[Elecraft] K2 display

[wsm at amaonline.com]

Hi
While waiting for the replacement of inductor L5 on the RF board,
I decided to try the alignment and test part II up to where it would
be efected by the missing inductor.
When starting I found that the frequency counter had stopped working.
It was working fine up until that point. I took the front panel and
control board off to check for cold solder joints. I didn't find
any but re-soldered the connectors that join the two boards.
When re-assembling the K2 and powering, up the display started to
malfunction. All it will do when powered up is to display the number
8 in all digits with the annumciators underneath. The front panel
and control board had been working fine up until this point.
I checked for solder joints on the connectors that I re-soldered
and found none.
I don't see how trying to do the  part two alignment without the
inductor L5 installed would cause this, but I've been wrong before.
Has anyone ever had a problem like this before, and if so how did
you solve it?
Thanks for any information.
Scott N5SM