You must do it carefully. Remove the "old" opamps from the board with sensitivity, not as sharply as in the video (link below), because you can tear off the leg in the opamp. The most important thing is that you put in the "new" opamps correctly. There are semicircular cutouts on the PCB tables, and dots on the opamps, which indicate the correct direction of opamps application. Insert the opamps by gently increasing the pressure until you feel resistance. After replacing, set the potentiometer to zero. Power on xduoo and check for any error message. If there is no message, then slightly increase the volume. If you hear anything disturbing, switch off the amplifier immediately. If there is no interference in the sound, it means that it is ok. Details are in the video. Good luck.please help i don't know what to do !
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