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ILO pdp 4210ea1 is working exept that the image is dark and fuzyy sound work .The voltages look in range ,i dont check for ripple .look like something along video signal or britness control.where to start eny sugestion appreciate .

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  • LG Master
  • 749 Answers

What you most likely need is to service or replace the ZSUS board 6870QZE017D. There's a good chance the fuse on it will be open - check it if you can.

Replacing the fuse likely won't help - it'll either blow again or will make the TV shut down.
Feel free to send the board for repair or buy a new one.

www.coppelltvrepair.com

Posted on May 22, 2011

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Posted on Jan 02, 2017

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Sound isn't working on my pioneer 5071 pdp


Does the set have sound with a DVD etc. directly connected to one of the audio/video inputs this set has?

Apr 30, 2012 | Pioneer PDP-5071HD 50 in. Plasma HDTV

Tip

A) basically it has to be acted upon by a supply voltage of at least 95V to...


a) basically it has to be acted upon by a supply voltage of at least 95V

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sample picture

f3f741f.jpg







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b3363d6.jpg


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1 Answer

Picture has suddenly become dark and greenish Tried to fix with brightness, color controls...can change to dark and reddish...but thats it. is either PDP 4214HD or PDP 42A3HD


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First check this points:
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2. How many times you have change your lamp.
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If you are having problems whit the brightness of your TV or you are seeing a dimmer picture, you might have to change your lamp or your ballast, if it comes to a point where you do not see any image at all but you still hear a sound, then its definitely the lamp, if you dont see image or hear any sound, you might have problems with your ballast, also when your ballast begins to run out the picture can get dimmer due to it sending less amount of voltage to the lamp, i suggest to check with a tech to confirm it, or get a second opinion. Hope i could be of assistance.

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This sounds like low screen voltage(A1)try adjusting the a1 voltage bottom control on flyback transformer if you have a voltmeter, voltage on crt base possible market screen or A1 shoud be beteen 350/500 volts when making adjustment remember to take into account current taken by meter If voaltage will not adjust flyback transformer will have to replaced

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Hi washingtonrm, 
I am happy to help, we need to check the backlight inverter.
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  2. Take a flashlight and shine it on the screen.
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If you see an image you have a bad inverter, you should be able to replace it yourself. I can walk you through in chat. Let me know your findings. Lone99star 
 

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Need help


Hello koty,

 

That sounds like you may have a problem with a bad solder joint on one of your switching transformer connections. If you have a soldering iron and some solder, you should resolder the transformer connections. Also check the whole board for bad solder joints. If this does not work there might be a chance that one of your capacitors has gone bad due to aging. You will need an oscilloscope and a schematic to measure the voltages on the capacitors to make sure that they are within the recommended ripple voltage range (open capacitors loose their ability to filter so the ripple voltage increases and this causes instability in the DC voltage level). However the fact that when you apply mechanical pressure the problem abates, this is pointing towards a bad solder connection.

 

I hope this helps,

Thank You,

Shuttle83

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