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The bottom half of my screen is shaking like a "non" TV channel.... I restarted it, and turned it off and back on again and it continued. The shaking occurs every 2 seconds and is spreading higher now. It is shaking of the visual on the screen- not the actual machine.

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If you can.. Plug a Desktop Monitor into the Serial Port of the Laptop..You do This To See If It Shows Same Thing Onto A Different Screen.. If It Does, You Are Having Video Issues.. Which Were Most Likely Caused From Overheating Issues..
If It Shows Normal On The External Monitor, Yet Still Does Same THing On The Laptops Screen, Then You Have 1 of 2 Issues... Either You Need To Replace The Display Due To A Faulty Circuit Board On The Backside Of The Screen... Or Your Display Cable Is Loose And Needs To Be Fully Plugged Into It's Port, Or The Display Cable Is Failing..

Posted on Nov 15, 2009

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Posted on Jan 02, 2017

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Check the 9v regulator Ic2p01 on the signal board for correct regulation 8.9 to 9.1 volts. If voltage at the output is under 8.9v, replace the regulator Ic. Always replace C2p05 100 Ufd 16 V on this set and that should take care of the shakes but you may want the tech to go ahead and ESR some of the other troublesome caps throughout the Tv. He'll know what you mean. Many of the 100mf caps replace automatically. Several others will have a questionable ESR and should be replaced. Caps are inexpensive, but probing with an ESR meter is somewhat labor intensive so you miht discuss with the tech just how far you want him to go testing for bad caps.
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