Question about LG RZ32LZ50 32 in. LCD Television

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Dead screen there is no picture nor sound. Have changed fuses both in the plug and behind the back cover

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Re: dead screen

Both of you are probably dealing with power supply problems, something you will not likely cure at home.

The loss of picture after a few minutes only means that the problem is not yet stable and complete failure is not far away.

Sorry -

Posted on May 29, 2008

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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.

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

1 Answer

LG 42PC!R Plasma TV turns on and then green led blinking with no ppicture and sound !

Your problem is most likely a fried circuit board. I always connect my good electronic to a back up battery. but your problem might have been storm or surge related, I would take it to a repair center and get an estimate.

Sep 19, 2014 | LG 42PC1R 42 in. Plasma HDTV

1 Answer

I have samsung plasma tv hpp5071x/xaa when i push the power button with remote control, i can hear cliking sound and looks like turn on and see red led light at the bottom right corner and also saww flash...

Hey If you have tried Using remote and side pannels Have you tried another TV to see if its the Cable? Also The clicking sound is normal its the TV's Power-source starting. The fan light I am not sure of but if it happens every-time it should be normal. If the screen gets warm Instantly (Hotish) Then you TV is dead D:

Mar 14, 2014 | Samsung PN42A450 Plasma TV

1 Answer

Blue screen with yellow flashing lines and no sound or picture

All you need to do is open the back cover of the television to check for faulty component and to change the components if bad where necessary.
Power supply board just die.It can be dead at anytimes.Tries websites, to buy a refurbish power supply board for the replacement.

Hope this help in solving the problem.Take care....

Oct 08, 2010 | Flat Panel Televisions

1 Answer

Tv would seem to lose connection ... the screen picture would go"in and out" and then dark, and then come back on. Now the TV won't "turn on" even though the power indicator light is on.

Now,tv turn on have flashes picture few sec.dies and stiill have sound?Yes,than 1 or 2 a long LCD inverter boards are dead. Those 1 or 2 long LCD inverter boards help the LCD screen to have a backlight to produced a picture.No picture or sound at all?The Tuner board is dead,that the board,where the incomming broscasting signal cable plug into it dead.Tries websites like, to buy those 1 or 2 long refurbishes LCD inverter boards or the Tunner board for the replacement.

Sep 19, 2010 | Vizio L30WGU 30 in. HD-Ready LCD...

1 Answer

No picture no sound

After taking the screws out and removing the back, you will see a power supply(where master switch and cord connector are). Remove the 4 screws on the aluminum cover plate to gain access to the fuse. Using a voltmeter, with the power on and switch on, measure the voltage on each side of the round fuse located just behind the cord connector. If voltage is 0, fuse is good. If voltage between 115 and 125 V, replace fuse or have fuse replaced. I think it is a 6.3Ah 250V class fuse that is soldered into the board. IF YOU ARE NOT FAMILIAR WITH SOLDERING TECHNIQUES AND PRECAUTIONS, DO NOT ATTEMPT TO DO THIS. IF YOU ARE NOT FULLY AWARE OF ALL SAFETY PRECAUTIONS NECESSARY TO MAKE THIS REPAIR HAVE A QUALIFIED TECHNICIAN DO IT FOR YOU!!!!!!

Apr 05, 2009 | Olevia 237T 37 in. LCD TV

2 Answers

HITACHI 37PD5200 E Plasma dead.

The fuse is either open or it will have continuity do you have any standby voltages

May 14, 2008 | Flat Panel Televisions

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