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

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  • 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

Tv turns on. There is a picture but it looks like your looking through a fish bowl. Bowes into the middle from both sides. It also looks 3D. Any Clue??


This is usually a convergence problem, although the bowing normally is from the top and bottom rather than from the sides. There may also be an issue with the pioncushion circuit that causes the bowing. Try the automatic convergence adjustment first. If that fails to resolve the problem, then resoldering the convergence ICs would be next followed by replacing the ICs should the resoldering fail.

If you wish to attempt the repair, please update this and confirm the model number to be VS-60607 and I'll provide additional details.

Thanks,
Dan

Dec 08, 2009 | Mitsubishi VS-60607 TV

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

I have a JVC 48' widescreen tv approx. 7 - 8 yrs old. the picture is now extremely bad all of the colors seem to be out of wack and the picture bows inward toward the middle at the top and bows inward...


There's a miror or one like this might have a ''aluminium sheet'' miror.
Open the upper back cover to see what going on there, pretty sure something run out of place...

Sep 08, 2009 | Televison & Video

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

Slight bowing of picture


Only on newer TV's, yours (I dont think)has the adjustment, if it does it would be in the menu area.

Apr 22, 2008 | Sony KV-36XBR450 36" TV

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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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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