I have a yamaha psr 530 and a proteus one and 2. i am trying to hook them up so that i can play the yamaha with the synth sounds.
You must mean you want to play the Proteus sounds from the Yamaha -- that is, use the Yamaha keyboard as a controller.
The hookup is very simple assuming you have what you need... the Yamaha's MIDI Out would be hooked up via a standard MIDI cable to the Proteus' MIDI In.
Then of course you have to have the Proteus' audio outputs hooked up to something so you can hear it. And you should disable the Yamaha's own sound -- there's a MIDI parameter called Local Off, if I remember correctly, that tells the keyboard not to play its onboard sounds in response to its own MIDI messages. You could also just disconnect the audio outputs of the Yamaha (unless it's one of those with its own speakers...)
I don't know how extensive the MIDI implementation is on the Yamaha, but you might need to do something more to cause it to actually send messages out its MIDI Out. Refer to the manual.
i also have a digi terratech card and it only has one place to connect midi, and i thought i needed an in and an out.
Hmmm... many cards have a game port connector that takes an adapter which breaks out to a MIDI In and a MIDI Out connector. Maybe that's what you're talking about. A MIDI interface with just an in or just an out would be pretty useless. Sometimes the card manufacturer, if the card is a consumer level soundcard akin to the SoundBlaster, consider this adapter to be optional -- so you might not have gotten it.
