Question about Samsung PCN5425R 54" Rear Projection Television

1 Answer

Convergence I think?

My TV is bowed in the middle and when I try to run the auto adjust it stops as some have said at 4% also. I am trying to find a part number for the convergence board or the parts needed to fix this. Do you have a part number or a link where I could find it?

Thanks for your help in advance.

Gaylen

Posted by on

  • kngjr30 Jun 24, 2008

    Thanks, I have ordered the part. Once I install this I noticed there is the convergence setup to run is that the only thing needed to complete this?



    It will be nice to get this TV working again for less then a $100.



    Thanks

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  • Samsung Master
  • 8,617 Answers

Yes its the convergence amp board. In fact the following site has the convergence amp board for your model on sale foe 75.00 the entire Circuit board. heres the link its under the samsung parts catagory its the one that sells for 75.00 is the one you need. here's the link http://servicemanuals.vstore.ca/

Posted on Jun 24, 2008

  • Sonny Berry
    Sonny Berry Jun 24, 2008

    yes just a regular convergence adjustment and you should be good.

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1 Answer

My 57hx81 has a slight concave bow in the middle top to bottom


Sounds like a problem in the vertical sweep circuit. Check voltages to your convergence ICs. If they are  not to spec then look for bad fuses and capacitors on the power board. These will throw off the DC voltage to the convergence chips causing the bow effect. I've had a single bad pico fuse ($1) cause this symptom. 

Dec 06, 2009 | Toshiba 57HX81 57" Rear Projection...

1 Answer

One color Bow-tie Effect.


SAMSUNG Convergence Problem


It looks like blue convergence. Look at menu, select convergence and see if blue top is bent down on convergence adjust screen. Probably won’t adjust.

Some Samsungs have convergence IC’s on a separate convergence board in the back of the TV. Others have the IC’s mounted on the main deflection board. Either way the board has to be removed to get at the dud IC’s and associated burnt resistors.

You remove the appropriate board, determine if any resistors are burnt or damaged, replace any burnt or out of tolerance resistors, replace 1 or 2 IC's and re-install the board.

Now you have to adjust it to look like new.

If the unit has not been misadjusted and everything is OK now, running the auto focus may put the picture back to it’s previous stunning quality as it was before IC failed.

If after Perfect Focus it is still misadjusted noticeably, try the customer convergence adjustments. Operators’ manuals are available on web through searching.

If convergence can not be adjusted properly, you messed up chip install or resistors may be wrong value or open; or it needs major adjustment.

If you live around Calgary, Alberta try me instead:

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


Or try to the find the repairperson part of this website (on the Homepage) and search postal code. Maybe you will be lucky and someone from your area is listed for Projection TV repair.

Most rookies doing this job will cause damage and not be successful. They will pay double for someone to fix their mess or end up scrapping the TV. It is not a simple task. It is more difficult than batteries on a remote.

Good Luck

easyab

Jun 05, 2008 | Samsung HCN4226W 42" Rear Projection...

1 Answer

RCA D52W20 52" TV AUTO CONVERGENCE WON'T COMPLETE


Sounds like your convergence chip has gone bad. Usually costs about $300-$400 to fix. I would call a local TV repair shop and let them give you a free estimate.

Jan 29, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Red Convergence on JVC AV- 65WP74


convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
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/

Jan 28, 2008 | JVC AV-65WP74 Rear Projection Television

1 Answer

Covergence and Bowed Picture Problem


can you adjust any color of convergence in user menu blue, or red up or down left or right. if you can make any up or down left or right adjustments on any color then the likelihood it wont be a convergence ic. it would be a output resistor. so see if you can get any movement. with it being bowed i was suspect an convergence ic.

Jan 08, 2008 | RCA P60920BL 60" Rear Projection...

1 Answer

Hitachi 61SDX01B picture...


Sounds like the blue convergence circuit still not working.

Assuming both IC's are good, look for open soldered-in pico fuse.

Once bowing problem is solved,then convergence should adjust ok.     

Jul 27, 2007 | Hitachi 61SDX01B 61" Rear Projection...

1 Answer

Picture Bowed


Try replacing the convergence IC's w/Panasonic STK392-040 for durability,then perform servicer mode convergence alignment procedure.Last,check customer adjust conv. alignment.

Apr 15, 2007 | Samsung HCN5527W 55" Rear Projection...

2 Answers

Panasonic PT 47WX51 TV troubleshooting


Your TV most likely has a Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
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f0900cb.jpg

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

Mar 25, 2006 | Panasonic PT-47WX51 47" Rear Projection...

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