A3000T woes

[nine3o]

Do you want just the case with no mobo?  Do you want the keyboard and 3 button pregnant mouse?

It all depends on what you want, everything or just specific pieces.

JCL here says if all your custom chips are OK then most likely one of the small green fuses (that are supposed to look like resistors) might have fried.

It is also possible one of the internal traces has fried.

In any of these two cases, it should be easy to repair the system.

You should check the voltages that comes out of the Zorro III slots. If one of them is dead, it might just be a question of adding a bypass wire.

[nine3o]

I did check all the traces and I did check the voltages coming out of the zorro slots, and they are all fine, as for the resitor packs, I did not check those.

[rkauer]

 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.

[Zac67]

Picofuses are usually green with little or no markings, some are greyish brown with a bit of rubber tube around them.
I've got no A3000T service manual, but on a 3kD there are 5 fuses. (Blew three of them on one occasion...  :roll:)