TG16:General Troubleshooting

Capacitors
Almost all of the "Duo" consoles suffer from failing capacitors. It's strongly recommended that you do a full cap replacement on all Duo consoles, as even if it's still working, leaking caps could be slowly damaging your motherboard! Unless you've done something like this before, it's recommended having one of the above modding services do it for you, as it's easy to damage your console.

Jason from Game-Tech has a video that shows a cool trick to make the cap replacement easier:

http://youtu.be/xIIvEluVelU