Question about Samsung PCN5425R 54" Rear Projection Television

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After replacing convergence board, now tv will turn itself off when I try to manually adjust the convergence Red cant seem to get it to move, samsung pcn5425r proj tv, is there something else I need to do in service mode.

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You probably also have a bad digital convergence box. I have a tip at http://www.fixya.com/support/r4273935-replace_digital_convergence_box which explains how to fix the problem and where to get the parts. Let me know if you need more help. Thanks for using FixYa and for the generous rating.

hardrocko

Posted on May 09, 2010

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You have a bad sensor, a bad digital convergence board, or the new board is not working correctly. I would start by swaping out the convergence board or exchange it for another one. Good Luck

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MY SAMSUNG TV :MODEL SP4R1HL1XSHI Version SV01 was working alright until we moved to a new location. Now I have the visuals in the top quarter of the screen presenting double image and a small red 'crest'....


Tv have problems known as a convergencce problems.Check ur remote go into tv menu.Go to convergence adjustment,try auto convergence.The auto convergence din't fix ur problems.Than the tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.Try the website like Tvrepairworld.com to buy a whole rebuild convergence board for the replacement.The Akai/Samsung DLP tvs used the same convergence board.

Sep 08, 2010 | Samsung Televison & Video

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The red color seems to be sperating itself from the actual picture. The logos on screen are showing up as double image. pls advise what could be the problem


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 projection 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 can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Aug 14, 2010 | Sony KP-51HW40 51" Rear Projection...

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Seeing double red and blue


replace the convergence board. You can get one at the following link.
http://servicemanuals.vstore.ca/

Apr 12, 2009 | Samsung PCL545R 54" Rear Projection...

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Samsung Rear Projection Problem (not convergence)


The tv has 2 focus adjustments for each tube, mechanical and electrical.

1. Mechanical focus is set by looking at screen from back (through inspection plate on back of most samsungs) and rotating the lens assembly on CRT. loosen wing nut and turn lens assembly to go through focus and back to best position.

Put convergence pattern on screen and manually misadjust bottom red and green lines convergence so they can be seen through inspection hole.

With back cover of TV off you can usually reach your hand up beside the lens assembly to loosen the wing nut then rotate to adjust. Green is in the middle. The focus will be obvious when you rotate and look

When you are finished make sure the foam dust protector is not over any of the lens assemblies and the wing nut is tight.

2. Electrical focus - located at front of unit. the front grille/speaker cover is removed and maybe a cover over the front crt inspection hole.

In the inspection hole there is a black plastic "Focus/screen adjust Assembly" with 2 rows of 3 controls.

One row is focus and the other is screen. The middle controls are for green with R/B on either side. Usually the controls are labelled as "focus" and "screen". You want to adjust the focus controls, one for each color. Look for the focus or screen label imprinted in the plastic. Don't play with the screen settings.

With the same misadjusted convergence pattern you can see a red, blue and green line. Adjust green focus and watch green line for best focus. Do same for other 2.

Screen adjustments are very exact and delicate. The easiest way to deal with them is to turn color off in Customer adjust menu. Put any color tone adjustments in the middle (low, med, high, put at med).

You should have a b/w picture if there are no crt or other color related faults. If it is close to B/W leave screens alone.

If the pix is too green, then the green screen setting must be reduced a small amount. Do not play with these adjustments as most TV repairrers have a difficult time adjusting them.

If focus adjustments don't help then focus control or CRT may be defective. Needs expert to determine.

easyab

http://calgaryconvergencerepair.weebly.com/convergence-ics.html


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I have a 2003 model Studio series projection screen .model no 42hd43a ,hdtv 1080i monitor


I have a service manual for this tv, problem most likely stk392-040 ic's , second don't mess with the convergence magnets unless they have broken loose, there is also a control board for the cg module

May 29, 2007 | Orion STV2763 27" TV

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Convergence board replace, still cannot manually adjust covergence


Do you have everything pluged in?
did you get a new board or repaired board. I think it's defective if everything checks out

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