Planar PE191M, User Manual

19

A

PPENDIX 

C 

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)