26User’s Guide

TROUBLESHOOTING

Before sending your LCD monitor for servicing, please check the troubleshooting list below to see if you can self-diagnose the problem.

Problems

Current Status

Remedy

 

 

 

 

 

LED ON

Using OSD, adjust brightness and contrast to

 

 

 

maximum or reset to their default settings.

 

 

 

 

 

LED OFF

Check the power switch.

No

 

 

 

 

Check if AC power cord is properly

Picture

 

 

connected to the AC adapter.

 

 

 

 

 

LED Blinking

Check if video signal cable is properly

 

 

 

connected at the back of monitor.

 

 

 

 

 

 

Check if the power to computer system is ON.

 

 

 

 

 

Unstable Picture

Check if the specification of graphics adapter

 

 

 

and monitor is in compliance which may be

 

 

 

causing the input signal frequency mismatch.

 

 

 

 

 

Display is

Using Auto Setup button, if still display

 

missing, center

 

abnormal picture then adjust CLOCK,

 

shift, or too small

 

CLOCK-PHASE, H-POSITION and V-

Abnormal

or too large in

 

POSITION with non-standard signals.

display size

 

 

Using OSD, in case of missing full-screen

Picture

 

 

 

 

image, please select other resolution in your

 

 

 

Operating System (Windows 95/98, NT) or

 

 

 

other vertical refresh timing.

 

 

 

 

 

 

Must wait for a few seconds after adjusting

 

 

 

the size of the image before changing or

 

 

 

disconnecting the signal or powering OFF the

 

 

 

monitor.

 

 

 

 

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Elo TouchSystems AMM19TK, AMM170TK, AMM18TK, AMM17TK manual Troubleshooting, Led Off