A501/ boot problems

[rkauer]

 Why bother?

 Look at this page and you could have a never end supply of Amiga's PSUs!

Amiga Power Supply

 If you buy/steal/rent/grab a mini AT/ATX peecee unit, you could put it inside the original PSU case! Like I did to one of my Amigas.

[rkauer]

Ohforf wrote:
No, its a Hardware Problem. When you start the A500, a self-test Program(in Kickstart ROM) runs.
If something goes wrong, the Power LED blinks and the Screen shows a Color which gives a Clue about the Problem.

green screen = no chipmem found (or chipmem is damaged)
red screen = bad kickstart-rom
yellow screen = mostly a bad cpu or a bad expansion-card

 So, in order to fix the problem:

 1- Open the Amiga case (maybe you'll need a torx screwdriver)

 2- If the color of the error screen is green, remove the A501 (that funny box accessible from the outside of the Amiga via the trapdoor);

 3- Red screen: remove carefully the ROM chip from its socket and put it back;

 4- Yellow: remove carefully the CPU chip and resseat it back;

 5- Do the same with all socketed chips in the main board, if none of the above works.

[rkauer]

 OMG! Did you buy your Miggy from Doom Master???

[rkauer]

 Looks much more like a problematic PSU to me.

 Open it and look for bulky or near dead capacitors.

[rkauer]

Nikolai wrote:
Well it's not only a green screen from the bad memory, but the disk drive isn't working properly as well. It will begin to load a disk but after several seconds of a black screen it will just shut off and go back to the Insert WB screen. Weird... :-?

 Again: that's a symptom from a bad PSU (with bad/near dead capacitors). When the Amiga loads more current from it, it drops the voltages to less than necessary to keep the Amiga running.