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Table A-1. Troubleshooting (continued)
Problem Solution
The image is blurred.
v Adjust the Focus on the projector.
v Press the Re-Sync button 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
bottom (trapezoid effect).
v Position the projector so it is as perpendicular to the
screen as possible.
v Use the Keystone button on the remote control or
projector to correct the problem.
The image is reversed or upside
down.
Check the Projection setting on the Setup menu of the
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
does not match the source image.
Adjust the Color Temp. and Gamma settings on the
Quality menu of the OSD.
There is no light from the
projector.
v Check that the power cable is securely connected.
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-2 C400 Wireless Projector: User’s Guide