[Elecraft] K1 problem

[Don Wilhelm]

Mike,

You probably shorted the diode in the RF Probe first, and that in turn 
grounded the collector of Q6, and that in turn would have placed a 
stress on the 12 volt input.

Did you have a fuse in your power cord?  That would be the first thing 
to check.  Do you have 12 volts or more from the power supply?  If so, 
is there voltage at the coaxial power plug? Then how about at the 
cathode of D16?

If you have voltage (12 to 14 volts) at the places above, turn on the 
power switch and check for 12 volts at both ends of  R5 (no need to have 
the band board installed for that check).  How about at the collector 
(tab) of Q6?

If you have 12 volts at all those places, check the output pin of U5 for 
the presence of 8 volts.  If so, check for 6 volts at the output pin of U6.

If all those are present, turn the K1 off, install the band board, turn 
it on and you should have a display of some sort.

Let us know what happens.

73,
Don W3FPR

Michael - VE3MKX wrote:
> Hi All..   Well....  Here is the K1 story....
>
> I was going threw the RF section taking  voltage measurements (page 5 of trouble shooting) trying to figure out why the rig was deaf.  While doing so, silly me, I would say other words but,,,,  I hit the nut/bolt assembly left of TR-3 on the bottom of the main board with the RF probe.  Then ZAP !! Now the rig is dead, it will not on.
>
> Not being a technician... Any thoughts on where to start tying to trouble shoot this new mess / problem that I just created? ;)
>
> Any help would be appreciated !
>
> 73 Mike
>   
>