Sharp LL-171A Service Manual ▷ View online
LL-171A-W/B/LL-171G-W/B
CIRCUIT DIAGRAM & PWB LAYOUT
6 – 7
81X90 FOR SHARP
B5
5.PANEL INTERFACE
VLCD
PB[0..9]
PA[0..9]
B3
6.MCU
onBACKLITE
onPANEL_5V/3.3V
SDA
INT
CSZ
DDC_DAT
SCL
HWRESET
DDC_CLK
Volume
VCC5V
VCC12V
VCPU
RXD
TX
D
AdjBACKLITE
DVI-DDCSET
B2
4.SCALER
RIN
GIN
SOG
BIN
GNDR
GNDG
GNDB
HSYNC
VSYNC
R+
R-
G-
G+
B+
B-
CLK+
CLK-
CSZ
SCL
SDA
HWRESET
INT
Volume
PA[0..9]
PB[0..9]
VCC2.5
VCC3.3
VAA1
VAA2
VAA3
VAA4
VSYNC1
GNDR1
GIN1
GNDB1
GNDG1
BIN1
SOG1
RIN1
HSYNC1
B4
2.POWER
onPanel_5V/3.3V
onBACKLITE
AdjBACKLITE
VCC3.3
VCC2.5
VAA
1
VAA
2
VAA
3
VAA
4
VCC5V
VCC12V
VLCD
VCPU
B1
3.INPUT
RIN
GIN
BIN
VSYNC
GNDR
GNDG
GNDB
HSYNC
SOG
DDC_CLK
DDC_DAT
R+
R-
G-
G+
B+
B-
CLK+
CLK-
TX
D
RXD
RIN1
GNDR1
GIN1
GNDG1
GNDB1
VSYNC1
SOG1
HSYNC1
BIN1
DVI-DDCSET
PB[0..9]
PA[0..9]
VCC2.5
VCC5V
VAA1
VCC12V
VCPU
VAA2
VCC5V
VLCD
VAA1
VCC12V
VCC3.3
VCC3.3
VAA3
VLCD
VAA4
VAA
3
VCC2.5
VAA4
VCPU
VAA
2
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
1/6
1.
T
O
P
■
171G
LL-171A-W/B/LL-171G-W/B
CIRCUIT DIAGRAM & PWB LAYOUT
6 – 8
Brightness
TO-252
TO-263
GND
ON_OFF
VCC12V
GND
GND
GND
DIM
VCC12V
GND
VCC5V
VCC5V
GND
VCPU
VAA2
VAA1
VCC3.3
VCC5V
VCC5V
VAA3
VAA4
VCC5V+
VCC2.5
VCC5V+
VCC12V
VLCD
VCC5V
VCC5V
VCC3.3
VCC5V
VCC5V+
VCPU
VCC5V
VCC5V
R207
4.7K
1/16W
Q202
PMBS
3904
3
2
1
C203
0.1uF
FB202
NC
D201
FUSE 600mA
+
C204
220uF/25V
U202
AIC1084-33M
3
1
2
VIN
ADJ
VOUT
R201
0
1/16W
D205
3.3V
Q20
1
PMB
S3904
3
2
1
R208
10K
1/16W
R204
1K
1/16W
C201
0.1uF
Q20
3
AO340
1
C214
0.1uF
CN201
Wafer 2x6
1
3
5
7
9
11
2
4
6
8
10
12
R211
10K
1/16W
Q204
PMB
S3904
3
2
1
D204
7.5V
R202
10K
1/16W
+
C202
220uF/25V
R212
4.7K
1/16W
FB201
600 OHM
R203
1K
1/16W
+
C206
NC
+
C208
10uF
U201
RT9164-25CL
3
2
1
VI
VO
GND
R213
10K
1/16W
C210
0.1uF
D206
3.3V
C207
0.1uF
R206
10K
1/16W
C216
0.1uF
R205
4.7K
1/16W
+
C211
100uF/25V
R209
0
1/16W
D203
BAV9
9
3
1
2
D202
SR34
C205
0.1uF
+
C215
47uF/25V
R210
NC
C212
0.1uF
AdjBACKLITE
6
6
onBACKLITE
6
VAA1
4
VAA2
4
VAA3
4
VAA4
4
VCC3.3
4
VCC12V
6
onPanel_5V/3.3V
6
6
VLCD
5
VCPU
6
VCC2.5
4
VCC5V
3,6
VCPU
6
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
2/6
2.
PO
WER
LL-171A-W/B/LL-171G-W/B
CIRCUIT DIAGRAM & PWB LAYOUT
6 – 9
DDC_D
DDC_A
SOT23
1
2
34
5
HSI-1
DAT_DDC
PC5V
VSI-1
CLK_DDC
CLK_DDC2
DAT_DDC2
HSI-2
VSI-2
SDA_D
DDC-VCC_DVI
SCL_D
VSI-2
DDC-VCC_DVI
DDC-VCC_DVI
DVI-DDCSET
SCL/I
SDA/I
SDA/I
SCL/I
VCC5V
DVI5V
VCC5V
VCC5V
DVI5V
DDC-VCC_DVI
DDC-VCC_DVI
VCC5V
DDC-VCC_DVI
VCC5V
PC5V
VCC5V
VCC5V
DVI5V
C319
75
1/16W
R360
0
1/16W
FB306
30OHM
CN301
DB15
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
C302
0.047uF
D301
BAV99
3
1
2
R301
75
1/16W
R320
47
1/16W
R346
10K
1/16W
D326
BAV99
3
1
2
R339
10K
1/16W
C312
220pF
R348
10K
1/16W
R313
150
1/16W
R359
0
1/16W
R326
NC
D316
LL5232B 5.6V 5%
R318
4.7K
1/16W
C301
NC
U305A
NC7S32
1
2
4
5
3
R321
47
1/16W
FB305
30 OHM
R332
150
1/16W
R344
NC
C328
0.1uF
C322
0.047uF
C313
0.1uF
R314
100
1/16W
R305
470
1/16W
R355
0
1/16W
D320
BAV99
3
1
2
R319
4.7K
1/16W
D319
BAV99
3
1
2
R342
NC
D323
BAV99
3
1
2
R324
33
1/16W
R309
68
1/16W
R337
22
1/16W
Q303
NC
D
G
S
R354
NC
R304
33
1/16W
R327
NC
FB307
30 OHM
C327
0.1uF
C309
0.047uF
R307
75
1/16W
R336
10K
1/16W
R328
NC
R306
75
1/16W
C314
0.047uF
R358
0
1/16W
R315
1K
1/16W
D310
BAV99
3
1
2
R331
68
1/16W
D308
MLL5232B 5.6V
C325
220pF
R330
68
1/16W
C324
47pF
C306
NC
R310
68
1/16W
C317
0.001uF
R308
68
1/16W
D312
BAV99
3
1
2
D306
MLL5232B 5.6V
U303
74VHC4053
12
11
2
1
5
4
6
13
10
9
14
15
3
7
8
16
0A
SA
0B
1B
0C
ZC
INH
1A
SB
SC
ZA
ZB
1C
VEE
GND
VCC
D305
MLL5232B 5.6V
D324
BAV99
3
1
2
C329
0.1uF
R323
33
1/16W
C303
0.047uF
D302
BAV99
3
1
2
R329
68
1/16W
D313
BAV70
3
1
2
U302
AT24C02N-10SC
1
2
3
4
5
6
7
8
A0
A1
A2
GND
SDA
SCL
WP
VCC
C307
NC
R317
10K
1/16W
C326
0.1uF
R338
22
1/16W
C321
0.047uF
R334
1K
1/16W
R335
2.2K
1/16W
C304
0.047uF
R333
100
1/16W
D304
BAV70
3
1
2
D317
LL5232B 5.6V 5%
D321
BAV99
3
1
2
C330
0.1uF
FB303
30 OHM
C316
0.047uF
R357
0
1/16W
R303
33
1/16W
FB304
100
1/16W
R356
NC
Q302
NC
D
G
S
D311
BAV99
3
1
2
R361
4.7K
1/16W
R322
33
1/16W
FB301
30 OHM
D315
MLL5232B 5.6V
D325
BAV99
3
1
2
D314
MLL5232B 5.6V
D309
MLL5232B 5.6V
R352
0
1/16W
R350
4.7K
1/16W
C305
0.001uF
R302
33
1/16W
U304
AT24C02N-10SC
1
2
3
4
5
6
7
8
A0
A1
A2
GND
SDA
SCL
WP
VCC
C308
0.047uF
C323
0.047uF
C310
0.047uF
D303
BAV99
3
1
2
U301
AT24C02N-10SC
1
2
3
4
5
6
7
8
A0
A1
A2
GND
SDA
SCL
WP
VCC
D322
BAV99
3
1
2
C318
75
1/16W
FB308
100
1/16W
C311
47pF
D318
LL5232B 5.6V 5%
R345
10K
1/16W
R347
10K
1/16W
C320
75
1/16W
R351
0
1/16W
CN302
DVI-I
1
2
3
4
5
6
7
8
25
28
9
10
11
12
13
14
15
16
26
29
17
18
19
20
21
22
23
24
27
DAT2-
DAT2+
2/4shield
DAT4-
DAT4+
DDC SCL
DDC SDA
VSYNC
R
HSYNC
DAT1-
DAT1+
1/3shield
DAT3-
DAT3+
+5V
SYNC GND
HPD
G
RGB GND
DAT0-
DAT0+
0/5shield
DAT5-
DAT5+
clk shield
clk+
clk-
B
R316
2.2K
1/16W
FB302
30OHM
R325
470
1/16W
C315
0.047uF
GIN
4
HSYNC
4
BIN
4
SOG
4
VSYNC
4
GNDR
4
TX
D
6
GNDG
4
RXD
6
GNDB
4
RIN
4
G+
4
B+
4
R-
4
CLK+
4
B-
4
G-
4
R+
4
CLK-
4
GIN1
4
GNDB1
4
BIN1
4
GNDG1
4
SOG1
4
RIN1
4
GNDR1
4
HSYNC1
4
VSYNC1
4
DVI-DDCSET
6
DDC_DAT
6
DDC_CLK
6
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
3/6
3.
INPUT
LL-171A-W/B/LL-171G-W/B
CIRCUIT DIAGRAM & PWB LAYOUT
6 – 10
PB5
PA6
PB6
PA2
PB0
PA8
PB7
PB9
PA1
PB4
PA5
PA4
PB1
PB2
PB[0..9]
PA[0..9]
PA0
PB8
PB3
PA9
PA3
PA7
VCC3.3
VPO
VDD
VCC2.5
VAA1
VPL
L
VDPLL
VAA4
VAD
VAA3
VAA2
VDVI
VAD
VDVI
VDPLL
VDVI
VDD
VPO
VPLL
FB402
600 OHM
C410
0.1uF
C423
0.1uF
C418
0.1uF
C405
0.1uF
FB406
600 OHM
C401
0.1uF
X
401
14.318MHz
C421
0.1uF
+
C419
10uF
C409
0.1uF
C424
0.1uF
FB401
600 OHM
C420
0.1uF
C407
0.1uF
C403
0.1uF
C429
0.1uF
FB405
600 OHM
+
C416
10uF
C427
22pF
+
C411
10uF
C406
0.1uF
C425
0.1uF
C414
0.1uF
FB403
600 OHM
C417
0.1uF
C404
0.1uF
C426
22pF
C412
0.1uF
+
C428
10uF
C413
0.1uF
R401
390
1/16W
FB404
600 OHM
U401
MST9151B
33
30
31
28
32
29
27
126
127
3
4
6
7
9
10
12
13
15
37
36
38
40
41
42
121
43
118
117
119
120
44
45
80
81
78
79
76
77
74
75
96
97
92
93
90
91
88
89
86
87
70
71
18
35
16
8
14
103
124
55
61
72
82
94
107
114
58
64
85
111
19
34
39
17
102
125
5
11
56
62
73
83
106
113
57
63
84
95
112
122
123
2
46
47
48
49
50
51
52
53
54
24
25
22
26
1
115
21
23
20
128
116
RIN0
GIN0
SOGIN0
BIN0
RIN0M
GIN0M
BIN0M
HSYNC0
VSYNC0
R+
R-
G+
G-
B+
B-
CK+
CK-
REXT
REFP
RMID
REFM
CSZ
SDA
SCL
HWRESETZ
INT
DDC1_CLK
DDC1_DAT
DDCROM_CLK
DDCROM_DAT
PWM0
PWM1
LVA0P
LVA0M
LVA1P
LVA1M
LVA2P
LVA2M
LVACKP
LVACKM
LVB0P
LVB0M
LVB1P
LVB1M
LVB2P
LVB2M
LVBCKP
LVBCKM
LVB3P
LVB3M
LVA3P
LVA3M
AVDD
AVDD
AVDD_
PLL
AV
DD_DV
I
AV
DD_DV
I
VPLL
AVDD_
PLL
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDC
VDDC
VDDC
VDDC
AVSS
AVSS
REF_GND
AVSS_PLL
GPLL
AVSS_PLL
AVSS_DV
I
AVSS_DV
I
GNDP
GNDP
GNDP
GNDP
GNDP
GNDP
GNDC
GNDC
GNDC
GNDP
GNDC
XIN
XOUT
TESTPIN
VCLK
VD0
VD1
VD2
VD3
VD4
VD5
VD6
VD7
GIN1M
RIN1
SOGIN1
RIN1M
VSYNC1
DDC2_DAT
BIN1M
GIN1
BIN1
HSYNC1
DDC2_CLK
+
C402
10uF
C415
0.1uF
+
C422
10uF
VCC2.5
2
2
VAA2
2
VAA3
2
VAA1
2
VAA4
2
VCC3.3
2
R-
3
SDA
6
SCL
6
CLK+
3
R+
3
CSZ
6
B+
3
B-
3
CLK-
3
RIN
3
GNDR
3
SOG
3
VSYNC
3
GIN
3
HSYNC
3
BIN
3
GNDB
3
GNDG
3
PA[0..9]
5
PB[0..9]
5
G-
3
G+
3
HWRESET
6
6
INT
6
GNDB1
3
BIN1
3
GNDG1
3
VSYNC1
3
GIN1
3
HSYNC1
3
RIN1
3
GNDR1
3
SOG1
3
Volume
6
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
4/6
4.
SCALER
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