Section 3: Troubleshooting
Entero RPMSP/RPMWU/RPMHD-LED01 Service Manual
3-7
020-100368-05 Rev. 1 (06-2012)
3.7.8 Display Quality Appears to Drift from Good to Bad, Bad to Good
• The source input signal may be of low quality.
• The horizontal or the vertical frequency of the input may have changed at the source end.
3.7.9 Display Suddenly Freezes
If the screen blacks out inexplicably, it is possible that excessive voltage noise on the AC or ground input has
interrupted the ability to lock on to a signal. Power the projector OFF and ON again.
3.7.10 Colors in the Display are Inaccurate
The color, tint, color space and/or color temperature settings may require adjustment at your input source, or
on the web user interface
Channel > Page2
. Make sure the correct PCF, TCGD and/or Color Space file for the
source is used.
3.7.11 Display is not Rectangular
• Check leveling of the projector. Make sure the lens surface and screen are parallel to one another.
• Make any necessary adjustments to the vertical offset on the lens mount.
• Check geometry corrections settings, for example keystone adjustment.
3.7.12 Display is Noisy
• Display adjustment at the input source may be required. Adjust pixel tracking, phase and filter. Noise is very
common on YPbPr signals from a DVD player.
• Make sure the video input is terminated
(75 ohms).
If it is the last connection in a loop-through chain, the
video input must be terminated at the last source input only.
• The input signal or signal cables carrying the input signal may be of poor quality.
• If the distance between the input source device and the projector is greater than 25 feet, signal
amplification/conditioning may be required.
• If the source is a VCR or off-air broadcast, detail may be set too high.
Summary of Contents for Entero RPMHD-LED01
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