Question about Samsung PN42A450 Plasma TV

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Samsung will turn on it just clicks

I can un plug the logic board and hear chimes but no picture

Posted by john romero on

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Brock Evitts

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SOURCE: Samsung PN50C590G4F plasma TV turning on and then off with clicking sound after 6 seconds

Have you tried replacing the power cord or the voltage feed may be off replacing the whole cord should correct that

Posted on Jan 02, 2015

Testimonial: "If all the voltages are correct except the one on the VE, how can changing the power cord make a difference? The VA and VS on the power board are perfect."

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My samsung tv LNT4669FX/XAA screen is blank but the tv and backlight work. how do i fix the tv?


It sounds like the screen may have failed, that means a new TV will be needed.

Feb 24, 2017 | Samsung Televison & Video

1 Answer

I have a Samsung hcm4215w you can hear samsung turn on chime but no picture.Please any advice would be appreciated.


Ur video backlight board is dead,not get power to the board to get picture,must replaced the backlight video board.

Another prob.u could have.
U have tv show sound,but no picture?
Ur inverter board it dead.

Oct 24, 2009 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Samsung


have the power supply checked

Jun 16, 2008 | Samsung HCN4727W 47" Rear Projection...

3 Answers

Samsung HCN4727W


Convergence board shot. Cheap to fix yourself, board has two STK chips on it and is easy to get to.

May 16, 2008 | Samsung HCN4727W 47" Rear Projection...

2 Answers

It doesn't turn on!


If your Macintosh computer won't turn on, here's how to troubleshoot it. Please keep in mind that although your computer may display similar symptoms that prevent it from showing video, this article discusses what to do if the computer won't turn on, meaning that when you press the power button:
  • You don't hear a startup chime
  • You don't hear any fan or drive noise
  • The power button or power indicator doesn't light up at all
If your computer doesn't display any video, it may display one or more of these similar symptoms when you press the power button:
  • You may hear a startup chime
  • You may hear fan or drive noise
  • You may see the power button or power indicator light up
If any of these conditions occurs, see the Troubleshooting: My computer has no video article instead. If your computer won't turn on, try each of these steps:
  1. Make sure that the power cord is plugged into a working wall outlet, and that it's properly connected to the power adapter. (To check if the wall socket is working, plug in a lamp or other electrical device.)
  2. Make sure that the power adapter is properly connected to the power port on the back of the computer.
  3. Disconnect all accessories that are plugged into the computer, such as a printer, hub, or iPod.
  4. Reset the computer's PMU or PRAM.
    • For a portable (iBook or PowerBook), click here for instructions.
    • For a Mac mini, click here.
    • For an iMac, click here.
    • For a Power Mac, click here.
    • For a Mac Pro click here.
    • For a MacBook or MacBook Pro, click here.
    • For any other computer, click here for instructions on resetting the PRAM.
  5. Try plugging a different power cord into the computer (if you have a working one available). If the computer starts up, replace the old power cord. You can get a replacement cord for some models here.
  6. If the computer uses a power adapter, try connecting a different power adapter to the computer (if you have a working one available). If the computer starts up, replace the old power adapter. (Computers that use a power adapter include MacBook, MacBook Pro, iBooks, PowerBooks, Power Mac G4 Cube, and Mac mini.)
  7. If you tried all of the steps above and the computer still won't turn on, contact Apple technical support (1-800-APL-CARE in the U.S.) or take your computer to your local Apple Store or Apple Authorized Service Provider (AASP) for diagnosis.

Feb 22, 2008 | M-Audio US85100 Keyboard

2 Answers

No Picture


see if STK392-110 or similar are good. 2 big chip with cooler

Jan 11, 2008 | Samsung HCN4727W 47" Rear Projection...

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