Replace Amiga 3000 backup battery

[antoniosk]

Hi folks

Been working my way through the site.... have all the bits I need to replace the barrel battery in the amiga 3000, but I can't find any reference to the diode replacement.

For the Amiga 2000's the consensus is to replace R803 (that's a seperate project), but is there an equivalent on motherboard for Amiga 3000, and if so where?

Before I go to the effort of disassembling the fragile machinery, want to gather my facts (and piccies)

[antoniosk]

Thanks folks

I'm just wondering, the location of the batteries requires disassembly of the machine even to replace the coin.

Would it not be more prudent to remove the battery, solder a couple of wires to the battery solder points with a clip in the middle and attach them to a 3.6v NiMH telephone batteries and locate the battery elsewhere in the case. The amigas can then continue trickle charging (no messing with diodes) and it's easy enough to replace a phone battery if it ever fails (I've never seen one of these type of cells leak)