|The way to repair anything is to first understand how it works and then, with the right tools, determine what isn't working and diagnose the fault. What I believe you are doing is called "poke and hope". Don't get me wrong, I have used the same approach when faced with electronic kit which I don't properly understand. On the odd occasion I have been lucky but mostly not.|
With electronics we are well into the throw away society which is why you would be hard pressed to find anyone who repairs monitors and the like. Even if you find the culprit it could turn out to be a specialised component which you would be hard pressed to find anywhere on the internet.
All I can add is to look out for anything showing overheating or burn marks and check printed board soldering. Often the largest soldered joints give trouble first, sometimes seen by gently moving the component then watching the soldered joint below it to see if its centre is moving on it's own (detached from the surrounding solder).
Not a lot more I can add.
Always pop back and let us know the outcome - thanks
message edited by Derek