grd4aces

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Old 08-05-12, 08:24 AM
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grd4aces

Does anyone know if you can back door/master default Napco MA800 by grounding pin 5 of the main chip. If not how can you?
 

Last edited by grd4aces; 08-05-12 at 08:48 AM.
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Old 08-05-12, 08:32 AM
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RP1003u is the keypad model. What is the system model it's attached to?
 
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Old 08-05-12, 08:45 AM
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The control is a Napco MA800
 
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Old 08-05-12, 09:13 AM
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For a start, here's the installer manual: http://www.jessejoe.com/poweredprote...apco/MA800.pdf

Now the bad news: These used an external eeprom programmer. You had to physically remove the chip, put it in the programmer, change the programming, then reinstall the chip.

There's no keypad programming option for these puppies.

My advice is to budget in a new control and keypad(s).
 
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Old 08-05-12, 11:51 AM
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Thanks. I found out from the C/O I'm using, that they have the programmer & can program ID & ph. #
 
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Old 08-05-12, 02:25 PM
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Go for it! Just remember, that this is a 20-25 year old piece of hardware that might have issues...
 
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