[Elecraft] K2DSP troubleshooting advice

Fri Jul 18 00:22:00 2003

All,

Just to follow up, Lyle and I have exchanged a couple back channel
emails and is sounds like I may have a bum regulator.  I'll slide in a
replacement as soon I can get out to buy one.

Once again, this list shows itself to be a most amazing resource.

Dale N9XD

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Lyle Johnson
> Sent: Thursday, July 17, 2003 10:19 PM
> To: Dale Wiese; [email protected]
> Subject: RE: [Elecraft] K2DSP troubleshooting advice
> 
> 
> Hello Dale!
> 
> > Well, I got my K2DSP assembled, powered up the rig, no LED. 
>  ... What 
> > I am looking for is advice from the experts on where to go next.
> 
> 1) With power off, unplug the DSPx module.
> 
> 2) re-apply power and check the +5V.  If it is OK, the DSPx 
> may be at fault or it may not have been inserted correctly 
> (I've done the latter myself...)
> 
> 3) If the +5V is still bad, remove power and remove the MCU 
> from its socket.
> 
> 4) Re-apply power and check.  If the +5V is OK, the MCU was 
> probably backwards in its socket (I've done this, too).  
> Re-install it very carefully!
> 
> 5) If it is still bad, start looking for shorts across things 
> like the 10 uF electrolytics, or some of the TO-92 parts 
> being in the wrong locations.
> 
> -Lyle KK7P
> 
> 
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