k1 - no signals - made progress - need help..

[sergio t. ruiz]

thanks no N0SS, i have finally narrowed down where my problems on my k1
are..

in signal tracing, i actually heard TONS of signals through my radio.. i
have a feeling that it has been broken since day 1... i can't WAIT to
get this fixed and on the air.. i have never heard so many signals on my
radio.. WOW!

anyway..

here's where i am now..

test point 1 - T1.. CHECK!

test point 2 - D5... CHECK!

test point 3 - J2-1 ... P2-1 BAD BAD BAD!!

okay...

so i found that on the front side of D5, i got a signal.. on the back
site.. BOOOO!!! no signal..

the first thing i did was replace D5 and D14.. of course, i should have
read N0SS's full document first.. but .. well, you know..

so i replaced the diodes, and got the same results..

so then, i checked to see if there was 6V on the anode of D5.. NO DEAL..

out of curiosity, i checked D14, too.. and there was nowhere near 6V
here, either..

then, i did all the voltage checks at the test points on the manual, and
everything was good..

i then checked the 8V and 6V voltage regulators according to the
manual.. and they checked out fine..

does anyone have any hints?

i have a feeling this is gonna be like a new radio!

thanks!



72 de kb8qpt


--
___
peace,
sergio
photographer, journalist, visionary
www.village-buzz.com
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[sergio t. ruiz]

> In RX mode, you should (I believe) have something less than 6VDC... it
> starts out as 6VDC from 6R/AUX, but might be lower by the time it gets
> to the anode of  D5. HOW LOW was the voltage on the anode of D5 in RX mode?

hi, tom..

just checked the voltage..

on the anode side of D5, i am getting somewhere around -0.1v..

which is really weird to me..

on the cathode side, i get 0v...



--
___
peace,
sergio
photographer, journalist, visionary
www.village-buzz.com
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