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Maintenance and Troubleshooting
74 Runco LS-HB/LS-HB Ultra Installation/Operation Manual
PRE
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5.2
Troubleshooting Tips
Table 5-1 provides some general guidelines for troubleshooting problems you may
encounter with the LS-HB. If the suggested solutions fail to resolve the problem or if you
encounter an issue not described here, please contact Runco Technical Support.
Table 5-1. Troubleshooting Chart
Symptom Possible Cause(s) Solution
The projector does not turn
on.
• The LS-HB is not plugged
in or the AC outlet is not
active.
• Lamp cover is not securely
attached.
• Ensure that the LS-HB is
plugged in and that the AC
outlet is active.
• Securely attach the lamp
cover.
The projector does not turn
back on after it was powered
off.
• The projector will not turn
on for two minutes after
power-off, to protect the
lamp.
• Wait until the LS-HB
completes its cool-down
(POWER LED lights solid
green).
The remote control does not
work correctly.
• The batteries have run out.
• IR code set mismatch
between remote control
unit and projector.
• Replace the batteries.
• Press and hold the LIGHT
and ENTER remote
control buttons
simultaneously until the
remote control
back-lighting “blinks”
(approximately five
seconds). Then, try again.
The projector is on and OSD
menus appear, but there is no
video image on-screen.
• Incorrect source selection.
• Source component is not
turned on.
• Source component is
connected incorrectly or
not at all.
• Select the correct source.
• Turn on the source.
• Check cable connection
from source component to
projector.
A projected image from a
DVD is split or otherwise
scrambled.
• DVD player is connected
to the Component input
and set to progressive
scan mode.
• Turn off progressive scan
on the DVD player.
Image is blurred. • The lens is not correctly
focused.
• Adjust the focus.
Image is too bright and/or
lacks definition in the bright
areas of the image.
• Contrast is set too high. • Lower the contrast setting.
Image appears “washed out”
and/or dark areas appear too
bright.
• Brightness is set too high. • Lower the brightness
setting.
Note: You can obtain more detailed information about the cause of the error condition using
RS-232 commands. Refer to RS-232 Error Codes on page 87 for more information.