Proxima ASA Multimedia LCD Projectors manual Contrast

Chapter 5 • Troubleshooting

Problem	Likely Cause	Possible Solution(s)
No image on	Power switch off or	Projector must be on for
computer screen	projector not on	computer monitor to
		display; turn on
		projector.
	Cable not connected	Connect cable
Monochrome on	Computer was turned	Turn projector on and
color monitor	on before projector	re-boot computer
	Computer’s external	Set computer’s external
	video port set	port to “color”
	incorrectly
Streaks on monitor	Video cable plugged	Check and re-set cable
	into computer is	connections
	upside-down
Faint screen	Low intensity	Adjust BRIGHTNESS and
		CONTRAST
Jittery, fuzzy letters	Out of sync	Adjust SYNC control
Image off-center	Position controls (arrow	Adjust position controls;
	keys)	if image will not center,
		check for compatibility
		problems
	Compatibility problems	Verify projector is image
		compatible with one of
		the standards listed in
		Appendix A
	Misalignment or damage	Projector requires
	to optical elements	servicing
Cannot get entire	Compatibility problems	Verify that the projector
image on screen;		is image compatible with
scrambled image		one of the standards
		listed in Appendix A
“Shimmering” colors	SYNC or BRIGHTNESS	Adjust SYNC or
	out of adjustment	BRIGHTNESS
No video image	Video source(s)	Check video source(s)
projected		(composite or S-VHS)
		for power ON and
		proper operation
	Loose/improper cabling	Check and secure cabling
		between video source(s)
		and projector

5–2 • User’s Guide