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Section 5: Troubleshooting
5-4 RPMSP & CSP70-D100U User’s Manual
The display is “noisy”…
1. Display adjustment at your input source may be required. Adjust pixel tracking,
phase and filter. Noise is particularly common on YPbPr signals from a DVD
player. (If using a PC source, adjust using a high-frequency test pattern with one
pixel on/off throughout.)
2. The video input may not be terminated. Make sure the video input is terminated
(75Ω). If it is the last connection in a loop-through chain, the video input should
be terminated at the last source input only.
3. The input signal and/or signal cables carrying the input signal may be of poor
quality.
4. If the distance between the input source device and the projector is greater than 25
feet, signal amplification/conditioning may be required.
5. If the source is a VCR or off-air broadcast, detail may be set too high.
The display suddenly went dim…
1. Lamp operation mode switched from Dual Lamp to Single Lamp – check the
Lamp menu to confirm lamp status and operation mode. A lamp may require
replacement.
1. Make sure the Ethernet settings are valid for your site—all network devices
should have the same subnet mask and unique IP addresses.
2. Make sure to save any address change, and re-boot to implement.
If you still have trouble establishing communications with a projector added to an
existing Ethernet network, the projector’s IP address is likely in conflict with
another address already in use. Contact your network administrator.
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5.4 Ethernet