Section 5

Troubleshooting

If the projector does not appear to be operating properly, note the symptoms present and use the following guide to assist you. If you cannot resolve the problems yourself, contact your dealer for assistance.

NOTE: A qualified service technician is required when opening the projector to diagnose any “probable cause”.

5.1Displays

Symptom f The projector is on but there’s no display...

CAUSE / REMEDY:

1. Was a lens cover accidentally left on? Remove lens cover.

 

2.

Make sure the shutter is OPEN.

 

 

3.

Is the lamp ignited? It could take up to 3 attempts to strike a lamp. With a 90

 

 

second wait period in between each attempt it could take a total of 4.5 minutes to

 

 

turn the lamp on. Check LAMP STATUS.

 

4.

Is the correct input selected?

 

 

5.

Is the source connected properly? Check the cable connections and make sure the

 

 

correct source is selected.

 

 

6.

Can you access test patterns? Make sure there is not a full black test pattern

 

 

selected for display—press Menu

to access test patterns, then cycle patterns

 

 

with

keys.

 

Symptom

f Severe motion artifacts…

 

CAUSE / REMEDY:

1.

Most likely there is a synchronization problem with reversed 3/2 pull-down in

 

 

60Hz-to-24Hz film-to-digital conversion in your source. Correct at the source.

Symptom

f Image appears “squeezed” or vertically stretched into center of screen

CAUSE / REMEDY:

1.

Check your Resizing selection.

 

Symptom

f The display is jittery or unstable…

 

CAUSE / REMEDY:

1. If the display is jittery or blinking erratically, ensure that the source is properly

 

 

connected and of adequate quality for detection. With a poor quality or

 

 

improperly connected source, the projector will repeatedly attempt to display an

 

 

image, however briefly.

 

 

2.

The horizontal or vertical scan frequency of the input signal may be out of range

 

 

for the projector. Refer to Section 6, Specifications for scan frequency ranges.

 

3.

The sync signal may be inadequate. Correct the source problem.

013-100149-02 Rev. 1 (01/07)

Christie DS+60/Dw3K/Marix 3000 User’s Manual 5-1

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Texas Instruments MATRIX 3000, DW30 Troubleshooting, Displays, Symptom f The projector is on but there’s no display