Ps2 PAL 3900X had disc read issue, now seems to be missing power?

Ps2 PAL 3900X had disc read issue, now seems to be missing power?
Hello, I have recently picked up the tools to do electronics repair and my friend gave me his old fat PS2 that stopped reading discs. It was ejecting and then the tray would go back automatically when he showed me, but when he showed me he also jammed the tray shut after turning the console off and when I tested it later, the tray doesn’t even move any more :(