RCA Victor Solid State radio

[timl15]

I’ve had this RCA Victor radio (model RJC47W, serial # 74161348) for a couple of years now, play it every day, sounds fantastic, replaced a more modern radio that I had in the kitchen. Lately it’s developed a sound issue, when listening to the radio (AM or FM doesn’t matter, can go days with no sound issues, but other times starts having issues within minutes), it will start to create a brrrrrrrrrrrrrr sound or bzzzzzzzzzzz sound, the radio station volume stays the same during these instances. I thought it would be an old paper capacitor that has gone bad, but when I opened it up, found out it was built with all the newer caps, so now I’m not sure this is my problem.

I have very limited knowledge on electronic repair but am trying to learn. I do not have a Z Meter to test the capacitors, does anyone know what could possibly be the issue, and if so, could someone tell me what could be wrong with this radio by looking at the attached pictures and pointing me in the right direction.

I also looked online for a schematic for it but was unsuccessful.

Tim