Madrigal Imaging MP-8, MP-9 manual Symptom Display is very faint

MAINTENANCE

Symptom: The upper portion of the display is waving, tearing, or jittering.

Cause/Remedy: 1) This sometimes occurs when the source is a VCR or video signal. Change the sync mode by selecting the fast/slow sync option from

the Picture Adjust menu ( PIC 5 ).

Symptom: The upper or lower portions of the display are cut off.

Cause/Remedy: 1) A top or bottom blanking adjustment may be required. Select the appro- priate blanking adjustment option from the Picture Adjust Menu ( PIC ) then adjust the amount of blanking. Note: A 0% slidebar level indicates no blanking.

2)A phase adjustment may be required. Select Position from the Picture Adjust menu ( PIC ). Adjust position so that the entire picture is visible and centered.

Symptom: One side of the display is cut off.

Cause/Remedy: 1) A left or right blanking adjustment may be required. Select the appro- priate blanking adjustment option from the Picture Adjust menu ( PIC ) then adjust the amount of blanking. A 0% slidebar level indicates no blanking.

2)A position adjustment may be required. Select Position from the Picture Adjust menu ( PIC ). Adjust phase so that the entire picture is visible and centered.

3)The retrace time of the projector may be longer than the horizontal

	blanking time of the signal. Press UTIL 1 8 to change projector retrace
	time to Short.
Symptom:	Transitions between colors are fuzzy.
Cause/Remedy:	1) Convergence may require adjustment. Perform a convergence on the
	selected source.

2)The projector may not be optically aligned for the installation. Has the throw distance changed significantly since the last optical alignment? If so, have the projector re-aligned. Refer to section 2.8, Optical Alignment.

Symptom:	The display is very faint.
Cause/Remedy:	1)	Contrast or brightness settings may be set too low.
	2)	The projection room may be too bright. Lower the intensity of
		projection room lighting. Reduce light reflections as much as possible.
	3)	The projection room walls and ceilings may be too reflective. Reflective
		ceilings, walls, and floors should be kept to a minimum. The best
		projection rooms are dark with matte finishing.

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