re how to get rid of flyback whine in article apr princeton edu jsm shade princeton edu john scott mccauley jr writes i recently took apart my color sony tv to clean the volume pushbuttons and when i put the beast back together the flyback whine got much louder is this easy to fix which part is resonating i have heard rumors of a spray that will fix the noise is this a simple thing for a tv repairman to fix thanks scott ah ha i m not alone at last which sony do you have i have a sxr pre xbr series circa that damn thing used to make noise like a mad man i had have separate problems one being the flyback the other was the assembly where the windings of the yoke came together first i found by poking around the windings on that assembly the thing would make noise i guess that there was enough of a potential in that assembly to leak so i sprayed it with a dielectric insulation spray i think it was urethane or acyrilic that fixed it second flyback for the life of me i can t isolate this one if i leave the cover off the tv will be quiet if i put the cover back on and let it heat up it ll start to whine kinda hard to solve with the cover on a friend of mine who used to fix tv s says there might be a pin hole leak somewhere on the flyback usually it s surrounded by a bunch of black dust dirt i hope this is a start if you find something out let me know aaron
