Samsung UN55C7000WF Support Question
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Question posted by thaduke on November 30th, 2012
Tv Is Not Turning On
Current Answers
Answer #1: Posted by TVDan on December 1st, 2012 12:42 AM
It is likely either the power board or the main board. The part number for the power board is BN44-00376A, the part number is probably BN94-02757C (these sets are made at several plants so they sometimes use different parts the serial number is needed to ensure the proper part number is used).
There is a test to determine which board is bad. Take the back cover off and you will see the two big boards. The one the power cord hooks to is the power board, the one with the video input jacks is the main board. There is a multi-wired harnes that hooks these two boards together. Simply disconect one of the ends of this wire harness and hook the AC cord back to the wall. If the panel lights up then the main board is bad, if it stays completely black then order the power board. Of course with this harness disconnected the TV will not work, all we want to do is determine if the power board is capable of developing the voltages needed to light up the back light LEDs. If the main is bad, then look for the part nuber on a tag or ask another question with the full serial number and I can do the research for you.
http://www.encompassparts.com/item/8172319/Samsung/BN44-00376A/Dc_Vss-led_Tv_Pd_Bd
http://www.encompassparts.com/item/8172263/Samsung/BN94-02757C/Assy_Pcb_Main
you can order parts here or maybe a place like ShopJimmy.com or E-Bay might have a harvested board from a TV that the panel was broken for much cheaper.
TV Dan
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