ONKYO CR-315 cd player locked.

first of all, learn to use spellcheck.

Set your Player back to Factorysettings. Push "Skip forward" and "Repeat" at the same time. "Clear" appears on your display.......now you should be able to open your deck.

Unless the graphics of the display is known it is difficult to speculate. If there is no display or if in disarray then the display unit or the driver is faulty. It can also be a powerr supply fault or a linking cord connection.
Finally if there is no response of the processor or any action of the function then the processor section is a suspect.

Hello, I am sorry about you issue. It sounds like your player needs to be serviced. I have included a link to search for an authorized service center. Thank you, Onkyo USA
https://www.onkyousa.com/Support/servicecenterlocator.php

Hi
check the fuse box for fused fuse and replace them with the corresponding fuses.
Regards.

my sony mp5 player is locked. but i never locked it. it's locked just automatic. now how can i unlock it? plz help me.

Dirty lasers don't cause "protection" problems. Are you sure thay message is displayed on the CD player? That word is nowhere in its manual.

I have the same exact problem with my Onkyo C-707CHX and I found a solution that doesn't involve jamming any screws or other metal objects into your cd tray (which could most likely just cause more damage). This way seems a little safer: Power on your device and hit the open button. As soon as you hit the open button quickly push slightly with both hands on both sides of the cd tray that should be opening. You should hear the trays moving around in there and then you have to try to feel for a slight push from the tray. As soon as you feel that slight push, take your hands off of the tray and let it come out. This has been working for me for a while now (and hopefully will continue to work until I take it to get fixed somewhere). The only issue I have run into is that my "Disc 1" open button doesn't work with this method. So I just use this method with disc 2 or 3 and then once it's open I can hit the disc 1 button to get to that tray. So if it doesn't work with one tray, try the other two as well. Hope this helps.

I have the same exact problem with my Onkyo C-707CHX and I found a solution that doesn't involve jamming any screws or other metal objects into your cd tray (which could most likely just cause more damage). This way seems a little safer: Power on your device and hit the open button. As soon as you hit the open button quickly push slightly with both hands on both sides of the cd tray that should be opening. You should hear the trays moving around in there and then you have to try to feel for a slight push from the tray. As soon as you feel that slight push, take your hands off of the tray and let it come out. This has been working for me for a while now (and hopefully will continue to work until I take it to get fixed somewhere). The only issue I have run into is that my "Disc 1" open button doesn't work with this method. So I just use this method with disc 2 or 3 and then once it's open I can hit the disc 1 button to get to that tray. So if it doesn't work with one tray, try the other two as well. Hope this helps.