Digital Monitoring Products, Inc. | Troubleshooting Guide 1
INTRODUCTION
ABOUT THIS GUIDE
This guide was created to assist DMP Technical Support Technicians in helping DMP dealers troubleshoot and fixing any
problems they may have with DMP equipment� We now oer this guide to DMP dealers and technicians� Any text in this
guide within a paragraph or step that is CAPITALIZED indicates keypad display text�
Example: ENTER CODE:-
THE ART OF TROUBLESHOOTING
It is easy to overlook something simple when troubleshooting a system� Whatever your problem is, the cause is usually
something simple, so don’t skip the basics�
Perhaps something was overlooked in programming, or maybe something is physically incorrect, such as an incorrectly
placed panel-jumper, an unplugged transformer, or a harness on the wrong header�
When you’re troubleshooting at an installation site or on a service-call, your job is to get the equipment working as
quickly as possible�
When working with any manufacturer’s equipment, the key to troubleshooting is to know what questions to ask first�
For example, let’s say you have a ‘dead’ keypad� It has no display and does not respond when keys are pressed�
WHAT’S THE FIRST THING TO CHECK?
1
DC voltage at the keypad harness: Is the keypad getting power?
2
DC output on panel terminals 7 & 10: Is the panel supplying power?
3
Wire connections at panel terminals 7 & 10: Is the keypad connected to the panel correctly?
4
AC input on panel terminals 1 & 2: Is the panel getting AC power?
These are all correct troubleshooting steps for a ‘dead’ keypad� But the order in which these steps are taken can change
depending on the layout of your system�
If the keypad is in the same room as the panel, it may be easier to check terminals 7 & 10 for DC output first� If the
keypad is 1000 ft away, you may save yourself a trip back to the panel by checking the keypad’s wire harness for proper
DC voltage� It just depends�
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