Question about LG RU-42PX10 42 in. HD-Ready Plasma Television
Hi , was watching my 42 inch LG Plasma TV last night, when I heard a click noise and the picture went immediately but the sound remained fine, I could switch channels but no picture, would you have any idea what the problem is. thanks
42 inch LG Plasma TV - Lost picture but sound still can be heard! .
the sound is fine on my plasma TV however when i turn it on all I get is a really dark screen and dark shadows.
Our LG 50" plasma tv screen went black after a popping noise but still had sound, after great diliberations decided to take the back off and have a peek!
We unplugged the tv and tested the fuses (there were three we could see) one had blown, the one on the left as you look at the back of the tv it also has one above it. We wrote the code/seriel number down and took the fuse to the electrical wholesalers Maplin and bought a pack of 10 fuses for £1.29 replaced the fuse in the tv and everything now fine!!!!!!
Hope this might be of use to anyone whose lost the picture after a loud popping/snacking noise but still has sound.
Posted on Jan 17, 2008
I have a 42" plasma. Unlike the issues on the top of this page, I did not hear any pop but the picture went out and the sound is still OK. I did have a red line going from top to bottom on the right side of the screen. My sons-in-law came to take the TV off the wall for me and as they touched the wires the TV came back but then black again. It seems to go in and out. Could this be a wire. We cannot figure which wire it could be. CAN YOU HELP US??
Posted on Jun 29, 2009
What if the sound are picture does't work but the on light will come on. and the T V sounds like its on, but no picture and no sound on my 42" LG Plasma
Posted on Sep 05, 2009
Call 877-543-8325 this is an LG Executive call center and they will fix this for free. I have a 50" plasma I bought january 2006 which is out of warranty by 5 months. They faxed me and the LG repair shop a 30 day warranty for my tv to cover the repair. Just tell them you heard a pop and in my case the picture is distorted. All they need is the model number and serial number and they should take care of it. No arguing needed.
Posted on Jun 03, 2008
Hear a pop, no picture and sound is OK => Y Sustainer problem. However, normally they have to change both Y Sus and Z Sus boards at the same time. If you lucky than it's just a fuse on the Y sustainer blown (the chance is very rare) otherwise the IPM (Intelligence Power Module) on the Y/X sustainer board is short. This is a common problem and costly repair for Plasma TV.
Posted on Apr 06, 2008
Lg Tv-Plasma from 42inch to 55,the poping sound and specially coming on then go off,or just sound and no image after turning on,the problem in very easy to Fix,some other people don`t want to let you know how is done couse all they want is money after we pay a fortune on it....solution?,is all in the main board,i don`t have a schematic but i`ll try to explain at my best,i had 2 of them,they were doing same thing,are 6 years old...solution: on the main board,(connects remote control to tv,gives the signal to turn on the tv),there is 1-2 capacitors that you will see they are black,but a little squeezed at the middle(if an electrician opens it is very obvious),when turned on,there capacitors makes a loud buzzing noise and get very HOT,that`s why the popping sound and black screen,comes on...and turn`s itself off,those 2 needs to be changed,to a higher Voltage,after this is done,you will see your tv back to Life again.
The capacitors can be of different types but the shape is the same,depends of Lg-Tv-Plasmas,42-55inch.
Posted on Jan 08, 2012
I have a 42" LG plasma and the picture is very dark but i can still hear it fine
Posted on Oct 25, 2010
"DON'T BUY LG PRODUCT THATS THE SOLUTION"
MADE IN CHINA COMPONENTS AND ASSEMBLY GARBAGE!!!
Posted on Jul 25, 2009
I called LG's # 877-543-8325 with the same problem. They were wonderful!!!! Fixed it right away. Very expensive if you fix it on your own, had to replace the whole board. Believe me!!!! call, they will help you.
Posted on Oct 22, 2008
I have an LG Plasma 42" from John Lewis they took me through many tasks to try to recover the picture the last suggestion was to pull out the mains lead while the set is on wait half an hour, put lead back in check Input is on Antenna Mode then retune, I did this and the picture is back !!!!!!! try it it might work for you. Good Luck.
Posted on Feb 22, 2010
I'd say: Never buy anything from LG. I've had very nice bluray players, ministereos etc. and they all break up after year or two. The final disappointment was the 42 plasma... worked fine 4 years. Then the power unit broke down and after that (1 month) there was no picture anymore... FCK the LG.
Posted on Jan 14, 2010
Sounds like that customer service number can be helpful, however they couldn't help me because the TV was purchased in the UK, and the unit is not sold in the USA, therefore the customer service couldn't fix it on the UK warranty.
I read some other blogs though and decided to be adventurous. According to all the blogs, you need to replace the YSUS (Y-sustainer, ZSUS (Z-sustainer), AND Control boards. These boards I needed for my TV were more accessible in the UK than in the US, but I was able to find them here http://www.electronica-usa.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=EU&Product_Code=6871VSNB03E&Category_Code=PLA
The boards cost $242 at that site, which was the cheapest I could find them anywhere in the US. The parts came and I swapped them into the TV in place of the old circuit boards. Voila! my tv works again! IT WORKS!
Specs about my TV:
CTRL 6871QCH053G ZSUS 6871QZH041B YSUS 6871QYH036D
the last letter of the part number does not indicate a different part, only minor differences and upgrades, but the part will work in place of an older part with a different number on the end.
Posted on Aug 29, 2009
Lg sucks, same problem 6 months out of warranty and no help. I have an old tv that I had for 8 years and the picture is pefect and I paid thousands for this piece of **** to only last 2-3 years. WOW! for all of those who say that LG customer service was great, lucky you. As you see those were the ones who were successful with getting help, and still within warranty. I would like to see those same people two years from now when something else goes wrong with the piece of junk, and they are out of warranty and LG does them the same way that they have everyone else..kicked to the curb. Its obvious that there is a probelm with the TV that is a known issue, any other reptible company would have a recall or something to offer their customers because its a known issue.
Posted on Feb 02, 2010
I called the LG Customer service number and was hopeful after all of these positive comments. They were very rude and unhelpful and stated they could do nothing for me. Our warranty just ended 2 months ago and they could do nothing! Why is it that a TV only lasts 4 years these days???? That's very poor craftmanship on LG's part. We will NEVER be buying LG anything again!!!!!
Posted on Jan 12, 2011
Hi all.My mates LG 37LF66 37inch LCD TV recently lost the picture (black screen) but still has sound.It was bought from Richer Sounds nearly 2 years ago.Luckily he bought the 5 year insurance (tv cost £600 at the time and insurance was amazing at £60 for 5 years).The Tech guy came round 4 days after phoning Richer Sounds and identified the "Inverter" for the backlights as the problem and will come back after ordering the part (whole circuit board change needed as easier) and fix in the home.I googled LG37LF66 Inverter and they go for £30 on Ebay.Inverter part number was 6632L-0480A LC370WU3 and you can buy them new also for aprox £60 from other sites.
Hope you all find this information usefull especially those who have void warranty's.
Posted on Feb 18, 2010
I have the same 50" LG TV and the picture went out just under 2 years old. Contacted LG and they refused to participate at all. It does not appear they are as good or back up their products as they advertise. Even the repair man said ther were a lot of these tvs going out he had looked at three the day he came to check mine. I paid a lot of money for this TV and have learned a real lesson. I will never buy another LG product and highly suggest no one else does. Maybe then they will start be a reputable company that admits when they put out a bad product. Anyone know fo any class action suits pretaining to this TV?!?
Posted on Jan 13, 2010
Just give the service centre a call - my tv did the exact same thing. It needs a software update. LG were so helpful and will have it fixed for me within three days!
Posted on Nov 22, 2008
My 42 inch plasma just went south with a loud popping noise too. The number to Assurance (covering the Circuit City extended warranty) is 800.268.0470.
The warranty is still valid and Assurance will handle the claim.
Posted on May 26, 2009
I have the same TV that I bought 2 .5 years ago. Pop, Pop, and then black. Sound but no picture. We will see what the rep says tomorrow. Has anyone had any success getting them to step up and fix it?
Posted on Nov 02, 2008
Same problem here. 50" LG out of warranty for 4 months. This is a major problem with these TVs, obviously. Customer service has been absolutely terrific. Once the repair company comes out I will post my final results for others. Thanks to the people who posted the executive customer service number. They were extremely nice and receptive. I'll repost final results.
Posted on Oct 22, 2008
I have the same issue on my LG 42" plasma, purchased 12/2006, produced 6/2006. I just called the cust. svc. # listed in the owner's manual and they readily agreed to cover parts. My warranty expired 6 months ago. Appreciate their willingness to cover the cost of parts, but it is still frustrating that it will cost us anything to continue to use our 2 1/2 year old TV. Anyway, calling cust. svc. is worth a try.
Posted on May 08, 2009
I have a lg tv model DU-42PX12X.A5 and the sound is good but the picture it has no image maybe i think is reparable but idont now what is damage please some body can help me
Posted on Dec 26, 2012
Hey people i bought a 37 inch lg tv between 2 to three years ago when they were almost twice as much as they are today. along with a 1000 watt dvd combo both pieces of garbage went with in the first year and were fixed under warranty not quite in to the third year and the picture on the piece of garbage tv is gone again lg is nothing but garbage dont ever buy there garbage ,junk fck LG.
Posted on Nov 04, 2011
We have a 50" LG plasma and I had some vertical lines coming from the top of the screen down about 1/3 of the way. Apparently they don't have the parts to fix it anymore so LG is sending me a new TV! I have had this one for almost 2 years now. Their customer service department is great, very nice and easy to deal with.
Posted on Sep 15, 2009
This happend to mine too.Its not a big problem just turn all the tv plugs for about 2,3 days
Posted on Oct 04, 2009
Your power board is bad if the fuses are blown.
Posted on Sep 03, 2015
I had this problem before on my LG TV. My solution is to put a 12V fan on the tuner board processor. The problem is caused by the TV overheating and the tuner CPU cuts out because it is hot and instructs the power board to shut the tuner board off (although the rest of the TV stays on). You cannot likely get a TV repair man to fix this because the LG TV's do not have adequate heat control other than vent holes on the bottom and top. This is a design flaw that started a class-action lawsuit against LG.
Posted on Dec 12, 2014
Posted on Sep 17, 2014
My magnavox 42inc plasma will show picture for about 30 min then the screen goes blank if i cut the tv off and back on the picture stays on for 15 minutes more .
Posted on Jul 17, 2011
The tech is here right now from LG.......this is not a quick or easy fix.....after waiting 2 weeks and 2 missed appt, it is finally getting repaired.....costly and slow!!!
Posted on Nov 08, 2008
I had the same problem. Called the number the poster above listed (877-543-8325). I was nice, and just explained that I was frustrated with the fact that it broke just after the warranty expired (4 months). They had me fax the receipt in and said they would extend the warranty for both parts and labor.
Thanks so much for posting this information!
Posted on Oct 14, 2008
Try connecting tv to cable direct also try unplugging both converter and tv for wile like 5 mins plug both back in see if tv and converter sync
Posted on Mar 09, 2008
Most likely what happened is one of the capacitors went bad. When a capacitors goes bad it produces a popping sound. This could be an easy and cheap fix if you find the bad capacitor or capacitors. The bad capacitor will have a bulging top most likely on the power board but could be anywhere.
Posted on Jul 07, 2009
This is almost certainly the device that sends electricity to the the plasma in the panel after failing. Bring to your local repair shop and expect to pay 300-400 parts and 100-200 labour.
Posted on Apr 28, 2009
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