
(CP820)
CD601_1 CH2D068A
SOUND+B
1
4
SOUND GND
2
H.OUT
3
GND
4
V.FEEDBACK
5
V.OUT
6
ACL
7
H.PLUSE
8
TV POWER H
9
POWER FAIL
10
X-RAY TEST
11
VCR POWER H
12
DEGAUSS H
13
3
L617
HF57T18.5*10*10
TO CRT
2
CD850
(CP805)
CH25086A
GND
5
CUT OFF
4
G.OUT
3
R.OUT
2
B.OUT
1
PCB010
VMX188
1
H
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