Philips 32PFL3508G/78 Service Manual page 65

Circuit Diagrams and PWB Layouts
10-3-2 A02, LED Driver
LED Driver
A02
+24V1
+12V
R8134
0 OHM +-5% 1/8W
FB_2
ZD8101
NC
+
C8127 C8123 IC8107
10UF 50V 100N 50V PF7900S
1 8
FB VCC
2 7
GM OUT
3 6
RT GND
4 5
CS DIM
R8118
100KOHM +-5% 1/8W
R8126
1K 1/8W 1%
C8124 C8126
100N 50V 1N 50V C8120
1N 50V
DIM2
IC8101
1 8
EN DIM COMP
2 7
EN GM
3 6
+12V
VCC ISET
4 5
LED GND
LED1
12.7 KOHM +-1% 1/8W
PF7700A
C8129 + C8111
47UF25V
470NF 50V
IC8102
1 8
EN
DIM COMP
2 7
EN GM
3 6
+12V VCC ISET
4 5
LED GND
LED2
PF7700A
C8112
470NF 50V
L12M3.1L LA 10.
L8101
D8102
SR510-22
1
+ C8108 33uH
150UF 35V
Q8101
D8101 R8125 AOD4126
SS0520_R1 2R2 +-5% 1/8W
2 1
R8123
10K OHM +-5% 1/8W
R8124
22 OHM 1/8W R8117
0.05R
R8119 10K 1/4W
DIM
D8111 1N4148
DIM1
D8112 1N4148
DIM2
D8113 1N4148
DIM3
COMP IC8103
1
C8101
EN DIM
2
470NF 50V
EN
3
+12V
VCC
4
LED
R8101
LED3
PF7700A
C8113
470NF 50V
COMP DIM3
IC8104
1
C8102
EN
DIM
2
470NF 50V
EN
3
+12V VCC
4
LED
R8102
LED4
12.7 KOHM +-1% 1/8W
PF7700A
C8114
470NF 50V
EN 65
L8102
3UH
2
C8125
C8132 47UF 100V C8128
220UF 100V 2.2NF 630V
+ +
R8111
NC
R8107
820K 1%
C8117
NC
R8108
750K 1%
C8118
NC
FB_2
Q8102
R8110 NC
120KOHM +-1% 1/8W
COMP
R8109 C8122
120KOHM +-1% 1/8W NC
COMP DIM1
8
C8103
COMP EN
7
470NF 50V
GM
6
+12V
ISET
5
GND
R8103
LED5
12.7 KOHM +-1% 1/8W
COMP
8
C8104
EN
COMP
7
470NF 50V
GM
6
ISET +12V
5
GND
R8104
LED6
12.7 KOHM +-1% 1/8W
back to
2013-Jun-21
div. table
VLED
VLED
LED5
R8185
R8121 R8122
100K 100K
LED3
R8183
LED1
R8181
LED2
R8182
+12V
LED4
R8184
LED6
R8120
NC
VLED
ZD8102
NC
2
LED2
4
LED1
6
8
VLED
IC8105 COMP
1 8
C8105
DIM COMP DIM2
2 7
470NF 50V
EN GM
3 6
VCC ISET
4 5
LED GND
R8105
12.7 KOHM +-1% 1/8W
PF7700A
C8115
470NF 50V
COMP
IC8106
1 8
C8106
DIM COMP
2 7
470NF 50V
EN GM
3 6
VCC ISET
4 5
LED GND
R8106
12.7 KOHM +-1% 1/8W
PF7700A
C8116
470NF 50V
LED Driver
A02
0 OHM +-5% 1/8W
CN8101
12
0 OHM +-5% 1/8W
11
10
9
8
0 OHM +-5% 1/8W
7
6
5
4
0 OHM +-5% 1/8W
3
2
1
0 OHM +-5% 1/8W
CONN
CN8102 NC
1
LED4
3
LED3
5
LED5
7
CN8103
1
DIM1
2
3
DIM3
4
CONN
C 2012-12-07
715G5793
19430_512_130114.eps
130114