Tatung TLM-1705 - Manual (Page 15)

10
A
PPENDIX
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Troubleshooting
Troubleshooting Procedures
This LCD Monitor was pre-adjusted in the factory with standard VGA timing. Due to
output timing differences among various VGA cards, you may initially experience an
unstable or unclear display when a new display mode or new VGA card is selected.
This LCD Monitor Supports Multiple VGA Modes. Refer to Addendum for a listing
of the factory preset modes supported by this LCD Monitor.
PROBLEM: Display is Unclear and Unstable
To stabilize and clarify your display, follow this procedure in this order:
1. It’s best to adjust the display on a screen displaying of vertical lines. In Windows, load a
wallpaper bitmap that has vertical lines in it. (or you can select the window shut down screen)
2. After you have the wallpaper loaded, open the OSD and select the “Clock” function. Press
the top (or bottom) Adjustment Control button and continue pressing the button until you see
vertical dark and light lines across the screen.
3. When you can see distinct light and dark vertical bands, stop pressing the Adjustment
Control button. Now press the opposite (top or bottom) Adjustment Control button. The
vertical dark and light bands will decrease in number. Keep pressing the button until the
distinct bands disappear and you have a clear display.
4. Next, press the Function Control button to choose the “Phase” function. The Phase will
adjust the horizontal display. Press the top (or bottom) Adjustment Control button and you
will see horizontal dark and light lines appear. The number of lines increases as you press
the button. Now press the bottom (or top) Adjustment Control button until the lines
disappear and you have a clear display.
PROBLEM: There is no LCD Display
If there is no display on the LCD, please perform the following steps:
1. Make sure that the power indicator on the LCD Monitor is lit, all connections are secure, and
the system is running on the correct timing. Refer to the Addendum for information on timing.
2. Turn off the LCD Monitor and then turn it back on again. Press the upper Function Control
button (refer to Chapter 2) once and then press either the upper or lower Adjustment Control
button several times. If there is still no display, press the other 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, and the
LCD Monitor’s power LED is blinking, the output timing of the PC’s VGA card may be out of
the LCD’s synchronous range. Please change to an alternate mode listed in Addendum or
replace the VGA card and repeat steps 1 and 2.
4. If the PC doesn’t function with the CRT monitor neither, check BIOS to see if there is a dual
scan setting under the display mode item. Set the BIOS display mode to Dual Scan or CRT
and try again. If there is still no display, then there may be a problem with your system.
Contact technical support.
5. If the power LED is not lit, check to see if the AC power connector is securely connected.
Verify that the AC adapter LED is lit. If the AC adapter LED is not lit, please contact your
dealer for assistance.