I've been thinking about OVP. Basicaly my thouhts started with using voltage difference between say +5 V and +12 V and what happenes if the appliance goes short. Than the high voltage (+12 V) appears on the low (+5 V), triggering OVP, right?
Now say I will remove this short and change it for linear regulator to control the voltage. I have some small output, say 1 A on each rail so PSU feedback works. Some of the power will probably be eaten from the higher-voltage rail first but sooner rather than later, if the linear regulator can handle the load ofc, higher voltage will appear on the lower rail, right? With the regulator I can control voltage present on lower rail and in theory, measure when exactly the OVP reacts. Will it work or am I out of the line here?
Now if that above works, say I have second, +24 V PSU. I connect both grounds so it works OK with correct reference and let the +24 V flow to +12 V. Than I can measure OVP for +12 V as well, right?
Now say I will remove this short and change it for linear regulator to control the voltage. I have some small output, say 1 A on each rail so PSU feedback works. Some of the power will probably be eaten from the higher-voltage rail first but sooner rather than later, if the linear regulator can handle the load ofc, higher voltage will appear on the lower rail, right? With the regulator I can control voltage present on lower rail and in theory, measure when exactly the OVP reacts. Will it work or am I out of the line here?
Now if that above works, say I have second, +24 V PSU. I connect both grounds so it works OK with correct reference and let the +24 V flow to +12 V. Than I can measure OVP for +12 V as well, right?
Half of the computer problems is caused by bad contacts 
But today, I’m making an exception here. Why? No idea. Perhaps only because the repair details are still “fresh” in my head… which is ironic, given this is a 16 year old monitor that hardly anyone will care about today. It is new to me, though. 
I picked it up last November from someone on my local Craigslist. It wasn’t very close to where I live, but was close to a family friend that I had to go visit anyways. So after watching the posting on Craigslist for a few weeks and seeing it getting...