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

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Lenovo C400 manual Osd