Read Sharp LL-171A Service Manual online
LL-171A-W/B/LL-171G-W/B
CIRCUIT DIAGRAM & PWB LAYOUT
6 – 16
DIMMING(PWM)
SENSOR_R1
C233
4.7UF
R253
0
R242
270K
D219
1N4148
C236
0.1uF
Q217
RK7002
2
3
1
R240
2M
BURST CONTROL AMP
N.C
R241
270K
VREF
Q219
RK7002
2
3
1
+12VCC
Q218
RK7002
2
3
1
R244
R243
Q221
DTC144WKA
C237
0.1uF
BU_L
Q220
DTC144WKA
LAMP PROTECT
SENSOR_L1
N.C
BU_R
R254
0
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
3/3
B
U
RST CONTR
OL & PR
O
TECTER
Click on the first or last page to see other LL-171A service manuals if exist.