Quantum Data 801GX Manuel de service télécharger pdf (Page 38)

3M Multimedia Projector MP8620 Troubleshooting

3M 1999 3-9

3-4-8.

Humming Noise. Slowly Passing Horizontal Bars

Probable causes are:

Signal sources are connected to different power sources.

VCR connected to aerial system and to projector.

Bad signal.

Possible solutions are:

Locate the source of disturbance. Disconnect the sources one after another from the projector.

Connect all

sources to a common power source.

Remove antenna connection from VCR. If the disturbance disappears, use a bypass filter (isolating

transformer) to connect the antenna to the VCR.

Try different input source.

3-4-9.

No Power. Power Shuts Off During Presentation

Probable causes are:

Power switch OFF.

Projector overheated.

Possible solutions are:

Turn on Power switch to projector.

Remove any objects blocking ventilation and allow projector to cool down. Power will return and projector

will be in Standby mode.

MP8620 Message Table

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Quantum Data 801GX Manuel de service Page 38