KPA500 display now blank? Help

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KPA500 display now blank? Help

Gene N4FZ
The display just went blank, after a previous power on a few days ago, that read DISPLAY FAULT or something close to that. It has been working fine until now, what could be causing this? I have the AUXBUS connected to the K3, and just re-downloaded the latest software for both the K3 and the KPA500. Seems to be switching bands ok, but..wow it just now started displaying again. What could be causing this?
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Re: KPA500 display now blank? Help

Geoffrey Downs-3
Perhaps it could be temperature. About a year ago, whilst experimenting in
connection with another problem, I found that if I cooled my KPA500 down to
13C (about 55F) by leaving it overnight in an unheated part of the house and
then re-installed it into the shack, at switch-on the display lit up blank,
no relays clicked when a band button was pressed and there was no output but
if I waited for 10 minutes or so until the amp temp rose to about 18C
everything worked normally again. However, I never had a DISPLAY FAULT
message.

73

Geoff
G3UCK

-----Original Message-----
From: Gene N4FZ
Sent: Wednesday, July 03, 2013 6:48 PM
The display just went blank, after a previous power on a few days ago, that
read DISPLAY FAULT or something close to that. It has been working fine
until now, what could be causing this? I have the AUXBUS connected to the
K3, and just re-downloaded the latest software for both the K3 and the
KPA500. Seems to be switching bands ok, but..wow it just now started
displaying again. What could be causing this?




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Re: KPA500 display now blank? Help

mcduffie
In reply to this post by Gene N4FZ
On Wed, 3 Jul 2013 10:48:46 -0700 (PDT), Gene N4FZ wrote:

> wow it just now started
> displaying again. What could be causing this?

What did the factory say?

Gary
--
http://ag0n.net
3055: http://ag0n.net/irlp/3055
NodeOp Help Page: http://ag0n.net/irlp
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