Hello Chaps,
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.
There is now CCK4 signal to the crystal so i am thinking budgie may be nackered?
Your suggestions would be really useful. I am a mid level noob (although I have built a A500++ and a floppie A2000), good at sticking stuff on a motherboard but find it hard to know where to start with actually diagnosing issues.. so if any of you have some ideas where I can make a start please let me know?
Cheers
Nad
Thanks in advance!