Before exchanging the “Main P.C.B.”, confirm that the symptom and/or phenomenon is not due to the setting of functions.Important:When replacing the Main P.C.B. that cannot be repaired by exchanging the IC, carry out any of followings.In the case of exchanging the Flash-ROM (IC6003) is same way too.1. When the camera power can be ON, and camera body and adjustment software can be communicated:Before replacing the “Main P.C.B. and/or Flash-ROM”, proceed the EEPROM data backup from the unit.After replacing the Main P.C.B. and/or Flash-ROM, overwrite the EEPROM data with backup data from the unit first,then proceed the adjustment /inspection. (Almost adjustment/inspection items can be omitted.)Refer to the adjustment instruction in the adjustment software for details.2. When the camera power cannot be ON, or camera body and adjustment software cannot be communicated:Almost full adjustment/inspection must be performed after replacing the “Main P.C.B. and/or Flash-ROM”.Refer to the adjustment instruction in the adjustment software for details.