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    Honeywell Ademco Vista 20P - reports trouble but no codes

    Welcome to the forum, Khays. My first thought was that if your monitoring center is receiving an undefined signal, the original installer(s) forgot something in the original paperwork. The monitoring center can only ID a signal by what the installer tells them it is at the time of installation...
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    Time to troubleshoot FBII XL2T

    First of all, kudos for keeping your systems going for the last 30-or-so (?) years . I apologize for my delay in responding: I haven't worked on one of these for almost that long--they were good panels--and I needed to look over the Installer's Manual to re-familiarize myself. The symptoms you...
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    Old AT&T security system. #2

    Oops, just realized too late to edit that I didn't put in a link to the DIY Alarm site. https://www.doityourself.com/forum/electronic-home-security-systems-alarms-devices-87/
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    Old AT&T security system. #2

    I apologize for taking so long to respond, Kingludd. I've searched through my alarm literature and I don't seem to have a hardcopy of the AT&T Installation manual. I was hoping going through it might jog my memory. I found one online and looked it over, but it didn't help jog loose any memory...
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    Problem with DSC 832 system

    Welcome to the forum. First of all, thank you for being explicit, concise, and articulate about the symptoms and what you have done so far in your troubleshooting: It makes it a lot easier to troubleshoot when I know what's happening. My first guess is that at some point your landline has been...
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    DSC MAXSYS ALARM PROBLEM ARM CALL FOR SERVICE

    By "activate" and "deactivate", I'm guessing you mean Arm and Disarm. Your phrasing makes it sound like this has happened more than once, but if that's true, then you must have been able to Arm it more than once, so are you able to Arm it after waiting awhile? Or did I just not understand you...
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    Interlogix NX8v2 Control Panel - Fire Zone Alarming Nonstop After Factory Reset

    Brian, my apologies for taking so long to respond. It's been a busy day. I'm a retired alarm tech with over 40 years experience in the Washington DC area, but by some quirk of fate, I never worked with any of the Interlogix Panels. I always assumed that they just didn't sell a lot in this area...
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    Ultrak MA850

    Oops! Sorry, adolfo2, I wasn't paying attention and responded as if you were the original OP. Hopefully s/he'll respond eventually. For what it's worth, you might be better off replacing your vibration sensor & analysis devices with acoustic glassbreak sensors. The alarm industry in the 80's...
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    Ultrak MA850

    IIRC, the Installation Manual for those modules was only a couple of pages; so, yes, if you want to post it, I'll try to walk you through its settings. Those settings are designed to ignore background environmental vibes while reacting to vibes caused by glass being broken or a wall being...
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    Vista 20p keypad doesn’t respond

    I don't remember exactly when the Vista-20P came out, but I'm pretty sure it was sometime in the mid- 2000s. It sounds like you have an earlier Vista-20 or Vista-20SE, and your KP's address of 31 is correct. I'm afraid I misspoke before: Unless you have two partitions in your system, then...
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    Vista 20p keypad doesn’t respond

    If your KP's address is 31, AND if you really have a Vista-20P INSTEAD OF an older Vista-20SE or earlier, then that is your problem.: Address 31 on a Keypad makes it "non-addressable", a feature of earlier Panels before the Vista-20P. So assuming you have a V-20P with a KP that worked for...
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    Vista 20p keypad doesn’t respond

    I worked with a lot of Vista-20P systems over the years, but I've never seen programming a new fob affect the Keypad operation. My best GUESS is that while you were in programming, you may have inadvertently changed something in another field than you needed for the fob. Back to basics, check...
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    Aritech CS-250 alarm

    "After being on battery all night..." If your system lost AC Power for an entire night, and IF you tried to use it as soon as AC Power was restored, then the results are unpredictable. Your battery was probably very weak in the morning, and was drawing heavily on the Panel's (The CS-270's)...
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    433 MHz Help

    It really, REALLY helps us to help you if you would name (make and model #) the equipment you're asking about. I don't know what you're working with when you say "I want to add a 433 MHz signal from a small motion alarm to signal my GSM alarm system." If this is an existing motion sensor (e.g...
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    Simple Hall sensor alarm circuit?

    You seem to want something to sound when a door is open, and keep sounding until the door is closed, any time, day or night. In the Alarm Industry, we don't call that an "alarm", we call it "annunciation." I would say we call it "chime" except that the chime feature in all alarm panels gives...
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    Ultrak MA850

    OK, I don't think I ever worked with that particular model, but I worked with 4-zone analyzers that most likely were adjusted the same way. I do remember it had 3 settings that had to be set, for what is simplistically called "sensitivity". I'll see what I can find. No promises, it's been a...
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    Ultrak MA850

    Peter, I don't have a better answer than the one I gave you almost 5 years ago: That Ultrak module was being used in the late 80's (IINM) and I don't know if the manual for it was even put on the internet, which came in common use years later. However... Today I noticed something that I missed...
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    Napco MA1008e Ver 2 - Battery Over current protection

    I worked with that generation of Napco panels back in the day when it was the state of the art in alarm panels. The MA1008 was a good panel. Unfortunately, alarm panel manufactures, all brands, don't share schematics or give tech support for repairing panels, and it just wasn't/isn't practical...
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    Paradox MG5050 - Open Zones

    *SIGH*!! This is the first time I recall seeing this thread. Don't know how I missed it when Leon first posted it in 2018. I'd love it if Leon came back on, because what s/he describes puzzles me. For one thing, Leon mentions "changing all the batteries", but doesn't say what batteries s/he...
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    restoring old garage door opener-receiver/transmitter

    I suspect the "quiet click" you're hearing is the relay in your receiver---the thing that your remotes transmit to. If that's so, then the remotes & receiver are probably working. If you're going to ask us to help troubleshoot, provide us with more info. Does the opener work with the hardwired...
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