Dukane 28A8751 user manual Symptom Possible cause Remedy

TROUBLESHOOTING (continued)

Symptom

Before requesting repair, check in accordance with the following chart. If the situation cannot be corrected, then contact your dealer.

Table 11. Symptom

Symptom	Possible cause	Remedy		Page
	The main power switch is not	Turn on the main power switch.
The power is not	turned on.
				7,8
turned on.	The power cord is	Plug the power cord into an AC
	disconnected.	power outlet.
	The input is not correctly set.	Use the projector or remote control		9
No video or audio.		transmitter to set.
	No signal input.	Connect correctly.		6,7
	The projector is not correctly	Connect correctly.		6,7
	connected.
Video is present but	The volume is set to minimum.	Press VOLUME	on the remote	10,14
no audio.		control or display the menu screen
		and adjust the volume.
	Mute is turned on.	Press the MUTE	button.	10
	The projector is not correctly	Connect correctly.		6,7
	connected.
Audio is present but
	The brightness is set to	Select BRIGHT with the MENU		11
no video.	minimum.	button and the press the button.
	The slide lens door is still	Open the slide lens door.		8
	closed.
Colors are pale and	Color density and color			11
color matching is	matching are not correctly	Adjust the video.
poor.	adjusted.
	Brightness and contrast are not	Adjust the video.		11
	correctly adjusted.
Images are dark.
	The lamp is nearing the end of	Replace with a new lamp.		16,17
	its service life.
Images are blurred.	Focus or H PHASE is out of	Adjust the focus or H PHASE.		8,11
	adjustment.

ENGLISH

ENGLISH-21