Philips 4500 Series Service Manual page 33

Circuit Diagrams and PWB Layouts
10-2-2 LED Driver
LED Driver
A02
Q8102
LMBT3906LT1G
ON/OFF
R8133
C8132
10K OHM +-5% 1/8W
100N 50V
R8134
10K 1/4W
ZD8101
R8136
+36V/+24V BZT52-B9V1_R1_00001 Q8103
2 1
2N7002K
20K 1/8W
C8133
R8137
1N 50V
10KOHM
C8131
1N 50V
TPS15.2A LA 10.
+36V/+24V
+
C8108
C8101
100N 50V
330uF 50V
R8135
10ohm +/-1% 1/8W
+12V
C8106
100N 50V
R8139
IC8101
10R 1/8W 5%
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
10 FB1 SENSE4
SENSE2 FB3
11
Gate2 Gate3
12
G2
FB2 SENSE3
LD7890GS
S1
R8115
VLED_1
1M 1/8W 5%
Remove R8114&R8150
FB8103
BEAD
1 2
FB8102
BEAD
1 2
EN 33
L8101
33uH
FB8101
D8101
SP10150
2 1
BEAD
D8102
SS1060FL Q8101
MTE65N15FP
R8102
33 OHM 1/8W
OVP_L
R8116
0.1R 2W
R8104
0.1R 2W
24
23
R8106
22
10K 1/8W 1%
21
20 DIM
19
R8155 C8143
200K 1/8W
18
100P 50V
17
G2
16
15
14
13
SENSE2
R8143
NC
2D/3D
HS8101
1
2
3
4
HEAT SINK
back to
2015-May-01
div.table
2
VLED+
+ +
VLED_1
Q8143
R8148
0R051/8W MTBA5N10J3
G1 Q8149
MTBA5N10J3
S1
Q8147
NC
Q8145
NC
GND801
1
NC
GND804
1
NC
LED Driver
A02
CN8101
CONN
VLED+
1
2
VLED_1 3
4
5
6
7
VLED_2 8
9
10
11
12
VLED+
GND802 GND803
1 1
NC NC
GND805 GND806
1 1
NC NC
GND807
1
NC
2014-05-12
715G6338
19900_504.eps