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[ AV PWB(VIF/SIF/CHROMA) CIRCUIT DIAGRAM ]
A
B
8
7
27
R226
1K
C227
FROM/TO POWER
16V
47
YK
DVD_GND
R204
EW_OUT
3.3K
R205
V.OUT
10K
AFC
CLAMP
H.OUT
Q202
1.4
6
C226
2SC2412K
ACL
2.0
0.1 B
W818
DVD_Y
9.0
DVD_C
GND
R228
CHROMA+5V
0
P.CON+9V
VD
TO CRT
CP8006 51048-0500
5
5
CLAMP
B.OUT
4
B OUT
G.OUT
3
G OUT
R.OUT
2
R OUT
1
GND
CD850
2Y056801
FROM/TO AV SW
L803
W5T29X7.5X19
4
TU_VIDEO
FROM/TO STEREO
TU_AUDIO
FROM/TO COMB FILTER
FSC
COMB_C_OUT
3.9
COMB_Y_OUT
3
FROM/TO MICON/TUNER
TV/DVD
OSD_Y
OSD_B
OSD_G
OSD_R
SDA
SCL
SYNC_VIDEO
2
POWER_ON_H
TUNER_IF
AFT
TUNER_AGC
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
1
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CAUTION:
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
C
VIF/SIF/CHROMA SCHEMATIC DIAGRAM
L203
100uH 0305
EXT AUDIO DRV.
Q204
2SC2412K
5.2
R220
3.5
100
2.9
28
T.V.BUF.
Q203
9.0
2SC2412K
W849
4.4
3.7
L201
R208
18uH
330
0
4.4
2.5
9.0
2.4
3.5
4.2
3.1
2.2
2.2
56
55
54
53
52
51
50
49
48
1
2
3
4
5
6
7
8
9
3.0
5.1
4.0
3.1
2.3
1.8
0
0
0.2
3.4
NC
L202
100uH 0305
L603
100uH 0305
BUFFER
Q604
2SC2412K
4.5
9.0
C208
0.01 B
0.7
6.2
PRE AMP
L204
C202
1.3
Q205
1
2
3
4
5
2SC2814
0.22uH
0.01
B
IN
IN
G
OUT
OUT
0.6
CF203
SAF45MFY220ZR
SINCE THESE PARTS MARKED BY
ARE
ATTENTION:
LES PIECES REPAREES PAR UN
ETANT
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
C
No.51821
AV-20FD22
AV-20FD22
D
E
(AV PCB)
L601
100uH
0305
34
35
29
21
NC
1.7
2.4
2.4
2.4
2.3
2.5
1.3
0
5.0
4.1
8.9
6.9
1.8
1.9
0
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
3.0
1.8
5.0
3.3
2.9
2.9
0
3.2
0
2.3
2.3
2.3
9.0
4.3
4.0
NC
30
R612
2.7K
R613
2.7K
R614
2.7K
D606
33
MTZJ6.8B
32
D607
MTZJ6.8B
31
D608
MTZJ6.8B
D603
SW
1SS133
0
Q603
2SC2412K
D605
0
1SS133
D604
1SS133
PLAYBACK LUMINANCE SIGNAL
PLAYBACK COLOR SIGNAL
B.SIGNAL
G.SIGNAL
R.SIGNAL
D
E
2-23
2-24
F
G
36
3.3
5.2
3.3
4.1
2.6
10
9
8
7
6
VCC
CH-2
CH-1
GND
1
2
3
4
5
0
3.3
3.3
4.1
2.6
0.8
3.2
2.7
31
30
29
R622
1K
26
27
28
1.0
9.0
5.8
R627
D612
82K
11ES1-EIC
R631
R629
100
100
R640
W871
1.5M
0
VD SW
R639
Q608
2SC2412K
1.1
33K
4.8
TUNER VIDEO SIGNAL
RECORD COLOR SIGNAL
TUNER AUDIO SIGNAL
RECORD LUMINANCE SIGNAL
F
G
No.51821
H
8
7
6
SWD_Y.OUT
5
TV/DVD
COMB_Y_OUT
DVD_Y
4
ACL
SDA
SCL
3
VD
OSD_B
2
OSD_G
OSD_R
OSD_Y
B.OUT
G.OUT
PCB350
R.OUT
TMA503
1
H
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