Let me start off by saying that i know that there already exits a thread with a name similar to this one, but the guy in that thread didn't reply if it was fixed or not, so i'm starting a new one, feel free to merge them if necessary.
With that out of the way, my board models are:
Power Supply: BN44-00195A
Main board: BN41-00962A
What did i do:
I replaced 2 resistors RM801 0.22 and RX801S 750K using schematics i downloaded, removed almost all of the brown glue on high voltage parts, checked voltage on Power_EN which was 0~0.3, and S_B which is 5.2~5.3V, 0V on 24V, and 0V on 18V lines. (See attachments below)
Problem is, once i connect Main Board i start hearing high pitched whining somewhere on the Power Supply Board, and it's in sync with the LED blinking. Any guidance on where i should measure and what i should replace is very much welcomed. Thanks.
With that out of the way, my board models are:
Power Supply: BN44-00195A
Main board: BN41-00962A
What did i do:
I replaced 2 resistors RM801 0.22 and RX801S 750K using schematics i downloaded, removed almost all of the brown glue on high voltage parts, checked voltage on Power_EN which was 0~0.3, and S_B which is 5.2~5.3V, 0V on 24V, and 0V on 18V lines. (See attachments below)
Problem is, once i connect Main Board i start hearing high pitched whining somewhere on the Power Supply Board, and it's in sync with the LED blinking. Any guidance on where i should measure and what i should replace is very much welcomed. Thanks.
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