Acer LCD-X193HQ Service Manual page 56

5
D
VIN
R501
100K
1
1
Q502
2 ON/OFF
R502
MMBT4401
100K
C502 R503
220p/50V 100K
C
2 BRIGHTNESS
R504
10K
VIN
2 +14V
B
LI1
LI2
A
5
4
Q501
MMBT4401
OV2 OV1
1 16
OV2 OV1
C508
LI1
1u/16V
2 15
LI1 GND
LI2
3 14
LI2 BG
C503
3300p/50V
4 13
COMP VCC
C504
2.2u/16V
5 12
FT SW
6 11
FSET TG
R505 REF
105K 1%
7 10
BOSC BT
R526
8 9
DBRT VIN
NC
C505 IC501
220p/50V MP1009
C507
0.1/50V
+
C501
470u/25V
OL1 OV1
R509 D503
2K SN4148
OL2
OV2
R510 D504
2K SN4148
4
3
VIN
C510 C509
2.2u/25V NC
C511 C512
2.2u/25V NC
L<2.cm
W=2.0mm
R506
10
REF
C506
0.047/50V
U501
1 8
2 7
3 6
4 5
R507
10
R508
AP9971NN
100
R511
LV1 10K
R512 D501
2K SN4148
REF
R513
LV2
10K
R514 D502
2K SN4148
3
2
C516
10p/3KV
R520
20K
C520
C522 3300p/50V
R519
680pF/50V
20K
T501
2 8
3
C514
NC
5
C513
6 7
0.1/50V
SPW-078
C517
10p/3KV
LV1
C523
C521
680pF/50V
3300p/50V
InnoLux
Document Number :
TITLE :
DATE :
SHEET 3
2
1
1
H
OL2
2
L
CN504
4100-D02
R515 R517
LV2
390 1% 10K 1%
4100-D02
1
H
OL1
2
L
CN501
R516
390 1% R518
10K 1%
SIZE : APPRO BY :
doc A3
CHECK BY :
Inverter SCH
DRAWN BY :
2008-05-21
Rev :
OF 4 01
1
D
C
B
A