Yamaha AV-S70 Service Manual

Also see for AV-S70: Owner's manual Service manual

Contents

AV-S70/NX-SW70AV-S70/NX-SW706Display04 DSP DiagFunctionThe DSP DIAG (self-diagnosis) mode is initiated. (Refer to page 7 for the details.)05 Ver-A1.08 Microprocessor version / date displayExample of microprocessor display 05 Ver-A1.08Example of microprocessor date display 05 '99.10.15What is displayed varies depending on the microprocessor software.06 SUM[47a0] Check sum calculation display / re-calculation07 PrCan-OFF All protection cancellation function ON/OFF08 Pr!C–P–S– Protection operation history display / clearC: Center unit amplifier voltageP: Power circuit voltageS: Switch side–: Normalx: Abnormal09 Cors- St. ROM collection (EEPROM) check sum calculation/calculation startWhen there is a data in the ROM collection area of EEPROM:Example of display 09 Cors-288bWhen there is no data, “NON” appears on the display.* The ROM collection (EEPROM) is utilized to cope with the data area for backupand microprocessor bugs partially. The backup memory for the sound field orthe like will be retained semi-permanently even when the plug is disconnected.No data is written in the parts mounted on the product as single units.10 COR-Clear ROM collection (EEPROM) data clear / clear startDisplay is provided only when there is data in the ROM collection area of EEPROM1st time: Data clear confirmation (Clear-ON? displayed)2nd time: Data clear execution (Clear:OK! displayed)After “Clear-ON?Clear-ON?Clear-ON?Clear-ON?Clear-ON?” is displayed, do not use INPUT key for execution(because the program contents will be erased).Using VOLUME + (UP) key and VOLUME - (DOWN) key, select another testprogram.* The IC for ROM collection has a role to help the microprocessor be upgraded. Ifthe written data is cleared, the old version will be restored.www . xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com