I have a makeshift power connector that has worked for a long time, I ended up plugging it in backwards and turned it on for about 2 seconds. When I corrected it and turned it back on, C72 smoked.
I have replaced the cap but now get no boot.
What I know
All voltages are there
power LED comes on
Video signal but nothing displayed at all.
no beep
Tested a few locations on the board and there seems to be a clock signal
80 column board got quite hot, removed it. but didn't help
no other chips get hotter than they should.
Any ideas on where to start?
Thanks in advance
I have replaced the cap but now get no boot.
What I know
All voltages are there
power LED comes on
Video signal but nothing displayed at all.
no beep
Tested a few locations on the board and there seems to be a clock signal
80 column board got quite hot, removed it. but didn't help
no other chips get hotter than they should.
Any ideas on where to start?
Thanks in advance