Hi I got my hands on a second hand nes clone "family video game" and there was no included power adapter. I've tried one of them multi adapters and tried a Sega master system adapter but I'm not sure if it's powering on. There's no lights on the system and it only has rf output so I can't tell whether it's just not powering on or if something is wrong with the rf output. I have a multimeter just don't know where to start has anyone got any ideas what could be wrong? Also I've tried letting the tv autotune and it doesn't pick up anything I expected it to be on Ch36.