Hello all and thanks- don’t want to waste your time so I’ll get right to it
Asus VK246H monitor does not power on. I have no electrical testing background but do have a multimeter and know how to use it (thanks YouTube!)
I have confirmed that the board is receiving 120V as read at the power receptacle solder points on the board.
The fuse shows 0 when tested in diode mode unplugged and 120V AC when powered so as I understand it, that means it’s working.
I’ve tested the bridge rectifier (assuming it’s the black standing rectangle next to the brown capacitor) in diode mode and it reads ~.5 at all three points, and zero if i reverse the probes.
However, when I test the BR two inner contacts for incoming AC volts, I only get readings in the 2 millivote range, and the dc test of the outer two contacts (black probe on the negative, red on the positive) reads about .001. To my noob brain, this seems to indicate that the BR isn’t getting any power. I also can’t detect any power at the power at the exit power that runs to the display board
I’ve attached the front and back of the PCB for reference. I searched for the service manual online but did not have any luck. Thanks again if you’ve read this far and I look forward to learning from you!
- Swofra
Asus VK246H monitor does not power on. I have no electrical testing background but do have a multimeter and know how to use it (thanks YouTube!)
I have confirmed that the board is receiving 120V as read at the power receptacle solder points on the board.
The fuse shows 0 when tested in diode mode unplugged and 120V AC when powered so as I understand it, that means it’s working.
I’ve tested the bridge rectifier (assuming it’s the black standing rectangle next to the brown capacitor) in diode mode and it reads ~.5 at all three points, and zero if i reverse the probes.
However, when I test the BR two inner contacts for incoming AC volts, I only get readings in the 2 millivote range, and the dc test of the outer two contacts (black probe on the negative, red on the positive) reads about .001. To my noob brain, this seems to indicate that the BR isn’t getting any power. I also can’t detect any power at the power at the exit power that runs to the display board
I’ve attached the front and back of the PCB for reference. I searched for the service manual online but did not have any luck. Thanks again if you’ve read this far and I look forward to learning from you!
- Swofra
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