A tip: SMD fuses looks a lot like an SMD resistor, but green.
Once a had a problem with my A600 (PAL) and an A520 (NTSC): I bumped the Miggy, and this cause a live disconection of the the parts. Guess the results? A fried A520 and a non- funccional RGB port.
What happened with the RGB? It busted a RESISTOR!
My advice: look carefully at all resistor packs in the mobo. Do it with a magnifier. Check them with a multimeter. Don't give up.
