How do I open a cassette door that is stuck?

If the cassette door/slider on your Sony CMT-HPX9 stereo system will not open, it could be caused by a few different issues. Here are a few things you can check:

1. Check the release button: Make sure that the release button is being pressed properly and that it is not jammed or stuck. If the release button is not functioning properly, the door will not open.
2. Check the door lock: Make sure that the door lock is not engaged. Some models have a door lock switch that can prevent the door from opening.
3. Check the tape inside: Make sure that the cassette inside the deck is not jammed or stuck. This can prevent the door from opening.
4. Check the mechanism: Make sure that the mechanism that opens the door is not damaged or jammed. If the mechanism is damaged, the door will not open.
5. Check for debris or dust: Make sure that the cassette deck is clean and free of debris or dust, as this can cause the cassette to get stuck and the door not to open.

If none of these steps resolve the issue, I would recommend contacting a professional technician or Sony's customer support for further assistance.

Hi what has happened is when you pressed play the tape head that reads the tape has come up as normal this locks the door as you cant open it when its playing but instead of the tape head releasing and going back down into start possition it has become jammed in the tape itself.
You have two options turn off at mains and give it a gentle bang a couple of times this might free the tape and let the head go back to start possition its upto you how hard you tap it but doing this usually works and will allow you to get the tape out failing this then its going to be a case of stripping it down till you can get access to the tape head and be able to free it from the tape allowing door to open let me know how you get on ok and if you need further assistance

If you know how to do this open the latch on the cassette when it stops and look to see if something got spilled into or on the tape itself.

If the unit only shuts off with this tape the cassette is the issue.

If you open the door on the tape (little square button to release the door also look (happens if you use same tape a lot and fast scan with it) to see if the bottom edge of the tape has curved waves in it--should be perfectly flat with no ripples at bottom edge of the tape.

Is the tape wrapped around the capstan?

Please click HERE so that you will be directed to the site where you can troubleshoot the issue.

I hope that this will work for you.

Either the tape is jamed round sound head, or the door is stuck with somthing like a handle of the case on side of camera, but sounds like tape stuck, run film backward a little (not forward) as more tape will get stuck in forward motion.

the tape might have stuck inside.. you need to open it and remove it on your own.. if you think its risky go to any nearby shop of electronics.. they will do it for few bucks..

Just had this problem myself... called Sony. Here is what I did to fix this:

1. Turn off power
2. Open the LCD Display
3. Press "Reset" with paperclip/pen
4. Unplug ANY wires connected to the camcorder
5. Eject battery
6. Plug in DC charger
7. Power on
8. Attempt to eject tape
9. At this point, the metal tape holder comes out but refuses to open... slightly "close" the portion of the camcorder that has the button to eject the tape, and then open it fully again (you'll hear a click, this signals the device that the 'hatch' is open and to eject).
10. The metal door *should* pop out and allow you to withdraw the tape.

I've tried 4 different cassettes and about 2 seconds after hitting play, I get the error every time... my solution: Not going to try to play my tapes on the camcorder anymore... will find another player to play Hi8 MP cassettes. Unknown if able to record to tape as of yet.

Check out the drive that works the unloading and loading operation of your machine. Also check the switch that is activated by the presence of your cassette. If something is wrong with the latter, the tape will not load and unload properly. And under those circumstances your machine will not work.
Try Google search for your questions. You may get lucky and get the answers right there!

Firstly: do not think about forcing the cassette door! Look inside the unit. You need to hand rotate the capstan flywheel a bit,( a large-ish metal disc attached to the motor via a rubber drive belt.)That should release the powered deck mechanism and allow ejection. Then buy a new drive belt , so that problem does not recurr. Good Luck