For complex troubleshooting you need a logic analyzer.
What are some common things to look for when troubleshooting on a logic analyzer?
Mostly when I used at work a logic analyzer was to look for if all the logic signals were in sync starting at the same time, had the right time intervals apart from each other, pulse widths were correct, lead and falling edges looked sharp and not rounded or slanted.
Anything else u can ad please that you visual inspecting logic signals using a logic analyzer?
If the power supply has no current limiting. the bad device is going hot. So you can touch it.
When the power supply is current limiting the Buss voltage or VCC is go Higher or lower? or is it always lower?
When the power supply is current limiting, I disconnect each stage that is connected to the Buss rail or VCC one by one until i get the powers supply voltage back to normal, Is this what you do? when the power supply is current limiting?
the bad device is going hot. So you can touch it
My DVM meter has a Temperature setting using a temperature probe, I measure the temperature of a good working circuit and compare with a bad circuit
If the temperature is higher on the IC chip, it might be a short or its around that area
Is this what you do?
BTW:
Do you have any experience or knowledge about electronics and digital electronics?
Some, I'm not the best that's why I ask questions
Thanks for your help and info btw