I recently bought a new pin connector off ebay, but after I installed it, my game tray won't stay in the down position. When I push it down, it just clicks and then comes back up. Any ideas what might be the problem or what I did wrong?
If it was working fine before you took it out, it sounds like you may have installed the cartridge tray with its tab on top of the circuit board. This is a common problem because often times care isn't taken to remember to slide the little tab on the tray under the circuit board.
People just lay it on top of it and screw it down. That causes all kinds of problems from the tray not working correctly to the game not seating correctly and you still get a blinking or solid colored screen with no picture or sound.
I would suggest that you go back and take the tray off, look on the underside where you see this little part (shaped like a tab) that sticks out near the white plastic latch mechanism. That little tab piece must slide under
the circuitboard. It may take you a couple tries, but it must go under.