I am having a right mare trying to find out what is wrong with an A1200 I have acquired. Its a 2B mobo, and when power is applied from a good working PSU, I am only getting a black screen , led remains dull.
Power seems to be reaching every where, +12,-12 and +5 is ok.
My oscilloscope is showing that all the address lines show no activity, so its as if it isn't starting at all.
None of the chips get hot, alice gets a little warm.
Any way and suggestions would be really useful. I have checked some of the traces from the Odd CIA . but I am a bit of a noob (although I have built a A500++ and a floppie A2000) so if any of you have some ideas please let me know!
Thanks in advance!