There is a red block in the middle of my television. It makes the TV look like a reverse widescreen (dark in the middle light on the top and bottom) but the picture is still visible throughout the whole TV.
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Re: Red block in the middle
You have dry joints.
Whack it hard on the side next time it starts going nuts and see if it comes back. That's always a good diagnostic tool for the pros. If it does, you have in intermittent connection that will deteriorate over time. If not, you could just have a bad convergence amp
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Faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent.
1. THE SYMPTOM IS BRIGHTER IMAGE ON THE SIDES AND DARKER IN THE MIDDLE. THE PROBLEM CAN BE WITH RED BLUE AND/OR GREEN. CHECK FOR PROPER CONNECTIONS TO THE "DAG COATING AND CONNECTIONS TO PIN 9 ON THE SOCKET OF THE AFFECTED CRT. MAKE SURE THESE GROUND POINTS ARE COMMON WITH CHASSIS GROUND
Sounds like you have two differant problems. A red drive or red picture tube is bad and the conbvergence IC's are bad. To test the red drive disconnect the green picture tube socket BUT MAKE SURE THE SET IS UNPLUGGED!!Then remove the red socket and move over to the green tube. Then turn on the set. If you get the same out of the green then you have a drive problem that needs to be trouble shot for a bad componet. If you do get a picture with the red connected to the green then the red tube is shot. If you know how to read a schematic, get one and then you should have no problem troubleshooting the red drive and the convergence problem. If you dont then there is no easy or quick fix as this is a solid state set and there are no user replaceable parts inside this.,. Your going to need, for safetys sake, call in a trained tech to assist you with this repair