Sharp LC-32LD164E Service Manual page 73

POWER SCHEMATIC DIAGRAM 2/2 ( LED DRIVER)
LC-32LD164–LC-32LD165–LC-32LD165RU–LC-32LD166
02 LED Driver
I
+12V
H
C8525
1uF
270k+150k UVLS=8.4V
G
R8533
10 OHM 1/4W
F
C8527
2.2UF 50V
R8512
10K 1/4W
Panel ON/OFF
R8513 C8524
100N 50V
E
100KOHM +-5% 1/8W
2.2UF 50V
R8514
10K 1/4W
DIM
D
R8515 C8506
330K 1/8W 5% NC
C
B
A
1 2 3
C8526 + C8501 + C8502
330UF 35V 330UF 35V
100N 50V R8508
270K 1/4W
UVLS _VREF 3V
R8509
C8504 150K 1/8W +/-1%
1NF 50V
R8520
0R05 1/4W
IC8501
OZ9902CGN
1 16
UVLS FAULT
2 15
VCC DRV
3 14
ENA GND
4 13
VREF OVP
5 12
RT ISW
6 11
PWM PROT
7 10
ADIM ISEN
C8505 R8516 8 9
TIMER SSTCMP
39K 1/8W 1%
TIMER
R8517 100K
C8507
2.2UF 50V C8508
1N 50V
R8518
100KOHM +-5% 1/8W
Fop=6120/39=157K Hz
Fop=6120/51K=120K Hz
4 5 6 7
L8501
6
4
33uH
R8511
Q8501
NC
AOD2916 C8515
47pF
R8521
10K OHM C8503
D8502 NC
NC
R8504
75OHM +-5% 1/8W R8503
470 OHM 1/4W
R8505 C8510
NC 470PF 50V
R8523 1K 1/4W
R8522
TIMER
10K OHM
R8519
1K 1/8W 1%
D8503 C8519
BAV70
100pF 50V
C8509
2.2UF 25V
R8528
100KOHM +-5% 1/8W C8522
100N 50V
8 9 10
73
FB8501
D8501 BEAD
1 2 1 2
SR810-05
+ C8512 + C8513
330UF 50V 330UF 50V
R8506
12.5*12 12.5*12
62K 1%
R8527
NC
OVP _VREF
2.85V min
C8511
100pF 50V
12k//12k
OVP=32.3v(min)
panel Vled=25.9V max
VLED-
Q8502
AOD478
R8526 C8520
1NF 50V
10K 1/8W 1%
ILED(mA)=302/R=1037.64mA
13
11 12
LC-32LD164
LC-32LD165
LC-32LD166
VLED+
+ C8514 C8517 C8518
NC
100NF 250V 100NF 250V
CN8501
CONN
VLED+ 1
2
3
4
5
VLED- 6
C8521
1NF 50V
14
15 16