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Louie, Technician
Category: TV
Satisfied Customers: 12577
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
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I have the 37lc7d lg tv light on buy no picture

Customer Question

i have the 37lc7d lg tv green light on buy no picture
Submitted: 2 years ago.
Category: TV
Expert:  Louie replied 2 years ago.

Hi and welcome to JustAnswer,

Thank you for the question and your patience. Should you still need assistance for information purposes only...

Initially, with the described symptom of " picture..."; is the screen all blue, black or white?

Even if there is no picture is there still sound? And is the symptom commonly observed on any setting source; TV, DVD player, cable or satellite receiver, others? ...including when attempting to display the MENU?

Customer: replied 2 years ago.
the screen is black and yes on all settings no sound just the green light
Expert:  Louie replied 2 years ago.

Appreciate the additional information; i.e. black screen, no video, no audio. This would then be an internal hardware issue.

Are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even perhaps a soldering iron?

Customer: replied 2 years ago.
i am familiar with both very familiar with both
Customer: replied 2 years ago.
im planning tofix to fix it myself if it is possible
Customer: replied 2 years ago.
Expert:  Louie replied 2 years ago.

Great on the DIY!

Thank you for allowing me time to compose my reply and reference the Service Manual.

Customer: replied 2 years ago.
no thx
Expert:  Louie replied 2 years ago.

Proposed preliminary checks (if have not been tried) ould be with the different voltages at the pins of the connectors. The expected voltages would normally be printed/stenciled on the board itself. Also please check the power supply board which should be something like EAX32268301 or 14 EAY38669901.

Please post back results / observations of the above once tried.

A friendly reminder; voltage measurements by its very nature requires that the unit be plugged in and therefore LIVE! Please exercise due care and caution.