Toshiba 19DV616DG Service Manual page 162

A B
8
7
FROM POWER
INV+B
R7022
P.CON+12V
3.3K 1/4W
6
INV_GND
W809
GND
5
4
R7001 R7003 R7005
LIGHT_CTL
2.7K 4.7K 100
R7004
INVERTER_H
1K
3
2
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
H-89
C
BACKLIGHT INVERTER SCHEMATIC DIAGRAM
F7001
W836
20N_4000FS
12.4 8.3
4A 125V
INVERTER +B SW
Q7002
9.1
KTC3198
INVERTER COTROL IC
IC7001 BD9893F
R7010 C7011
1.4 12.0
RT VCC
39K +-1% 1 B
R7013_1 R7024
1.4 5.0
SRT N1
68K +-1% 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
0.47
B
C7003
1.2 1.5
BCT COMP
0.068 B
R7014 R7032
15K 33K
R7011 R7027_1
100K 15K +-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.
C
D E
(POWER PCB)
DRIVE
Q7004 FW256-TL-E
0 S1 D1 12.4
2.6
G1 C7018 R7039
D1 12.4
500V 0.0022 B 33 1/4W
C7017 R7038
0 S2 D2 12.4
500V 0.0022 B 33 1/4W
2.6 G2
D2 12.4
COMP_FB
Q7001
KTC3875S_Y_RTK
1.5
R7021 R7047 D7012
0.3
270K 10K 1SS133
0
CAUTION
:SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
F G
T7001
8137001R
3.1
12.4
1 8
12.6 0
2 7
12.6 0
3 6
12.4 3.1
4 5
HIGH VOLTAGE
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
7
CP7001
C3502WR0-2P-HK
NC
LV 2
HV 1
NC
VS_DET
6
IS_COMP
IS_DET2
CP7002
C3502WR0-2P-HK
NC
LV 2
HV 1
NC
5
4
3
2
PCB240
CEH434
1
H
19DV616DG H-90