Question about Standard (CRT) Televisions

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My son was tossing marbles around and it tapped the upper right conner of the TV screen and now the picture doesn't come in at all. It has lines displayed throughout the tv. Is it fixable?

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If it still has a sound it can be fix,try to open it and it might have losse solder cause by the force

Posted on Jan 13, 2009

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There is a sound but no picture in to the screen and there is horizontal line


Tv have a Horizontal IC out is dead or cold soldering.Make a fist with ur hand,bang on the tv frame bazel a couples of times.If the hoizontal line flashes back to normal screen?Tv have cold soldering around horizotal IC area.U have a soldering iron tool and a roll of solders,know how to do basic soldering?Take the back of the plastic screw driver tap around for cold soldering area.Resoldering those area.No horizontal tv screen flashes back the IC out is dead,require replacing another horizontal IC output.

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it sounds like you have horizontal colapse a very complect repair try hitting the tv if the screen comes up full picture then its a dry joint if not there is an ic or power fault toss it

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HELLO

In the UK I'm not familiar with this American set, but what I can tell you is there is a number of dry solder joints on or around the field output IC causing what is known as FIELD COLLAPSE.

To find bad joints I use a long, thin and round piece of wood (remember wood does not conduct) I just tap around the board until I hit the right part and you know when you have by the results on the screen then you can switch off and resolder.

If you are going to attempt the job yourself - BE CAREFUL - high voltages are generated inside TV sets and pay attention to the panel fitted to the tube base this will give you one hell of a kick if you touch it!

BUT.....if you are not confident of doing this yourself and have any doubts then don't do it yourself and get a TV engineer in sort it out.

GOOD LUCK (:-)

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