Question about RCA HD56W58 56" TV
If the message "sensor is unresponsive" crops up then the problem is definitely electronic and lies somewhere in a loop that starts near the tube base, goes to the main board and back to the tube base. However, you can try to do a manual converge by adjusting the ring permanent magnets on the neck of the tube (right behind the scanning coils) while something is being displayed. Normally these magnets are secured with a clear glue to minimize drift. Use a heat gun to soften the glue and then turn the ring magnets around until you are happy with the picture. As you know, this part of the TV has some pretty dangerous high voltages so try to keep your left hand in your back pocket while doing these adjustments with your right. Good luck.
Posted on Jan 18, 2008
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