Question about Hitachi CP-X345 Multimedia Projector

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Picture quality My projector has blue "splashes" and dots on the picture. It doesn't distort the picture or anything, just wondering how to fix it.

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  • 46 Answers

Se if the lens, are clean or the dust filter.

Posted on Nov 09, 2007

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Posted on Jan 02, 2017

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My Sanyo PDG_DX100 projector only 100 hours now, its started white dots and balck dots how to fix it. if DMD chip problem, how much it cost me.


Sanyo PDG DXL100 1,white spots appeared on screen,means the DMD chip is broken,you need a new DMD chip.I supply the DMD chip and the price is USD200 We supply original projector parts: lamp, bulb, Lcd panel, Lens, DMD chip, color wheel, motherboard, powersupply ... with high quality and competitive price. any questions, feel free to contact me have a nice day! Jerry Lampdeng Limited

Jul 23, 2014 | Sanyo Office Equipment & Supplies

1 Answer

My projector has a blue flickering hint in the picture, is it a lamp related issue, or is it a lcd problem.....?My lamp do needs replacing because the indicator says so.......but will replacing the lamp...


blue flickering hint, means the lcd panel is break,
or polarizer is break. We supply original projector parts: lamp, bulb, Lcd

panel, Lens, DMD chip, color wheel,
motherboard, powersupply ... with high quality and

competitive price.
any questions, feel free to contact me
have a nice day!
Jerry Lampdeng Limited

Jul 12, 2013 | Epson Replacement Lamp ELPLP30 f EMP-61...

1 Answer

We have an Acer PD 726w that has worked for 3 years, but now all of the sudden the picture quality is poor. There is a purple hue that distorts the image quality.


Alot of people are having image quality problems with there projectors. I had a similar problem recently. You simply need to get it cleaned. Sometimes there is a high dust build up inside the optical prism of a projector which distorts the image over time.

I had mine cleaned out by TP Matrix Projector repairs after there were lots of coloured dots on the image.
They gave a free quote and then the service was quite a decent price in comparison to others.
have it checked out for a free quote and see what they can do. there number is 0161 626 4067.

Mar 01, 2011 | Acer PD726W Projector

1 Answer

My 51" sony rear projector has blue shadow on image. pictures are fine but it has blue shadow. how can I fix that?


Clean the mirror or the blue color gun. You may have it next to a powerful magnet from a speaker system that can also distort the blue. If thats not it it may be bad convergence ICs

Mar 08, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

3 Answers

My hitachi cpx 443 lcd projector recently has been projecting blue dots everywhere on the screen, how can I fix this or what is the problem?


How defined are the dots? Is each blue dot limited to the size of a pixel? I suggest you create a 3 slide image in powerpoint ..one slide completely blue, 1 red and one green. then project each image in turn and note what happens with the blue dot. My first thoughts are you have some pixels that are locked. Once that happens if are pretty much stuck with them. Optical it is impossible for a dust on the lens etc to cause them as if the picture is in focus at the screen the dust is way out of the depth of the field, sometimes you can focus the projector so that the point of focus is the lens surface but then the actual content will be way out of focus...none of which has anything to do with your blue dots. Regards Kevin Andreassend, ICE AV Technology Ltd, http://www.digitaldaytime.com

Sep 15, 2009 | Hitachi CP-X443 Multimedia Projector

1 Answer

Colors are distorting e.g. Blue streak across top of viewing field


unfortunately not. the discoloration is caused by the light filter getting fried due to excessive dust and heat. and you cannot purchase the parts individually. you'll have to replace the entire optical engine.

Sep 03, 2008 | ASK Proxima C420 Multimedia Projector

1 Answer

Picture turns blue


bad Lcd's i guess get the projector looked at immediately before something worse happens

Jan 03, 2008 | Optoma MovieTime DV10 Multimedia Projector

2 Answers

Yamaha LPX 510


I just saw your post & today is Mar 19,2008. I had the same problem and was pissed until I noticed YAMAHA has a good warranty, so I sent it back and they put in NEW OPTICS that are non-organic (I guess the original ones were organic) NOW my picture is much better than when it was new. This picture is so clear I can not believe it.

May 19, 2007 | Yamaha LPX-510 Multimedia Projector

1 Answer

Random dots and no picture


Okay, I had the same problem exactly.

You can't fix it yourself. I took it to the NEC lab and they changed a card. luckily it was covered by the warranty.

danielmarks@walla.com

Oct 22, 2006 | NEC HT410 Multimedia Projector

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