Question about LG 42PC3D 42 in. Plasma Television

1 Answer

LG Plasma 2 years old just started turning off and on

The tv goes on and off sometimes a few times in a row and sometimes it takes a little longer. Any suggestions - we checked with our cable company and they checked out connections and gave us a new cable box. Assume it is the TV. Any suggestions. My TV tries to turn on, but it just shuts off. I tries again and again. the only way i can get it to turn on is by turning it off and on using the power strip. this started after our power company had a black out a few months ago. Is there a part that can be changed to correct this?

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 187 Answers

You will need to replace the mainboard, you only need to be sure your cable box is connected to the TV using ONLY one cable because if you use HDMI and another cable (ie. HDMI and COMPONENT) could show that sympton.

First try unpluggin everything from the TV and try to turn it on, if you continue with the trouble then you can be sure you need to replace the mainboard.

Posted on May 29, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have an LG 60PV400 plasma TV. While watching TV the screen goes black but the sound keeps playing. Sometimes the sound will just keep playing. Sometimes the TV while shut off.


Hi Joseph

Not sure what the LED codes will be. LG Tech support would know.
Is it under warranty still? If so, then get it to a service centre.

If not, Then you might want to check for leaky Electrolitic Capacitors.
This is the biggest ploblem with modern Digital (computer) Flat Panel TV's
Might be a little early to spot the "Bulging" or leaking until it gets worse.
If your up to it & you can spot the bad caps & unsolder & replace for a few bucks.

Good Luck

Switched mode power supply

How to Replace an Electrolytic Capacitor

Take Static Discharge Precautions inside devices
Antistatic wrist strap

Feb 13, 2016 | LG Televison & Video

1 Answer

My lg plasma really flickers but it does this randomly. Sometimes it will happen all the time other days not at all. I have tried sorting the cables and unplugged etc. it is 10 years old but just wanted...


I suspect its a component (Capacitor) aging and eventually would need to be replaced. How do you have it connected? Is there a cable box or Direct TV receiver that you use to display TV Channels? If 10 years old does it even have an HDMI input? Should be very happy you got 10 years of life out of this Plasma. My thoughts is that it would take more to repair this than to purchase a new LCD or LCD/LED thinner TV. Plasma does have the best color but the LCD and LED TV's are much lighter/take less energy and are much brighter. Good luck.

Dec 10, 2014 | LG 42PX4DR 42 in. Plasma TV

1 Answer

Vertical lines on LG 42 inch


check your LCD connectors. also video memory.

May 29, 2009 | LG 50PX1D 50 in. Plasma Television

2 Answers

Plasma "warm up" is now up to 30 minutes and climbing


put a towel across the top of the tv so it can heat up faster and you will get your picture. be carefull!!

Jan 26, 2009 | Televison & Video

1 Answer

LG 42PC3D Plasma TV Will Not Stay On


Could be a failing poser supply

Apr 22, 2017 | Televison & Video

1 Answer

LG 50" Plasma Start Up Problems


The logical fix would be to activate your 3 year warranty, messing about yourself is unlikely to fix it and very likely to void your warranty. The time for do it yourself repairs is when you have no warranty.

Nov 25, 2017 | LG 50PC5DC 50 in. Plasma HDTV

2 Answers

LG TV not turning on


Yes you can get this fixed and it is still worth it. It may cost $200 but it should last a long time.

Nov 12, 2008 | LG 42LC2D 42 in. LCD HDTV

1 Answer

LG DU-42PX12X Plasma, picture startes flashing then goes black after a few minutes


You need to get this tv service asap.i beleive that the problem is in the inverter board or yb board.


good luck

caypianan@yahoo.com

Oct 25, 2008 | LG 42PX5D 42 in. Plasma HDTV

1 Answer

Samsung HD tv help


Is it a Plasma Television? I recently had a customer have the same issue with a 2 year old model Samsung 50" plasma TV. In his case one Of the computer panels failed. He didn't have a service plan and the warrenty was out, so i directed him to Samsungs help line. They inturn directed him to a authorized repair center. Repairs were roughly $800. Thats a possibility but it may not be the same as your issue. Try leaving your TV running for a little while when it has the issue, and see if it eventually goes away. Some older plasma models have started to require a warm up time for the pixel cells. This has been a down fall of plasma that for the most part no longer exists on newer models.
I hope eveything works out.

Have a great day

Mar 22, 2008 | Samsung LE40R72BDX 40 in. HD-Ready LCD...

2 Answers

My plasma tv picture is green


take off back panel and adjust the V12(A) adjuster wheel on the power board it adjust the gas flow to the screen is should light up your screen

Sep 30, 2007 | LG MZ-42PZ14 42 in. Plasma Television

Not finding what you are looking for?
LG 42PC3D 42 in. Plasma Television Logo

Related Topics:

146 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Televison & Video Experts

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

The Knight
The Knight

Level 3 Expert

74887 Answers

Are you a LG Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...