cartridge eject, stock Delco changer
When you eject, the mechanism retracts the trays first and then ejects the cartridge, so I'd assume there must use a solid state controller coupled with a door sensor/switch to perform the ejection.
When you open the door, you should be able to hear the mechanism shuffle and retract the trays. If you don't hear the noise, the switch on the door is probably bad and isn't triggering the unit to retract and eject.
If you do hear the tray shuffling noise, you may have a problem with the solenoid that ejects the cassette - in which case a pull strap may work.



