Troubleshooting Guide - Black Box AC400A Owner's Manual

16 lcd projection panel
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2. Gently remove the filter and
clean it by washing it in gentle
soap. Be sure to let the filter dry
completely before re-inserting it
in the Projection Panel.
The frequency with which you
will need to clean the filter
depends on how often you
use the Panel. Typically, you
will need to clean the filter
approximately once every
three to six months or when
the Projection Panel overheats
from a clogged filter.
CHAPTER 5: Maintenance and Troubleshooting
Filter
Fig. 5-1. The Projection Panel Filter.

5.3 Troubleshooting Guide

Before calling Technical Support
for assistance, attempt to solve the
problem by checking this
troubleshooting guide.
Problem: Nothing on screen.
Possible Causes and Solutions:
• You may not have any power
or you may be using the wrong
power supply. Check to see that
the proper Projection Panel
power supply is being used
with the Projection Panel.
29

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