Question about Hitachi 50UX57B 50" Rear Projection Television

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I have waves running up my screen how do i fix that

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Hi
depending on the waves if it is light dark bar rolling from bottom to top it may be a defective
capacitor in IF section or interference comming
for ex:defective neon sign leaky electric power transformer etc. If it is a slow moving
wave but no bars you have a defective power suply regulator and I don't suggest you try to fix it yourself

Posted on Sep 29, 2010

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Posted on Jan 02, 2017

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Make sure to run the Kinect setup and calibration in the Xbox 360 Dash. Move all the way to the right and select kinect settings. Run the setup and follow the instructions there. Make sure to have a Kinect setup card handy. (comes with games.) This should help with any calibration issues. If that doesn't work, try signing in with a different account, or doing an xbox live sign in test.

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Yeah I just read a tip. There seems to be a problem with the wave amp board, I will send you the engineering note. Sometimes though that encoder needs replaced and cleaning is not the total fix. The encoder may need replaced, but I found this also.

I just received this, this morning.



Failed Wave Amp
Solution: thumbsup.gif Fixed! thumbsdn.gif Did not fix. Historically blurry print was caused by oil on the drum encoder wheel. This can be caused by the wave amp board. A cracked capacitor on the board causes the wave amp to produce a malformed amplified wave signal to the printhead. This in turn causes the printhead to eject ink at the wrong times, so the prints look blurry.

You can generally distinguish a wave amp problem from an oily drum encoder. The wave amp problem will usually be an infant failure. The printer will start producing blurry prints soon after it is installed and running. With a failed wave amp all prints will be blurry with no improvement. The drum encoder, on the other hand, may produce good prints and then bad prints and then good prints. Blurriness changes depending on how the oil is interfering with the encoder.

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