Texas Instruments DW30, MATRIX 3000 Symptom f The display is faint…, f Data is cropped from edges

Section 5: Troubleshooting

Symptom f The display is faint…

CAUSE / REMEDY: 1. Brightness and/or contrast may be set very low.

2.The source may be double terminated. Ensure the source is terminated only once.

3.The source (if non-video) may need a different sync tip clamp location.

Symptom f The upper portion of the display is waving, tearing or jittering…

CAUSE / REMEDY: 1. This can sometimes occur with video or VCR sources. Check your source.

Symptom f Portions of the display are cut off or wrap to the opposite edge…

CAUSE / REMEDY: 1. Resizing and/or blanking may need adjustment.

Symptom f The display appears compressed (vertically stretched)…

CAUSE / REMEDY: 1. The frequency of the pixel sampling clock is incorrect for the current source.

2.Resizing, vertical stretch and positioning options may be improperly adjusted for the incoming source signal.

Symptom	f Data is cropped from edges
CAUSE / REMEDY:	1.	Check settings for Blanking.
	2.	If incoming data is still missing from the image, reduce the image size to within
		the display area available in the projector.
Symptom	f Display quality appears to drift from good to bad, bad to good…
CAUSE / REMEDY:	1.	The source input signal may be of low quality.
	2.	The H or V frequency of the input may have changed at the source end.
Symptom	f The display has suddenly frozen…
CAUSE / REMEDY:	1.	If the screen blacks out inexplicably, it is possible that excessive voltage noise on
		the AC or ground input has interrupted the projector’s ability to lock on to a
		signal. Power down the projector and disconnect from AC. Then plug in again and
		power up as usual.
Symptom	f Colors in the display are inaccurate…
CAUSE / REMEDY:	1.	The color, tint, color space, color temperature and/or other settings may require
		adjustment.
	2.	Make sure you are using the proper channel for this source.
	3.	Check Color Wheel Calibration.
Symptom	f The display is not rectangular…
CAUSE / REMEDY:		1. Check leveling of the projector. Make sure that the lens surface and screen are
		as parallel to each other as possible.

2.Is the vertical offset correct? Adjust as necessary using the vertical offset knob.

3.Check if Keystone is incorrectly set.

Symptom f The display is “noisy”…

CAUSE / REMEDY: 1. Display adjustment at your input source may be required. Adjust pixel tracking, phase and filter. Noise is particularly common on YPbPr signals from a DVD player. (If using a PC source, adjust using a high-frequency test pattern with one pixel on/off throughout.)

5-2 Christie DS+60/DW3K/Matrix 3000 User’s Manual 013-100149-02 Rev. 1 (01/07)