Pioneer Cassette Deck Repair

SOURCE: Left Deck Door Stuck Shut on Cassette Deck

The cassette mechanism has a large gear that rotates to different positions for the different modes. On time around is a play - stop cycle. It is stuck in one position and won't come around to the stop spot. Need to take the cover off and help it to turn to get the cassette out. Then figure out if something is wrong preventing it from turning or if the wheel driving it is the problem. They are all a little different so this is where your mechanical apptitude comes in.
By the way, you'll figure out right away they don't intend these things to be fixed.
Hope Ya Fix It.

SOURCE: Cassette door won't open

IF it is a deck with " soft touch " controls, that is, you arent using the old press hard down " piano key" style, but NOT a pure touch switch activation, then chances are either the drive belt has slipped, the belt broke, or the motor died. If this is the case ( soft touch = yes ), then unplug the unit, pop the cover off. You should be able to see the mechanism. When you view the mechanism from the front ( the side you normally see when using the deck ), the shiny little silver post that pulls the tape through during normal play will turn counter colckwise ( the shiny post runs against a rubber wheel ( the pinch roller )). What you should try is , with the unit unplugged and the cover off, if you can get your fingers to the deck in question, find the flywheel, should be a larger disk with a belt around it. Carefully spin the flywheel with your finger so that it turns counter clockwise, if you were looking from the front of the unit. This should cycle the deck through its cycle until you hear a click. Try to open the door. If the door doesnt open, press the stop button WHILE turning the flywheel again. This should drop the head assy and disengage the door lock mechanism. Remember, make sure the deck is unplugged, and BE GENTLE. you may feel a little resistance as you turn the flywheel. A little is OK, just be careful. If the flywheel comes to a hard stop when you are turning it, then something is jammed and you need to take it to a repair shop. Good luck...Rob. In the future, please specify a make and model so we can better help you . Thanks !!!

SOURCE: Repair of Sansui cassette deck D-1000W and Compu Receiver Z-5000X in India.

i have the same deck with same problem..so this is the typical problem for this deck...got it from thrift shop..it was in perfect condition, working excellent but after few days of enjoying it, all of a sudden the same problem arises.... and the motor is abnormally hot..it is way too fast.
when i switch on the power the middle motor will automatically turn on at very high speed...i play around anything i can do hoping something is just stuck up but to no avail..