Rowe AMI Jan 1100 Record Player Assembly

Greetings,

I need some guidance on this Juke Box. I have owned it since 1990 and it survived moves from Utah to Albuquerque and on to Myrtle Beach. All was well until a friend of mine asked to borrow the 1100 to compare to his. I received it back a month later and found that the location letters were off by one (B instead of C for example) which was no big deal. The unit played well for several days. Then I noticed that records started to skip towards the end of record play. Now the tone arm no longer lands on the record. It looks as if the tone arm cam is out of adjustment. Experience in this area would be greatly appreciated. Paul