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Plasma tv has sound but no display at all - Televison & Video

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  • kareml Sep 27, 2008

    prima PS-42D8C

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Check the heater power supply. you can find it at the CRT circuit at the back of the Picture tube. labeled H1 and H2 check the resistor Bias or re-heat CRT socket.

Posted on Sep 27, 2008

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  • mohammed marika thambi
    mohammed marika thambi Sep 27, 2008

    tv life is only around
    7 years. there is several different circuits in the tv that can cause
    this problem. a repair cost will range 800.00-1500.00 depending on what
    boards are bad. it could run more but the set needs to be looked at to
    be sure.make sure when you call a repairman he knows what he is doing..........

    good luck..............

  • mohammed marika thambi
    mohammed marika thambi Sep 27, 2008

    That also means that either the X-sus, Y-sus or the Z-sus board isn't
    powering up the pixels....I doubt the power supply is faulty since you
    do get sound.

  • mohammed marika thambi
    mohammed marika thambi Sep 27, 2008

    I suggest that you check the cords again and see if they are loose
    Also check the display settings and television settings by using your
    remote. If these do not work, try getting your television checked by a
    repairman as maybe he could fix your television set.


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CAn you please provide us the model and brand of this unit so we can hlep you better..

Posted on Sep 27, 2008

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I have no plasma display after hearing a popping sound


Sustain board fault. Check and replace the faulty one. Check the electrolytic capacitors at these boards. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

Jul 24, 2016 | Samsung 50 in. Plasma TV

1 Answer

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.

Feb 04, 2016 | LG 42PW350 42-Inch 3D Plasma HDTV...

1 Answer

Hp pl5060 Plasma TV has no sound or pix. Screen flashing white


I have a seven year Plasma TV HP PL5060. When I turn on the TV, I have sound but no picture, the screen display (power on) is a snowy blue screen and vertical pink stripe. What is causing this problem and how can I fix it cheap. I can afford a TV repair man at this time, because I am laid off from work. Thanks.

Dec 15, 2012 | HP PL5060N 50 in. Plasma HDTV

1 Answer

Tv has a little crack and now i have no picture only sound


"a little crack", in the context of plasma displays means totally broken display, which means it's time for a new TV.

Sep 30, 2012 | Samsung 50 in. Plasma TV

1 Answer

Plasma has no picture but sound works???


If the set was struck even a moderate blow anywhere near the screen you may have a bad plasma display panel---the diffused picture sounds like that.

Sep 01, 2012 | Pioneer PureVision PDP-5040HD 50 in....

1 Answer

My dell 42" plasma tv


HI
Try restarting,check that every connection that should be connected is connected.
Especially the scart connection, they have a tendency to cut out the sound or colours.
goodluck
Kolbrun

Aug 11, 2011 | Dell W4201C 42 in. Plasma HDTV

1 Answer

I have a Vizio 50 Plasma TV. Sound works but display is "noise".


It'll be the X or Y boards or maybe the power board, without checking the VA and VS voltages I can't tell.

Aug 29, 2009 | Vizio P50HDTV10A 50 in. Plasma HDTV

1 Answer

Help


Step 1
Shutdown your computer and look at the rear of the case to determine the type of video connections that your machine has. Nearly all computers will have the standard 15-pin VGA output port. In addition, you may also find that your computer has an S-video port, an RCA composite video port, a set of three component RCA video outputs or perhaps even an HDMI output port.
Step 2Determine the types of video inputs that are available on your plasma TV. There should be a standard RCA composite input, a three-jack RCA component input and an S-video input. In addition, you may also find a 15-pin VGA input, a DVI input or an HDMI input. Step 3 Select which type of connection you will use. HDMI and DVI represent the highest-quality connections, followed by VGA, Component, S-video, and composite. If your computer has only a VGA output and you will not using it solely to drive the plasma TV, you may want to invest in a video card upgrade. Most new video cards will offer dual monitor connections and possibly a separate TV connection. The first monitor connection is intended for the main computer monitor, and the second monitor connection, or the TV output, can be used for either a second monitor or a TV. Depending on the card, the TV output may be DVI, HDMI, component, S-video or composite. Step 4Purchase a video cable long enough to reach from your PC’s video output to your plasma TV. If the distance is over ten feet, you may want to invest in high-quality cables to ensure that the plasma TV receives a clean signal for the best possible picture. Cables over thirty feet in length, depending on the connection type, may result in poor video performance. Step 5Set your computer’s screen resolution to something that your plasma TV can accept, using the “Display” settings in the “Control Panel” in Windows. Refer to the owner’s manual of your plasma TV for the supported resolution and refresh rate. If you are using the S-video, composite or component outputs on your computer, this step may not be necessary. Step 6Connect your PC to your plasma TV using the appropriate cable. Start the computer up and it should recognize the attached display. In the “Display” settings, you will need to configure how the plasma TV is used if it is attached a second display. Most video cards support “Clone” or “Mirror” mode, which displays the same content on both displays. In addition, there is the “Extended” mode, where the second display will operate independently, and windows can be dragged from one screen to the other. If your plasma TV is the only monitor for the computer, you will not to configure the multiple display modes. Step 7Connect a cable from the sound output of your PC to your plasma TV using the appropriate audio adapters. Then relax on the couch and enjoy your videos on the big screen.

Aug 09, 2008 | Computers & Internet

2 Answers

No picture, sound works. Screen flickering


That problem is caused by the Y Sustainer board.

Oct 12, 2007 | Toshiba 50HP66 50 in. Plasma Television

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