Yamaha NS-BP300 Service Manual

Also see for NS-BP300: Owner's manual Owner's manual Owner's manual Owner's manual Owner's manual

27R-840/NS-BP300R-840/NS-BP300● Display provided when Self-Diagnostic Function startedThe FL display of this unit displays the history of protection function data then the main menu (sub-menu FIRMWAREVERSION/DESTINATION of main menu No. 1 VER/DEST/SUM) a few seconds later.When there is no history of protection function:When there is a history of protection function:When there is a history of protection function due to abnormal voltage in the power supply section.When there is a history of protection function due to abnormal DC output from the amplifier.When there is a history of protection function due to abnormal temperature.For details of protection functions, refer to the main menu No. 4-1 PS1 / 4-2 PS2.For details of protection functions, refer to the main menu No. 4-3 DC.For details of protection functions, refer to the main menu No. 4-4 THM.After a few seconds Main menu displayOpening messageA/D conversion value of voltageA/D conversion value of voltageA/D conversion value of voltage● History of protection functionWhen the protection function has worked, its history is stored in memory with a backup. Even if no abnormality isnoted while servicing the unit, an abnormality which has occurred previously can be defined as long as the backupdata has been stored.The history of the protection function will be initialized when self-diagnostic function is cancelled by selecting No. 3PRESET RSRV (Memory initialized) / No. 5 PROTECTION HISTORY (History reset) or when the backup data is erased.