How to replace OPAMP
1. Remove a volume knob with a L wrench included basically, and remove 4 rear panel screws with a Phillips screwdriver.
2. Pull the RCA terminal lightly to separate a PCB from the case.
3. After taking out the existing OPAMP from the socket, install the new OPAMP into the empty socket as shown in the picture below so that the direction of OPAMP coincides with that of socket groove.
※ When replacing OPAMP, careful attention to the installation direction is required. If product is damaged or functional problem occurs due to the installation of the improper type of OPAMP or wrong installation like reverse or incorrect insertion, you cannot get services free of charge. Thus, be careful about installation.
※ U7 for FDO, U6 & U8 for I/V & U10 for line-out