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
