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Need voltage settings for my lg 50' plasma tv model # LG pdp50g20001

Sound but no picture

5 Related Answers

Anonymous

  • 92 Answers
  • Posted on Oct 31, 2007

SOURCE: 42 inch LG Plasma TV - Lost picture

sounds like it may be a software upgrade

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Anonymous

  • 15 Answers
  • Posted on Dec 15, 2007

SOURCE: 42 inch LG Plasma TV - Lost picture

ysus pcb that supplies voltage to the panel is faulty

Anonymous

  • 3 Answers
  • Posted on Jan 17, 2008

SOURCE: 42 inch LG Plasma TV - Lost picture

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.

Anonymous

  • 1 Answer
  • Posted on Sep 30, 2008

SOURCE: Sound but no image on my LG Plasma TV

Have sound but no imagen

Anonymous

  • 1 Answer
  • Posted on Apr 30, 2009

SOURCE: LG 50PX4DR plasma tv

I had the same exact problem as posted above. My 50" LG plasma was out of warranty for 1 year! I called the LG executive call center, and they were very helpful. They offered to pay for the parts and labor. They recommended a few local repair shops, and they set everything up for me. The tech came out within 4 days with one part. The tech had to come out one more time the following week, since more parts were needed for the repair. The Y sustain board, along with 2 adjacent parts that are required to be replaced as a set, and the power supply had to be replaced (parts alone cost just over $900). TV is like new again; I'm very happy with how LG handled it, and made what could have been a bad experience a good one.

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No picture, no sound

Diagnose the Problem

The first step in diagnosis is to check the display for any cracks on the screen. If the screen appears cracked, then the repairs may require plasma screen replacement. A cracked screen means that the gases inside have probably escaped. There is no way to refill the gases and the whole display will have to be changed. In this case, an authorized service may be able to provide more details. If the problem persists, then a gas leak is perhaps not the cause of a loss in display. Lamp burnout could be one reason behind a blank screen.

Check the Fuse

Most of the time, the plasma TV fuse is at fault for no picture on an LG Plasma screen. In such a case, changing the fuse should make an LG Plasma TV functional.
  1. Unplug the TV and wait for 10 minutes for the capacitors to discharge.
  2. Take a Digital Multimeter and set it to the 0-200 ohm range.
  3. Touch the red and black probes to each other and check the readings. The multimeter reading should be in the range of 0-2 ohms.
  4. Now touch the red and black probes to each end of the fuse. If the multi-meter reads '1' or 'OL', then the fuse has blown and needs replacement. If the multi-meter shows the same reading as before, the problem lies elsewhere. Some cases may require the motherboard to be completely replaced.

Fix the Problem

If an LG plasma TV has no picture and no sound, then either the Y-sustain or the Z-sustain are at fault. Follow these steps to determine and fix the problem.
  1. Unplug the TV and wait for 10 minutes for all the capacitors to discharge. Then open the back panel of the TV.
  2. Unplug the Z-sustain from the TV and plug the TV into the power supply. If there is sound, then the Z-sustain is faulty and will need changing.
  3. If there is no sound, follow the same procedure and unplug the Y-sustain. Check for sound. If there is a sound, then the Y-sustain is faulty.
  4. If the Y-sustain is faulty, a user may have to check the Y-buffer. He will have to follow the same procedure and unplug the Y-buffer this time. If there is some picture with sound, it means that the Y-buffer is faulty.
Keep in mind that a plasma TV runs on very high voltage. The voltage on some connectors exceeds 400V (in excess of 200 joules of energy). This high voltage can be very dangerous. That why it's important for users to always make sure the capacitors have discharged before performing any type of diagnosis or fixes on an LG Plasma or any other television set.
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LG TV 60PZ550 black screen no pic or sound green lit flashing it has back lite

LG 60PZ550 Plasma - No Sound, No Picture - Badcaps Forums ...

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I have a 15 inch TV LG Smart TV something went out on it what could it be the model number is 50LN5700UH the LG light comes on but no picture

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Jan 25, 2013 - Uploaded by Tampatec Common LG LCD TV REPAIR - NO PICTURE OR BLACK SCREEN FIX ... came on good with green light working properlybut still no picture.
0helpful
1answer

LG plasma 60pk750.has sound,no picture.ps board has all correct voltages

Check its audio output card for the fault. Click here to get more details.
3helpful
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LG plasma TV turned off, after the picture very light

I think you have a defective power board. the pop sound in coming from the board and giving you a low output voltage. do it yourself price about two hundred for parts.
0helpful
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Lost picture on my LG 42" plasma model number 42PC1DV

it is problem high voltage unite problem (EHT) change it then solve your problem
2helpful
2answers

LG 50" plasma tv

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.
367helpful
34answers

42 inch LG Plasma TV - Lost picture

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.
0helpful
1answer

42 inch LG Plasma TV - Lost picture

ysus pcb that supplies voltage to the panel is faulty
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