Question about Samsung Televison & Video
Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should trouble shoot. Contact any service technician. The circuit will differ with models and versions.
Type in the brand name of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy.
Posted on Apr 16, 2015
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Posted on Jan 02, 2017
I also have a SAMSUNG LE52M87 LCD TV and I have the same
ANOYING BUZZ comming from ( I think ) backlight converter. - I am
almost 100% that its because of the backlight inverter while the sound shifts frequency when backlight is changed ( from 1 - 10 ), but the volume of the buzz stays the same. Only the tone changes. I have this TV for a year now and havent realy noticed until now, so I think it started buzzing recently, because I didnt hear it before ( and I got realy sensitive hearing :) ) ...
ITS DRIVING ME CRAZY ...
PLEASE post what happened when ( if ) you changed the inverter,
or what did you do to solve the problem ...
Many thanks in advance!
Eddie from Slovenia
my email: Ldesign.email@example.com
Posted on Jan 08, 2010
Measure the input voltage to back light inverter board, from the main power regulator board. If it is found OK, replace back light inverter board.
Posted on Jul 30, 2012
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