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Louie
Louie, Technician
Category: TV
Satisfied Customers: 12675
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
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Ihave LG 26LC46.when power on blinks led many times and

Customer Question

Hi.ihave LG 26LC46.when power on blinks green led many times and after tv is on with white screen
JA: What's the model number of your TV? How old is it?
Customer: model 26LC46.
JA: Does the TV menu work? Do you have the same problem on all sources/inputs?
Customer: NOT WORK
JA: How long has this been an issue? What happened right before this popped up?
Customer: 3 months.blinking 2 times and after ok.last week blimking 15 times and after white screen
JA: Anything else you want the Expert to know before I connect you?
Customer: i replace 4 caps on psu board who are damaged
Submitted: 1 month ago.
Category: TV
Expert:  Louie replied 1 month ago.

Hi and welcome to JustAnswer, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.
Initially, please post back with clear pictures of the inside circuitry. Click HERE.
These pictures would then serve as common references.

This is an independent site and members of this online community provide information, repair tips, technical assistance as a form of paid Q & A service.

Customer: replied 1 month ago.
Expert:  Louie replied 1 month ago.

Appreciate the pictures.

A white screen almost always indicate a failed T-CON interface.

Have you checked the LVDS cables from the main board to the T-CON board? ...from the T-CON board to the screen/display?

Customer: replied 1 month ago.
i chekt them and also clean with alcohol
Customer: replied 1 month ago.
also i plug a scart to another tv and see only snow(like no aerial signal).i press the menu on fault tv but no change.
Expert:  Louie replied 1 month ago.

I understand.

The simplest approach would be to replace the T-CON board.

Not unless you would want a limited component level checking first.

Considering the cost of a used board from a donor TV, board replacement may be more to your advantage.

This would serve as both an attempt of a fix and as a test by process of elimination.

Please post back how you would want to approach this and/or should additional information be needed.

Customer: replied 1 month ago.
thanks for answer.i order t-con and come backRegards
Expert:  Louie replied 1 month ago.

Please click HERE and HERE to consider / serve as basis.

Expert:  Louie replied 1 month ago.

Hi again,

Is further information/assistance still needed with this?

Customer: replied 1 month ago.
Hi.
i recheck power supply and found i have all voltages except the 3.4v.
so i order a new psu.when i have it i report
Expert:  Louie replied 1 month ago.

Appreciate the post back and an update when able.