Sharp LL-171A Service Manual ▷ View online
LL-171A-W/B/LL-171G-W/B
CIRCUIT DIAGRAM & PWB LAYOUT
6 – 15
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
2/3
R214
0£[
C217
0.22UF/160V
C226
22P/3KV
R219
4.7K
R223
1K MOF-DIP(1W)
L202
120UH
SENSOR_L1
C223
22P/3KV
C202
220UF/25V
L201
120UH
CN204
33L8021-2D-AC
1
2
Q209
SST3904
R201
15K
D208 1N4148
R216
3.9K
R237
NC
D212
1N4148
R224
1K MOF-DIP(1W)
R221
1M
R227
1K(1206)
D201
N.C
Q212
2SC5706(DIP)
1
2
3
C208
0.1UF
BU_R
R228
4.3K
Q208
SST3904
U201
LM339M
1
2
3
4
5
6
7
8
9
10
11
12
13
14
OUT_2
OUT_1
VCC
IN_1 -
IN_1 +
IN_2 -
IN_2 +
IN_3 -
IN_3
+
IN_4
-
IN_4+
GND
OUT_4
OUT_3
R226
1K(1206)
Q201
DTC144WKA
BU_L
C218
0.22UF/160V
C201
220UF/25V
R236
NC
D203
SMAL240
OR SR24
R202
15K
C228
0.022UF
C232
0.1UF
C229
0.22UF
R234
39K
R211
16K
.
.
L203
73L174-30-YS
1
4
2
3
Q205
SST3904
D218
1N4148
Q202
DTA144WKA
1
2
3
C203
0.1UF
C225
22P/3KV
R233
2.7K
D204
SMAL240 OR SR24
R205
18K
is signal GND
Q213
2SC5706(DIP)
1
2
3
R215
0£[
CN203
33L8021-2D-AC
1
2
C211
0.01UF
D206 1N4148
D217
1N4148
C212
0.01UF
D207
1N4148
Q211
2SC5706(DIP)
1
2
3
C224
22P/3KV
U202
TL431
2
1
3
C206
0.1UF
R206
18K
F201
0 ohm
C215
1UF
R203
4.7K
C216
1UF
VREF
Q206
SST3904
C214
0.1UF
R218
4.7K
C231
0.1UF
Q204
SI4431
OR
AO4411
4
8
5
6
7
3
2
1
Q203SI4431 OR AO4411
4
8
5
6
7
3
2
1
R235
3
9
K
C209
1000PF
D205
1N4148
Q210
SST3904
PT202
80AL17T-15-YS
5
4
6
7
1
2
3
9
Q216
RK7002
2
3
1
Q215
RK7002
2
3
1
R210
16K
.
.
L204
73L174-30-YS
1
4
2
3
C230
0.22UF
+12VCC
PT201
80AL17T-15-YS
5
4
6
7
1
2
3
9
R225
1K MOF-DIP(1W)
CN201
33L8021-2D-AC
1
2
D214
1N4148
R23030K
R220
1M
R222
1K MOF-DIP(1W)
R231
30
K
R204
4.7K
D202
N.C
R229
4.3K
+12V
Q214
2SC5706(DIP)
1
2
3
D215
1N4148
C227
0.022UF
Q207
SST3904
is power GND
D216
1N4148
D209
1N4148
R208
15K
SENSOR_R1
D213
1N4148
R239
8.2K
R232
2.7K
C210
1000PF
C205
0.1UF
D211
1N4148
R212
5.6K
C207
0.1UF
C213
0.1UF
R213
5.6K
R209
15K
R217
3.9K
CN202
33L8021-2D-AC
1
2
R207
4.7K(1206)
R238
8.2K
ON/OFF
D210
1N4148
C204
1UF
INVERTER DOR 17'HYDIX
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
LL-171A-W/B/LL-171G-W/B
CIRCUIT DIAGRAM & PWB LAYOUT
6 – 17
A side
B side
■
PWB LAYOUT
q
SHARP CORPORATION
Digital Document Systems Group
Products Quality Assurance Department
Yamatokoriyama, Nara 639-1186, Japan
Digital Document Systems Group
Products Quality Assurance Department
Yamatokoriyama, Nara 639-1186, Japan
2004 March Printed in Japan
t
2004 BY SHARP CORPORATION
Printed in Japan.
