Yeah, all I am really seeing is a lot of dirt/dust build. Some discoloration (yellowing) is normal over time. If dark brown or black, I might be concerned.
Shrek in right. Way WAY back in the early days, motherboard manufacturers made schematics and IPBs (illustrated parts breakdown) available to technicians. These pubs identified each circuit and component with test points and expected test point readings (voltages, resistance, capacitance and often waveforms too). They identified each component with their specs. So, if handy with a meter and/or scope, one could troubleshoot down to component level, and easily find a suitable replacement.
But that practice went away a long time ago. Not only are those publications expensive to produce and maintain, but companies would rather users either return the device to the maker for [expensive to us, profitable for them] repair. Or better yet, we buy new resulting in more profit for them.
Today, even qualified techs can't troubleshoot to component level because they don't have the references to see what is expected at any given test point. Yeah, we can do a visual inspection and look for burnt or broken components. But burnt components can be caused by other failed components in the circuit. And even if we could isolate the fault to a specific component, odds are it won't be labeled in a way we can determine its specs in order to get the proper replacement.
Way WAY back in the day when I was in school, we were taught extensive electronics theory and component level troubleshooting. These days, techs are taught to swap out black boxes (the major subassemblies) because the self-diagnostics feature said that box was bad. They have no clue what "
bad boys ravished our young girls but violet goes willingly" means (note that's the clean version).
"Twinkle twinkle, little star"
"E is equal to IR"
"Up above the world so high"
"P is equal to EI"
I can,t see any signs of burning on there ,that could be because i turned it off straight away .Can you see anything wrong with it.?
