Toshiba 20AS21 Service Manual page 20

Hide thumbs Also See for 20AS21:
Table of Contents

Advertisement

A
B
8
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE 4A 125V (F501)
FUSE.
ATTENTION:
POUR UNE PROTECTION CONTINUE LES RISQUES
D'INCEIE N'UTILISER QUE DES FUSIBLE DE MEME
4A 125V
TYPE 4A 125V (F501).
7
DEGAUSS COIL
L503
8R200029
CP502
A1561WV2-2P
1
W821
6
2
TH501
TP002
ZPB45BL3R0A
003P-2100
2
L501_1
1R5A102F20
5
4
NC
5
4A 125V
FH501
4A125V
FH502
EYF-52BC
EYF-52BC
F501
51MS040LCC
AC120V_60Hz
CD501_2
0R414903
4
BLACK
WHITE
C506
250V
0.0047
3
2
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
C
TV POWER SCHEMATIC DIAGRAM
R501
3.3 5W
1
3
C502
500V
0.001
B
SWITCHING
W823
Q501
144.0
D
2SK2662
KH
R505
C509
G
4.8
1.5K 1W
0.047 M
0.1
S
BUFFER
Q502
KTC3203_Y
4.8
0.1
0
HS501
763WSAA013
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.
C
D
E
(MAIN PCB)
D505
SB290S
C516
500V
470P
B
D510
W840
RU2AM-EIC
C517
2KV
470P
YR
D513
SB290S
T502
81290184
10.0
10
1.7
NC
8
11
0
NC
7
12
144.0
132.3
6
13
NC
0
5
14
10.3
0
4
15
6.6
11.3
3
16
10.3
NC
2
17
NC
18
C511_1
D518
50V
22
KA
1SS133
R520
11.5
10.5
150K 1/2W
0.1
9.5
FEED BACK
Q504
LTV-817M-VB
FEED BACK
9.5
SWITCHING
Q507
6.0
KTC3198
5.5
CAUTION:
SINCE THESE PARTS MARKED BY
ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D
E
F
G
R517
4.7
2W
R516
PROTECT DRIVE
1K
Q503
2SA1624
R514
135.0
0
22K 1/2W
135.0
R523
47K
R524_1
1.2
3W
R519
1.2K
ATTENTION:
LES PIECES REPAREES PAR UN
ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F
G
H
8
TO SOUND/AV
GND
SOUND+B
7
SOUND_GND
TO DEFLECTION/CRT
+B
UNREG+12V
6
GND
5
TO CHROMA
UNREG+12V
4
TO MICON/TUNER
D516
X-RAY
1SS133
3
2
PCB010
TMA511
1
H

Advertisement

Table of Contents
loading

Table of Contents