al-yeti Posted May 2, 2016 Share Posted May 2, 2016 Plenty g2 floating about with faults , even brand new , poor manufacturing in recent times I would say How far is cable from keypad to panel , if cable is hidden try and fly wire from panel to keypad just to rule that out if you get me Quote Link to comment Share on other sites More sharing options...
Andromeda Posted May 2, 2016 Share Posted May 2, 2016 1 hour ago, al-yeti said: Plenty g2 floating about with faults , even brand new , poor manufacturing in recent times I would say How far is cable from keypad to panel , if cable is hidden try and fly wire from panel to keypad just to rule that out if you get me Board is doing this without any load only ac power on and no battery connected, I am measuring 6v dc from aux o/p's. Have a g2-44 and two g2-20's all with the same symptoms, I blew the aux fuse on 2 of these boards prior to this happening - this of course maybe related to my problem, old age and forgetting to power down unit prior to pulling a cable causing +ve and -ve to short out. But one of the boards came from eBay which measuried this way before any load put on it. This isn't just happening to me I guess?! Quote Link to comment Share on other sites More sharing options...
al-yeti Posted May 2, 2016 Share Posted May 2, 2016 Picture of where your taking measurements, as your saying three boards all with same problem Quote Link to comment Share on other sites More sharing options...
al-yeti Posted May 2, 2016 Share Posted May 2, 2016 Also what did you do to blow the fuse Quote Link to comment Share on other sites More sharing options...
Andromeda Posted May 2, 2016 Share Posted May 2, 2016 43 minutes ago, al-yeti said: Also what did you do to blow the fuse Just above the RS485 terminals there are 4 +/- aux outputs (these have red and black wires in the picture), the fuse blew in effect by shorting these terminals (touching red and black wires at a PIR). Quote Link to comment Share on other sites More sharing options...
Nova-Security Posted May 2, 2016 Share Posted May 2, 2016 remove the speaker wires and check again Quote www.nova-security.co.uk www.nsiapproved.co.uk No PMs please unless i know you or you are using this board with your proper name. Link to comment Share on other sites More sharing options...
al-yeti Posted May 2, 2016 Share Posted May 2, 2016 This Novaman is fast! Quote Link to comment Share on other sites More sharing options...
Andromeda Posted May 2, 2016 Share Posted May 2, 2016 1 hour ago, al-yeti said: Novaman, all wires have been disconnected and only ac power connected and I measure 6v dc at aux +/-. Why do you suspect the speaker wire(s)? I did at one point but only because I pulled them by mistake quite hard from the my loft. I haven't checked them for short between or to ground as yet but as I say all wires have been disconnected other than ac supply and tamper although this is not to say this was the root of my problem to begin with; that is if you know something that I do not....? Thanks for all your help, it's much appreciated. Just to clarify the picture is from a few days ago, I no longer have it all wired up. Quote Link to comment Share on other sites More sharing options...
Andromeda Posted May 2, 2016 Share Posted May 2, 2016 One more thing, excuse my ignorance, but I assume you mean the internal speaker wire not the Bell box (SAB) wiring, right? This is brown in the photograph and also a positive component which is connected to one of the +ve aux terminals which is an orange wire in my case, but I don't think you can see that from the picture. Quote Link to comment Share on other sites More sharing options...
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