1040 STe 33 Bombs

[clifhanger]

Hi All,

 

I have an 1040STe that is displaying 33 bombs.

 

long story is I had it sitting unused for years and known to be working. However, powered it up the other day and the PSU burnt out in front of me. I replaced the PSU with a new one. It now powers up but displayes 33 bombs and power cycles every 5 seconds or so.

 

I have looked at all the other components and nothing else seemed damaged or charred. I have also swapped the memory with known good sticks.

 

Can anyone suggest what might be going on and where to start looking for issues?

Edited June 21, 2020 by clifhanger

[ParanoidLittleMan]

When PSU burns like that, usually there is overvoltage, so some chips are damaged/broken too, most likely.