boreas
"If it sounds good, it IS good." E.K.E.
how do I go about working on this thing?
As Balifly suggested, the best place to start is with the owner's manual. That may or may not give you some insight into your problem since it isn't actually a repair manual. You might also try the service manual for the Model 6110. There may be enough similarities in the area you need to study.
Your problem is likely to be in the switch which is actuated when the tone arm is moved toward the record. It may be stuck in the closed position and may just need to be cleaned. Even without the manual you should be able to check this out by opening up the turntable and checking the mechanism.
Who has the 45 adapter, and why wouldnt any old round ring work?
The 45 adapter on the 6100 has index marks on it for aligning the cartridge. You don't strictly need it for alignment and any 45 adapter will work for playing 45s.
John
