KPA500 #431 & no fan running

[Oliver Dröse]

Hi guys,

just to report that I finished building my KPA500 this afternoon. Everything
seems to be well except that the fan is not working, neither in NOR menu
setting nor if I set the speed manually to any value between 1 and 6.

Anyone any idea on that? Double-checked all the cabling again, all ribbon
cables are tight and correctly mounted (checked that first as I remembered
someboy with the same problem and that being the cause).

Thanks in advance! Vy 73, Olli - DH8BQA


______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Oliver Dröse]

Thanks Bob!

The LM 317 is okay, it's putting out 53,2 V and the insulation is intact.
Any other idea?

Thanks, Olli - DH8BQA




----- Original Message -----
From: "Bob Wolbert, K6XX" <[hidden email]>
To: "'Oliver Dröse'" <[hidden email]>
Sent: Monday, October 03, 2011 10:19 PM
Subject: RE: [Elecraft] KPA500 #431 & no fan running


Oliver,

Check the voltage on the LM317 voltage regulator's tab. If you forgot the
insulators it will be 0 Volts. And it will be very hot! It should be >50V.

73 de Bob, K6XX

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Oliver Dröse
> Sent: Monday, October 03, 2011 1:13 PM
> To: [hidden email]
> Subject: [Elecraft] KPA500 #431 & no fan running
>
> Hi guys,
>
> just to report that I finished building my KPA500 this
> afternoon. Everything
> seems to be well except that the fan is not working, neither
> in NOR menu
> setting nor if I set the speed manually to any value between 1 and 6.
>
> Anyone any idea on that? Double-checked all the cabling
> again, all ribbon
> cables are tight and correctly mounted (checked that first as
> I remembered
> someboy with the same problem and that being the cause).
>
> Thanks in advance! Vy 73, Olli - DH8BQA
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

-----
eMail ist virenfrei.
Von AVG überprüft - www.avg.de
Version: 10.0.1410 / Virendatenbank: 1520/3935 - Ausgabedatum: 03.10.2011


______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Oliver Dröse]

Hi guys,

just for the records: Problem solved. Two issues: The fan connector was
faulty (bad crimp connection) and besides this the 2 fan control wires were
reversed during production. If you run into that problem make sure the black
wire is in the middle of the connector, not the red one (that one must go
either left or right). Obviosuly some minor production problem (another
customer ran into the same trouble, too).

So thanks to the really excellent Elecraft support (Bob and Dale in this
case) KPA500 #431 is now completely operational and I am just another happy
customer again. Now eagerly waiting for the KX3 ... ;-))

Vy 73, Olli - DH8BQA
K3 #4546, KPA500 #431



----- Original Message -----
From: "Oliver Dröse" <[hidden email]>
To: <[hidden email]>
Sent: Monday, October 03, 2011 10:13 PM
Subject: KPA500 #431 & no fan running

> Hi guys,
>
> just to report that I finished building my KPA500 this afternoon.
> Everything seems to be well except that the fan is not working, neither in
> NOR menu setting nor if I set the speed manually to any value between 1
> and 6.
>
> Anyone any idea on that? Double-checked all the cabling again, all ribbon
> cables are tight and correctly mounted (checked that first as I remembered
> someboy with the same problem and that being the cause).
>
> Thanks in advance! Vy 73, Olli - DH8BQA
>
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html