Question about Hitachi 61SWX10B 61" Rear Projection Television

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I have an older model Hitachi 32" ultravision CRT tv. the video just collapsed into a thin horizontal line (about 1/4"). Video is fine. Any help would be greatly appreciated. Thanks.

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The vertical circuit gets too hot and burns out the a trace in the circuit board. It is a large, component to the circuitry with a heat sink and it is OBVIOUS to find. (char marks). If you know how to discharge a tube television, then you can bypass the trace with a piece of wire :P Note: I had to fix this problem twice, first time the fix was to just re-solder it, but it broke again a year later. After that the whole trace burned out and I just bypassed it with a piece of wire. It has worked ever since! (4 years and counting)

Posted on Dec 30, 2012

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TURN IT OFF AND DO NOT TRY TO USE---if a thin line left to right in middle of screen it is vertical problem---the set should shut down but even seconds count here--this can burn a mark on all three picture tubes instantly and it is permanent.

Problem if small line left to right in vertical circuit.

Let me know what you know and I will try to help--I know these sets very well.

SD TECH

Posted on Sep 22, 2010

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1 Answer

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Either the screen voltage to picture tube is more than normal, or the video processor IC has damaged. There is an other possibility that there is no voltage at the video output card, plugged on to the neck of the picture tube. Anyway, your set need a through checkup, and the work is somewhat skilled one. Just check this site. Soemtimes you might get some details about this fault. The fault is called vertical retrace lines. Thin horizontal lines all across the screen with an inch apart. One among the posts published in the following site have details about this fault.
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