Broken Sanyo PLC 9000NA

We show films on environment and wildlife to villages and schools in Tanzania as a non profit organisation and now our second hand projector is broken. It starts up and then shuts down. We have been told that it might be due to the fact that we didn't reset it when we changed the bulb, but now cannot start it up in order to reset it!
It will cost us a fortune to send overseas, any suggestions?