sony mini cd power protect

[wollie]

I have one of these, The speaker wires to one side was never correct and in the past when i put volume too high it stops and "power protect" comes on.
All i ever need do was turn off lower volume and all ok.
I disconnected all the cables, left it off over night, i also pressed enter/stop/standby all at once which brings up cold reset but changes nothing.
When now off it will be in "sony demo" mode, when i turn on it will be normal for about 3 secs and can be switched from cd/radio/volume etc.
After the 3 secs it will flash between protect and push power.

I would welcome any ideas.
Many thanks

[Enrique]

H wollie,
You might get some ideas if you Google the model number.........Example

https://forums.anandtech.com/threads/so ... e.2067491/

or

e.g...........

sony mini cd player After the 3 secs it will flash between protected and push power