Acer AL713 Manuel de l'utilisateur - Page 8

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Acer AL713 Manuel de l'utilisateur

Standard Timing Table

If the selected timing is NOT included in table below, this LCD monitor will use the most suitable available
timing.
H. Freq.
Resolution
(KHz)
640 x 350
31.469
640 x 400
24.830
640 x 400
31.469
640 x 400
31.50
640 x 480
31.469
640 x 480
35.00
640 x 480
37.861
640 x 480
37.500
720 x 400
31.469
800 x 600
35.156
800 x 600
37.879
800 x 600
48.077
800 x 600
46.875
832 x 624
49.725
1024 x 768
48.363
1024 x 768
53.964
1024 x 768
56.476
1024 x 768
60.023
1024 x 768
60.04
1280 x 1024
63.981
1280 x 1024
79.976
Note: 1.
When the in put display mode is not 1280 x 1024, the image is smoothly expanded to 1280 x 1024 dots with the PW164 scaling
engine. After expansion from 650x350, 640x400, 640x480, 720x400, 832x624, 800x600, and 1024x768 resolution, the text
may look not so sharp, and the Graphics may look not so proportional.
2. 640x400 56Hz and 1024x768 66Hz modes cannot be supported when Digital (TMDS) input.

Troubleshooting

This LCD Monitor has pre-adjusted using factory standard VGA timings. Due to the output timing differences among various
VGA cards in the market, users may initially experience an unstable or unclear display whenever a new display mode or new
VGA card is selected.
Attention
This LCD Monitor Supports Multiple VGA Modes.
Refer to the Standard Timing Table for a listing of modes supported by this LCD Monitor.
PROBLEM Picture is unclear and unstable
The picture is unclear and unstable, please perform the following steps :
1. Enter PC to "Shut Down Windows" status while you're in MS-Windows environment.
2. Check the screen to see if there's any black vertical stripes appear. If there are, take advantage of the "Clock" function
in OSD menu and adjust (by increment or decrement numbers) until those bars disappear.
3. Move to "Phase" function in OSD menu again and adjust the monitor screen to its most clear display.
4. Click "No" on "Shut Down Windows" and back to the normal PC operating environment.
PROBLEM There is no picture on LCD Monitor
If there's no picture on the LCD Monitor, please perform the following steps:
1. Make sure the power indicator on the LCD Monitor is ON, all connections are secured, and the system is running on
the correct timing. Refer to Chapter 3 for information on timing.
2. Turn off the LCD Monitor and then turn it back on again. If there is still no picture, press the Adjustment Control
button several times.
3. If step 2 doesn't work, connect your PC system to another external CRT. If your PC system Functions properly with
a CRT Monitor but it does not function with the LCD Monitor, the output timing of the VGA card may be out of the
LCD's synchronous range. Please change to an alternative mode listed in the Standard Timing Table or replace the
VGA card, and then repeat steps 1 and 2.
PROBLEM There is no picture on LCD Monitor
If you have chosen an output timing that is outside of the LCD Monitor's synchronous range (Horizontal: 24 ~ 80 KHz
and Vertical: 56 ~ 75 Hz), the OSD will display a "Out of Range" message. Choose a mode that is supported by your LCD
Monitor.
Also, if the signal cable is not connected to LCD monitor at all or properly, the monitor screen will display a message "No
V. Freq.
Pixel Freq.
(Hz)
(MHz)
70.087
25.175
56.420
21.050
70.087
25.175
70.15
25.197
59.940
25.175
66.67
30.24
72.809
31.500
75.000
31.500
70.087
28.322
56.250
36.000
60.317
40.000
72.188
50.000
75.000
49.500
74.55
57.2832
60.004
65.000
66.132
71.664
70.069
75.000
75.029
78.750
75.02
80.00
60.020
108
75.025
135
8
H/V Sync.
Mode
Polarity
+/-
VGA-350
-/-
NEC PC9801
-/+
VGA-400-GRAPH
-/-
NEC PC9821
-/-
VGA-480
-/-
APPLE MAC-480
-/-
VESA - 480 - 72Hz
-/-
VESA - 480 - 75Hz
-/+
VESA-400-TEXT
+/+
SVGA
+/+
VESA-600-60 Hz
+/+
VESA-600-72 Hz
+/+
VESA-600-75 Hz
-/-
APPLE MAC-800
-/-
XGA
+/+
COMPAQ-XGA
-/-
VESA-768-70 Hz
+/+
VESA-768-75 Hz
-/-
APPLE MAC-768
+/+
SXGA
+/+
SXGA