Ricoh PJ KU600, Field Service Manual

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Main Procedures
No. Symptom Procedure
1 No power
• Ensure the power cord and AC power outlet are securely
connected
• Ensure all connectors are connected securely and correctly,
and aren’t broken
• Check LVPS
• Check PSU
• Check Main board
2 Auto shutdown
• Ensure the projector is not put on a soft pad and the air vent is
not blocked
a. Lamp failed: Power LED (flashes red), Lamp LED (lights red)
• Check Lamp
• Check LVPS
• Check Main board
b. Fan failed: Power LED (flashes red), Temp LED (lights in red)
• Check whether have execute “Fan Calibration” (page 74
"Waveform Download and Fan Calibration")
• Check System fan and Blower fan
• Check Main board
• Check Color wheel module
• Check Photo sensor board
c. Over Temp: Power LED (flashes red), Temp LED (lights in red)
• Check System fan and Blower fan
• Check Main board
3. Troubleshooting
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