Question about Panasonic PT-51G44 51" Rear Projection Television

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Dark picture The picture is dark and I have opened the unit and clean dust out of the inside. I have used the suggested cleaning solution on the screen, but I end up with sharper dark image. I increased the color and contrast to maximum, but dark colors/objects on the screen are black. Are the bulbs the issue? What causes the brightness to diminish? TV is over 10 years old and has been taken care of.

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Do you get all three colors? red, blue and green?

Posted on Jan 30, 2008

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You must adjust the green and blue in the front of the tv.

Posted on Jan 25, 2009

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3 Answers

How can I clean out the inside of my lense?


dont worry about dust too much unless it actually affects your image sensor.check it by pointing to a white wall or sky with f put to it maximum like 32/22 , focus and take pictures.. if its problem with the lens then it will make prominent dark speckles on the image.. but if you get dark speckles even at lower f - stops like 1.4/3.5/5.6 then its dust in the sensor.

dont try cleaning your sensor yourself as you may spoil it and finally have to refer a service center of the brand .

Jan 14, 2013 | Canon Cameras

1 Answer

Picture problems


Two things to look at from rear with back off: one is the inside of the screen and or the large mirror in rear of unit--do not touch mirror.

second is the unit has a small lens (2-3 inches) the points up towards the mirror---dust or such on it will cause this--it can be cleaned with a lens cloth.

If the mirror has this (uncommon) the entire front of set would have to be removed (screen units) and that is not real easy.

If lens and mirror and screen are ok problem is INSIDE the optical unit that the lens is part of---on rare occasions that can be cleaned out with compressed air.

without seeing a photo of what it looks like this is all I can suggest.

Oct 22, 2012 | NEC Toshiba 42Hm66 42-Inch 720P Dlp Hdtv:...

1 Answer

All of a sudden, i see a dark black spot in the camera lens / picture... the spot appears on all the pictures. Please suggest fix.


Hiyour unit has dust a particle in front of image sensor surface (ccd unit). you or someone else must had used to clean front of lens or side of barrel caused the particle got in. In order to remove that it need some sort of complete disassemble require. I recommend to bring your local repair shop. They would charge around $35 to 115 depend on what they want to charge.

Jun 03, 2011 | Canon PowerShot SX100 IS Digital Camera

1 Answer

I just purchased a used Sony KDF-60XS955 Projection TV. I have replaced the lamp unit, however, the picture remains fairly dark. The picture is only clear when you are positioned directly in front of the...


replace the Light Engine,but you can try cleaning the lenses inside light engine you have 3 red, green, blue,You also want to be very carefully when cleaning.

Sep 12, 2010 | Sony Grand WEGA KDF-60XS955 60" Rear...

2 Answers

My unit seems to work fine, except there is a dark shadow covering the right third of the projected image. Is this a sign that the bulb is going out?


this is the light tunnel needing to be adjusted or replaced because is has collasped due to the heat given off by the lamp during the life of the projector.

Aug 27, 2010 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Copier prints dark on lightest setting


this could be down to several thisngs lift the lid on the top and look at the glass area does the underside look clean or dirty? have a look at the scanner area to see if there is dust ont the mirrors you should see this when you do a test copy press the print button and look at the light unit and the mirrors as they move across the glass if you can see dust or dirt on the mirrors they may require cleaning.. if so turn the machine off take out the screws holding the glass in place lift the glass out carefully.. sometimes they stick down if they havent been cleaned lately so pull up.. take a clean dust cloth slide the scanner unit out for access and clean of the mirrors.. p[ut back together and test if no better open the fornt door and look at the units inside to see if you can take them out..give these a check to see if there are marks on the surfaces of the units.. if the copies are dark usually on a old copier its down to the dust..

Aug 04, 2009 | Office Equipment & Supplies

2 Answers

The Print has white stripes


White stripes are caused by dust and toner powder on the scanner window, which is situated in the bottom of the printer, under the drum unit. Open the printer, remove the drum unit and using a soft cloth with a little meths wipe the window clean of toner and dust. It's quite dark inside the printer, so use a torch to find the glass panel (only about 10mm deep x the width of the drum).

Jun 24, 2009 | Brother MFC 9180 All-In-One Laser Printer

1 Answer

Video and images too dark


You can try this. Open the cover (Unplug the monitor and leave at least for 30 minutes before doing this). See whether dust is there. If there is dust, get a 1" paint brush and gently remove the dust with the brush. Always sweep the dust away from the unit. If black dust is present around certain cables and around the flyback transformer (that black box covered with aluminium plates), use a soft cloth to wipe them (do not wet the cloth). *Make sure you dont turn those rings on the back of the tube while wiping the the dust. After cleaning the dust, replace the cover, connect it to the PC and check. You will have a brighter picture!

Jun 01, 2009 | LG Studioworks 563N 15" CRT Monitor

1 Answer

Picture getting dark


My jvc 27" tv was so dark I could hardly see any night scenes, even with the bright all the way on. If you push the sleep button, let go, then hold down the video and display (together), the service menu will come on. Scroll down to #7 (too dark) and adjust the brightness there. Works immediately. Good luck.

Nov 29, 2008 | JVC AV-27530 27" TV

1 Answer

My picture is dark


There are 3 tubes , at the end of each tube is a bord with a plug on. inside that plug is 2 point's that sparks, you must open that plug and clean points . you will see dark picture ok.

Oct 25, 2007 | Philips Magnavox 9P6034C 60" Rear...

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