Question about Samsung PCJ522R 52" Rear Projection Television

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Trying to put a mother board together need help

The power supply connection on the board has more pins than what is on the power suppy connection how do I connect this?

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You need the correct board for your model Samsung has alot of replacement boards that are all simillar but you need the exact one for your model number TV

Posted on Jun 21, 2008

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Where is the power suppy board

Follow the money or in this case the power cord which goes to the power supply board---feel free to tell me if model here is correct and what problem is?

Apr 20, 2012 | Sony KDS-60A2000 60" HDTV

1 Answer


I would guess you do have audio. The solution is to pull the convergence,power supply board out. You must scrape all the varnish (brown film) off the board on the solder side. This varnish may conduct and create a high voltage shut down in your video. Then you must inspect the rest of the board for bad grounds. You will need to inspect any and all ICs mounted on heat sinks. The pins may have separated from a good connecting ground on the board. You must really, really look for cracked rings on transistors, diodes, capacitors and resistors etc. Resolder as necessary and do not short pins together with too much solder. Thanks for asking and show all hands of support!

Jun 30, 2011 | Hitachi 53FDX20B 53" Rear Projection...

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When first powered on the picture is very dark, returns to normal for 30-40 minutes and then has horizontal bars scrolling through the screen.

Your problem will be in the power supply of this TV. It will be the board that has the flyback transformer. You will have to pull this board out and find the vertical IC. I think it will be of the LA78XX series. You will have to resolder this IC, and don't exceed the solder. You do not want to weld the pins short. Next replace any and all capacitors near and next to this IC. Could be four caps you replace. As for the dark picture, you will have to inspect the rest of the power supply board for bad grounds (rings around the pins of capacitors, diodes, transistors, resistors and any other ICs mounted on heat sinks. Check your capacitors in the rest of the deflection area, and replace as necessary. Inspect those jumper jacks( that connect to the signal board), these will almost always need resoldering. Now the the other half of the the TV will have a signal board. The signal board will need the convergence IC resoldered. The IC will be of the STK-392-110 series. Solder these pins and do not short them with excess solder. This area will also, sometimes, provide the dim picture you describe. Inspect the board for any and all grounds. Be sure there are no rings around any component soldered here as well. And once again, inspect the jumper jacks (connects the two boards together) and resolder as necessary. Seems like a lot to do and there is. I hope this will help you with the start of repairs. Thanks for asking and show all hands of support!

Apr 18, 2011 | Mitsubishi VS-60609 60" Rear Projection...

1 Answer

I have a Wd-65737 mistubishi dlp and i have sound and no picture. It cuts off also after being on for about 3 minutes with no picture. I have tgried the reset option by holding down the power button and i...

By now this aging TV has many, many bad solder grounds. The first place to start, is to pull the convergence board out. You will see an STK-393-110 that has rings around the pins. This is bad grounding. Please resolder this, and do not use excess solder or you will short the pins together. Then you should inspect the board for any and all ICs attached to heat sinks and resolder the pins to the board. Look for bad grounds on power resistors, transistors, diodes and capacitors. Also resolder areas where the board meets the other board. These are jumper jack connections. These can be a problem, solder as necessary. The second board to inspect is the power supply. It is the one with the flyback transformer. The first thing to find is the vertical IC. This is usually the reason you have no video. Please resolder the pins of the vertical IC.Do not to use excess solder or you will short the IC. Resolder the flyback transformer,horizontal transformer,power resistors, capacitors, transistors attached to heat sinks etc. Resolder the jumper jack connections that connect the boards etc. I cannot say enough, you must really inspect to find these bad grounds.I do not believe you need to replace any parts now. Just resolder and reinstall. This will take great patience and skill. Thanks for asking and show a few hands of support!

Mar 19, 2011 | Mitsubishi WS-65807 65" Rear Projection...

2 Answers

I need a power supply board for this tv RCA does not sale this power supply board any more

wow, good luck with this one, many repair shops end up with these tv's and the owners don't want to bother with them when they find out how much it will cost to fix them. that being said, get on the phone and call a few and you may find just what you need, another alternative is of course the internet (try sears parts store), or Ebay, hope this helps. I like you fix old stuff and enjoy bringing things back to life. good luck

Mar 10, 2011 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

The TV was unpluged for one hour. Once pluge in the blinking green light started. Now it doesn't turn on.

For starters..Your convergence board is my first concern. If you can pull the board out, do so with great care. There are many, many bad grounds here by now. I can not say this enough. The convergence IC has been separated from the board. Examine the pins and resolder as necessary. Do not over solder, you do not want to solder the pins together or you will create a short. This goes for any IC with pins you resolder. Check the diode connections, resistor connections, jumper pin connections,connections where cables jump together between boards, capacitor grounds. If you can, check all electrolytic capacitors with an ESR meter, and replace capacitors as needed. Heat sinks will need resoldered tightly to the boards. Start with this and see what happens. There is much to do, with the one board. The next board will be the power supply, and you will have to repeat the effort just mentioned. But, try the first plan and see what happens.

Feb 18, 2011 | Mitsubishi WS-55819 55" Rear Projection...

1 Answer

I have the 50hm66 tv, replaced the main power supply board, and then the aux. power suppy board, still no lamp (lamp is good), 15 yellow blinks What you think ???

U hear alot of clickings,few mins tv is on?The board call the Ballast board is dead.This Ballast board help to ignite the projection lamp.

Aug 13, 2010 | Toshiba 50HM66 52" Television

1 Answer

Toshiba TZ50V51 powering down...flashing led

Resolder all pins of Z801 on power suppy board.

If that didn't fix it post back.

Jun 17, 2009 | Toshiba TZ50V51 50" Rear Projection...

1 Answer

Power problem

Dear tonyb73,
Try to check the relay in your power supply, it might have a loose solder or loose connection at the back of PC board. The sound that you hear when you plug is the relay itself. if your set newer , check for loose connections on pins and other connecting parts of relay. That is located in the power supply section. If nothing happened after resoldering, then replace the relay, probably the contact points is corroded or damaged.Hope this will help...pls. send feedback so we can work together.. Thank you....
Good Luck..


Apr 27, 2008 | JVC AV-48P575 48" Rear Projection...

1 Answer

Power supply

you are so lost... a short in anything after the power supply will shut down the horizontal driver signal. first check to see if horizontal output transitor is shorted. If not it should have about 110 volts dc on it. if not go back to Power suppy ...many things start here...check to see if you micros got power a 5v heatseeked regulater is common bad. also the startup circuits can be the power suppy. I look for a kit online for power supplies ...they give you about every that fails. or you can start buying bet it is take to a professonal for you my freind havent a clue. CrazyLarry

Jun 27, 2007 | Panasonic PT-47WX49 47" Rear Projection...

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