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Old 01-15-12, 11:22 AM
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please

I have a vista-10SE control alarm system and the keypad M6673 show me OC , I DONT know what happen but my alarm not work and keypad too
 
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Old 01-15-12, 04:14 PM
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theThe part number you cite for the keypad, is for the plastic shell. Most likely you have a 6128 keypad.

That said:

OC means that the data communication between the keypad and the alarm control board has failed. Most often, this is because the cable between the two has somehow been damaged (squirrels in the attic, etc).

Simple test: Power the system down and temporarily connect the keypad directly to the motherboard with a short length of known good 4 conductor.

Power back up. If the keypad functions normally, then you need to pull new wire to your keypad location. If not, then either the keypad or the motherboard has failed.

Here, a installer manual will help: Vista 10se installer manual - Google Search
 
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