Re: Focus the picture on a Model 27GT619 Television
The focus control is on the flyback transformer (Usuallly black or brown with three wires coming out of it. The bigger wire goes to the pix tube with a rubber cap at the end.) The focus control is on the side. There are two. The top is focus. Good Luck!
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Firstly how long have you had the TV? as poor focus can be a sign of the tube showing it's age. Try removing the rear cover & on the line output transformer which is on the right hand side of the chassis & has a high voltage cable coming out of it which connects to the CRT, you should see on the body of the transformer two controls, one is for the focus & the other is for adjusting drive to the tube ( the brightness level will change). Try adjusting the focus one way, if this makes the picture worse then adjust slightly in the other direction. If this dosen't cure it the feed resistor for the focus may have gone high in value or as stated before, the CRT is at fault.
cristal and IC to be replaced and solderings on all grounds in the tuner unit. maybe costly for a tv of that age, for the fine lines there are 2 ajustements on the back of the tv set, one is focus and the other one is sceen, that ajustement is too high , just turn the ajustement counterclockwise. the tv will become darker
this is not connected about the changed cables,digital boxes.the problem of your television is in focus of picture tube. you cannot adjust this because of some problem in tube.find a right technician so he can fixed this one.
the tv has a configaration that conveys the sets focus on both audio and video performance. full hd resolution of 1920-1080 pixels.
hdmi inputs allow connection of the generation of 1080p sources for the systems which offer 1080p outputs
If there is no other problem, he probably touched the focus adjustment in the back of the set. Open up the back and locate the flyback transformer (part with large red wire coming out the top). There will be 2 adjustment controls on it. One should be labeled screen, the other focus. Adjust the focus until crisp.
Well you did start out good, thats cool, now we have to define focus, Is ir blurry around the edges as well as the whole Picture? If it is, it could be the picture tube, A bad solder connection on the tube socket, and yes it could also be the flyback transformer.