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64" Plasma Samsung tv turn on fine after 30 min screen get black and can hear sound. WHat part can be defective? Power supply board, main board, T-Con board or Y-main board?

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  • Samsung Master
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High voltage power board

Posted on Nov 23, 2019

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6 Suggested Answers

6ya6ya

6ya staff

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SOURCE:

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Posted on Jan 02, 2017

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VOTIT

LORETO LACARON

  • 2071 Answers

SOURCE: toshiba 42hp82 plasma picture problem

Resetting the TV

Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can saved time.
1. Unplug the TV power cord from the power outlet for 3 - 4 hours.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.

hope this may help;

Regards,
VOTIT

Posted on Sep 13, 2008

Anonymous

  • 124 Answers

SOURCE: Samsung plasma all black screen

Black Screen come from three areas. 1- Power Supply Board 2- Inverter Board 3- Processing Board on the LCD. Since the Power Supply Board was replace, it easy to troubleshoot where the problem. lies If you cannot get the backlight, then its the inverter board. If you can use a flash light on the TV screen and can barely see the images, then the problem is indeed the inverter board. If you cannot see any images when using a flash light, then the problem comes from the LCD processing board. Let me know if you have any success. Mike

Posted on Feb 21, 2009

Anonymous

  • 100 Answers

SOURCE: Hitachi 55hds69 plasma television. TV is 15 months

I will try replacing both y and z sus boards very common but also very expensive so prob keep checking on ebay.Also check the buffer boards

Posted on Jan 06, 2010

budmrtn

Bud Martin

  • 11361 Answers

SOURCE: my samsung plasma becames black with sound but no

Black screen on the PLasma TV can be caused by failed sustain boards and or power supply. I would inspect the caps on the sustain boards and the power supply boards first.
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com

Posted on Dec 09, 2010

SOURCE: will a power supply for a 50" plasma TV work with a 42" plasma TV?

sir it will work with your TV..

Posted on Mar 30, 2012

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No screen boards found. Do you mean any of these?
Types of TV Boards Every TV uses a collection of various boards to perform every function imaginable in a television. The boards work together to produce sound and images on a television screen. When certain mechanisms in a TV fail, it might be time to start testing different boards to see if they are functioning properly.

Main Board

The main board is the central hub of a television circuit system. The easiest way to identify a main board is to find the board with the various video and audio inputs/outputs. Generally speaking, main boards also contain a tuner, HDMI, USB, and S-video port. Main boards are one of the largest boards in a television. Main boards might also be referred to as a motherboard, main module, or an A/V board.

Power Supply Board

Another large and important board inside a television is the power supply board.. Usually found in the center of the TV, the power supply board has several connectors that supply power to the other circuit boards. It can contain transformers, large capacitors, and integrated circuits. There is usually a table on the power supply board indicating the different voltages it produces in addition to the signal names.

Inverter Board

Found on LCD TVs, inverter boards are used to mount the LCD backlight. These are smaller boards, usually shaped like long thin rods. If an LCD TV's screen is dark, distorted, or difficult to see, it can be the result of a defective inverter board. Inverter boards fail when inadequate power is not allowing current to pass through the backlight bulb.

Timing Control Board / Logic Board

The timing control board, known as the T - CON board,, is typically only found on LCD and LED TVs. Plasma TVS, on the other hand, use a logic board.. The functions of the logic and T-CON board are similar, as each functions to digitize the information it receives from the TV's processor. This allows the screen to display images on the pixel level. When the T-CON or logic board fails, the screen images may become distorted, leading to pixelation and the appearance of lines on a television. On a logic board, there are slotted connectors on all four sides, while T-CON boards have connectors on just two sides.

X-Sustain and Y-Sustain Boards

Also known as the X-SUS and the Y-SUS, the x-sustain and y-sustain boards only appear in plasma screen TVs. The x - sustain board might also be called the Z-SUS. These boards function similarly, producing proper screen images. Although they serve pretty much the same function, the two boards work independently of each other. The x-sustain board activates all the display lines at once, while the y - sustain boardaddresses all the individual lines of display. When one board breaks down, it probably will not affect the functionality of the other. However, it might be a good idea to have both replaced because X-SUS and Y-SUS boards have a relatively short life span anyway. A failure of one could mean an impending failure of the other.

Buffer Boards

B uffer boards are also only found in plasma screen TVs. Connected to the y-sustain board, a buffer board works to turn output to the plasma display. Common defects of buffer boards include the burning and shorting of power lines.
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My Samsung tv turns on but has no sound or picture ... how do i fix that


Some Samsung tv's have a common fault of capacitors breaking down.
Especially the 32" flat screen model.
If you are not happy changing components your self send for an expert.
However, you may look up Samsung TV repairs on Youtube, there are several step by step tutorials there.

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I'm having a hard time finding any parts for the set besides the power supply board. The T-Con is usually located top center on the back of the LCD panel. It will be under a metal cover. Sometimes, the t-con circuitry is built onto the main board. If this is the case with yours, you will have to order the main board. Feel free to send me a pic of the back of your set.

info@back2lifeelectronics.com

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1 Answer

My samsung plasma becames black with sound but no screen after 1 min after turned on. we turn off the tv and turn on again and do it again.


Black screen on the PLasma TV can be caused by failed sustain boards and or power supply. I would inspect the caps on the sustain boards and the power supply boards first.
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com

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Follow these steps to figure out what problem is.
When you turn on TV, look at the back and see if the back light on. If it is on, the power supply and inverter work fine. The suspection now is main board and T-con board (the small board on the middle-top of the panel)
To find the problem from the main board or not. Look at the power supply and measure Vs on - turn on the TV, this approx 5 vlt DC needs constant once you turn on the TV. If it is drop or unstable - main board problem - replace it.
If Vs on is good - disconnect the T-con cable from the power sup. If power sup stop clicking - T-con need replacing. Hope it help.

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