Question about LG 42PX4DV 42 in. EDTV-Ready Plasma Television

42 inch LG Plasma TV - Lost picture

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! .

19 more comments
Sue in ABQ Dec 15, 2007

We were watching the ESA 42 plasma on one night - fine - next am - no picture - just big wide lines. Unable to get anything in terms of a picture. Only 2.5 years old?
banny Dec 18, 2007

no power to my screen now bush 42 inch just a year old nothing will come on
jorgeAAikman Dec 20, 2007

Hi, was watching the 42" LG Plasma, when the picture went and a horizontal line appear in the screen for a short moment and went, the screen are with no pictire, the sound is normal and I could switch channels but no picture in the screen. Thanks
Anonymous Dec 31, 2007

No picture, still receive sound. about to replace small fuses, let you know if this works
Anonymous Mar 09, 2008

50 inch plasma..heard loud 'pop' picture went out but still have sound???any ideas what happened and what to do?
dickturpin66 Dec 14, 2008

hi i have a 42" lg plasma,the screen has been going light and dark every now and again.then suddenly i heard a pop and the picture went.i'm still getting sound and i can turn the channels over.
Anonymous Jan 13, 2009

i the i the
Anonymous Mar 12, 2014

operates as normal. has sound, can change channels but there is no picture display
Anonymous Mar 14, 2014

42 in. Hitachi plasma has no picture & no sound. Will not display input settings.
Anonymous Mar 14, 2014

I have a 55 inch i have no sound the tv won't turn off the side button don't. Work either .....but the picture is good n my optimum channels work fine should I just unplug it ? If not how do I reset it
Anonymous Mar 17, 2014

delay in picture showing on lg- 42lc7d-ub plasma tv
Anonymous Mar 18, 2014

tyring to retune LG Plasma tv tyring to retune LG Plasma tv
Anonymous Mar 22, 2014

Picture good on TV, but no sounh only static sound when TV on
Anonymous Mar 23, 2014

TV has good sound but no picture, no images black screen
Anonymous Mar 24, 2014

42" HD Ready. 6 years old. 1st problem and hopefully the last
Anonymous Mar 25, 2014

DVD plays in black and white on LG 42 inch plazma tv
Anonymous Mar 25, 2014

Has sound but know picture just replaced the centre panel on the back
Anonymous Mar 27, 2014

My LG50PY3DF-UJ Plasma turns on ok but then switches itself off after 3 seconds, how can I fix it?
Anonymous Mar 27, 2014

screen went blank no picture at all screen went blank no picture at all
Anonymous Mar 31, 2014

i canot remember the number of the input pastword for my 42 inch l g tv can you help please
Anonymous Apr 01, 2014

Help resetting code to tv Help resetting code to tv

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15 Answers

Ysus pcb that supplies voltage to the panel is faulty

Posted on Dec 15, 2007

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Posted on Jan 02, 2017

Anonymous

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SOURCE: Hi , was watching my 42 inch LG Plasma TV last

Sounds like a capacitor blew on one of the boards. Can you detect any burnt electronic smell? If the Cap blew on the Power Supply, you can either replace the Capacitor or replace the power supply board. The boards are between $79 and $149 depending where you get it. Some of the other boards, Y or Z Sus, are between $179 and $300. If you can't do it yourself, and with many 42" models selling for $649 to $899, it might be too expensive to fix.

You can find the boards on ebay or shopjimmy, youtube has videos showing how to replace them. Hope that helps.

Posted on Feb 17, 2010

Anonymous

92 Answers

SOURCE: 42 inch LG Plasma TV - Lost picture

sounds like it may be a software upgrade

Posted on Oct 31, 2007

Anonymous

SOURCE: 42 inch LG Plasma TV - Lost picture

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

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Hi it sounds like it has had an elctric fault like a resistor failing.
The click you heard would be a internal switch that cuts off the elctric supply to the screen to stop furthe damage hapening.
It could even be something simple like a bad solder and in that case will need locating and resoldering.
How old is the telly and how often is it used.
When you switch it off leave it off for about an hour then try again if you have allready done this then it probably is a blown resistor are you sure nothing has been pressed on controll have you tried seeing if you can acess the menu screen via the remote and see if that comes up on the screen let me know ok

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