Question about Samsung PS50A466 50 in. Plasma HDTV-Ready

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Y sus board for 50 inch samsung ps-50q91hd - Samsung PS50A466 50 in. Plasma HDTV-Ready

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Posted on Jan 02, 2017

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gopakumarg43
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SOURCE: Hi I would like some help on trouble shooting my Samsung plasma TV model: PS-50Q91HD. Problem is the TV turn on for less than a minute and then turn off with a click sound and turn on again.

Fault with the main power supply regulator section. Either it will be on a separate board, or on the part of its main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
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Posted on Jul 16, 2015

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Samsung 50 inch PLASMA TV PS-50Q91HD with no picture. TV turns on but no picture. Sound is fine.


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.....

Nov 16, 2016 | Samsung Televison & Video

1 Answer

Samsung HPT5054 no video only audio


On the board next to the y-sus - that is the board that the y-sus plugs into there is a blown cap- mostly the 680uf 25v 105c cap is the one that goes on that board - to identify the board number is LJ-921490A.

Sep 12, 2011 | Samsung HPT5054 50 in. HD-Ready Plasma...

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Samsung hps5053 sound but not picture 50 inch plasma has sound but no picture


I have the same model with the same problem. I resolved it by changing energy saving from Auto to Standard. There is another option for Super Saving which I did not try. You can find the option by holding the Exit button for 10 second and you should see the setup menu. Go find the setting and change it to Standard and see if that will solve your problem. I bought this 4 or 5 years ago and this is the first time I have this trouble. Good luck to you.

Feb 03, 2010 | Televison & Video

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Picture covered with big block of black - 3/4 of the screen ???


It sounds like your tv may require a plasma panel, but to be sure remove the back of the tv unit and check the y-sus printed circuit board as well as the z-sus printed circuit board, check that they are getting the correct voltage and that there are no blown compoments on the boards themselves. The boards names, z-sus and y-sus are written on the board as well as the voltages are listed down the side of where the plugs at the boards meet. Good Luck. Oh , and also, check with LG that it doesnt require a software upgrade.

Dec 02, 2009 | LG 42PX5D 42 in. Plasma HDTV

1 Answer

Black bars on top and bottom of screen when watching a dvd 50 inch plasma


The most likely thing i have found is to replace the Plasma panel , which is expensive, or u can try replacing the x-sus printed circuit board or the y-sus printed circuit board. Good Luck.

Nov 15, 2009 | Samsung HP-R5072 50 in. Plasma HDTV

1 Answer

Hello, i have a 50 inch philips flat tv model # 50pf7320a/35. why is the screen half black?


Unfortunately, i have found in my experience is when this problem occours you need to replace the plasma panel, which can be a costly thing to do and takes a little bit of planned time. Other than that you can try to replace the X-sus printed circuit board or the Y-sus printed circuit board. Those two boards control the screen circuitry, Good Luck.

Sep 26, 2009 | Philips 50PF7320A 50 in. Plasma HDTV

1 Answer

50 inch dell plasma tv has audio but no video


the problem was the y-sus board, i had a local tv repair shop diagnos that much for me. although, he couldn't fix it i did some research and found a company in california, itritek.com, who could. you send him the y-sus board and the two buffer boards and he not only repairs them but he upgrades them. apparently the y-sus board gets too much heat and eventually goes out, sometimes the buffer boards are affected too. itritek.com replaces the components on the y-sus board with better parts which are more heat resistent. i believe this will help you with your problem. let me know...good luck.

Jan 17, 2009 | Dell W5001C 50 in. Plasma HDTV

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