Toshiba 20AF46C Manuale di servizio - Pagina 30

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Toshiba 20AF46C Manuale di servizio
A
B
8
7
6
FROM/TO CHROMA
V_OUT
GND
P.CON+5V
H.OUT
H_SYNC
ABCL
5
R409_1
1K
FROM/TO POWER
GND
R434
+B
5.6 10W
W863
FBT+B
4
H+B
FROM/TO MICON
3
H_CTL
X-RAY
2
PCB010
CME017
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
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.
A
B
G-5
C
DEFLECTION SCHEMATIC DIAGRAM
1
16
R407
1.2K 1/4W
R414
27K
+-1%
C411
0.001
CH
19
H.OUT
Q405
2SC5885
115
20
W871
H.DRIVE
Q402
T401_1
0.1
0
KTC3227_Y
17.3
ETH14Y47AY
17.3
0
0.4
HS402
0
0
763WAAA072
26.3
0.1
R452_1
R410_1
D414
D415
180 1W
11E1-EIC
11E1-EIC
150
2W
R404
100
R436
R441
D411
W844
18K1/4W+-1%
15K +-1%
AU02A-EIC
TP005
TP006
X-RAY TEST
NOTE:
THE RESISTOR MARKED F IS FUSE RESISTOR.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.
C
D
E
(MAIN PCB)
V.OUTPUT IC
IC401
LA78040N
THERMAL PROTECTION
-
AMP
+
PUMP UP
VCC
GND
2
3
4
5
6
7
4.0
25.0
2.0
0
12.0
25.0
4.0
17
R417
39K
R402
21
68 1/2W
TP004
PROTECTOR TEST
TP003
D405
AU02A-EIC
R432
8.2K 1/2W
C415_1
500V
100P
SL
ATTENTION
:LES PIECES REPAREES PAR UN
ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D
E
F
G
FROM/TO DY
CP401
B06B-DVS-L_(LF)
18
6
6
5
5
L402_1
NC
4
4
3
3
ELH5L4113
NC
2
2
1
1
R439
1K 1W
C425_1
2KV
0.001
RR
FB401
FJN20A002_M
115
ANORD
COL
1
HV
180
E180
6
108.0
B+
2
105.0
AFC
9
FORCUS
HEA
F
0
TER
10
SCREEN
0
GND
S
8
0.2
0
E12
GND
NC
4
11
2.0
E27
R443
3
ABL
8.1
7
0
GND
150K 1/2W
8
0.1
E8
NC
5
C427_1
100V
0.1
MKT
TO CRT
CP801A
B2013H02-5P
180V
1
NC
NC
2
NC
NC
3
GND
4
HEATER
5
CAUTION
:SINCE THESE PARTS MARKED BY
ARE
CAUTION: DIGITAL TRANSISTOR
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
F
G
H
8
V801
A51LYZ295X81
9
10
R
8
G
6
B
11
5
7
1
7
TO CRT/SVM
1
2
CD803_1
(CP805)
CH823006
6
5
FROM/TO CRT
4
3
2
1
H
20AF46/20AF46C
G-6