Re: K2 Won't power on

Posted by Don Wilhelm-4 on Feb 13, 2014; 2:51am
URL: http://elecraft.85.s1.nabble.com/K2-Won-t-power-on-tp7584083p7584158.html

Jeremy,

Yes, you should be doing the resistance checks with no power applied.
Inexpensive ohmmeter?  Well, if it is a digital multimeter in resistance
mode, you should be OK, but i it is an analog VOM or VTVM, it may not be
showing you the real picture because the voltage may be sufficient to
turn on semiconductor junctions.

73,
Don W3FPR

On 2/12/2014 9:15 PM, JeremyJones wrote:

> I have lifted R45, RFC4, R74, R82 and R97, with only a slight increase from
> 70 ohms to 87 ohms after lifting RFC4.  I'll continue troubleshooting
> tomorrow by removing any capacitors connected to 12V.
>
> I also want to confirm that I should be doing these resistance checks with
> no power applied.
> Also, I am using an inexpensive ohm meter.  Will that have enough power to
> charge the capacitors up enough to show the expected resistance?
>
> Thanks,
> Jeremy
> VA3ZTF
>
>
>
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