3M
™
Multimedia Projector MP7770
Machine Overview
2002, 3M IPC.
1-2
1-4. Safety
Read and understand all safety procedures before making any repairs to the MP7770 Multimedia Projector.
Note
When any work is being carried out on the device, the mains cable must be disconnected from the mains supply.
Only service personnel may carry out service work. For any repair regional and corresponding national regulations
are to be followed.
Up to 30.000 V may be incurred when the lamp is ignited; lethal hazard!
An isolation transformer has to be used during any service to avoid possible shock hazard, because of not
protected live parts on opened device
Eye damage may result from directly viewing into the lamp
The lamp is very high temperature and high pressure during operation. Cool down, before opening lamp cover and
handling. Wear special protective glasses. Never switch “ON“ without the lamp (high voltage an lamp wiring, 25-35
kV).
1
1. Service and repairs may only be carried
out by well-trained personnel. Regional
and national regulations concerning the
execution of repairs have to be observed.
2. Operate the unit with mounted protection
plate only (item 1) for protection against
possible lamp explosion.
3. Put the unit on an antistatic and hard-to-
inflame support only.
4. Cables around power supply and lamp
are under high tension.
5. Take care not to touch the lamp base
when replacing the lamp. It is extremely
hot and may cause burns to the skin.
Allow the unit at least 5 minutes to cool
down.