Knoll Systems LED1081 user manual Troubleshooting Tips, Symptom Possible Causes Solution

5.2 Troubleshooting Tips

Table 5-1 provides some general guidelines for troubleshooting problems you may encounter with the LED1081. If the suggested solutions fail to resolve the problem or if you encounter an issue not described here, please contact Knoll Systems Technical Support.

Symptom	Possible Cause(s)	Solution
The projector does not turn on.	• The LED1081 is not plugged in or	• Ensure that the LED1081 is
	the AC outlet is not active.	plugged in and that the AC outlet
		is active.
The remote control does not work	• The batteries have run out.	• Replace the batteries.
correctly.	• IR code set mismatch between	• Press and hold the LIGHT and
	remote control unit and projector.	ENTER remote control buttons si-
		multaneously until the remote control
		back-lighting “blinks” (approximately
		five seconds). Then, try again.
The projector is on and OSD menus	• Incorrect source selection.	• Select the correct source.
appear, but there is no video image	• Source component is not turned on.	• Turn on the source.
on-screen.	• Source component is connected	• Check cable connection from
	incorrectly or not at all.	source component to projector.
A projected image from a DVD is	• DVD player is connected to the	• Turn off progressive scan on the
split or otherwise scrambled.	Component input and set to pro-	DVD player.
	gressive scan mode.
Image is blurred.	• The lens is not correctly focused.	• Adjust the focus with the remote control.
Image is too bright and/or lacks defini-	• Contrast is set too high.	• Lower the contrast setting.
tion in the bright areas of the image.
Image appears “washed out” and/or	• Brightness is set too high.	• Lower the brightness setting.
dark areas appear too bright.
Colors in the image are swapped;	• The Red/Pr, Green/Y or Blue/Pb	• Ensure that the source outputs are
for example, reds appear blue or	outputs from the source are con-	connected to the correct LED1081
vice versa.	nected to the wrong inputs on the	input.
	LED1081.
	Table 5-1: Troubleshooting Chart

56Maintenance and Troubleshooting