Sceptre Technologies X20WG-Naga Manuale Utente

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19                                                             Rev.3 
Appendix C 
Troubleshooting  
This LCD monitor comes pre-adjusted 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.  
Before applying any of the following troubleshooting procedures, you should 
first apply the Auto Adjust option in the OSD menu. 
PROBLEM: Display is unclear and unstable 
To stabilize and clarify your display, open the OSD and adjust the clock and 
phase to obtain a clear display or change the resolution to the display’s optimal 
setting 1680 x 1050 at 60hz.  Make sure you use auto adjust function after 
changing the resolution. 
PROBLEM: There is no LCD display 
If there is no display on the LCD, refer to the following: 
1.  Make sure that the power indicator on the LCD monitor is lit, 
that all connections are secure, and that the system is running 
on the correct timing.  Refer to Appendix B for information on 
timing. 
2.  Turn off the LCD monitor and then turn it back on again.  Press 
the OSD Menu button (refer to Chapter 2) once and then press 
one of the Adjustment Control buttons several times. If there is 
still no display, press the other Adjustment Control button 
several times. 
3.  If step 2 does not 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