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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  • badbouy Mar 31, 2008

    screen turn black after 4 minutes.



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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

No picture, has sound

Well if you still have sound it means that not everything is dead inside. You could take off the back cover and look for cracks or broken solder joints(specially around the larger transformers on the main circuit board, You might also want to look at the small board mounted on the back(neck)of the picture tube and make sure it is plugged in all the way.
As for resurrection you may need patience and lot of solder. Good luck

Dec 02, 2009 | Televison & Video

1 Answer

Television is dead. won't turn on picture or

There is a fuse in tvs I've had to change one myself

Oct 16, 2009 | Mitsubishi CS-26201 TV

1 Answer

Not power not picture or sound

If its Dead Dead ,that mean no power is getting past the fuse :> then it needs a fuse
.30 vs 300.00-400.00

Ok there is a way of telling if its posibley
just a fuse . First no blinking lights ,good
no clicking sound from the set when you
try to turn it on .good

now unplug the set for about 30min
the plug it back in slowley if you
see and or hear sparks coming from
the plug , this is normal but bad news
for it being just a fuse , if you dont
see or hear a spark its likley just a
5-8 amp fuse blew inside the set. :>

Hope this was helpful

Jul 02, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

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Dead Microwave

Check your plug and change the fuse there also.

You might need to rechange the 20 amp 250v fuse behind the control panel again due to the recent spark.

If none of this works then i'm afraid a certified technician needs to check the power packs and boards

May 22, 2009 | KitchenAid KHMS155LSS 1000 Watts Microwave...

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 | Televison & Video

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