Please help. A few years ago I put my Akai AP-L45 linear tracking turntable in storage. After a year or so I hooked it back into my system and it wouldn’t work. Took it to the only(!) repair shop in Reno, NV and the guy replaced the power unit? Anyway, I hooked it up and it skips. Never did in over 30 years and now it does. Bought several brand new records (high quality) and tried them and they skip. I adjusted the arm weight and the stylus height and depth. It is a very good Grado stylus that cost me $200 in 1983. No matter how much weight I put on it or how many times I clean the record, it skips. I have adjusted everything I can without using an oscilloscope per the service manual I found online. Any ideas? Any suggestions for a reputable repair shop? Thank you in advance for any help or ideas.