Philips 32HFL5763D/F7 Service Manual page 44

Power Supply 2 Schematic Diagram
4
CONTINUE
POWER 1
LCD-5V
LCD+13V
LCD+31.5V
P-ON+3.3V
3
TO INVERTER
CN650
CBA CN1001
0
GND 1
NU 2
0
GND 3
1.0
BACKLIGHT-ADJ 4
3.0
BACKLIGHT-SW 5
3.0
PROTECT3 6
0
GND 7
12.8
LCD+13V 8
12.8
LCD+13V 9
31.9
LCD+31.5V 10
0
GND 11
2 3.3
P-ON+3.3V 12
-5.2
LCD-5V 13
5.2
VCOM 14
C667
0 C666
GND 15 0.1
0.1
C660
0.1
1
H
POWER SUPPLY CBA
R687
C661 C677
10
0.1
0.1
C676
12.8
1000P
5.3
Q658
5.2
KTC3875S-Y-RTK/P
R685
(V-COM DRIVE) 1
JS651
R690 5.2
OPEN
100K
5.3
Q659 R698
R692 0
2SA1576UBTLQ OPEN
OPEN
(V-COM DRIVE)
R689
10
R694
1.5K
C678 R693
C679
1 47/25V 10K
12.8 5.3 5.2 5.2
8 7 6 5
VCC
IC651
TL3472CDR
(COMPARATOR)
VEE
1 2 3 4
0.1 0.1 0 0
R680
OPEN
31.9 32.5
Q656
R678 C669
R682 C672 C671
2SA1576UBTLQ
R681 31.9 100K OPEN
OPEN OPEN OPEN
1K (SWITCHING)
R679
1K
Q657
KTC3875S-Y-RTK/P C670
26.8 R683 0.1
(SWITCHING)
1K
0.3
R684
0
100K
R702 D666
47K 1SS133
R703
10K
I J
R695
10K
C673
C675 C674
22/50V
OPEN OPEN
Q661
OPEN
R699 C680
OPEN OPEN
R696
15K
3.5
R697
1K
0.3
Q660
0
KTC3875S-Y-RTK/P
(V-COM DRIVE)
D665 C668
1SS133 2.2/50V
R753
0.4
R700
OPEN
10K
1.0
0.4 Q662
KTC3875S-Y-RTK/P
(SWITCHING)
K
11-4
CONTINUE
POWER 1
BACKLIGHT-ADJ
BACKLIGHT-SW
PROTECT3
LCD-P-SAFETY
VCOM
OE2
P-ON-H1
L M
A17FYSCP2