I've been wanting to modify the original Nintendo Gameboy so I decided to restore and repair one and do the modifications while I'm at it.  The original Gameboy aka DMG-01 was released in North America 31th July 1989, few days shy of 31 years! HTe modification I will add to this console is a backlight and a bivert chip. Bivert chip inverts the colors. For some reason that gives better contrast for the screen, I'll also invert the colors again to get normal colors instead of inverted colors.

The Gameboy got power but there was no image or sound. This was not very promising. Usually no power is better because then the issue is most likely simple to solve beucause that is often caused by bad contact somewhere. This could mean the board or the screen is broken.

After disassembly the plastic parts were cleaned. And yellowed parts were de-yellowed in my solarium. Tutorial for the process can be found here: https://www.youtube.com/watch?v=jdWRsjnVD3s

I cleaned the board. I concentrated especially on the power switch…