Ricoh PJ KU600, Field Service Manual

Page: 65 / 110

No. Symptom Procedure
3 No light on
• Ensure all connectors are connected securely and correctly,
and aren’t broken
• Check Lamp cover, Interlock switch
• Check Lamp module
• Check LVPS
• Check PSU
• Check Main board
• Check Color wheel
• Check Photo sensor board
4 No image
• Ensure the signal cables and source work (If you connect
multiple sources at the same time, use the "Source" button
switch)
• Ensure all connectors are connected securely and correctly,
and aren’t broken
• Check Main board
• Check Optical system unit
• Check Color wheel
5 Mechanical noise
• Check Color wheel
• Check System fan and Blower fan
6 Line bar/Line defect • Check Main board
7 Image flicker
• Do "Reset" of the OSD menu (page 84 "OSD Reset")
• Ensure that the signal cables and source work as well
• Check Lamp module
• Check Color wheel
• Check Photo sensor and clean Photo sensor
• Check Main board
8 Color abnormal
• Do "Reset" of the OSD menu (page 84 "OSD Reset")
• Adjust “Color Wheel Index” (page 81 "Color Wheel Index")
• Check Main board
• Check Color wheel
Main Procedures
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