1 Publication 2711-UM014B-EN-P
Chapter
13
Troubleshooting and Maintenance
Chapter Objectives
This chapter tells how to isolate and correct common operating
problems and perform routine maintenance tasks.
• equipment required
• using troubleshooting chart
• LED indicators
• cleaning display window
• replacing clock module
• replacing backlight
Note: The PanelView 300 Micro has no internal components that are
user accessible. The rear cover is not removable, do not attempt to
remove the cover. The real-time clock battery and LCD display
backlight are not replaceable.
Equipment Required
Other than verifying that the correct power source is connected to the
terminal (use a voltmeter), no electronic diagnostic equipment is
required for troubleshooting.
Using the Troubleshooting
Chart
The following pages provide a troubleshooting chart for the terminal.
This chart lists the most common operating problems, causes, and
steps to correct them.
ATTENTION
!
The PanelView terminals contain hazardous voltages.
Do not insert objects or let objects fall into the
terminal through ventilation slots. Always disconnect
power when checking wiring connections. Failure to
take adequate precautions may result in electrical
shock.
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