ViewSonic pjl9371 manual The brightness and/or contrast are adjusted to an, extremely low level

Troubleshooting

Phenomena that may be easy to be mistaken for machine defects (continued)

Phenomenon	Cases not involving a machine defect	Reference
		page
	The brightness and/or contrast are adjusted to an
	extremely low level.	26
	Adjust the BRIGHTNESS and/or the CONTRAST settings to
	a higher level using the menu function.
Pictures appear	The ECO MODE function is working.
dark.	Select the NORMAL for the ECO MODE item in the SETUP	34
	menu.
	The lamp is approaching the end of its product
	lifetime.	53, 54
	Replace the lamp.
	Either the focus and/or horizontal phase settings are
	not properly adjusted.	18, 30
Pictures appear	Adjust the focus using the focus ring, and/or the H PHASE
blurry.	using the menu function.
	The lens is dirty or misty.	56
	Clean the lens referring to the section “Caring for the lens”.
RS-232C does	The SAVING function is working.	35
	Select NORMAL for STANDBY MODE item in the SETUP
not work.
	menu.

NOTE • Although bright spots or dark spots may appear on the screen, this is a unique characteristic of liquid crystal displays, and it does not constitute or imply a machine defect.

ViewSonic 63 PJL9371