Hi, need some help here.
I have this smps for a n850 Samsung Soundbar that gets no output voltage.
I have check everything and found that I'm getting 390v from the main caps on the hot side. However there is an IC that needs 300v to turn on. There are (2)513 smd resistors in parallel that are supposed to drop the voltage from 390v to 300v. However the resistors drop the voltage to 190v through the first resistor and to 25v through the second.
I took both resistors out of circuit and both measure good 50kohms.
I plan on replacing them anyways but not sure that will solve the problem since they tested good.
Any thoughts or suggestions would be greatly appreciated. In the last picture I highlight the path to the resistors and ic I was talking about
Thanks in advance
I have this smps for a n850 Samsung Soundbar that gets no output voltage.
I have check everything and found that I'm getting 390v from the main caps on the hot side. However there is an IC that needs 300v to turn on. There are (2)513 smd resistors in parallel that are supposed to drop the voltage from 390v to 300v. However the resistors drop the voltage to 190v through the first resistor and to 25v through the second.
I took both resistors out of circuit and both measure good 50kohms.
I plan on replacing them anyways but not sure that will solve the problem since they tested good.
Any thoughts or suggestions would be greatly appreciated. In the last picture I highlight the path to the resistors and ic I was talking about
Thanks in advance
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