MY DENON UD-M50 HAS GONE INTO PROTECT MODE AFTER A SPEAKER WIRE BECAME DETACHED WHILST PLAYING! HOW DO I GET IT BACK TO PLAY MODE??? THANKS DENE

https://www.manualslib.com/manual/435735/Denon-D-M50s-D-M50-Micro-System.html?page=21#manual

https://www.justanswer.com/electronics/231vq-denon-ud-m50-says-protect-when-switch-on-possible.html

The original remote is the Denon RC-877, https://www.manualslib.com/manual/435735/Denon-D-M50s-D-M50-Micro-System.html?page=9#manual . Here's are two in stock third-party exact replacements for the remote: https://remotes-world.com/products/denon-hifi-ud-m50 and https://www.remote-control-world.eu/rc-for-audio-hifi-denon-c-12_351/denon-rc-877-replacement-remote-control-p-5644 . Ebay and other sites also have listing for the remote.

I hope this helps.

Cindy Wells

This link should get you to a page where you can view/download the manual for this unit. Good Luck!

HI:
Usually when a receiver goes into protect mode, there are several reasons, One is there is a bad speaker connected to the unit, this will cause the unit to to into protect mode, try disconnecting all speaker from the unit and turning it on if it does not go into protect then one of the speakers are bad. Another reason is the power output Amplifier IC is shorted inside the unit. Another reasons could be that speaker wires are touching each other and causing a short. Disconnect all unit connecting to the unit and try turning on, if it stays on and no protect then connect them including the speakers one at time until you determine which is causing the error. If it goes into protect with nothing but the unit on then the Output IC is bad and the unit needs servicing.

http://www.diystash.com/downloads/service-manuals-schematics/audio-video/receivers/denon/denon-ud-m50-service-manual/start-download
Should work...

most of the receivers come with a cooling fan inside see if its working they usually work when you turn the volume up,, if its working that means you are playing it to loud if you lower the volume a little it will play just fine..( if the fan inside is not working thats the reason it goes into protect mode and it means you must have it repaired,, it goes into protect mode to prevent furter damage to the unit or the speakers,,

Hi Ernietex,

Dont blame your wife.

Your receiver is basically going into protect mode.

The Denon AVRs contains a microcomputer for signal processing and control functions. In an unlikely event, it may cause it to lock up. Unplug the power cord from the wall outlet, wait for 10 to15 seconds and then plug it back again.

But, before you do than, please also check your speaker cabling again. Make sure that all of them are seated properly, none is touching each other or the body of receiver. Take out all the wire and put them back again if necessary..
Some times even a little tiny frayed wire touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough and it could blown a few trasistors in the power circuit.
Just check your speaker as well....whether they play all right thru another receiver or amplifier. its posiible they might be shorting inside. A little frayed wire could also trigger the protect circuit in your receiver.
I hope this should solve your problem.

If you still can’t resolve the issue yourself, try resetting the AV receiver/AV amplifier before going on to opening the Receiver.

Hope you can sort out your problem with the above trouble shooting. Let me know if I can guide you further.
Best of luck. Thanks for using FixYa!

Hi,

Have you unplugged it from wall since ?
and, do you know if maybe the speakers are blown?
Bad speakers will make it stay in "protect"
Try other speakers after the unplug-plug back in routine.
Try the Denon website for a manual

Check the wire at the back of the FM Ant. If possible replaced it or relocate the FM wire.

Good luck

Maybe you accidentally break some contact(s), on display or somewhere else. If that is the problem, soldering iron should solve that. Look for any loosen wires or detached contacts.