BOXLIGHT CP-775I user manual Symptom, ENGLISH-22, TROUBLESHOOTING continued

TROUBLESHOOTING (continued)

Symptom

Before requesting repair, consult the following chart. If the situation cannot be corrected, then contact BOXLIGHT at 800-762-5757 or 360-779-7901.

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.
					8,9
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			10
		transmitter to set.
No video or audio.
	No signal input.	Connect correctly.			7,8
	The projector is not correctly	Connect correctly.			7,8
	connected.
Video is present but	The volume is set to minimum.	Press VOLUME	on the remote		11,15
		control or display the menu screen
no audio.		and adjust the volume.
	Mute is turned on.	Press the MUTE	button.		11
	The projector is not correctly	Connect correctly.			7,8
	connected.
Audio is present but
	The brightness adjustment knob	Select BRIGHT with the MENU			12
no video.	is rotated fully clockwise.	button and the press the		button.
	The lens cap is still attached.	Remove the lens cap.			9
Colors are pale and	Color density and color				12
color matching is	matching are not correctly	Adjust the video.
poor.	adjusted.
	Brightness and contrast are not	Adjust the video.			12
	correctly adjusted.
Images are dark.	The lamp is nearing the end of	Replace with a new lamp.			17
	its service life.
	WHISPER mode is set.	Clear WHISPER mode.			15
Video is blurred.	Focus or H PHASE is out of	Adjust the focus or H PHASE.			9,12
	adjustment.

ENGLISH-22