AVOCOR VTF-6500, Руководство по установке и эксплуатации

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5. Maintenance and Troubleshooting
Maintenance
The Avocor Series LED Displays does not require any routine maintenance other than occasional cleaning with a non-
abrasive cloth. There are no user-serviceable or replaceable parts. Unless you are a qualified, factory-trained
technician, do not attempt to repair or replace any system component yourself. You will void the product warranty if
you do so.
Troubleshooting
Table 5-1 provides some general guidelines for troubleshooting problems you may encounter with the Avocor Series
LED Display. If the suggested solutions fail to resolve the problem or if you encounter an issue not described here,
please contact your dealer.
Table 5-1. Troubleshooting Chart
Symptom Possible Cause(s) Solution
The display does not turn on.
• The display is not plugged in or
the AC outlet is not active.
• The main power switch is off.
• The remote control batteries
have run out.
• Ensure that the display is
plugged in and that the AC
outlet is active.
• Set the main power switch
(see Figure 2-1) to the on
position.
• Replace the batteries.
The display is on and menus
appear, but there is no picture.
• 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 component.
• Check connections from
the source component to
the display.
The remote control does not work.
• The remote control batteries
have run out.
• The buttons are locked.
• Replace the batteries.
• Unlock the buttons by pressing
ENTER, ENTER, EXIT, EXIT,
ENTER and EXIT, in sequence.
Image geometry is incorrect.
• Incorrect aspect ratio selection. • Select a different aspect ratio.
The display is jittery or unstable.
• Poor-quality or improperly
connected source.
• The horizontal or vertical scan
frequency of the input signal
may be out of range for the
display.
• Ensure that the source is
properly connected and of
adequate quality for
detection.
• Correct at the source.
Image is too bright and / or lacks
definition in the bright areas of the
image.
• Contrast is set too high. • Decrease the contrast setting.