2020B phono issue

[need2boat]

2020B phono issue

I was hoping to get some help diagnosing a problem when I use the phone selection. I've tried 2 different record players and I'm getting intermittent noise and slight pops of varying loudness.

What I've tried so far:
changed speakers
Cleaned all RCA plugs and connections.
Changed out record player.
Checked ground at both record player and 2220B

I only get this when I use phono, it happens often but not always. If i lift the needle when its happening I will still hear it.

I'm new to vintage electronics but fairy handy so if this is over my head I do have some local repair shops in the South NJ area.

thanks

Joe

 

[rBuckner]

Both channels? Although it sounds like a transistor quitting on you, I'd start with replacing all electrolytic caps on the board.

 

[need2boat]

Thank you for the help. I created this thread twice and I don't have the right to delete or edit them so this link will take you to the correct thread.

http://audiokarma.org/forums/index.php?threads/2220b-phono-issue.744500/