I have a bush tv and on and off for a while the screen goes yellow and the picture is a bit blurred,it usually rights itself if you turn off the tv and wait a while.now this does not seem to work,sound is fine but everything is yellow.you can make out what is happening but its not clear
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This is common issue of the channels that use 4:3 format while TV is designed for 16:9. To get it disappear, you just go to picture option, choose WIDE FIT, this fuction will widen the picture to whole screen. Of course, you have to accept the picture is blur a bit.
This is the first sign of a failing Red Picture Tube. Tubes will blur to the right when they get older. You can try to turn the screen control for the red gun down so the blur goes away. But eventually it will get worse.
This is likely solder connections cracking on your convergence ICs. If you can bump the tv and it goes back to normal, it just needs resoldering, but if it doesn't, then it needs the ICs replaced. If the convergence is out, you will see a bowed picture and the red, green, and blue will be separated. Worth repairing if you can find a company to do it affordably, I can help you repair yourself if you have disassembly and soldering skills.
if yo know how to solder , re solder your tv, second adjust the IF transformer by using the plastic or wood stick. IF transformer is looks like a cube made of metal with an adjustment screw at the top. try to adjust it and observe what happen.
here is the link to the bush support site;
Although they have no instructions online they claim they will be available soon.
If you can't wait, Check this thread;
the cables described are a standard cable available in any store, usually described as a "Triple RCA Stereo/Video cable" or something similar - check the picture. If you want a few more detailed pictures go to this link, there are many;
The yellow is for video, red and white are for left and right audio channels. You probably have the same colour connectors on your tv, in which case just plug yellow-yellow etc. If not, then please post back the make and model of your TV, or a photo of the connection options you do have, and we can talk you through it, there are many different adaptors available for practically any configuration.
To get the TV to diplay the DVD channel is a different procedure for most TVs, so please give details and we can help get you watching.
Hope this helps :)