HI FRIENDS: I just finished installing a new belt on my AIWA CS-J1 ( IT'S A BIG JOB) and it plays a littel slow but I cant see a POT to adjust. can someone help with. thanks. COOPER.

There is a little PCB at the botom side. You can find the speed adjust on it. 

HI sonywmf5: I want to thank you from my heart for the quick response to my sad state of life over this little problem, it is now solved,I made it on the first adjustment. this is my second successful belt install on these cs-j1's plus (3) failures but I think I can now go back and fix one of them,the first one that I did was on a almost mint j1 and I was not sure how i did it so good and became too sure of my ability and the next 2 were failures but I realized what happened on them and I gained a lot of extra screws and parts. but yesterday after my successful belt install then it played too slow and I don't think I got over 4 hours sleep last night and had just finished looking at my post and was about to turn off my computer off but decided to check my email and your reply popped up and now my life will continue to go on thanks to you.BTW I have (6) more of these to install new belts on and they are all excellent j1's to give to my kids and gran kids. are you very familiar with these j1's. anyway thanks sonywmf5. COOPER.

HI AGAIN sonywmf5: I forgot to mention the pot was hidden behind the not so clear plastic shield that is sort of glued to protect the board from touching the back metal cover. thanks again.THIS HAS MADE MY DAY. COOPER.