ATEN Technology Troubleshooting

KL1508 / KL1516 User Manual

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.	KL1508 / KL1516 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 KL1508 /
screen resolutions higher	KL1516’s integrated LCD monitor is 1280 x 1024. In
than 1280 x 1024, even	order to protect it from being damaged by resolutions that
though the KL1508 /	are beyond its display capability, we recommend that the
KL1516 supports 1600 x	screen resolutions of the connected computers be set to
1200 for remote computers.	1280 x 1024 or lower.
	If you wish to set the screen resolutions of the connected
	computers to something higher than 1280 x 1024, see
	Screen Resolutions Higher than 1280 x 1024, page 82.
When I switch to one of the	The maximum screen resolution of the KL1508 /
computers on my	KL1516’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 KL1508 / KL1516’s LCD
All I see is a black screen.	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 KL1508 / KL1516’s
	external console ports. Use the external console to
	access the problem computer and reduce its resolution to
	1280 x 1024.
	Note: Although the LCD monitor only supports video
	resolutions of up to 1280 x 1024, the KL1508 / KL1516,
	itself can support video resolutions up to 1600 x 1200 @
	60 Hz. If you wish to set the screen resolutions of the
	connected computers to something higher than 1280 x
	1024, see Screen Resolutions Higher than 1280 x 1024,
	page 82 for details.

80