Flickering jumping Horizontally after awhile also bootup colour issue

hi Recently my g5 20'' 22 Model A1076

has developed a flickering over the whole screen area and jumps, i noticed few months ago that the 3rd of the screen from the top had a noticeable lower luminosity/brightness [like milky greenish]

Q. Re these related or am i looking at a combination of issues,

I have using you tube information inspected the main boards psu logic and cables but couldn't see anything obvious. However i had to clean the fans from clogging fluff and dirt, there seem to be some improvement with the flickering but now its back again, the start-up colors are also naff as it is pink then gradually improves to white.

I have also reseated connectors as a backup.

does anyone have any ideas on this?

ta! chris

Answered! View the answer I have this problem too

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Check the 24 cans (capacitors) on the logic board for swelling and/or corrosion. Also hook it up to an external monitor to help isolate the problem and let us know your results.

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thanks Mayer will check that, however since my question the screen has now gone black, But i do notice that at boot up the usual white screen is displayed first for a sec or 2. I have also inserted the OS and find that the system is actually UP but no display[the dvd is loading and wherring?

any further ideas could it still be the fault you mentioned?

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absolutely. check those capacitors

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thanks again Mayer, will investigate again and report for others to see

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christopher will be eternally grateful.
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