Ricoh Polaris-PJ1, 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 securely connected and aren’t
broken
• Check LVPS
• 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 (flashes red)
• Check whether have execute “Fan Calibration” (page 59
"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 (light on red)
• Check System fan and Blower fan
• Check Main board
3 No light on
• Ensure all connectors are securely connected and aren’t
broken
• Check Lamp cover, Interlock switch
• Check Lamp module
• Check LVPS
• Check Main board
• Check Color wheel
• Check Photo sensor board
Main Procedures
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