Oscilloscope HP Agilent 54600A 100 MHz (1991) trigger issue FIXED

[Spectrum]

I have this scope, it seems work well, all funtions ok, but the trigger DIDN'T work in any source or coupling.

I replaced U9 (AD9300KP a 20 pin PLCC), placed on the mother board behind the inputs, after verifying that it was powered. Now the tool works fine.
The IC was bought from China and was a stock fund (1997).

I do not know if it is the correct way to post a fixed issue, if is not excuse me and tell me how.
 

[shakalnokturn]

Not sure there is a specific way to post fixed issues but it's good that you did it any how.

There are so many members cluttering-up with badly formulated questions, useless multiple subjects on the exact same repair and those that get advice and may (or not) succeed thanks to it but never even bother to come back and write a conclusion...

[Spectrum]

I hope this post results in a search (here or Google) and be useful to someone. 

What you write is unfortunately common to all forums