its the d.c. filter capacitor in the power supply,when they get old and dry out internally they let the d.c. ripple current they are suppose to filter past and this is your hum noise,replace the capacitor(s) in this circuit
it sounds as if the rubber belt is to slack however also worth checking ithe attachment to the spindle itself is not loose 2make sure the belt is the correct type
You need to increase the weight on the end of the arm to apply more pressure to the stylus. It will either be a screw or you just turn it. If there are numbers on it try it around 2.
Uh, I think you already have a solution but the following may help someone else.
Ensure that the device is powered on.
Press the "Function" button (28/58) to set the unit to CD mode.
Press the "Open/Close" button (19/48) to open the CD drawer.
Insert a CD into the tray with the label side facing up.
Press the "Open/Close" button again to close the CD drawer.
If the above steps don't work, you can try the following:
Unplug the device from the power outlet.
Wait for a few minutes.
Plug the device back in.
Press the "Open/Close" button to see if the CD drawer opens.
If the drawer still doesn't open, there might be a mechanical issue with the device. Look for the Fixya advise referred to above. If if that doesn't work, in that case, it's best to contact Crosley's customer support for further assistance.
Turn the arm that holds the element and needle careful to the far right and the turntable will spin. This is a safety feature for protecting the needle.
This is an internal circuit switching failure that requires a Crosley servicer to repair. You may have difficulty finding one because Crosley is just a brand name attached to equipment manufactured offshore.