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Operator’s Guide
3M
™
Super Close Projection System SCP725
© 3M 2011. All Rights Reserved.
ENGLISH
Troubleshooting
Identifying an Expired Lamp Module
Lamp Module Parts
1
2
3
3
1
2
3
4
5
1. Top of Lamp Module
2. Lamp Connector
3. Air Vents
4. Lamp Wires
5. Bulb Envelope - This is the shape of the bulb inside the lamp module.
Visible Indications of an Expired Lamp
The following five visible indicators help you recognize an expired lamp.
1. Cloudy Bulb – A cloudy bulb may reduce the image brightness. The lamp will appear to have white or black
deposits on the inside of the bulb. These deposits are a sign of normal wear and tear. Replace the lamp if the
brightness is inadequate.
2. Disconnected or broken wires – If the lamp wires are broken, the lamp will not ignite. Replace the lamp if the
lamp wires are broken
3. Deformed Bulb – A deformed bulb will reduce the image brightness. A bulb is deformed when the bulb
envelope expands into an irregular, round shape. Replace the bulb if it becomes deformed.
4. Debris on Bulb End – If the lamp will not ignite, the bulb seal may have broken. When bulb seal is broken,
debris from the bulb will form at the break. Most of the times, this is at the bulb tip.
5. Broken Bulb – The lamp will not ignite if it is broken. Sometimes you will hear an abnormal sound when
you try to start the projector. Please refer to the Safety Instructions for more information about handling
broken bulbs.