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

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  • plasma1 Aug 11, 2008

    lg du-42py10x plasma no picture,dark screen,whitedots,no sound,menu does't come up

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5 Answers

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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.

Posted on Aug 10, 2008

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It is caused by failure of the YSUS board. Now this board is not availableby itself as LG have released a repair kit for this series of plasma whichcontains the YSUS, ZSUS and CONTROL boards. It is safer to replace all 3 boardsas sometimes the other 2 boards are damaged when the YSUS fails.
These kits are available from Statewide Appliances PH: 1800 005 220
Part Number is: 6871VSNB03
Just click below for electronics store online;


Partstore.com.

Vance Baldwin Electronics


http://servicemanuals.vstore.ca/


http://www.electronix.com/catalog/




Regards,
VOTIT

Posted on Aug 11, 2008

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You can try a hard reset: Unplug TV from AC mains and remove all cables from TV. Wait about 30 minutes and replug to AC power and redo the cabling. Switch on the TV and see if it works..

OR If you would like to attempt a DIY, you will need a service manual to guide you. You can find one here:http://servicemanuals.vstore.ca/

Good luck...

Posted on Aug 11, 2008

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Circuit board problem take it to a technician....

Posted on Aug 10, 2008

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Hm can it be something with the resolution. can you access the menu?. think your tv is broken.

Posted on Aug 10, 2008

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Posted on Jan 02, 2017

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2 Answers

My LG Plasma television DU-42PX12XC had a loud pop


Your tv contains protection circuitry that would shut down the tv if the ymain was out. If the ymain had blown, you'd have no sound and just a flashing standby light. My gut tells me you need to replace the Power Supply Board (PSB). I've seen this before and after spending too much money trying to diagnose a ymain failure, I was surprised to learn that when you have sound but no picture, the psb is a gonner. Try ebay, shopjimmy.com or discount-merchant.com for a replacement.
Good Luck!

Apr 20, 2010 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

While checking Vscan voltages on my LG du-42px12x picture died.


I have the same problem the pic went out but have sound. where do i go to get the Yboard? do i need a special number off of it or something? I took it to repair shop and he said it would be like 500 dollarss to repair. but i see all kind of yboards on ebay for like 150?? how do I know what one to buy?

Mar 15, 2010 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

Red dots all over screen poor picture more when


This is a "mal-discharge" fault & will need either an adjustment on the Y-Sustain board or a software update to the control board. Contact your LG dealer to arrange someone to sort this out for you.

Oct 26, 2009 | LG 42PC3D 42 in. Plasma Television

2 Answers

The picture is gone, black screen only


have a du42py10x and i have no pic or sound take the back of and only 2 littel ligh on bottom com on

May 30, 2009 | LG DU-42PY10 42 in. Plasma HDTV

1 Answer

Screen is out on a LG 42" DU-42PY10X plasma hdtv


I think I can solve this. Am going to buy parts and see.

Feb 11, 2009 | Maxent MX-42HPM20 42 in. Plasma HDTV

1 Answer

Issue with LG Plasma tv model # DU-42PX12X


Another "same probelm"

My set has encountered this magical 50/50 split screen and it seems to be quite a problem since I am not the only one researching this issue. LG was of no use because of course it is just out of warranty. Any solutions on fixing this or am I out of money in buying a new plasma?

Jan 27, 2009 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

LG DU-42PX12X Plasma, picture startes flashing then goes black after a few minutes


You need to get this tv service asap.i beleive that the problem is in the inverter board or yb board.


good luck

caypianan@yahoo.com

Oct 25, 2008 | LG 42PX5D 42 in. Plasma HDTV

2 Answers

DU-42PY10X Has sound but no picture.


When a plasma has no picture I have found that 9 times out of 10 the ysus bd or the zsus bd has failed and sometimes both have failed at the same time. When you pull the back of the unit, you will find the the large pcb on the left as you look at the back is the ysus bd. and the bd. on the right side of unit is the zsus (it is about 1/2 size of the ysus bd. Check the fuses on both bds. and if one is open see if replacing will help. If it blows again the bd. that the fuse is on is most likely defective. The VS and VA voltages are listed on a tag on the inside of the plasma panel and those voltages should be checked. If either of those voltages is very low or missing, first disconnect the plug from the power supply to the ysus bd and check the voltages again. If the voltage comes up then the ysus is defective. If the v does not come up replace that plug and pull the plug from the power supply to the zsus bd and check again. If the v then comes up the zsus is most likely the cause. Remember to disconnect the AC to the unit b4 each step. Of course there are other possibilities and I alway reccomend that if your are not proficient with handling meters and AC and DC voltages then please contact a qualified service tech.

Feb 02, 2008 | LG DU-42PY10 42 in. Plasma HDTV

3 Answers

Red/pink shades in dark areas happens only 6ins down from top


Sounds like you have a cap that leaky or a ic thats getting hot,
if you want to try and fix it yourself get a can of freeze it
http://www.chemtronics.com/products/product.asp?id=78

and when the problem appears spray the can on each (ic or cap) part till the problem goes away.

Dec 03, 2007 | LG DU-42PY10 42 in. Plasma HDTV

1 Answer

White speckly 'snow' on screen


y sustain board needs adjusting or replacing

Oct 10, 2007 | LG DU-42PX12XC 42 in. Plasma HDTV

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