Question about Samsung PCL541R 54" Rear Projection Television

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I found the blue drive tuner..

And I turned it all the way up, but the set still does not responded to the blue. The focus doesn't even distort when I adjust the blue lens. The only way I can tell the blue is not as strong is through the three focus lines on the back of the screen. Any other ideas? I have a Samsung PCL542R

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  • Samsung Master
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Have you checked for an open resistor or shorted transistor on the blue CRT socket . Usually its a failed component on that circuit board when there is a color issue

Posted on Feb 03, 2008

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6ya6ya
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A few weeks ago I turned on my Thomson Wysius Tuner 42WB02S and the red standby light flickered from red to orange then green before going back to a flickering red light. The TV screen then displayed a...


Dear Mrs Burger,
I have exactly the same problem with my Thomson, have you solved your problem yet? If so, what was wrong with your tuner?
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Fuji finepix s1500 - difficult to get it to focus at close macro. I found that I have to have the lens at its widest angle for the camera to focus on a close subject - like at 2 cm like the manual says. If...


Yes. You won't have the same macro focussing ability at all focal lengths.

But usually the important thing is that it's not how close the camera can focus, but how large the image is, so you'll often find that a longer focal length (i.e. not wide angle) will produce a larger image of the object even though the camera has to further away to achieve focus. This also results in less distortion as extreme close-ups in wide angle produce extreme perspective distortion. It's why a wide angle close up of a face results in an exaggerated nose and mouth.

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Distorted Picture


I don't think that the cable is your problem. Set may have a defective tuner or small signal board. (Tuner is soldered onto the small signal board).

Most likely fix is to find and replace the small signal board with tuner. Should be able to find one for less than $200.

Another thing to try is your video inputs. Use external devices such as a DVD play hooked you using proper video lines and check you inputs. Are they doing the same thing as your cable? If not, then it maybe just a tuner. Some makes and models won't allow you to solder in a new tuner without a full board replacement, but this however may allow you to hookup a VCR with a tuner built in and from VCR to your TV using video input jacks and then programming the VCR tuner to all your cable channels may get your set watchable again without having to tare it apart and replacing a board. However if your input jacks are distorting like the cable channels are, then a small signal board replacement is a must for your set.

Good luck!
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Toshiba 50h72 picture and sounds takes 20 min to warm up


Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projeciton sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

42d3683.jpg

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Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

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I will need the model number of your set in order to help you. It sounds like a samsung with bad convergence ICs. But let me know the model number and I can help you with repairing the problem.

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3 Answers

Akai 37'


hi there it might b a little late with this as u posted this in may of 08 but my recent years of tv repair may help it could b the tuner in there older tv set had a similar problem with the tuner try opening tuner box it may need unsoldering but once in check all grounds for bad solder joints and resolder if needed the blue screen u see is normal when no signal input is found making it most likely the tuner.

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convergence amp ic bad
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

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my suggestion would be...to replace the focus block..john

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