Backlight Inverter - Sanyo DP19649 Service Manual

A B
8
7
4A 125V
FROM POWER
4A 125V
F7001
INV+B
20N_4000FS
GND
6
INVERTER GND
INVERTER +B SW
Q7002
KTC3198
12.4 8.3
9.1
R7022
P.CON+12V
3.3K
1/4W
5
4
R7001 R7003 R7005
LIGHT_CTL
2.7K 4.7K 100
R7004
INVERTER_H
1K
1/4W
3
2
4A 125V
CAUTION
:FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE
1
ATTENTION
:POUR UNE PROTECTION CONTINUE LES RISQUES D'INCEIE
N'UTILISER QUE DES FUSIBLE DE MEME TYPE
CAUTION
:F7001 IS MANUFACTURED BY SKYGATE CO.,LTD., TYPE 20N.
A B
G-25
C
BACKLIGHT INVERTER SCHEMATIC DIAGRAM
INVERTER GND INVERTER S GND
INVERTER CTL IC
IC7001 BD9893F
R7010 C7011
1.4 8.3
RT VCC
39K +-1% 25V 1 B
R7013 R7024
1.4 5.0
SRT N1
68K 22 1/4W
1.2 0
FB PGND
R7023
1.2 5.0
IS N2
22 1/4W
R7018
0.5 2.5
VS STB
1.2K
C7009
0 2.7
INV GND SS
0.1 B
C7008
2.0 0
DUTY SCP
10V 0.47 B
C7003
1.2 1.5
BCT COMP
C7004
0.068 B
0.001 B
R7014 R7032
15K 33K
R7011 R7027
100K 15K
CAUTION
:SINCE THESE PARTS MARKED BY
4A 125V(F7001) CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
4A 125V(F7001)
C
D E
(POWER PCB)
INV DRIVE 3.8A/60V/56mohm
Q7004 TPC8218-H
R7039 C7018
0 S1 D1 12.4
33 1/4W 500V
2.6
G1
D1 12.4
0 S2 D2 12.4
2.6 G2 R7038 C7017
D2 12.4
33 1/4W 500V
COMP_FB Q7001
KTC3875S_Y_RTK
1.5
R7021 R7047 D7012
0.3
10K 10K 1SS133
0.0
ARE 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
T7001
8137001R
3.1
12.0
1 8
0.0022 B
12.0 0
2 7
12.0 0
3 6
12.0 3.1
4 5
0.0022 B
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
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.
F G
H
8
7
HIGH VOLTAGE
CP7001
C3502WR0-2P-HK
NC
LV 2
HV 1
NC
6
VS_DET
IS_COMP
IS_DET2
CP7002
C3502WR0-2P-HK
NC
5
LV 2
HV 1
NC
HIGH VOLTAGE
4
3
2
PCB240
CEJ497
1
H
G-26