Question about Samsung PCJ522R 52" Rear Projection Television

1 Answer

Convergance PUT NEW STK392-010 IC ON WAS OK THEN CHANGED A RESISTOR AND PICTURE MESSED UP AND CAN NOT CONVERGE THE PICTURE. COULD THE IC,S SHORTED?

Posted by on

  • Ken Sep 27, 2008

    I did put two new ones on.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Samsung Master
  • 8,617 Answers

Did you replace both ICs? also samsungs will usually burn at least two of the 3.9 ohm resistors when a ic fails.

Posted on Sep 26, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The picture started getting a triple image (everything was outlined in blue and yellow). We had a board replaced by a tv repair service, over $300 and the tv was ok for about 80 hours. (warranty on new...


Ur tv convergence board that was replaced for ur tv.The 2 STK convergence ICS was old it is not new it is those 2 STK convergence ICS on the tv convegence board is dead again and some of the resistors on the board maybe shorted and dies also must replaced too.The tv convegence board was put on ur tv those parts on the convergence board are old components parts,ur must repair tv convergence board again to fixed this problems called convergence pictures problems.

Aug 22, 2011 | Mitsubishi VS-60609 60" Rear Projection...

1 Answer

TV had red and green ghosts of increasing severity. A new tv is not an option at this time. We replaced the convergence and all seemed to go well. However when turned on, no picture and the on/off light...


mjsmail411,

You didn't mention whether you replaced the convergence ICs or the digital convergence box. If the unit worked, with misconvergence, prior to doing the work you have one of three problems. 1) The part you purchased is bad (I have had two new convergence ICs turn out to be bad out of the box) or 2) you shorted some points which should not be shorted when changing the part(s) or 3) there is still a bad part in the circuit which hasn't been changed/found yet.

First look at the soldered connections of the repair with magnifier glasses and make absolutely sure that no connections are bridged. If you do not find any problems check all the resistors and diodes in the circuit to make sure that when the original part failed it did not also short a diode or resistor. This would not affect the circuit startup until the new part was put in.

In addition I have a tip at http://www.fixya.com/support/r4220499-change_projection_tv_convergence_ics which could be helpful.

Thanks for using FixYa and for the great rating.

hardrocko

Oct 13, 2010 | Hitachi Projection Televisions

1 Answer

Phillips 60in projection,rred/greenish 3d effect


the two resistors were likely burnt out with a convergence IC (chip). these are usually a stk392-120 on a philips, or simmilar. the alignments can be very tedious and difficult. what needs to be done is replace the ICs that control the colors that are mis-aligned. you might see that the green is square and straight, but the red or blue is off. in most cases, i would just change both convergence ICs plus the bad resistors. then go to your full re-alignment of convergence to fix the picture. hopefully the previous owner didn't mess anything up too much (if they changed anything on the CRTs ie yokes, lens focus, centering magnets it could counteract your electronic adjusments). before you put too much time into it, look to see that all 3 colors are atleast focused and it appears that the CRTs have been left untouched. once you get circuit repaired, you will probably want a service manual to help with alignment. this complexity may bring you to want to just pay for this repair, could run you anywhere from $200-400 depending on severity and local rates.

Dec 07, 2008 | Panasonic PT-51HX41 51" Rear Projection...

1 Answer

Convergence problem


did you replace the six convergence resistors with the ICs? as Hitachi recommends replacing the six resistors when the ICs are replaced as the old ICs can harm the resistors and they will need replacement.

Sep 27, 2008 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

Problem with Samsung TV


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 self or autofocus 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 06, 2008 | Samsung HCN4226W 42" 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...

2 Answers

Color convergence


find the change value capacitors and resistors in the convergence section!

Oct 08, 2007 | Toshiba TP50G60 50" Rear Projection...

4 Answers

Colors all messed up


The fact that you used the term "magic focus" tells me you have a Hitachi projection set. When the colors no longer line up on a Hitachi projection TV, it means that most likely one of the convergence output IC's has shorted out. Sometimes a shorted convergence output IC will burn up a low value resistor too. I have also seen a convergence IC crack loose from the board and burn up 3 low-value resistors. If your set is using the STK392-110 IC's, it is probably a good idea to go ahead and replace both IC's with the newer upgraded STK392-150 IC's. The output IC's should be resoldered / replaced and the circuits checked and realigned by a qualified tech familiar with Hitachi projection sets.

Sep 09, 2007 | Hitachi 61SWX10B 61" Rear Projection...

2 Answers

Convergence Problem inSamsung HC-P4752W 47" Rear Projection


One of the convergence output IC's has burned out and needs to be replaced. If the IC opens up inside then it stops working without blowing any fuses or resistors. The IC should be replaced and the set realigned by someone with experience in convergence circuits.

Jun 22, 2007 | Samsung HC-P4752W 47" Rear Projection...

Not finding what you are looking for?
Samsung PCJ522R 52" Rear Projection Television Logo

Related Topics:

98 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Projection Televisions Experts

The Wyzzyrd

Level 2 Expert

83 Answers

Donald Griswold
Donald Griswold

Level 1 Expert

8 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers

Are you a Samsung Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...