Kenwood ts 930 repair.

[W5acc]

Hi all . I have a Kenwood ts 930 that needs some work.
The digital read out will go blank . when I turn the vfo it will come back on.
Sometimes I haft to turn off the power then turn it back on to get the frequency read out. It's getting worse. Who works on them ?
I was told that it needed the piexx bored. I don't see how that will fix the problem.. The best way to reach me is by my email.
Pfrench477@gmail.com. thanks and 73. W5acc .