Lenovo C400 manual Osd

Table A-1. Troubleshooting (continued)

Problem	Solution
The image is blurred.	v Adjust the Focus on the projector.
	v Press the Re-Syncbutton on the remote control or
	the projector.
	v Ensure the projector-to-screen distance is within the
	range specified.
	v Check that the projector lens is clean.
	v Make sure the output resolution from the PC is 1024
	x 768, the native resolution of the projector.
The image is wider at the top or	v Position the projector so it is as perpendicular to the
bottom (trapezoid effect).	screen as possible.
	v Use the Keystone button on the remote control or
	projector to correct the problem.
The image is reversed or upside	Check the Projection setting on the Setup menu of the
down.	OSD.
The image is streaked.	v Set the Frequency and Tracking settings on the Setup
	menu of the OSD to the default settings.
	v To ensure the problem is not caused by a connected
	PC’s video card, connect to another computer.
The image is flat with no contrast.	Adjust the Contrast setting on the Quality menu of the
	OSD.
The color of the projected image	Adjust the Color Temp. and Gamma settings on the
does not match the source image.	Quality menu of the OSD.
There is no light from the	v Check that the power cable is securely connected.
projector.	v Ensure the power source is good by testing with
	another electrical device.
	v Restart the projector in the correct order and check
	that the Power LED is green.
	v If you have replaced the lamp recently, try resetting
	the lamp connections. Make sure the lamp cover is
	flush with the projector case when closed.
	v Replace the lamp module. “Replacing the projector
	lamp” on page 5-1.
	v Put the old lamp back in the projector and have the
	projector serviced.
The lamp goes off.	v Power surges can cause the lamp to turn off. Press
	the Power button twice to turn off the projector.
	When the Lamp Ready LED is on, press the Power
	button.
	v Replace with a new lamp module.“Replacing the
	projector lamp” on page 5-1.
	v Put the old lamp back in the projector and have the
	projector serviced.

A-2C400 Wireless Projector: User’s Guide