Electronic Home Alarm system issue


Old 08-27-14, 11:33 AM
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Post Electronic Home Alarm system issue

We bought a house with a DSC Power632 /PC1555 alarm system.
It's was not connected to a central (local use only).
We did not use it and did not armed it ...
A few months ago it's was showing 'trouble' AND we did not do anything ...
Now, it's dead (no light on the keypad).

So, I have replace the battery with a new one (PK12V7.2 12 V 7.2Ah) AND replace the AC adapter with a new one.

Nothing is happenning (still dead) ANY IDEA ??

Thanks in advance

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Old 08-27-14, 03:01 PM
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First, verify that you are actually getting 16VAC from the transformer to the first two terminals on the motherboard. If so, and the system still doesn't start there remains 3 possibilities:

You could have a wire crushed, somewhere that's shorting out the DC power.

You could have a motion detector, glass break, or other power using device that's failed in a short.

Or the motherboard has fully failed.

To check the first two. Disconnect everything from Aux power other than the keypads.

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