I've had it happen on P10 boards.

-----Original Message-----
From: Af [mailto:af-boun...@afmug.com] On Behalf Of George Skorup
Sent: Monday, September 26, 2016 1:32 PM
To: af@afmug.com
Subject: Re: [AFMUG] FSK AP thinks default plug is in

I had a 5700BH20 with over a year uptime. Same thing, power went out and it
was default plugged when it booted back up. Yeah, in that year it could've
been an ESD event that killed the diode or whatever it is that goes bad. We
had this happening enough that I asked Cambium to allow us to
override/ignore the default plug, but that never went anywhere. Kinda moot
now since 13.4.1 is the end of the yellow brick road.

The P8 and P9 boards had this happen frequently. P10 and P11's almost never.
FSK isn't even worth getting fixed anymore. Just buy some cheap used radios
for spares and send the bad ones to the round filing cabinet. That's what
we've been doing for two years now.

On 9/26/2016 11:54 AM, Chuck McCown wrote:
> I am guessing some kind of ESD protection component shorted (if you 
> are lucky).  Removing the part would fix the problem.  But if it is a 
> logic input fried, that chip will have to be replace.  Paul is your 
> guy for this kind of stuff.
>
> -----Original Message----- From: Ken Hohhof
> Sent: Monday, September 26, 2016 10:50 AM
> To: af@afmug.com
> Subject: Re: [AFMUG] FSK AP thinks default plug is in
>
> I haven't had that happen on an AP, but I've had it happen on SMs.  
> Probably
> the problem occurred awhile ago and only got revealed when the AP 
> rebooted.
> I opened one of the SMs up thinking there was crud across the pins on 
> the jack, but no, and no amount of cleaning with alcohol would fix it.  
> I also seem to remember Paul from PDMNet confirming it's not as simple 
> as something shorting the pins on the jack.  So it's repairable, but 
> probably some component needs to be replaced.
>
>
> -----Original Message-----
> From: Af [mailto:af-boun...@afmug.com] On Behalf Of Craig Baird
> Sent: Monday, September 26, 2016 11:31 AM
> To: af@afmug.com
> Subject: [AFMUG] FSK AP thinks default plug is in
>
> I'm pretty sure I've seen this question posted before, but I don't recall
> the verdict.  We had a power outage last night that outlasted the 
> batteries
> at a tower.  When the power finally came back on, one AP didn't come 
> back.
> Further investigation revealed that it seems to think there is a default
> plug in it, but there isn't.  I've checked the default plug jack and 
> there
> is nothing foreign in it, and the pins all appear normal.  I've tried
> booting it with an actual default plug in it, and then rebooting with it
> out, thinking that perhaps that would reset something, but no dice.  Is
> there some way to recover the radio when this happens?
>
> Craig
>
>
>
>



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