any to help me to find the replacement plsss
SY8206BQNC pu401 lenogo g50-45 amd
SY8206BQNC pu401 lenogo g50-45 amd
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Hi. Please, help me to find Asrock z590 extreme or similiar board schematics or boardview. -
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I have the NM-A281 with fried the KBC.
I also noticed that the SY8206BQNC [pu401] that provides the 3,3 V gives 3,83V at +3VLP and at +3VALW.
That must be a good reason why KBC was fried.
I removed the KBC and measured the parts that regulate the output in my opinion - the PC411, PR407, PR444 and the PC403 are ok.
Also I replaced the SY8206BQNC but i get the same output that is too high.
I placed a new KBC and also noticed that U13 burns hot I guess by the efford to regulate down as I get 3,07 & 4,94 at the ouput [no short at output].
Any suggetions... -
Hello, can someone help?, this Acer Aspire A314-21(DA0ZASMB8D2 Rev. D), flashing/flickering LCD when brightness set to full, sometimes it changes to green, red and white screen, I think there is problem with backlight control or LCD power, I have DA0ZASMB8D0 boardview and schematic, but not real D2(14 inch), but component look similiar, I don't have osciloscope to measure voltage ripple to lvds route, but I highly suspect it must be it, can someone enlight me? -
Hi 😄
I have a NM-B461 board that doesn't boot up.
Current observations:- The board has no obvious damage, corrosion or previous tempering
- I measured the voltage on the TYPEC_VBUS20 and USBC_VBUS20 lines (which are the rails that get powered first according to the schematics) - the dock port measures 5V and the direct port 0V.
- USBC_VBUS20 (the rail from the direct port) measures 0.3V when powered via the dock port?! There is no short between those lines tho and there is no connection in the schematics.
- None of the power rails are shorted to ground
- Diode measures (red
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