Seeking Help with ASUS UX435EG Motherboard Schematics

Hello, tech enthusiasts!

I find myself in a bit of a predicament with an ASUS UX435EG motherboard that appears to be dead. After conducting several tests, I’m unable to identify any shorts on the board, but I only receive a few specific voltage readings: 8.3V, 19V, 3.4V, and 5V.

Unfortunately, I’m at a standstill and could really use some direction. If anyone has access to the schematic for this particular motherboard, or can point me in the right direction, I would greatly appreciate it. I came across a website called vinafix.com, but it requires a paid membership, which I am reluctant to pursue without further information.

Additionally, the only resource I’ve stumbled upon is an image from a Russian forum, but it doesn’t provide the detailed information I need.

Thank you in advance for any assistance or leads you can offer! Your help could make a significant difference in getting this motherboard back up and running.

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One Comment

  1. Hi there,

    Based on the voltage readings you’ve provided—8.3V, 19V, 3.4V, and 5V—it seems the issue might be related to power regulation or faulty voltage regulators on the motherboard. Given that your tests haven’t revealed any obvious shorts, I recommend the following troubleshooting steps:

    • Verify the integrity of the power input circuitry, including the charging port and fuse components.
    • Use a multimeter or oscilloscope to trace the supply lines and confirm voltage regulation stages are functioning correctly.
    • Look for any damaged or bulging capacitors near the power delivery areas.
    • If possible, review similar ASUS motherboard schematics online (for example, related models) to identify common power management circuits that may be applicable.

    Regarding schematics, since ASUS often keeps detailed motherboard diagrams proprietary, forums such as Electronics Repair Community or specific repair databases may offer partial schematics or circuit diagrams. You could also consider reaching out to professional repair services or motherboard repair specialists who might have access to such diagrams or experience with this model.

    Always ensure to work safely and, if you’re unfamiliar with high-voltage circuitry, consult with a qualified technician before proceeding further. Good luck, and I hope you can pinpoint the fault to restore your motherboard’s operation!

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