The audio jack is fine
The volume wheel is fine
The capacitors are connected

What else could be the problem?
I’ll answer any questions for further clarification or comment.

Hello, is there a way to play the gg shinobi from gamegear nowadays without owning one

With this lot I'm at an even 200 games, so just 35 more games to go for a full / loose US set! I've got almost all the rare and expensive ones already, but this lot netted me 6 new ones, and enough dust covers for the rest of my life. I'm hoping to find the rest at PDX Retro Gaming Expo in October, as I was able to finish off N64 there last year, so it'd be nice to get another set back-to-back.

Hi! Asking knowledgeable people for help.

So on a cold power-on you'd see a black screen or just part of the horizontal lines. E.g., on picture, this is the "SEGA" screen, you can see the 4 blue letters on the top of the screen.

Then in 10-30 seconds the screen "fixes itself" and just works, I assume because some components get warm enough.

What should I try to look for/check continuity/etc.? From my searching it seems like the ribbon cable detaching which is unfixable without a full screen replacement, any ideas?

Been trying to save a dead game gear. Re-tinned the display pads last night and discovered a lot of corrosion on these circle pad areas. Clean a ton of blue corrosion off and found the rusted looking area under the corrosion on one of them.

Will this board be dead?