Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

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Red distortion or showdow outlining images will not focus right or stay focused does not have the high definition picture that it should

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Most of the time I see this problem on this model it is caused from the convergence chips going bad. Also there are a few resistors that open on the circuit board. To repair this you will need soldering/desoldering tools and test equipment. The only other thing that I've seen cause this was leaky gaskets around the picture tube coolant chamber. This usually causes major circuit board damage if left unchecked. The first problem can be repaired for usually 150-325 u.s. dollars but the coolant leakage problem sometimes is unrepairable.Good luck and let me know if I can be of further assistance. Russmann.

Posted on Jan 03, 2011

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Posted on Jan 02, 2017

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Image not focused


Possible worn out tube. The focus adjustment is on the flyback transformer and has to have the back cover removed to access it. The flyback will be a black and have a red wire connecting to the crt tube. This is very high voltage and can be dangerous. With a plastic screwdriver you can turn the focus adjustment knob on the transformer. Do not adjust the screen control knob. If the focus does not clean up, then the tube is probably worn or the flyback is bad.

Nov 27, 2013 | Samsung SyncMaster 1100MB 21" CRT Monitor

1 Answer

When I turn on the TV, the picture is fuzzy. After five minutes, the picture is clear but any words are out of focus even the menu for adjustments is out of focus. The convergence for red is clear but...


Hi,

Below are some troubleshooting tips for a TV that has a fuzzy or blurry picture;

If your Plasma or LCD TV picture is blurry or fuzzy there are several things that may be causing the problem. It's worth running through the following list before seeking service. You may find yourself saving the full cost of a TV repair.

Make sure you are using the appropriate cable box for your TV. If you have a high-definition TV you should also be using a high-def channel box from your cable provider. Watching standard definition channels on a high-def TV can make the picture look distorted and fuzzy.

Not all cable channels are broadcast in high-definition. When you stretch a standard definition picture to fill the full frame of your wide-screen TV it may look distorted. You can try changing your TV display settings to show standard-def channels at their native resolution. This will create black or gray bands on either side of your picture.

Ideally all of your video components will be connected to your TV with HDMI cables. Your next best option will be component video cables. If your cable box does not have HDMI capabilities, contact your cable company about upgrading your box to one that does include HDMI.

Make sure there is no glare on your TV from a window or other strong light source. This can significantly degrade the quality of the image you are watching.

If your TV has digital noise reduction, try turning that feature on.

You can adjust your TV's sharpness and picture modes to see if that improves picture quality.

Try plugging the power cord into a different electrical outlet and/or surge protector. You may be receiving electrical interference through your power cord.

Trying moving any nearby electrical devices away from the TV. They may be creating interference that can degrade the picture quality.

Let me know if the above helps or not, so that I can direct you further on what do next.....

Best regards.

Apr 14, 2011 | Zenith IQB50M90W 50" Rear Projection...

2 Answers

I bought the 10x25 camera binoculars and only one lens will focus using the center dial. Its almost like the other one needs to be focused at the eye piece itself. The pictures are not clear and are...


It is common for binoculars to have one independently focusable eyepiece.  If one eyepiece can be rotated, then that is the case.
If that is the case, focus through the one that DOES NOT rotate using the center control until you get a sharp image on that side.  Then rotate the eyepiece on the blurry side until the blurry side is sharp.  If you succeed at this, from henceforth the center control will focus both eyes adequately

Aug 11, 2010 | Sharper Image Optics

1 Answer

Have Sony KP-57ws500 rear projection i had the bulbs replaced 3 years ago now itseams as if everyting is out of focus.images outlined in green and red.


Hi,
It sounds TV got convergence out ICs failure problem and causing 3D image or outlined picture.
There are 2 convergence out ICs mounted on D board in TV that need to be replaced.
Let me know if you need part number of ICs if you want to replace by yourself or call local Tv tech to fix it.
Thanks.


Dec 04, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Turn Signal Lever 2004 Ford Focus LX


$35 sounds right for the lever. It definitely sounds like it's your lever acting up as the contact seems to be stuck

Oct 02, 2009 | 2004 Ford Focus

1 Answer

There are blueish-purple crystal-like distortions in the projected image. They actually can be brought into focus to look at, and at that point the projected image is extremely out of focus. So, obviously,...


either there is something on the inside of the lens, or there is something on the lcd prism face. if it was the lcd panel, it would be in focus with the picture. take it in for a good cleaning.

Aug 14, 2009 | NEC MultiSync MT840 Multimedia Projector

1 Answer

Have a Sony KP-51WS510 with red outlines


In replacing the CRTs, there are multiple focus adjustments. The basic one first is the Mechanical lens adjustment on the CRTs, (in this case red), the second one is the Electronic Focus on the Screen/Focus Block on the front of the unit behind the front panel. The third focus and on of the most important is the Beam Centering Focus. (In this case RED CTR) It is located on the neck of the CRTs. They are the first set of adjustment rings up from the CRT Boards. If any of these focus adjustments are off they will cause a symptom like yours to occur. Normally these adjustments are made before any convergence adjustments are made. I would double check to see if the repairman made these adjustments.
I hope this helps
Skyassoc

Jun 29, 2009 | Televison & Video

1 Answer

Focus problem, see Green and Red misalignment;


this could be caused by the loss of the power to the converge circuit or the failure of the converge chips-stk-xxx-xxx if the problem pops in and out it's a connection problem.

Oct 09, 2008 | Sony KP-46WT500 46" Rear Projection...

2 Answers

JVC 56TH INC. IArt Rear Projection


If the red is colored outlines or 3d picture then it is a convergence problem.

If convergence is ok, then most likely screen/focus control assembly.


Easyab

Apr 21, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

AF flashing green, red AF sign on screen - won't take pictures


When you depress the picture button you should both hear the camera making motor noises and see the image focus changing as it seeks the proper focus for the image. If no focus movement takes place and you hear nothing then the focus motor is either completely jammed or malfunctioning. Alternatively focus movement may take place but it never finds the right focus point. Or you may hear a buzzing or clicking sound when it should be focusing. These symptoms can be caused by impact or, more commonly, sand or other contaminants making their way into the delicate system which moves the focus element. The camera will require professional repair in either of these cases. David Millier Advance Camera Repair

Feb 22, 2007 | Nikon Coolpix 4600 Digital Camera

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