Question about JVC AV27F476 27" TV
This is a common problem when electronics get older. You have a bad solder joint on the video IC. If you can solder you probably can fix this. Unplug the set. Remove the back. Remove the main board. Looking at the main board find the IC that has a small shiny metal can which is flat on two sides with rounded ends about 1/4 inch thick. Usually the boards are marked as to what parts do. If you see an area marked video that would be the best place to look. The IC will be relatively large. Probably about 64 pins. Should have a number on the top which begins with TDA*********. You will need a soldering iron of about 35 watts with a good conical tip with a small point. Once you locate the IC inspect it with magnification. You will probably see hairline cracks around the leads which go through the board. Resolder all the leads being careful not to bridge any pins. If you do happen to bridge any remove the solder with solder wick and resolder. Look at a other leads in this area and resolder any suspicious connections. If you have the time just resolder all components in this area. When you are sure you have all the bad connections reassemble unit and test. If all went well you should have a reliable unit. If the problem persists resolder all connections on the board. After that if the problem persists replace the TDA******* IC. This should solve your problem. Let me know how this works out or if you need anymore assistance.
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Posted on Feb 14, 2010
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Posted on Jan 02, 2017
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