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bstewara · 10-12-2021, 05:55 PM

Hi,
I have replaced the main board with 2 different replacement boards from TV PARTS TODAY and also replaced the power supply board once with no change.
(Am I getting defective boards from TVPARTS TODAY? They’re supposed to be fully tested before shipping)

I’m a little curious to why I’m not getting the 3 VDC standby voltage.
I’m just not sure what voltages I’m supposed to be getting on CNM 803 as they aren’t marked on the PS board.

10-12-2021, 05:55 PM	#4
bstewara Member Join Date: Jun 2019 City & State: Spring Hill Florida My Country: USA Line Voltage: 120VAC I'm a: Knowledge Seeker Posts: 34	Re: Samsung un49mu7000f dead no power Hi, I have replaced the main board with 2 different replacement boards from TV PARTS TODAY and also replaced the power supply board once with no change. (Am I getting defective boards from TVPARTS TODAY? They’re supposed to be fully tested before shipping) I’m a little curious to why I’m not getting the 3 VDC standby voltage. I’m just not sure what voltages I’m supposed to be getting on CNM 803 as they aren’t marked on the PS board.