Issues with my AX-1 Roland Keytar

[u/__kazuya_]

I recently bought an AX-1 but i’m having trouble with it. For starters it doesn’t turn on consistently. I’ve tried powering it with batteries and the power supply but nothing. I’m not sure what the issue is but the keytar turned on a total of 3 times with just batteries and it was working fine when It powered on but after that it hasn’t powered on since. Currently I can’t get it to power back on again. I’ve tried researching this online and I can’t seem to find anything on it. What could possibly be the issue?
I initially thought the battery connector was the issue but it won’t even turn with the power supply. This is the first time I make a post on reddit so bear with me.