Rather than easiest or hardest, how about luckiest?
I was given a 50" plasma tv once where the top half of the display was dead and the bottom half worked fine. Once I got inside I could see that the power supplies and all of the driver hardware came in duplicate. It was like there were 2 TVs inside. With no schematics but knowledge of how plasma and LCD TVs are designed, I was able to compare working and non-working components until I found a string of 4-5 diodes that were shorted. Though they were SMT, I kludged 1N914s in place and the set has been working ever since!
Kevin
Sent from kjo iPhone
