Question about LG 42LH40 LCD TV

Open Question

LG LCD tv turning green - LG 42LH40 LCD TV

Posted by on

Ad

4 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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 repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
jerryg50

Jerry Greenberg

  • 1691 Answers

SOURCE: blinking green light no picture for a lg lcd tv

This is usually an indication that the power supply has failed. It is also possible that there is a short or failure on another board, and the powe supply is in the protect mode.

The set would require proper troubleshooting by an experieced TV tech who knows the type of set you have.

Jerry G.

Posted on Apr 24, 2008

Ad

Kaufman605

  • 608 Answers

SOURCE: My LG 47" LCD TV

I had a similar problem with my 42 in Philips LCD HDTV.


Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you.


1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found online. I would definitely shop around though.


3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.


This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.


Hope this helps and if it does please rate it accordingly. Good luck.

Posted on Dec 19, 2010

Chi Chu

  • 8457 Answers

SOURCE: MY LG 42" LCD TV

Tries tv unplug,replug it back like about an hour later for the tv resetting itself back to the factory setting.Tries again,tv should be working.If still getting no power at all than the tv Tuner board is dead,because pictures freezing and dies completely is the causes so it is not power supply board problems.The tv Tuner signal board is the causes,that the board where the incomming broadcasting signal cable plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish tv Tuner signal board for the replacement.

Posted on Feb 17, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

LG HD TV turns green after about 15 minutes


Two possibilities. T'Con board fault, or panel itself. Contact any service technician to confirm. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/
Defective screen shots to LCD TVs are given. Hopes that can help you to diagonise the fault.

Feb 14, 2014 | Televison & Video

1 Answer

When I turn the tv on, the green power light comes on and then immediately turns off, (light goes red). No image or anything comes up on the screen. Never had any problems before this. Checked all plugins....


Use the remote to switch problem,if it's not works,I am sure the power board problem


https://www.Abctay.com is an online shop ,
We sell television and electrical accessories,all kinds of TV power supply board, logic board, TV LED screen,
TV LCD screen, mobile phone screen, as well as various types of electronic tools,tv parts power supply,LCD,ccfl ,
LED,OLED,lcd panels,HMI,Inverter,LCD screen,lg screen,display screen,lcd monitor,lg lcd, lg monitor ,flat screen ,
touch screen,hmi,bulb,samsung, innolux ,Mitsubishi,philips, hitachi,auo,innolux,Planar, toshiba, siemens,chi mei,Weinview,
Infineon,industrial LCD,industrial control, sharp monitor,vigor plc,delta, mitsubishi lcd,omron plc,etc.

Jul 06, 2017 | LG MU-42PM11 47 in. EDTV-Ready Plasma...

2 Answers

My LG HD tv screen suddenly went green. sound is


Hi,
I disagree with info provided, if screen of your LG lcd tv becomes green that means inverter board is working and lcd tv does not have convergence ICs.
Please unplug tv from ac wall socket for minute to get it reset, replug back in and turn it On and check its picture.
If still showing green screen then change input source with remote, if tv shows same green screen on all inputs that means its either lcd panel problem or digital signal processor got bad loacted on main board. Local tv repairman is needed to confirm and fix it.
Thanks.

Jul 21, 2010 | LG 42LC2D 42 in. LCD HDTV

4 Answers

LG HD 37 INCH TV GREEN LINE APPEARING ALONG THE BOTTOM


On a LX2R to remove the green bar at the bottom or the blue bars on ths side using the sky HD box go to menu and the pip menu at the bottom of the list, access input and make sure the HDMI input is on DTV and NOT PC.

Feb 19, 2010 | LG 32LG30 32 in. LCD HDTV

3 Answers

LG 37LF65 LCD TV BLINKS 3 GREEN THEN 1 RED THEN TURNS OFF.


Here's a link to the service manual for a slightly larger LG LCD TV. Perhaps it may be of some help? The troubleshooting section appears to be the same for many models of LG TVs...

http://www.observations.biz/MANUALS/LG_LCDTV/42LF66.pdf

Mar 12, 2009 | LG 37LC7D 37 in. LCD HDTV

1 Answer

LG 42 LCD no sound or picture


Did anyone find out the solution for this??????? I have the exact same problem with my LG 32 LCD. I only had it for a year and a half, and the green light blinks a few times and it shows no picture. Not even a red light when the tv is off. The same thing happened a couple weeks ago and by some miracle it started working again.

Jan 28, 2009 | Televison & Video

1 Answer

LG LCD 37'' standby problem


if you want i will buy the tv from you

Nov 17, 2008 | LG 37LC7D 37 in. LCD HDTV

1 Answer

37LC7D LG LCD tv turn's on but remote keys and tv side keys unresponsive.


HI,

I'll think your power supply is down.
Maybe there's still garanty on your TV.

kind regards,
Gerard

Oct 07, 2008 | LG 42LC2D 42 in. LCD HDTV

1 Answer

Red or green tint on LG LCD 32" TV


Misaligned white balance adjustment. If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

Jun 14, 2017 | LG Televison & Video

Not finding what you are looking for?
LG 42LH40 LCD TV Logo

Related Topics:

79 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Televison & Video Experts

Ekse

Level 3 Expert

13434 Answers

The Knight
The Knight

Level 3 Expert

76171 Answers

RONALD CARTER JR

Level 3 Expert

438 Answers

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

Answer questions

Manuals & User Guides

Loading...