47
FSDATAU15
FSDATAU0
AVDD18_ADC
TXA2+
C814
0.1uF
TXA2+
TXBC+
MVref
C811
0.1uF
+3.3DVDD
TXAC+
L725
120 OHM
TXA0+
FSADDR7
FSADDR4
HSY NC
4
TXBC-
F
S
A
D
D
R
6
WR
7
VDDC
FSADDR11
+3.3AVDD 3
TXB2+
AVDD_LPLL
+3.3DVDD
TXA0-
MVref
F
S
A
D
D
R
7
VSY NC
4
Volume
8
VDDM
+3.3AVDD
FSBKSEL0
FSADDR9
C427 0.1uF
+
C795
10uF/16V
C779
0.1uF
C425
0.1uF
GIN
4
F
S
A
D
D
R
4
CLK+
4
+1.8V_VDD
TXA1+
TXA3+
+
C792
10uF/16V
+1.8V_VDD
C803
0.1uF
VLCD
AVDD_APLL
FSDATAU12
C775
0.1uF
+
C771
10uF/16V
ALE
TXB3-
AD3
7
+2.5MVDD
TXB1-
TXB0-
+
C787
10uF/16V
L716
120 OHM
FSBKSEL1 6
RXC-
C773
0.1uF
C806
0.1uF
DGND
FSDATAU23
TXA1-
TXA3-
AD2
AD0
7
FSDATAU22
RX1-
TXA2-
C785
0.1uF
C784
0.1uF
RD
FSADDR10
X401
14.318MHz
TXA0+
FSDATAU8
TXB1+
F
S
A
D
D
R
1
GNDB
4
9/2 modify
HWRESET
FSBKSEL1
R
4
6
6
3
6
0
1
/1
0
W
FSDQSU3 6
AVDD_APLL
+3.3DVDD
TXB2+
C801
0.1uF
R449
33
1/16W
FSCLK-
6
/FSRAS
6
AVDD_MCLK
FSDATAU4
C815
0.1uF
/FSWE
L721
120 OHM
R451
1K
1/16W
L722
120 OHM
B+
4
L719
120 OHM
FSDATAU[0..31] 6
AD1
F
S
A
D
D
R
1
0
L715
120 OHM
CN407
CONN
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
G-
4
FSCLK+, FSCLK- s hould be route d
lik e a diffe re ntail pair
TCLK
FSCLK-
+3.3DVDD 3
+1.8V_VDD
TXB3+
C418
22pF
FSDATAU18
FSDATAU21
C776
0.1uF
RIN
4
FSDQSU0 6
AVDD_DVI
AVDD_MPLL
AVDD18_DVI
TXB1-
C799
0.1uF
C421
0.1uF
G1773-J-AC-X-1-070309
J
MST9259V
Custom
5
8
Friday , March 09, 2007
Title
Size
Document Number
Rev
Date:
Sheet
of
AVDD18_DVI
TXA1-
AD3
D
V
I
I
N
P
U
T
TXA2-
TXB0+
C788
0.1uF
+2.5MVDD 3
+1.8V_VDD
FSDATAU7
C423
0.001uF
ALE
7
FSADDR[0..11] 6
AVDD_ADC
FSDATAU16
TXA3+
RX0-
C783
0.1uF
C419
22pF
TXA1+
FSDQM1U
C790
0.1uF
R450
1K
1/16W
BIN
4
SOG
4
TXB1+
FSDATAU28
FSADDR[0..11]
C798
0.1uF
C804
0.1uF
+3.3DVDD
FSDATAU14
+1.8V_VDD 3
B-
4
Unloade d trace im pe dance on this inte rface is 90 Ohm
Loade d trace im pe dace w ith DRAM load is 65 Ohm (for 2.5 inch total trace
le ngth)
AVDD_DVI
+
C793
10uF/16V
/FSWE
6
DGND
F
S
A
D
D
R
5
R
4
6
5
3
6
0
1
/1
0
W
F
S
A
D
D
R
0
FSDATAU24
C428
0.1uF
TXB0-
F
S
A
D
D
R
9
R-
4
V
G
A
I
N
P
U
T
R443
10K
1/16W
R442
100
1/16W
C796
0.1uF
AD1
7
+3.3AVDD
FSDATAU5
HWRESET
7
+1.8V_VDD
FSDATAU19
FSDATAU26
F
S
A
D
D
R
8
FSADDR1
C809
0.1uF
RD
7
AVDD_PLL2
C780
0.1uF
DVI_DAT
4,7
VDDP
FSADDR8
+
C777
10uF/16V
AD2
7
TXAC-
VDDC
FSCKE
6
XTAL
INT
WR
M
C
U
I
N
T
E
R
F
A
C
E
MVref
+
C424
220uF/16V
VDDP
TXB0+
+
C794
10uF/16V
C781
0.1uF
L718
120 OHM
F
S
A
D
D
R
3
FSDQM1
6
+
C807
10uF/16V
+3.3DVDD
RXC+
AVDD_PLL
FSDATAU11
ADJ_PWM
GNDG
4
+2.5MVDD
TXAC+
RX0+
VLCD
3
R
4
4
5
3
6
0
1
/1
0
W
G+
4
R
4
4
7
3
6
0
1
/1
0
W
FSADDR6
FSDATAU10
C800
0.1uF
/FSCAS
6
VDDM
/FSCAS
FSDATAU13
FSDATAU6
C797
0.1uF
FSBKSEL0 6
FSDQM0
6
AVDD_PLL
DVI_CLK
4,7
(5mm)
AD0
R444
390
1/16W
DGND
C812
0.1uF
TXA3-
FSDATAU[0..31]
L724
120 OHM
+
C772
10uF/16V
R
4
4
6
3
6
0
1
/1
0
W
L726
120 OHM
L404
120 OHM
FSADDR5
C802
0.1uF
AdjBACKLITE
3
FSDQSU2 6
TXB3+
FSADDR0
/FSRAS
F
S
A
D
D
R
2
FSDATAU17
AVDD18_ADC
FSADDR3
FSDQM0U
+3.3AVDD
TXBC-
C422
0.1uF
R448
33
1/16W
C805
0.1uF
FSDQSU1 6
FSDATAU9
FSDATAU1
RX1+
GNDR
4
CLK-
4
DGND
AVDD_MPLL
MVref
TXB3-
FSDATAU31
U401
MST9259BH-LF-165
186
185
1
8
4
179
178
177
176
214
213
218
217
2
0
4
192
194
2
2
0
2
1
9
2
1
6
2
1
5
208
207
210
2
3
1
57
56
55
54
44
43
42
41
2
2
1
9
1
8
15
13
1
2
1
0
9
30
29
2
8
27
26
2
5
24
23
2
4
6
7
3
40
3
7
36
35
3
4
33
32
3
1
58
59
6
0
6
1
63
62
64
67
68
8
21
1
5
1
3
8
77
2
3
4
1
3
3
1
2
9
174
6
9
256
145
180
71
72
73
74
1
1
1
7
1
6
2
0
7
0
152
39
1
8
1
199
1
1
2
8
146
1
8
2
80
1
8
3
202
211
99
1
5
9
2
4
3
2
4
2
14
7
8
212
209
2
3
2
2
3
3
2
4
1
100
1
6
0
1
3
4
5
75
76
81
82
83
84
85
86
8
7
8
8
89
94
90
9
6
2
5
3
155
156
157
158
1
6
1
162
163
164
165
166
167
168
169
1
7
0
1
7
1
172
153
1
2
5
1
2
7
1
3
0
1
3
1
1
3
2
135
136
137
138
139
140
1
4
1
1
4
2
1
4
3
1
4
4
147
148
149
45
2
2
1
2
2
6
2
2
7
2
2
8
2
2
9
2
4
4
2
3
6
2
3
7
2
3
8
2
3
9
2
4
0
2
4
5
2
4
6
2
4
7
2
4
8
2
4
9
2
5
0
2
3
0
193
196
251
188
187
254
255
175
53
52
51
5
0
4
9
4
8
46
47
65
66
7
9
91
92
93
9
5
97
98
101
102
1
0
3
104
1
0
5
106
1
0
7
1
0
8
109
110
1
1
1
112
113
1
2
3
1
2
2
114
115
116
1
1
7
1
1
8
1
1
9
1
2
0
1
2
1
1
2
6
1
2
4
150
154
173
189
190
195
198
197
200
201
2
5
2
2
2
5
2
2
4
2
2
3
2
2
2
2
0
3
191
206
205
2
3
5
FG0N
FG0P
V
D
D
P
FR3P
FR2N
FR2P
FR1N
BR3N
BR3P
BG0N
BG0P
G
N
D
FG3N
FB0N
B
G
1
N
B
G
1
P
V
D
D
P
G
N
D
BR0N
BR0P
BR1N
B
B
2
P
RIN1P
RIN1M
SOGIN1
GIN1P
RIN0M
SOGIN0
GIN0P
GIN0M
A
V
D
D
1
8
_
D
V
I
A
V
D
D
_
P
L
L
G
N
D
DDC_SCL
DDC_HPD
V
D
D
P
G
N
D
HWRESET
RX1P
RX1N
A
V
D
D
_
D
V
I
RX0P
RX0N
G
N
D
RXCKP
RXCKN
V
D
D
C
GPIO[7]
GPIO[8]
MDA
G
N
D
BIN0P
A
V
D
D
_
M
P
L
L
XIN
XOUT
G
N
D
RX2P
RX2N
G
N
D
HSY NC1
VSY NC1
G
N
D
A
V
D
D
_
A
D
C
REFM
REFP
RMID
DBUS[2]
DBUS[3]
MCL
REXT
V
D
D
M
A
V
D
D
_
P
L
L
GPIO[2]
B
B
3
N
M
A
D
R
[1
1
]
G
N
D
FR0N
G
N
D
GPIO[5]
MDATA[11]
FR3N
ALE
RDZ
WRZ
INT
G
N
D
G
N
D
G
N
D
A
V
D
D
_
D
V
I
V
D
D
P
MDATA[5]
BIN0M
V
D
D
C
FB3P
GPIO[6]
V
D
D
M
MDATA[10]
G
N
D
DQS[3]
G
N
D
FCLKN
BR2P
MDATA[17]
V
D
D
M
G
P
O
[4
]
G
P
O
[3
]
DDC_SDA
V
D
D
C
BR2N
BR1P
B
B
2
N
B
B
3
P
G
P
O
[2
]
MDATA[16]
V
D
D
C
V
D
D
M
GPIO[9]
GPIO[0]
GPIO[1]
MDATA[31]
MDATA[30]
MDATA[29]
MDATA[28]
MDATA[27]
MDATA[26]
G
N
D
V
D
D
M
MDATA[25]
MDATA[20]
MDATA[24]
V
D
D
C
G
N
D
MDATA[2]
MDATA[1]
MDATA[0]
DQS[0]
G
N
D
NC
NC
NC
NC
NC
NC
NC
NC
V
D
D
P
G
N
D
NC
MDATA[4]
M
A
D
R
[7
]
M
A
D
R
[9
]
G
N
D
A
V
D
D
_
P
L
L
2
M
A
D
R
[1
0
]
DQM[0]
DQS[1]
MDATA[15]
MDATA[14]
MDATA[13]
MDATA[12]
G
N
D
V
D
D
M
V
D
D
C
G
N
D
MDATA[9]
MDATA[8]
MDATA[7]
RIN0P
B
G
2
P
G
N
D
B
B
0
P
B
B
0
N
B
B
1
P
G
P
O
[5
]
V
D
D
P
B
S
P
F
S
P
G
P
O
[0
]
G
P
O
[1
]
G
P
O
[6
]
G
P
O
[7
]
G
P
O
[8
]
G
P
O
[9
]
G
N
D
A
V
D
D
_
L
P
L
L
B
B
1
N
FB0P
FB1N
PWM[0]
FG1N
FG1P
GPIO[3]
GPIO[4]
FR1P
GIN1M
BIN1P
BIN1M
A
V
D
D
1
8
_
A
D
C
G
N
D
A
V
D
D
_
A
D
C
HSY NC0
VSY NC0
DBUS[0]
DBUS[1]
G
N
D
MDATA[23]
MDATA[22]
MDATA[21]
G
N
D
MDATA[19]
MDATA[18]
DQS[2]
DQM[1]
G
N
D
MVREF
V
D
D
M
MCLKE
A
V
D
D
_
M
C
L
K
G
N
D
MCLKZ
MCLK
G
N
D
BADR[1]
BADR[0]
M
A
D
R
[5
]
M
A
D
R
[4
]
RASZ
CASZ
WEZ
V
D
D
M
M
A
D
R
[0
]
M
A
D
R
[1
]
M
A
D
R
[2
]
M
A
D
R
[3
]
M
A
D
R
[8
]
M
A
D
R
[6
]
MDATA[6]
MDATA[3]
FR0P
FG2P
FG2N
FB1P
FB2N
FB2P
FB3N
FCLKP
V
D
D
P
V
D
D
C
B
G
3
N
B
G
3
P
B
G
2
N
V
D
D
P
FG3P
BCLKN
BCLKP
G
N
D
FSDATAU3
+3.3AVDD
INT
7
AVDD_LPLL
FSCLK+
6
VDDM
RX2-
R+
4
TXA0-
L717
120 OHM
C774
0.1uF
FSADDR2
FSDATAU30
C420 0.1uF
TXB2-
C808
0.1uF
+
C786
10uF/16V
C782
0.1uF
AVDD_MCLK
+3.3AVDD
C816 0.1uF
L727
120 OHM
C778
0.1uF
AVDD_PLL2
TXAC-
FSCLK+
TXB2-
C810
0.1uF
AVDD_ADC
AVDD_DVI
RX2+
FSDATAU25
F
S
A
D
D
R
1
1
TXBC+
L720
120 OHM
C789
0.1uF
+
C791
10uF/16V
For AOC LCD I/F-
F/W default set Odd/Even Swap.
4/13/93
L723
120 OHM
FSDATAU29
FSDATAU27
FSDATAU20
FSDATAU2
C813
0.1uF
Summary of Contents for AL2251W
Page 1: ...1 Acer AL2251W Service Guide ...
Page 9: ...9 LCD Monitor General Specification ...
Page 10: ...10 ...
Page 11: ...11 LCD Panel Specification General Specifications ...
Page 12: ...12 Optical Specifications ...
Page 13: ...13 Supported Timing ...
Page 24: ...24 b The Description For Function Control LEDS ...
Page 25: ...25 ...
Page 31: ...31 Fig 7 6 Remove the screws to remove the frame of the panel Fig 8 9 Fig 8 Fig 9 ...
Page 32: ...32 Fig 10 7 Remove the screws to remove the base back cover Fig 11 12 Fig 11 Fig 12 ...
Page 34: ...34 10 Remove the screws to remove the main board Fig 15 16 Fig 15 Fig 16 ...
Page 41: ...41 Exploded Diagram Model AL2251W ...