Philips 22PFS4232/12 Service Manual page 40

8-1-2 LED DRIVER
+22V
+
C8601
220uF 50V
VCC
OUT
VLED-
U8601
PF7708AS
1 8
LED FB
2 7
VCC GM
3 6
CS/OVP DIM
4 5
OUT GND
+
C8608
220N 50V
L8602
NC
6
4
L8601
33uH
OUT
R8612
27K 1/8W 1%
R8606
27K 1/8W 1%
R8602
NC/0R05 1/4W
ON/OFF
DIM
R8611
33K 1/8W 1%
C8611
10pF 50V
C8612
47N 50V
R8618
R8613 R8614 R8615 R8616 R8617
1R2 1% 1R2 1% 1R2 1% 1R2 1%
1R2 1% 1R2 1%
R8605
10ohm +/-1% 1/8W Q8601
R8619
CY S9240
10 OHM
D8603
R8607
1N4148W
5.1R 1/8W
C8613
100pF 50V
R8608
10K 1/8W
R8610
4K3 1/8W 1%
R8601
0.05R
12
11
VLED+
10
VLED-
FB8602
NC/BEAD
D8602
NC/SR506
1 2
FB8601
BEAD
D8601
SR506
1 2
+
C8605
100N 50V
C8603
220uF 50V
+12V
R8620
C8615
NC/2K2
100N 50V
R8622
1K 1/8W 1%
ON/OFF
R8623
330K 1/8W 5%
CN8601
CONN
9
8
7
6
5
4
3
2
1
VLED+
+
C8607
R8603 R8604 C8606
100K NC 1uF 1uF
C8604
220uF 50V
D8604
1N4148W
Q8602
DTA144WN3/S
VCC
C8616
2.2UF 25V
R8621
0
Q8603
2N7002K
C8617
100N 50V