Reply To: XD-05 Plus suddenly stopped working, PROTECT on display

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#1231
xDuoo Official
Senior Moderator

Hi, I have seen your picture, there are two mistake: 1. Your op amp chip (opa627) is installed reversely, side with groove should face the white relay. 2. The OPA627 is a single channel amp chip, which cannot be inserted in this position. you should insert two opa627s  on both sides, Or you find a dual channel op amp chips to insert in this middle position