Question about Samsung PCN5425R 54" Rear Projection Television

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COnvergence issue I replaced the main board. I haven't looked at this thing since march and I'm itching to fix it now. The main board did not fix the problem. I still have the old board and have not messed with the service mode settings. Someone suggested that I change the color ICs. Is there an easy way to do that? I have the service manual but it simply doesn't address the issue I'm having. THe perfect focus issue is still non responsive. Thanks.

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  • meisinger12 Jan 16, 2009

    I am having the same experience, did you ever get this resolved?

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  • Samsung Master
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What board did you replace when you say main board. was it the board with the flyback on it? Let me know and also verify if your model number is the PCN5425R and let me know exactly what happens when you try to run perfect focus. Please respond to this post so I can have access to previous posted info. thanks

Posted on Jun 19, 2008

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Samsung HDTV model HCL4715w1 has horizontal wavy lines in the middle of the screen. Is it worth Fixing? Any solutions to this problem?


Yes,tv screen have R,G,B colors lines mis alingnments,have colors shaded pictures or 3D pictures look aike?Tv have a problems known as convergence pictures problems.The tv convergence board it is dead.This convergence board must require replacement of 2 STK convergence ICS and some or all of it resistors too.Fixed the tv convergence board to solved the tv convergence pictures problems.U have some mechanical skills like take things aparts and putting it back together again?Yes,try website like Tvrepairworld.com to buy a whole refurbish tv convergence board for the replacement.The DLP tvs brands names Samsung and Akai used the same tv convergence board.Or tries those tvs shops will cost u like $300-$350 for parts and labors.

Jun 28, 2011 | Samsung HCL4715W 47" Rear Projection...

1 Answer

I have 52" rca/ge itc


replace the 2 convergence STK IC BEFORE replacing the IC make sure that all the pico resistor are not open check the resistance with an multimeter replace any open reading resistor.replace also all bulging capacitors on the convergence section...good luck let me hear how it goes.

Mar 18, 2011 | Televison & Video

2 Answers

I have an RCA HD52W59 HDTV and my kids were watching the other day and all of a sudden the screen went bad. The sound is ok and you can still see the picture however it looks like your watching in 3D...


This is normally an easy fix. I've fixed several of these. When you get the back off of the set, there are 3 small square brown fuses located at the back left corner of the set, if looking at it from the back. They are located next to the right side of the flyback transformer( the large gray or black thing sticking up with the thick red wire coming out of the top). One of those fuses will be open and needs to be replaced, and the pins on the flyback transformer need to be resoldered on the bottom of the board. They will come loose and make the fuse blow. This will fix the problem 95% of the time on this set.

Sep 02, 2010 | RCA HD52W59 HDTV Projection Television

1 Answer

Characters on picture look double and colors not lined up


HI, the convergence board or unit is failing at this point. you will need to replace the entire board in this case. most of the components are damaged.

The convergence board is the main regulator of the RGB stream. it also controls color focus as well. replace the convergence board asap.

Jul 22, 2009 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Picture is all distorted ,colors dont match up need 3d glasses to watch


HI, this is basic convergence failure. the convergence board controls the RGB stream and , if its malfunctioning or, the convergence chip set is damaged, it will distort the entire display and the colors will not be regulated correctly as you are experiencing at this time.

simply replacing the convergence board in this unit will fix your issue.

May 18, 2009 | RCA Televison & Video

1 Answer

Where to buy the convergence board of a 55PP9502


You can find a replacement auto convergence board for a model # 55PP9502 from this major Philips part distributor at the following link:

Philips 55PP9502 Replacement Part Auto Convergence Board

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1 Answer

Hitachi, model 57UWX20B ghosting?


The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.png http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 24, 2009 | Hitachi 53FDX01B 53" Rear Projection...

1 Answer

KP-65WV700 convergence problem


AD board is some thing else and in convergence problem only D board will be replaced.
being a TV Tech, I do repair D Board on component level.
If you need D Board part number, let me know.

Dec 08, 2008 | Televison & Video

4 Answers

Sudden discoloration, ghosting, bowed horizontal lines in top and bottom of picture


Everybody here seems to have basically the same problem so I will write a general fix for these Samsungs. First what you got is known as Convergence failure, A Ic or resistor, fuse or some other component has failed in the convergence circuit. So finding the service menu and trying to align the colors or spinning magnets on the CRT’s or a real bad idea of tipping a CRT or mirror would be the equitant of ripping the transmission out of your car because it had a flat tire. When the convergence fails no adjustment will bring it back, and if you do one of these stupid things then you have two problems. Now most of these Samsungs have an easily replicable board that all the convergence amplifiers are on. This can be found by removing the back and seeing if there is a board about 9 X 5 inches big and mounted to the CRT mounts, there will be 5 connector to this board. Now if your set does not have this board and instead has the two convergence Ic’s (these are about the size of a playing card and have the numbers STK392-040 on them) mount down on a board below and to the right ( this is known as the deflection board) this repair will not work for you. Instead you will need to component level repair the convergence circuit. But if you do have this separate convergence board the repair is fairly straight forward. Go to www.vancebaldwin.com or some other supplier and order BP95-00142E this is the convergence board. This board has been crossed several times through the years but this is the current version. Now once you get this board simply replace it making sure to get al the connector back in there original spot. The fire up the set and run Flash focus and for about 95% this will fix the set

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