Read Sharp LL-171A Service Manual online
LL-171A-W/B/LL-171G-W/B
CIRCUIT DIAGRAM & PWB LAYOUT
6 – 12
3
12
LED_G
LEFT
DVI-DDCSET
Standby
Mute
POWER
MODE/SEL
RIGHT
OUT-L+
Mute_key
LED_O
Mute_key
LEFT
MENU
LED_O
LED_GRN
LED_ORANGE
DVI-DSUB SELECT
MENU
DVI-DSUB SELECT
LED_G
POWER
MODE/SEL
RIGHT
OUT-L-
OUT-L+
OUT-R+
OUT-R+
OUT-R-
OUT-R-
OUT-L-OUT-L-
VCPU
VCPU
VCPU
VCPU
VCC5V
VCC12V
VCPU
VCPU
VCPU
R626
10K 1/16W
R607
10K
1/16W
CN601
Pin Header 2x7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R625
10K
1/16W
R608
100
1/16W
R640
0.5A FUSE
RN601
10K
1/16W
1
2
3
4
2
3
4
8
7
6
5
7
6
5
R633
BEAD 600
C609
0.1uF
C606
0.1uF
C605
0.1uF
R614
10K
1/16W
R634
NC
R605
10K
1/16W
U602
24C16
1
2
3
4
5
6
7
8
A0
A1
A2
GND
SDA
SCL
WP
VCC
R613
10K
1/16W
RN602
10K
1/16W
1
2
3
4
2
3
4
8
7
6
5
7
6
5
R611
470
1/16W
R621
BEAD 600
R622
BEAD 600
C601
0.1uF
R616
4.7K
1/16W
X
601
20MH
z
C608
0.1uF
R635
NC
U601
W78E65P-4
0
35
21
20
10
14
15
16
17
2
3
4
5
6
7
8
9
43
42
41
40
39
38
37
36
24
25
26
27
28
29
30
31
19
18
32
33
13
11
22
44
12
EA/VP
XTAL1
XTAL2
RESET
INT0/P3.2
INT1/P3.3
T0/P3.4
T1/P3.5
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P3.7/RD
P3.6/WR
PSEN
ALE/P
P3.1/TXD
P3.0/RXD
VSS
VCC
P4.3
CN603
1
2
3
4
R638
NC
R636
100
1/16W
FB603
600 OHM
FB602
600 OHM
Q601
PMBS
3906
3
2
1
U203
M
A
X
810S
T
R
3
2
1
VI
RESET
GND
R602
10K
1/16W
R627
10K
1/16W
R609
100
1/16W
R641
0.5A FUSE
R612
NC
R606
10K
1/16W
R604
10K
1/16W
+
C611
1uF/0805
C217
0.1uF
R617
220
1/16W
FB601
0.47OHM 1/10W
C604
22pF
R624
BEAD 600
C615
0.1uF
Q602
PMBS
3906
3
2
1
R618
220
1/16W
C607
0.1uF
R630
BEAD 600
C602
22pF
CN602
Wafer 2x8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C613
0.1uF
R632
10K
1/16W
R601
10K
1/16W
R615
10K
1/16W
R619
4.7K
1/16W
R620
BEAD 600
C614
0.1uF
R623
BEAD 600
C610
0.1uF
R631
10K
1/16W
R639
100K
1/16W
R637
0
1/16W
RN603
10K
1/16W
1
2
3
4
2
3
4
8
7
6
5
7
6
5
C612
0.1uF
R610
470
1/16W
onBACKLITE
2
INT
4
4
CSZ
4
DDC_DAT
3
HWRESET
4
DDC_CLK
3
VCPU
2
onPANEL_5V/3.3V
2
VCC5V
2,3
VCC12V
2
Volume
4
RXD
3
TX
D
3
SCL
4
SDA
4
DVI-DDCSET
3
AdjBACKLITE
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
6/6
6.
MPU
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