Am 17.09.2005 um 14:16 schrieb Malte Rogacki: >> Dear members, >> >> I try to create an adaptation for the Technics WSA-1R ( I know, very >> difficult - but at least I >> wanna try it....). When I create a data-request string, I can see all >> the defined bytes appear on >> the MIDI-Monitor except the checksum. I wonder, if this checksum is >> really sent out or just >> not shown in the MIDI-monitor window. I used the SUM pseudo-byte - >> then 3 bytes are >> following - and then the CHK- pseudo-byte. Any ideas?? >> > > The checksum is normally sent out; what's the checksum format? > > -- > Malte Rogacki gacki@gacki.sax.de Hi Malte, the checksum-format is 2´complement. The WSA-1R keeps returning an error-message after sending ANY message. So I think the (missing ??) checksum could be the problem.... regards, - Miro -