Question about Hitachi 43F300 43" Rear Projection Television

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Colors won't stay set

We were gone for 2 weeks and our house got very hot while we were gone. Ever since then, we can't keep the colors adjusted

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NOTE: Manual Convergence settings ARE LOST if the customer returns to AUTO Magic Focus mode. (More Details) this situation is normal. Bottom line: This is caused by two issues, The Centering is off of any or all CRTs. (Don't forget Red and Blue Offset values). The Horizontal Size needs to be changed by increasing H. Size by 20mm. Readjust the Horizontal Size to the NEW specifications. These are different that the original Service Manual. They have been increased by 20mm on 51", 57" and by 25mm on the 65". Before replacing DCUs, Please CHECK and confirm if any of the three color center alignments are off and readjust the Horizontal Size to the New specifications.. TO CHECK. Clear DCU data by holding down the DCAM "Service Only Switch" and then POWER. Make sure the Green is centered. Make sure the Red and Blue is offset from center with respective offset value according to the SM information. Readjust the Horizontal Size to the NEW specifications. These are different that the original Service Manual. They have been increased by 20mm on the 51" and the 57" and on the 65" it's increased by 25mm. There IS NO NEED to replace DCUs. The DCUs are not defective...All that is needed is to confirm the Centering Adjustment for the three colors and adjust the Horizontal Size to the NEW specifications. Adjust if any color is found to be out of adjustment specifications. If you don't understand this then you need live chat!

Posted on Oct 04, 2007

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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My tv will work fine for say 1 minute then keeps flashing green and shuts off i have looked up the code it says its the D borad thats gone bad is there a wasy i can self fix it.


The "D board" is the flyback transformer, but if it was bad, you would have no picture at all. Here is a proven method to get it to work (for a while....)

The adjustment method is to put the set on a video input with nothing conected
to that input. Turn the screen control up slowly until those fine lines appear
and then down until they just disappear. Do this with all three colors. You
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You would want to touchup the adjustments after a warmup of a few
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If the adjustments are
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