Question about LG 42PX3RV 42 in. EDTV-Ready Plasma Television

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When i switch my LG 42PX3RV PLASMA TV on it flickers for a minute or 2 , can you please tell me what is wrong ?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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Coldcut
  • 1554 Answers

SOURCE: lg plasma

there are 2 types of flicker, one is the lamps that drive the display and the second is the sync signal of the video.
I assume the video sync is the flicker you see,
I would try connecting a different way to make sure it is not the tv,
connect using the aux /rca connectors to cable box.
and or connect using the cable direct bypassing the cable box.
I have seen several complaints about the hdmi cable signal being incorrect in some way,
this is the same issue that the svideo connector had in its early adoption signal was too hot or too low.
another thing to watch out for is the low light sensor on the front of tv if it gets an incorrect reading it can flicker the back light though it should be slow in doing so.
some times the flicker you see is not flicker but ac running through the sides of the picture from an ungrounded cable source.
how does it perform if you play a dvd player , with and without the cable box connected.

Posted on Apr 29, 2008

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  • 7 Answers

SOURCE: lg plasma tv 42pc3dv

you will have to have a tech come check that one out, your gonna need your y-sustain, z-sustain and both y-drive boards replaced.. its a common issue try to get your warranty extended if its out.

Posted on Jun 02, 2008

  • 1 Answer

SOURCE: Lg Plasma Display settings keep switching

When you boot up your tv for the first time, you get to choose between home and shop-mode.
In your case, he TV is set to "shop-mode".
Then it will go back to factory settings after 5-10 minutes. (so that customers won't mess up the settings all the time)

So change the settings from shop to home, and your problem is fixed!

Posted on Mar 01, 2009

  • 20 Answers

SOURCE: 42 LG Plasma picture distorted and flickering

replace the control module.

Posted on Mar 11, 2009

phil_frye
  • 295 Answers

SOURCE: The screen on my 4 yr old 42 inch LG plasma keeps

I believe that you are experiencing an intermittent problem with what's called your florescent lamp ballast. The best thing is that it can be repaired/fix. There should be a LG repair shop in your area. Cheaper to bring it in than have a service tech come to your residence.
Should be between $200 to $300 for a repair.
Blessings,
A/V Media Guy

Posted on Nov 22, 2009

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1 Answer

TV TURNS ON BUT NO DISPLAY AT ALL.


do a reset by manually holding down the power button, sometimes that works

Jan 28, 2014 | LG 42PX3RV 42 in. EDTV-Ready Plasma...

1 Answer

No power, checked plug fuse ,fuse on power board now i am stuck what to check next


You need to do more indepth troubleshooting. Are you getting the any DC voltage in the primary AC side on the big cap(the one with 250~450dc rating).
Here are the service manuals that you will need:
http://elektrotanya.com/?q=showresult&megnev=LG%20&megnev2=42PX3RV%20&kategoria=&kat2=all
You also should check Z and Y sustain boards.
You have to at least get the DC standby voltage (3.3vdc or5vdc) for the processor the minute the TV is plugged in.

Please leave rating if it helps. You may also want to look through some of the LG PLASMA TV training manuals (look at any one of them since the operation concepts are all the same).

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.

Jan 21, 2011 | LG 42PX3RV 42 in. EDTV-Ready Plasma...

1 Answer

My plasma tv has just lost it's picture. I do have


There will be a fault in either the Y or Z sustain boards, these are responsible for driving the screen 9hence sound but no picture). The popping sound willhave either been a fuse blowing on the board or another possibility is one of the drive ICs on the buffer board has blown. If so it's best to replace the board.

Mar 21, 2010 | LG 42PX3RV 42 in. EDTV-Ready Plasma...

1 Answer

What is the manufacturers warranty on my lg 42px3rv as i have lots of red and green spots on the dark colours,sometimes this is worse than others


The manufactures warranty on these sets are 1 year labor 1 year parts.

I hope this helps.

Your feedback is greatly appreciated.
asnowman

Aug 01, 2009 | LG 42PX3RV 42 in. EDTV-Ready Plasma...

1 Answer

Sound but no picture


Your mainboard is giving you trouble, go ahead and replace it.

May 28, 2009 | LG 42PX3RV 42 in. EDTV-Ready Plasma...

1 Answer

Set turns itself on and off with no picture nor sound


You have a major problem with this set. Could be the main board, the Y-SUS board, or the power board or some combination of these.

Mar 30, 2009 | LG 42PX3RV 42 in. EDTV-Ready Plasma...

2 Answers

LG Plasma TV


first i would try unplugging it for about 5 minutes to reset the set. after that i would need more detail as to the problem is there sparkles in the screen is it a certain portion of the set any info you can give

Jul 03, 2007 | LG 42PX4DR 42 in. Plasma TV

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