Question about Sony VPH D50HTU Multimedia Projector

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Waves HelloI'm recently trying to reinstall a VPH-D50HTU/M with a Key Digital Scaler.Feeding it with RGBHV i find that I sometimes get a small wave distortion that rolls vertically up the 3rd top quarter of the screen. What is this?Also the image is slightly discoloured except for asmall vertical bar on both left and right sides.Please helpMark

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I think your prob is not simple if anybody tell u do this or tat don't do it because i have a same prob but my fault is try myself and it becomes more disable and father beaten me
so acc to my opinion go to the expert and where u buy this he normaled your problem don't worry i do the same thing
and u again enjoy

Posted on Nov 19, 2007


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Oct 06, 2007 | Sony VPH D50HTU Multimedia Projector

2 Answers


Hi hoovs, Waves streaming normally comes from the 60 cycles hum of the AC mains. Sometimes this is caused by poor or loose grounding in the video cable or at times a weak or defective capacitor in the power supply of the monitor or at times low voltage supply to the monitor. If after checking your cables (both power and video) are not loose and are snugly fitted to their connection points and you still get the waves, then you are probably better off returning the unit for replacement. Another thing you can check is if the monitor is getting enough power. If the monitor's power supply is rated 100~240 VAC, then it should work out ok. If it's got a 240 rating and you are using it in 110, then the monitor is not getting enough juice which may cause the waves. On rare occasion, waves may be eliminated by simply plugging in the AC plug of your monitor the other way around. Hope this be of some help to you. Pls post again how things turn up. Kind regards.

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