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4 yr. old Hitachi Ultravision Digital no picture

We get sound, can change channels, just no picture. Was working fine the night before.....
Possibly no high voltage to the tube (when on, won't raise hair on my arm....)

Is it dead?

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Hitachi did have some problems with cold solder joints on Horz. drive transformer. Although the connections looked o.k. you had to evacuate old solder and resolder. Could ne horzontal sweep transistor as well. (Hitachi uses to use one x-istor for HV drive and one for sweep).

Posted on Feb 08, 2009

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One of two things may be happening. 1) a loose connection (cold solder joint) has developed on the board that supplies the horizontal section or loose contacts around the flyback transformer . 2) A short in the line that feeds the horizontal . Without the horizontal section running you will have no High Voltage to light the pix tube or as you said won't raise the hair on your arm . If you take it to a shop tell them your problem. Your estimate would be based on the size of your TV and the parts and labor needed . Asked what there estimate fee is to look at the set if you take it to them . Or if you have soldering iron and some skills take it apart and give it a good look over . Make sure it is unplugged and be cafeful of the red wire that connects to the picture tube. Good luck

Posted on Feb 06, 2009

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