My jvc stereo system mx-dk3 displays disc upgrade with no button working

SOURCE: JVC STEREO DISPLAYS UPGRADE DISC

HOW CAN I GET JVC STEREO DISPLAYS UPGRADE DISC. PLS. HELP ME TO SLOVE MY JVC MX-DK3 PROBLEM
My email : [email protected] THANK YOU

SOURCE: how to unlock protected mode on a jvc 5 disc cd changer?

cheack the speaker wireing.if thats not the pro i sugg the repair shop your unit could have over heated.

SOURCE: jvc model mx-c33 home stereo

I moved it to the garage, placed it on top of refrigerator, reset time, stations. I didnt play a cd right away. When I did, one played fine and that was it. No is wasent dropped, but I wonder if putting on the metal refrigerator somehow misaligned the laser to read cd's. thanks for your interest, Rick
[I must add though, when I brought it back into the house, it picked up and played a cd. I then went to play one of the other 5 discs and the same problem occured.

SOURCE: JVC Stereo won't open cd tray

take off the cover and get whatevers jamming it out mine did the same thing

SOURCE: My JVC mx-gc5 stereo says protect and then shuts off

If protect is coming up on the display, it means the system is detecting a short somewhere on one of the speakers and so is turning the amp off to avoid damage.
Check all the connections at the back of the amp to ensure they are not shorting, and at the back of each speaker, if nothing is found there, check each wire for damage (like squashed or rodent damage).