Toshiba 15V31B Instrukcja serwisowa - Strona 22
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A
B
8
L206
C204
0.27uH
0.001 B
7
6
5
W855
NC
4
3
2
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
A
B
G-3
C
D
IF/CHROMA SCHEMATIC DIAGRAM
4.0
R206
7.0
VIF PRE.AMP
1K
Q201
1.5
SAW FILTER
KTC3881S-RTK
0.9
CF202_1
J1951M
IN
IN
G
OUT
OUT
1
2
3
4
5
NC
NC
2.5
2.5
3.0
3.2
2.8
2.5
2.5
1.4
2.1
0
4.0
5.0
3.5
2.1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
56
55
54
53
52
51
50
49
48
47
46
45
44
43
1.9
4.0
0
5.1
4.9
4.9
4.1
0.7
0.9
5.7
5.6
8.0
4.4
0
22
D603
1SS133
D605
R626
MTZJ6.2B
23
10K 1/4W
24
H CONT
Q601
2SC2412K
8.2
R603
0
1K
0.4
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
C
D
E
(MAIN PCB)
5.1
SIF BUFFER
Q204
3.3
2SC2412K
L204
15uH
R217
1K
CF201
TPSRA6M00B00-A0
VCO
L202
3700005
14
13
12
NC
16
C201
17
18
3P CH
15
NC
3.9
3.9
8.0
3.7
0
3.2
2.7
3.2
1.7
1.9
2.5
2.5
2.5
0
15
16
17
18
19
20
21
22
23
24
25
26
27
28
42
41
40
39
38
37
36
35
34
33
32
31
30
29
2.4
1.5
1.5
2.9
5.0
0
4.0
4.0
4.0
3.8
2.3
2.3
2.3
4.5
4.5
19
20
21
D609 SB140-EIC
W839
D604
11E1-EIC
S812Y
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
E
F
G
W823
11
C621
16V
10
KA
8.2
BUFFER
Q609
2SC2412K
3.9
F
G
H
8
TO SOUND AMP
MONO_A_IN
7
GND
FROM/TO 21PIN/AV SW
MONO_A_OUT1
TUNER_V_OUT
EXT_A_IN
SCART_V_IN1
SCART_V_IN2/Y
21_B
21_G
6
21_R
21_Y
FROM POWER
P.CON+5V
P.CON+8V
GND
FROM/TO DEFLECTION/CRT
5
G.OUT
R.OUT
B.OUT
VAMP
H_OUT
AFC
ABCL
V_OUT
4
FROM/TO MICON/TUNER
CVBS_TXT
OSD_B
OSD_G
OSD_R
OSD_FB
PROTECT
H_CONT
V_OUT
SCL
SDA
RF_AGC
3
IF
2
PCB010
TMC572
1
H
G-4