DENON Service Bulletin OST-F947d free download

File name Service Bulletin OST-F947d.PDF

100 Corporate Drive Mahwah, NJ 07430 Service Bulletin No. : OST-F947d Date: July 18, 2007 _____________________________________________________________ Model: DCM-280, DCM-380 Subject: Countermeasure for an unstable unit upon playing back CDs even though the Optical Pick-up has been replaced according to the Service Information OST-F939C. Symptom: The unit is unstable or incapable of playing back particular CDs. Solution: The firmware has been modified. MODIFICATION: Replacement of the SERVO P.W.B. UNIT Ass'y Please replace the SERVO P.W.B. UNIT Ass'y with the improved P.W. Board on which the Optical Pick-up and the new firmware have been installed. Do this only upon receipt of the complaint that the unit is incapable of playing back particular CDs. Note: In this case, please be sure to obtain the malfunctioning CD from your customer, and check whether the unit is capable of playing back the CD properly or not after the repair.