Philips 22PFH4000/88 Service Manual page 68

Circuit Diagrams and PWB Layouts
10-4-2 LED Driver
LED Driver
A02
Q8102
+36V/+24V
LMBT3906LT1G
ON/OFF
R8133
C8132
10K OHM +-5% 1/8W
100N 50V
R8134
R8141
10K 1/4W
15K 1/4W 1%
ZD8101
R8136 BZT52-B9V1_R1_00001 Q8103
2 1
2N7002K
15K 1/4W 1%
R8137 R8138
C8133
6.2K OHM +-1% 1/8W
1N 50V
100KOHM +-1% 1/8W
C8131
1N 50V
TPN15.1E LA 10.
L8101
330uH
+36V/+24V
+
C8108
C8101
220nF 100V
82uF 100V
R8135
10ohm +/-1% 1/8W
+12V
C8106
100N 50V
R8139
IC8101
10ohm +/-1% 1/8W
1
OVP_L
VIN DRV
2
OVP GND
3
EN CS
4
RT DIM
5
COMP LOSC
6
PARL STATUS
7
SENSE1 FB4
8
G1
Gate1 Gate4
9
SENSE2
FB1 SENSE4
10
SENSE2 FB3
11
Gate2 Gate3
12
G2
FB2 SENSE3
LD7890GS
S1
R8115 VLED_1
2M4
FB8103
BEAD
1 2
FB8102
BEAD
1 2
HS8101
HEAT SINK
1
2
3
4
EN 68
R8150
51R 1%
C8150
R8151
51R 1%
UG58G-01 X0
FB8101
100PF
D8101
1 2
BEAD
D8103
R8111
Q8101 200K 1/4W
UG58G-01 X0
D8102 P0925ATF
SS1060FL
R8112
200K 1/4W
R8102
33 OHM 1/8W
OVP_L
R8105 R8104
0.2R
1K 1/8W 1%
24
23
R8106
22
10K 1/8W 1%
21
20 R8155 DIM
19
200K 1/8W
18
C8143
17 G2
100P 50V
16
15
14
13
SENSE2
R8143
10K 1/8W 1%
2D/3D
back to
2015-Oct-20
div.table
VLED+
VLED+
+ +
VLED_1
C8145
2.2NF
VLED_1
R8148
Q8143
0 OHM +-5% 1/8W
P0925AD
G1 Q8149
P0925AD
R8164
200K 1/8W
S1
Q8147
P5002CMG
Q8145
P5002CMG
GND801 GND802
1 1
GND GND
GND804 GND805
1 1
GND GND
LED Driver
A02
CN8101
7
6
5
4
3
2
1
CONN
GND803
1
GND
GND806
1
GND
GND807
1
GND
2014-7-10
715G6940
19617_508.eps