Lg tv color cycling on the whole screen

[llanero75]

Hello again. I need your help and advise one more time
Some time ago a friend gave me a non working tv top see if I can fix it to give it to my kids.
Well, this tv as soon as I turn it on it starts changing colors one color at a time on the whole screen for a few seconds each color.
I googled and some people mention a reset pressing menu enter and power but that didn't work. I have no remote control and can't access any menu or change inputs.
What could this be?

[llanero75]

Re: Lg tv color cycling on the whole screen

Lg tv model 26lc7d

[llanero75]

Re: Lg tv color cycling on the whole screen

[ReeceyBurger123]

Re: Lg tv color cycling on the whole screen

Pictures of the boards and the fault please !

[Alastair E]

Re: Lg tv color cycling on the whole screen

You'll need to get a Remote-Control and then you can re-set it.

[budm]

Re: Lg tv color cycling on the whole screen

you'll need to get a remote-control and then you can re-set it.

+1

[llanero75]

Re: Lg tv color cycling on the whole screen

Cool, I will find a remote. I'm guessing that with the remote I can input the reset code, right?

[Hamie]

Re: Lg tv color cycling on the whole screen

Well to get into the service menu you need to press and hold 'OK' on the TV and 'OK' on the remote at the same time for 5 seconds and it brings up the menu.

Alternatively, if that doesn't work, it will be 'MENU' on the remote and 'menu' on the TV.

[llanero75]

Re: Lg tv color cycling on the whole screen

I found a remote that works with this tv and did the button pressing thing menu+ enter+ power and nothing happened, the tv just turned off, after turning it on the problem was still there.
Then did the menu on both the remote and tv then the ok on remote and tv and waited for about a minute on each combination pressed at the same time and nothing came up.
Here are some pictures of the problem and the back of the tv

[llanero75]

Re: Lg tv color cycling on the whole screen

Pictures

[budm]

Re: Lg tv color cycling on the whole screen

http://www.askvg.com/secret-service-...ony-and-lg-tv/
I am not sure how accurate it is.

[llanero75]

Re: Lg tv color cycling on the whole screen

well, thanks for your reply but as i stated earlier none of those codes or combinations are working.
I have a few questions
Is this a mainboard problem?
If it is , is there something that can be done physically to that board to reset it without using remote or tv buttons?
Or can the problem be fixed by replacing the mainboard?

[llanero75]

Re: Lg tv color cycling on the whole screen

[bikerbuddy]

Re: Lg tv color cycling on the whole screen

1 Your TV is stuck on a test pattern mode

2 You have to have the right remote for this TV before you can get into the Menue to cancel out the test, Google the model of your TV to see if you have the right remote.

3 In most cases the service manual will tell u how to get into the menu to do a reset .

4 If you do not have the right remote,Look around your local pawnshop and see if they have a TV like yours with a remote and if they do, hand the clerk a $20.00 bill and borrow the remote and work on yourTV then return the remote .

5 Or replace the main board .

Good luck.

[llanero75]

Re: Lg tv color cycling on the whole screen

Thanks, oem remote it's on the way. Will update as soon as I get it and test it. Thanks again

[llanero75]

Re: Lg tv color cycling on the whole screen

Hey guys, update
I have received a new oem remote
After testing all the button combinations, non of them bring any menu up or reset the tv.
I pressed menu on remote and tv for about a minute with tv off then on
Enter on remote and tv for about a minute with tv off then on
Press menu+ enter+ power for about a minute tv off then on
And nothing happened.
Is there any time frame to wait with the buttons pressed?
Am I screwed?
Will changing the main board fix this?
Any guidance will be appreciated
Thanks

[pshnmeawy]

Re: Lg tv color cycling on the whole screen

Some kind of test pattern

[llanero75]

Re: Lg tv color cycling on the whole screen

Some kind of test pattern

How to get rid of it?

[nicholas1110]

Re: Lg tv color cycling on the whole screen

Hello,

With lg TVs you need a special service remote to enter service menu. Probably easiest to just buy a replacement main board.

[llanero75]

Re: Lg tv color cycling on the whole screen

Update
Replaced main board with a used one from eBay and that fixed the problem.
Thanks to all of you for your help and suggestions