Yamaha psr-293 keys and buttons not working
I have a PSR-293 (old) that I turned on for the first time today. I have no knowledge of keyboards and have no idea what could be wrong. I put all the batteries in (completely new and placed in correct direction) turned it on and it was fine but then the keys stopped working out of nowhere. I turned it off and back on and they immediately started working again and the same thing happened. It's after like 1 minute or less that it just stops working and doesn't work again until the next time I turn it on. It was like that until it just stopped working all together, the keys work randomly only after being turned off and on, not everytime it's turned on. The buttons don't work at all no matter what I press, and the screen doesn't say anything, just has the keyboard layout and no words or numbers or anything. The SONG, ESA, STYLE, and VOICE keys light up randomly and the keys only work when SONG and VOICE are both on. I think it's the keyboard itself as the first time I tried turning it on with a cord it didn't do anything AT ALL but if there's a a fix lmk. Idk what to do, please elp.
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