K3 Board Re-seating Guidelines

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

K3 Board Re-seating Guidelines

John K3TN
I'm having a couple of interrmittent K3 problems, both of which have lead to suggestions of reseating the boards. The oldest problem is the VFO A lockup that an early warranty trip back to Elecraft came back with "problem not found," probably cured by FedEx jostling on the way. That has occasionally re-appeared, but a new problem (intermittent hum related to mic/headphone connection to MK2R+ interface) has started up.

Is there a document or any instructions on disassembly/board reseating? I didn't build the K3, I've Googled and search Elecraft.com. The K3 Assembly Manual doesn't seem to cover it, I've found guides for installing the DSP board and some AF stage upgrade guides that have disassembly instructions for those particular actions but wondering if there is a "reseating guide" floating around out there somewhere.

Thanks, John K3TN
Reply | Threaded
Open this post in threaded view
|

Re: K3 Board Re-seating Guidelines

Don Wilhelm-4
  John,

There is nothing specific to "re-seating".
If you use the existing board assembly steps in reverse, then put it
back together again, you will have accomplished the "re-seating".

Normally, you do not have to re-seat all the connectors - just the ones
involved in the problem, and it normally involves the DSP and Front
Panel boards.  The replacement steps for the upgraded DSP board should
have all the information needed to do that task.

73,
Don W3FPR

On 6/6/2011 6:46 AM, John K3TN wrote:

> I'm having a couple of interrmittent K3 problems, both of which have lead to
> suggestions of reseating the boards. The oldest problem is the VFO A lockup
> that an early warranty trip back to Elecraft came back with "problem not
> found," probably cured by FedEx jostling on the way. That has occasionally
> re-appeared, but a new problem (intermittent hum related to mic/headphone
> connection to MK2R+ interface) has started up.
>
> Is there a document or any instructions on disassembly/board reseating? I
> didn't build the K3, I've Googled and search Elecraft.com. The K3 Assembly
> Manual doesn't seem to cover it, I've found guides for installing the DSP
> board and some AF stage upgrade guides that have disassembly instructions
> for those particular actions but wondering if there is a "reseating guide"
> floating around out there somewhere.
>
>
______________________________________________________________
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