這塊被電子愛好者維修過的主板，發現多個人爲故障，修板需先練基本功（第一部分）

(@HuangHeng-m6k)This motherboard was repaired by electronics enthusiasts. Multiple human faults were found. To repair the motherboard, you need to practice basic skills first.

[@和氣-p2x]

反饋電阻有可能😅😅😅😅

[@HuangHeng-m6k]

剛開始也覺得是反饋電路，最後發現是輸出整流二極管性能不好