Elo TouchSystems AMM19TK, AMM170TK, AMM18TK, AMM17TK manual Troubleshooting, User’s Guide

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.