■ UPDATINGThis firmware updating procedure is applied to DSR112, DSR115and DSR215.CAUTIONSince the calibration data written in the flash ROM is initializedwhen updating the firmware, using the INFO inspection ofdiagnostic mode have the calibration values displayed and writethem down in advance.After updating firmware, using the CALIBRATION adjustmentinspection input the calibration values which you wrote down.1. Required Tools• PC; Windows XP with COM1 (RS-232C) port x 1• Serial Communication Jig (WP327800) x 1• DSR-CS Wiring Assembly (WW332900) x 1• RS-232C Cross Cable x 12. PreparationDownload the latest version of application software forupdating and firmware from the YSISS homepage and copythem to C drive of personal computer as shown below.(URL >> http://plaza.yamaha.co.jp/ysiss/exindex.nsf)• Application software for updatingC:¥DSR¥tools¥Updater¥FlashSta(for DSR).exe• FirmwareC:¥DSR¥Firmware¥DSR.motC:¥DSR¥Firmware¥DSR.id3. ConnectionURL >> http://plaza.yamaha.co.jp/ysiss/exindex.nsfSP OUT(CN500)CN905 (6P)CN907 (5P)CN906 (2P)AMP ASSYPCSP OUT(CN300)DSR-CS Wiring Assembly(WW332900)RS232C Cross Cable(5P)(6P)Serial Communication Jig(WP327800)DSR112/DSR115/DSR215/DSR118W66