52TV-13142TV-13142WTROUBLESHOOTING GUIDEPLAYBACK PICTURE JITTERSVERTICALLYYesDoes tracking noiseappear in the picture ?NoNoYesBy adjusting the manualtracking UP/DOWNbuttons, will the noisedisappear in the picture ?Check P/B ENVELOPE.NoYesAre GUIDE POSTSthe right height ?Adjust GUIDE POST height.YesNoIs PG SHIFTERAdjustment 6.5H ?Adjust PG SHIFTER.Check PB-Y circuit.