Greeting fellow badcaps friends!
I've got an ASUS PA238QR with issues. The monitor front panel LED turns on; and the backlight turns on; but then both turn off after a few seconds. No input shows, no OSD menu.
After taking the monitor apart, visual inspection of the capacitors showed nothing abnormal. All caps and other components on both the switched-mode power supply and logic board look fine. I checked capacitance with a multimeter, and all of them look fine. I also checked the resistors, diodes and fuses while I was at it, and those are fine.
When powered up, the switched-mode power supply shows 5.2v on the 5.0v output pins... but 16.2v on the (indicated) 14.5v pins. I'm wondering if overvoltage is my issue here, and if so where the culprit lies.
Any suggestions?
Thanks in advance.
I've got an ASUS PA238QR with issues. The monitor front panel LED turns on; and the backlight turns on; but then both turn off after a few seconds. No input shows, no OSD menu.
After taking the monitor apart, visual inspection of the capacitors showed nothing abnormal. All caps and other components on both the switched-mode power supply and logic board look fine. I checked capacitance with a multimeter, and all of them look fine. I also checked the resistors, diodes and fuses while I was at it, and those are fine.
When powered up, the switched-mode power supply shows 5.2v on the 5.0v output pins... but 16.2v on the (indicated) 14.5v pins. I'm wondering if overvoltage is my issue here, and if so where the culprit lies.
Any suggestions?
Thanks in advance.
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