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Chapter 4 Appendix
Section 1 Trouble Shooting
1. Projector do not project (power off)
Take off lens cap or not.
Connect power immediately after cut off the power. After cut off the power, when
cooling, projector cannot be operated immediately; the operation is working after it gets
cool (about five minutes).
Press “POWER” button or not, or power switch do not turn on, central power was cut
off because of power cut when operation.
Does Brightness adjust too low?
The input picture is all black or not. Some times the input picture is all black because of
screen protect.
Do not set bulb or it is not fixed up well, if do not set or become flexible, please cut off
the power, turn on power after bulb getting cool and set the bulb well.
2. Projector can not project (show signal )
Please confirm the signal is normal or not.
Please check the cable between signal source and projector is connecting or not.
Input switching settings match signal input port or not.
When using notebook, switch to outside output, make it output signal to the projector
not to the screen.
3. Picture illegibility
Focus’ adjusting is correct or not.
The project angle is too large or distance is too long.
When projector departure vertical central line of screen too much, it is hard to focus
since picture departure up/down/left/right.
Do not adjust the right color setting.
Please using menu function to change the setting of sharpness, brightness and color,
we suggest you to use “come back to original setting” in menu function, then adjust more
according working environment.
Lens is smirched and dew or not?
Please using muzzle or soft cloth scrape smirch; hard substance is not allow to wipe it.
4.
The image is too big or too small
.