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I'm in the process of repairing my red convergence failure on my JVC AV48WP30. The red convergence failure shows as a red "sag" or bow in the upper left corner of my screen, but could be blue or green in other parts of your screen depending on which convergence IC malfunctioned.
I'm not an expert, but from what I can tell if you have the sag of any color, one of two convergence IC's failed on the convergence board located in the front right cabinet portion of your TV (don't open the back of the TV).
The failure could have been caused by a faulty resister nearby. Look for smoked or burnt resisters near the 804 or 805 convergence IC's. The IC's themselves might be clearly labeled STK392-110, but you could upgrade to 150's or 180's for better heat tolerance. You may have to replace one or more resistors as well. Unplug the TV, open the front cabinet, desolder the existing IC's and replace. You could just swap IC's, resolder and power the TV on. If you notice a sag of a different color, now you've determined it was definitely a convergence IC failure. The IC's themselves ran me about $15 each from a TV repair shop. Call first to make sure they have them in stock.
What else can I help you with?
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To unlock a JVC home stereo, first try entering the correct password or code if you set one previously. If you don't have a code, unplug the stereo for a few minutes, then plug it back in to reset it. If these steps don't work, consult the user manual for specific instructions for your model or contact JVC customer support for assistance.
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Kunihiko Sato was the first president of the JVC company.
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JVC products mainly include audio devices and accessories for your devices. All of JVC's products can be purchased at their official website which cannot be disclosed.
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