One of the major problems with the electronic items is the aging of components. i think the components in your TV have aged quite a bit. you can of course repair your TV sir. But it will only be a stop gap arrangement. There is no guarantee that the problem won't reoccur. Also the amount you spend for repairing the TV can be spent for buying a new one. my recommendation is that Go for a new TV with latest features that will serve you in a longer run
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No,the tv main logic pcb board have dead components parts on it and also the tv video boad too.This tv must take to tvs shops and get estamate see it is worth the priced to be repair or compair the prices could be cheaper just replace another tv.
I have over 10 years experience in electronic tech support.
I know this isn't what you want to hear, but the problem you've described can't be fixed with troubleshooting. Your TV will have to be repaired. There is a part that has developed a defect and needs to be replaced. The question will be, is the part still available? Before paying a TV repair person $75+ to diagnose the problem, ask yourself if you're willing to pay $150 minimum to fix this particular set. Also keep in mind that most TVs that old have a very limited number of replacement parts still available. Normally it will cost at least $75 to have the set looked at by a repair shop (diagnostics). If the part needed to complete the repair isn't available, you won't get that money back.
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Symptoms shows TV got problem in Horizontal deflection area that's why you do not see picture and get only sound.I think its not worth to repair as its 14 years old model and spear parts might not be available or cost too much.
Since you still want to repair it, let me know exact model number of TV to check parts are available some where?
I have a Philips Matchine television which does a similar thing, the problem is in the receiver part of the set, where I have traced the Video signal with an Oscilloscope to a particular Chip (Integrated Circuit). By increasing the Contrast to maximum the picture can be brought back again, but still lacks contrast. The fault is varies as the chip warms up. Therefore you can locate the chip by cooling or heating it from a special non inflammable spray can.Have you tried the scart input which may work OK, then you can use the television as a monitor, as I do. Cost of repair is not worth it.