Philips 32PFL3508G/78 Service Manual page 61

Circuit Diagrams and PWB Layouts
10-2-5 A05, LED Current Balance
LED Current Balance
A05
IC8501
1
DIM_IN
DIM COMP
2
EN EN GM
3
+12V VCC ISET
4
LED-1
LED GND
PF7700A
C8510 + C8511
100N 50V
22UF 50V
IC8504
1
DIM_IN DIM COMP
2
EN
EN GM
3
+12V
VCC ISET
4
LED-4 LED GND
PF7700A
C8514
100N 50V
R8511
EN
On/Off
10K 1/8W 1%
R8512
C8517 NC
1N 50V
L12M3.1L LA 10.
8
LED-COMP
7
DIM_IN
6
EN
5
+12V
R8501
LED-2
10K 1/8W 1% C8501
0.47UF 50V
8
LED-COMP
7
DIM_IN
6
EN
5
+12V
R8504 C8504
LED-5
0.47UF 50V
10K 1/8W 1%
R8513
DIM_IN LED-6
DIM
LED-5
10K 1/8W 1%
C8518
1N 50V
LED-4
LED-3
LED-2
LED-1
EN 61
IC8502
1 8
DIM COMP LED-COMP
2 7
EN GM
3 6
VCC ISET
4 5
LED GND
R8502
10K 1/8W 1% C8502
PF7700A
0.47UF 50V
C8512
100N 50V
IC8505
1 8
LED-COMP
DIM COMP
2 7
EN GM
3 6
VCC ISET
4 5
LED GND
R8505
10K 1/8W 1% C8505
PF7700A
0.47UF 50V
C8515
100N 50V
R8523
NC
R8525
NC
R8522
NC
R8524
NC
R8521
NC
back to
2013-Jun-21
div. table
IC8503
1 8
DIM_IN DIM COMP
2 7
EN EN GM
3 6
+12V
VCC ISET
4 5
LED-3
LED GND
R8503
10K 1/8W 1%
PF7700A
C8513
100N 50V
IC8506
1 8
DIM_IN
DIM COMP
2 7
EN
EN GM
3 6
+12V VCC ISET
4 5
LED-6
LED GND
R8506
10K 1/8W 1%
PF7700A
C8516
100N 50V
VLED
CN8501
1
2
3
4
5
6
7
8
9
10
11
12
CONN
VLED
LED Current Balance
A05
LED-COMP
C8503
0.47UF 50V
LED-COMP
C8506
0.47UF 50V
A 2013-01-02
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