Cinego D1000 Projector Overheating?

I would think that bad joints, and bad electrolytic caps are the two prime suspects. You can check for bad joints visually (if it's older than say 5 years, it will almost certainly be constructed with leaded solder and bad joints will be easily spot-able) as well as by using an insulated tapping instrument such as a ball point pen, or the butt end of a screwdriver for more stubborn cases. A can of freezer, and a hair dryer can also be useful tools for locating this sort of problem. Look / test especially around devices that run at elevated temperatures such as power resistors, and any power semiconductors either free-mounted, or attached to heatsinks.

Bad electros may reveal themselves by having bulging tops, and / or shrunken or discoloured sleeves, and / or evidence of electrolyte leakage around their bottom edge. However, just as commonly, there can be no visible cues for a faulty one at all, in which case, the most useful diagnostic instrument is an ESR meter. If looking for bad caps, first suspect any that are located close to sources of heat, such as power resistors, or heatsinks.

Arfa

Check the power supply for degraded capacitors, and/or out of spec voltages.