Question about Televison & Video
it s due to damaged convergence IC.There are two and large IC’s that control the convergence in a big screen set. They are secured to a very large aluminum heat sink. T they are located on the signal board (on the left as you look into the back of the set).Along with the convergence IC’s there will also be some associated components that will need to be replaced as well. There are some resistors that are part of the convergence circuit that will be open and need to be replaced. Most likely these will appear charred in the center. If you have an Ohm Meter or a DVM, check all the resistors that are close to the IC’s and you should be looking for either ones that have opened or have changed values.There are also two resistors on the front of the board located in the middle that are fusible link resistors, these should be checked for opens and replaced if they are found so.I would suggest that you contact a service center in your area for a complete diagnosis and repair, as this type of repair can get a little tricky. But if you want to repair the set yourself, just remember to be careful. The capacitors and CRT’s can hold a charge and may shock you.
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Posted on Oct 02, 2009
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Posted on Jan 02, 2017
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