Apple PowerBook M5409 Laptop Vintage Computer For Parts or repair

Description

Apple PowerBook M5409 Laptop Vintage  Mac Computer For Parts or repair. I cannot get it to power on. It looks to be in good condition, no cracks and the hinges, latch are good. Screws from the main body of this laptop have been removed, I did not do it so I have no idea why this was done. It doesn't power on, it could be the power supply, or it could be the computer. I know very little about Apple computers.
This item could use a cleaning. I do not clean these auctions for fear of damage or discoloring. Please read the description carefully and ask questions if unsure about anything. I will try and answer your questions, but some of these are a mystery to me. Please research anything that you are unsure about.