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The LXI or Sears brand used philips TV's. These sets are known for bad coolant fluid. In between the picture tube and their lenses is a layer of clear coolant. Over time the coolant breaks down and causes the picture to become blurry. This can be a complicated repair involving removal of the picture tubes and lenses. Have a repair shop check it for you. Thanks for using fixya.
Need a better description. Sounds like either lack of B+ supply giving lack of width, low EHT, or you have East West transductor circuit being faulty. Is there lack of width and is it bowed in? Might be a dry joint around this area as the transductor resonates at line frequency making this dry jointed. Need a manual meter to diagnose correctly I am afraid.
is the blurry all around the picture have different color like a smear of red, blue or yellow? if it is i think the posistor of your tv is not working. it is the one who activate the degaussing coil around the picture tube the prevent color miss-landing upon opening your tv set.
Have you tried to change the settings like to scenery or adjusted for lighting that could have an effect. The only time it's blurry for me is when I don't adjust for the picture I am taking. The camera itself focuses so maybe there hasn't been enough time for it to focus. Try those things and if it doesn't work I would take it in to a camera shop maybe it has internal problems.
This is no easy fix it yourself job you need to take it to a repair shop.Ill bet you have a bad cap 16v220uf .its located on deflection board.Also these sets have poor solder connections. ThankYou for using FixYa . Have a Nice Day.
The first thing to check is for loose conections,the problem is related to the high voltage but it can start in the main board with one component loose,when the high voltage is developed it goes to what is call the distributor block,a lot of sets have the focus and screen controls coming out of this block for each picture tube,this block might be bad but before we go to him we need to check everything is solid in the main board.If you are familiar with electronics you can remove the back cover and tap the chassis with a wooden or rubber handle to see if the set reacts,if it does you need to be atentive what area makes it react and flip the board to do some resoldering,If you are not too familiar with tv service you need the assistance from a servicer.Let Us know how it goes or if you need more information.