Acer AL1917X - Manual (Page 11)

PROBLEM There is no picture on LCD Monitor
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 cardis 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.
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 "FOCUS" 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.
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.
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 Input Signal" .
Caution: Do not attempt to service the monitor yourself or open the computer yourself.
Please refer all servicing to qualified service personnel if the problems cannot be solved in "Troubleshooting" section.
PROBLEM Picture is unclear and unstable
PROBLEM There is no picture on LCD Monitor