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[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3259905}[/ATTACH] Hi, look at the diagram [URL=filedata/fetch?id=3259901&d=1714067402][ATTACH=JSON]{"alt":"Click image for larger version Name:\t96139538-B210-4B06-98CC-51F00079EE06.png Views:\t0 Size:\t636.7 KB ID:\t3259901","data-align":"none","data-attachmentid":"3259901","data-size":"medium"}[/ATTACH][/URL]...Last edited by kasfamily; 04-25-2024, 11:52 AM.
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Hi, [URL="https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2211101830_BITEK-Beyond-Innovation-Tech-BIT3368_C5252694.pdf"]https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2211101830_BITEK-Beyond-Innovation-Tech-BIT3368_C5252694.pdf
https://youtu.be/buk5Wbxnecc?si=UHsCWHmXYupgaAfu[/URL]Hi, [URL="https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2211101830_BITEK-Beyond-Innovation-Tech-BIT3368_C5252694.pdf"]https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2211101830_BITEK-Beyond-Innovation-Tech-BIT3368_C5252694.pdf
https://youtu.be/buk5Wbxnecc?si=UHsCWHmXYupLast edited by kasfamily; 04-08-2024, 12:08 PM.
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Hi, the front panel is working by DC because it doesn't need negative voltage. Minus 8 volts is only needed to power the chips operational amplifier .
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So disassemble the adapter and remove the diodes from it and it will turn into AC
And the filter capacitor must also be removedLast edited by kasfamily; 03-15-2024, 09:28 AM.
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Check the external power supply - it should output an alternating voltage!
[ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3235356}[/ATTACH]...
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Check the voltage : 3,3/5/8/-8/ [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3234665}[/ATTACH]...
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Ok.
Check the voltage on the PFC capacitor in the power supply - it should be about 400 volts.
Check all voltages DC/DC on the motherboard.Last edited by kasfamily; 03-05-2024, 02:59 PM.
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