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Need logic contro; board, model no. 6870qch003a for plasma tv du-42px12x

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NEED logic control board, model 6870qch003a

Posted on Apr 28, 2010

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My Element Plasma TV now has a scrambled image on the left side of the TV. It was working fine one minute, now every channel, every input, everything on the screen has this digital fragment/scrambled thing...


Normally, these symptoms occour when the Y-sus or the X-sus printed circuit boards become faulty, but if the problem is occouring on every input as well, the problem is either a faulty plasma panel, the screen itself, the main printed circuit board or the logic prnted circuit board, or a combination of all three. Sorry to be the bearer of bad news. I hope this helps in some way. If the unit is under warranty return to the retailer for a new one, or if its only a short timeframe out of warranty, contact the manufacterer and the may offer the grace and supply parts and/or labour under warranty. Good Luck.

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I have a plasma tv that has two black lines about 50mm wide running vertically in the centre of the screen


Three kinds of detects count for this problem. It could be the Logic board, or the Logic Buffer board, or the PDP panel. Just drop your tv to the warranty depot shop to repair.


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Have lg du-42py10x plasma powers up but no picture no sound dark screen with white dots


if you have checked the activity of the outlet and the status of the TV (turned on or off) you may want to get it check through an LG authorized repair center, the issue could be the switchboard that channels the video and audio.

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I was just wondering if I could make my LG remote, 6710V00116F, into a universal remote?


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My lg plasma du-42px12x works only when tilted at a low angle when upright all i get is a dark screen with some flickers of snow. it may come in and out in this position but never for long


Inside on one of the boards or with one of the cable harnesses there is an intermittent connection, or there is a cold solder connection. The defect may be effecting the tuner or the IF section from your description. There is also the possibility of having digital noise from the defect.
You should take your set to a service center that is able to service the type of set you have.
This type of fault could be very time consuming to find. The cost of servicing it could be a bit expensive.

Jerry G.

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Have your system control Board replaced.. Also you might want to replace the Digital logic also, but the system analog board is your problem

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Many problems with Hitachi Plasmas can all be traced to a defective Y board. this would be the board on the left on most models. you can simply check the fuses on this board and if they are bad simply replacing the fuse will not fix this you will most likly have to replace the board

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dont waiste your money problem main or logic board or if shure power supply go radio shack and get one with specifications match voltage,ampers,and polarity

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Centrex plasma tv model ctpl42s5 same problem wont turn on have extended warranty, what can we do.

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