Epson PowerLite 5000 Service Manual page 108

Others
Start
Is there a noise problem?
NO
Is there an overheating
problem?
NO
Is there an image display
problem?
NO
Is the problem not easily
identifiable or is
reproducibility low?
YES
Check the following for defects:
• Intake fan and exhaust fan on the power supply unit.
• Power supply unit (vibration noise from the pulse transformer)
Check the following for defects:
YES
• Thermistor (LV/PBS/Lamp)
• Exhaust fan, intake fan
• Air filter frame (dirt)
YES
Check the following for defects:
• Optical engine (May be caused by dirt on the light guide unit, projector
lens unit, and light valves on the optical head unit.)
YES
Check the following for defects:
• AC input (including power line transit or distortion)
• Power supply unit
• Main board
• Cable connection (failure to make connection)
• Operating environment (temperature, condensation)
The problem may be static electricity. Check that power cords to the PowerLite
5000 and input devices are grounded properly.
Figure 4-12
4-13
EPSON PowerLite 5000 Service Manual