ATEN Technology KL1508A, KL1516A Troubleshooting

	Appendix
Troubleshooting
General
Problem	Solution
Keyboard and/or mouse do	For computers with PS/2 connectors, if you are using 2L-
not work after computer	520xP cables, make sure that all the connectors
boots up.	(keyboard, video, and mouse) are plugged into their ports
	on the computer before starting the computer. Plugging
	the cables in after the computer has booted will not
	resolve the problem.
When I emulate the Sun	To go into OK Mode, use the following key sequence:
keyboard, I can’t go into OK	1. Press and release [Ctrl].
Mode ([Stop] [A]).	2. Press and hold [T].
	3. Press and hold [A].
	4. Release [T] and [A] together.
There are ghost images on	The distance between the external console and the
the external monitor.	KL1508A / KL1516A is too great. The maximum VGA
	cable distance should not exceed 20m and, in some
	cases, may need to be shorter. Replace the VGA cable
	with one of an appropriately short length.
I can’t set the computers’	The maximum screen resolution of the KL1508A /
screen resolutions higher	KL1516A’s integrated LCD monitor is 1280 x 1024. In
than 1280 x 1024.	order to protect it from being damaged by resolutions that
	are beyond its display capability, we recommend that the
	screen resolutions of the connected computers be set to
	1280 x 1024 or lower.
When I switch to one of the	The maximum screen resolution of the KL1508A /
computers on my	KL1516A’s integrated LCD monitor is 1280 x 1024. The
installation, the LCD	screen resolution of the problem computer is set to
monitor screen goes blank.	something that is too high for the KL1508A / KL1516A’s
All I see is a black screen.	LCD monitor to display.
	To resolve the problem, connect an external KVM
	console (with a monitor capable of displaying the problem
	computer’s screen resolution) to the KL1508A /
	KL1516A’s external console ports. Use the external
	console to access the problem computer and reduce its
	resolution to 1280 x 1024.

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