Hardware Repairs / 2013-03-27 03:03:51

Most Amiga hardware has now more than 20 years... so, yes, it is getting wiser but also needs some repairs. Here are some repairs and tips.

PS. Follow these tips at your own risks! I cannot (and won't) be responsible for any damage that you may cause!

Changing the Amiga PSU for a modern, standard ATX PSU

There are now lots of ATX PSU for sale for cheap in second-hand stores, which are in perfect conditions. They can be bought for less than $CA10 and used to effectively replace the old Amiga PSU with more power (watts) to support more extensions. There are a few steps to follow to use a ATX PSU:

1. Find a ATX PSU in good condition;
2. Use the paper-clip trick to get it to switch on:
   
   1. In the 20-pin block going out from the ATX PSU, find the green wire (there's only one);
   2. There are two black ground cables beside it, find one of them (no matter which one);
   3. Connect the green and black wires using a paper-clip, then isolate it using electric tape;
   4. Plug and switch on the ATX PSU (when on, its fan should turn, even if briefly);
3. Open the Amiga PSU and unsolder from the PSU the cable connecting to the Amiga;
4. Connect the unsoldered end of the Amiga cable to the 20-pin block from the ATX PSU as follows:

5. Check carefully—twice!—the voltages between each pin of the Amiga connector, using a voltmeter. BEWARE of shortcuts!
6. Voilà ! You can now use your Amiga with a modern, standard—powerful!—ATX PSU