Ricoh LU6000, Field Service Manual

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5. Troubleshooting
Troubleshooting
First, check the items below.
• Make sure you have connected the projector properly to the peripheral equipment.
• Make sure all equipment is connected to an AC outlet and the power is turned on.
• If the projector does not project an image while being operated with a computer, restart the
computer.
Problem Solutions
No power
• Plug the power cord of the projector into the AC outlet.
• See if the POWER indicator lights red.
• Wait 10~20 seconds after the projector is turned off when turning
the projector back on. The projector can be turned on after the
POWER indicator turns red.
Image is out of focus.
• Adjust the focus of the projector.
• Provide the proper distance between the projector and the projection
screen.
• Check the projection lens to see if it needs cleaning.
• Moving the projector from a cool to a warm place may result in
condensation on the projection lens. In this case, leave the projector
off and wait until the condensation evaporates.
No image
• Check the connection between your computer or video equipment
and the projector.
• See if the input signal is correctly output from your computer. Some
laptop computers may need to change the setting for monitor output
when connecting to a projector. See your computer’s instruction
manual for the setting.
• It takes about 20 seconds to display an image after turning on the
projector.
• See if the selected system is compatible with your computer or video
equipment.
• Select the correct input source once again through menu operation.
• Make sure the temperature is not out of the specified Operating
Temperature range of 41 °F to 104 °F (5 °C to 40°C).
105