Toshiba 14N21FS Manuale di servizio - Pagina 23
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A
B
8
7
FROM POWER
6
P.CON+8V
GND
P.CON+5V
5
4
FROM/TO SOUND AMP
AUDIO_OUT
FRONT_VIDEO_IN
SW_AUDIO_IN
SCART_AUDIO
FROM/TO MICON/TUNER
TU/RGB
3
IF
RF_AGC
H_CONT
SDA
SCL
HD
PROTECT
2
1
A
B
G-3
C
CHROMA/SIF/VIF/21PIN SCHEMATIC DIAGRAM
CF202
TSF5372P
IN
GNDOUTOUT
1
2
3
4
7.0
L206
C204
VIF PRE.AMP
W829
Q201
1.5
0.27uH
0.001 B
KTC3881S-RTK
0.8
C212
0.01 B
2.7
2.8
4.8
3.1
2.7
2.5
2.5
1
2
3
4
5
6
7
8
56
55
54
53
52
51
50
49
1.5
4.5
0
4.9
5.0
5.0
4.2
11
C617_1
22 16V KA
H.CONT
5.1
Q603
0
2SC2412K
0.4
R602
R606
100
100
8.3
PROTECT
Q604
KRA102SRTK
8.3
560 1/2W
0
8.3
C631
PROTECT
Q602
0
50V
33
YK
2SC2412K
0
R620
270 1/4W
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
(MAIN PCB)
5.0
3.9
SIF BUFFER
Q204
7
3.2
2SC2412K
C629
R208
1K
16V
10
KA
W822
L204
7.9
18uH
2.9
BUFFER
Q202
2SC2412K
2.28
R217
S101X
8
1K
NC
VCO COIL
L207
3700005
NC
C201
3P CH
4.5
2.0
0
3.6
4.9
3.8
2.4
3.8
3.9
7.8
4.1
0
3.2
2.8
3.2
9
10
11
12
13
14
15
16
17
18
19
20
21
22
48
47
46
45
44
43
42
41
40
39
38
37
36
35
5.2
2.0
4.6
5.4
7.8
5.0
0
2.8
2.4
2.2
0
0.2
0
4.1
4.2
13
12
D604
11E1-EIC
17
R647
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
D
E
F
G
0
0
RGB SW
Q601
S101Y
0
2SC2412K
9
10
R702
3.3K
R706
1.7
1.7
3.4
3.6
3.4
0
23
24
25
26
27
28
1K 1/4W
R707
1K 1/4W
R708
1K
34
33
32
31
30
29
4.8
4.5
1.7
1.7
2.6
4.4
14
15
16
BUFFER
4.0
Q605
2SC2412K
4.6
8.3
CAUTION: DIGITAL TRANSISTOR
F
G
H
8
7
6
21PIN
J701
0350_9982_05
L702
R714
10uH
75
5
R703
10K 1/4W
NC
R715
NC
R713
75
75
R221
4
75
R709
D709
75
MTZJ5.1B
FROM/TO DEFLECTION/CRT
B.OUT
G.OUT
R.OUT
H_OUT
3
VAMP
ABCL
V_OUT
AFC
FROM/TO MICON/TUNER
V_OUT
VIDEO_OUT
CVBS_TXT
OSD_B
OSD_G
2
OSD_R
OSD_FB
FOR_VCR
PCB010
TMB537
1
H
G-4