Philips 22PFS4232/12 Service Manual page 89

8-8-15 LED Driver
+22V
+
C8601
220uF 50V
VCC
OUT
VLED-
R8609 U8601
10R 1/8W 5% PF7708BS
1 8
LED FB
2 7
VCC GM
3 6 BRIGHT_ADJ BRIGHT_ADJ
CS/OVP DIM
4 5
OUT GND
+
C8608
220N 50V
R8613 R8614
1.2R 1%
1.2R 1%
GND
L8602
33uH
6
4
L8601
33uH
OUT
R8612
R8605
33K 1/8W 1%
10ohm +/-1% 1/8W
D8603
R8607
1N4148W
5.1R 1/8W 5%
R8606
33K 1/8W 1%
10K OHM +-5% 1/8W
R8602
0 OHM
INVERTER_ON_OFF
R8610
4.3K OHM 1%
R8611
33K 1/8W 1%
C8611
10PF 50V
C8612
47N 50V
R8615 R8616 R8617 R8618
1.5R 1.5R
1.2R 1% 1.5R
PWR_12V
PWR_12V 4,11,13,14,17,18
INVERTER_ON_OFF
INVERTER_ON_OFF 4
BRIGHT_ADJ
BRIGHT_ADJ 4
GND 4,5,6,7,8,9,10,11,12,13,14,15,16,17,18
1 2 1 2
D8602
FB8602
SR506 BEAD
1 2 1 2
D8601
FB8601
SR506 BEAD
C8605
100N 50V
Q8601
R8619
CYS9240 32A
10 OHM
C8613
R8608
100pF 50V
R8601
0R075
INVERTER_ON_OFF
VLED+
+ +
R8603 R8604 C8606 C8607
100K 100K 1uF 1uF
C8603 C8604
220uF 50V 220uF 50V
D8604
1N4148W
Q8602
DTA144WN3/S
PWR_12V
C8615 C8616
R8620
100N 50V 100N 50V
15K 1/8W 1%
R8621
0 OHM +-5% 1/8W
Q8603
R8622
2N7002K
1K OHM +-5% 1/8W
R8623 C8617
100N 50V
330K 1/8W 5%
6
CN8602
5
CONN
VLED-
4
3
2
1
VLED+
VCC