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A
B
8
FROM/TO AV
C_V_OUT_SW
Y_V_OUT_SW
TUNER_VIDEO
TUNER_AUDIO_L
TUNER_AUDIO_R
5
7
FROM AV
1
TV BUFFER
2
NC
Q202
TV BUFFER
CD701B
3
2SC2412K
Q203
CH243001
4
NC
2SA1037AK
L204
2.4
R210
15uH
3.1
68
0
CF203
6
TPSRA4M50C00-A0
TO COMB FILTER
FSC_OUT
5
S802X
S802Y
FROM POWER
4
GND
P.CON+9V
P.CON+5V
AT+5V
FROM/TO MICON/TUNER
AFT_OUT
AGC
C230
3
IF
0.01 B
TUNER_AUDIO_R
TUNER_AUDIO_L
2
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.
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
A
B
C
CHROMA/IF SCHEMATIC DIAGRAM
7
9.0
3.7
AUDIO
3.1
BUFFER
C213
Q201
2SC2412K
10V
100
YK
C212
R205
9.0
0.01 B
4.1
100
6
3.5
0
4.1
2.4
9.0
2.4
3.7
2.8
3.6
2.4
2.5
1.9
56
55
54
53
52
51
50
49
48
47
46
1
2
3
4
5
6
7
8
9
10
11
3.0
5.0
0
0
0
0.1
2.7
3.2
2.1
2.0
2.9
NC
12
W839
C220
0.0022 B
C221_1
W805
6.2
0.01 B
PRE AMP
1.3
Q204
KTC3881S-RTK
1
2
3
4
0.6
IN
GNDOUTOUT
CF202 TSF5229P3
C935
50V
4.7
KA
CAUTION: DIGITAL TRANSISTOR
C
D
E
(MAIN PCB)
9
10
C615
R608
16V
100
270
YK
1/4W
8
NC
2.4
2.5
2.5
2.5
2.7
1.5
0
6.0
4.9
9.0
7.1
4.0
2.1
0
45
44
43
42
41
40
39
38
37
36
35
34
33
32
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1.6
5.0
4.8
4.8
4.8
0
2.2
0.1
2.2
2.2
2.2
9.0
5.0
5.0
C602
0.1 B
13
14
15
NC
NC
NC
2.3
2.3
2.3
2.3
0
5.0
5.0
0
3.7
3.6
2.6
3.7
24
23
22
21
20
19
18
17
16
15
14
13
GND
Det
VCA
Det
OUT SW
DAC
ZAP
IIC Decoder
St.PLL
AGC
Pilot
Input
SAP
Switch
L-R Filter
L-R Demod
Cancel
Matrix
De-Emph
(L-R)/SAP
Pilot
Filter
Filter
Filter
75us
L+R Filter
L+R Demod
Stereo
Noise
SAP
Filter
Cancel
SAPout
Demod
Offset
fH.2fH Trap Filter
Filter
Filter
SAP
Wide Band
Spectral
Expand
Cancel
Wide Band
RMS Det
Expand
RMS Det
Det
Offset
dbx De-Emph
Wide Band
Spectral
Spectral
Noise
2.3
Vcc
1
2
3
4
5
6
7
8
9
10
11
12
0
2.3
2.3
2.2
2.2
0.4
5.1
2.4
2.4
0.4
2.3
3.4
NC
NC
L901
22uH
D
E
F
G
11
W813
W808
W802
NC
6.0
3.4
2.0
31
30
29
26
27
28
1.1
9.0
6.0
3.6
R635
2.0
V.BLK
Q604
33K 1/4W
2SC2412K
0
PROTECT
Q601
KRA102SRTK
10.2
9.0
8.9
8.9
PROTECT
R638
0
Q603
2SC2412K
1K
0
TUNER AUDIO SIGNAL
TUNER VIDEO SIGNAL
LUMINANCE SIGNAL
COLOR SIGNAL
DEFLECTION SIGNAL
R.SIGNAL
G.SIGNAL
B.SIGNAL
F
G
H
8
FROM/TO MICON/TUNER
SYNC_OUT
SDA
SCL
OSD_B
7
OSD_G
OSD_R
OSD_BLK
PROTECT
6
5
4
FROM/TO DEFLECTION
V.OUT2
H.OUT
ABCL
B.OUT
G.OUT
3
R.OUT
AFC
V.OUT1
2
PCB010
TMA530
1
H
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