[TenTec] omni d display problem

[Mike Bryce]

boys and girls..

i have received a omni D that was overvoltaged.(sp)

I have the receiver working, the transmitter working and have made on 
the air contacts..

only problem is I have no idea where I am at.

the display was blank.

Several of the segment drivers were toast. the time base oscillator IC 
was toast.
Now I have display, but it won't count correctly.
here's what I have
the preset is there, 1.000 for 160-40 meter
91.000 for 10 mhz
09.000 for 14 mhz and up
the correct timing pulse are there

I have the correct input frequency from the vfo amplifier, there's 
plenty of RF from the vfo amp, about.5 v

now, the trouble is the display won't count correctly!
on 40 meters, I see 1.234 mhz, when in fact the vfo is running at 7.102
yes, the segments are working, they're not being turned on.

and now the strange part.
if I turn the vfo down to 7.000, the display will show 1.000. as I go 
up in frequency, the display becomes off, say at 7.100 on the vfo, the 
display will show 1.212. Higher up, the more error ( besides the 
problem with the leading (missing ) "7"

I've talked with ten tec, they've been really helpful with ideas, but 
nothing has worked so far.

ah... the main counter IC? Swapped out one from a century 21 and still 
have the same problem. the one out of the omni works in the C21, too.

Help!!!


Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop

http://www.seslogic.com
http://www.theheathkitshop.com/