Update. I got a replacement MB for UN49MU7600F and the TV is fixed after replacing the MB. Thanks for all the helps. 😀

Thanks for the advice. I can't find C277. My MB BN41-02568B/BN94-12399A looks different than yours. But I get 3.3V on eeprom IC so 3.3V is good. I will check if there are any shorts. Next will try to get replacement MB....

backlight come on when disconnect MB. A13V read 9V when MB connect. no standby LED. Thanks...

Thanks for the confirmation. What else can cause the no power problem? Thanks...

Hi lotas. I have a UN49MU7000F with same problem mentioned in this post. I tried to flash the fixed dump in #22 but it didn't work. My original dump is attached. Will you please help take a look? Thanks...

Thanks for the solution. I was able to fix the same issue on Vizio M50-C1. Have to solder enamel wires to bypass all the connectors.

[ATTACH=JSON]{"data-align":"none","data-size":"thumb","data-attachmentid":3152933}[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"thumb","data-attachmentid":3152934}[/ATTACH]Thanks for the solution. I was able to fix the same issue on Vizio M50-C1. Have to solder enamel wires to bypass all the connectors.

[ATTACH=JSON]{"data-align":"none","data-size":"thumb","data-attachmentid":3152933}[/ATTACH]...