Yamaha P-250 Owner's Manual - Page 19

NOTE The P-250 does not receive or transmit MIDI Start (FAh), Continue (FBh), or Stop (FCh) messages. ■ Connecting to a Personal Computer When a computer is connected, it can be used to control the P-250 or transfer P-250 data to or from the computer via MIDI. For example, you can edit the P-250's voices or store the P-250's voice data in the computer. There are three ways in which to connect your P-250 to a computer: 1 USB connection (the computer's USB port to the P-250 [USB] connector) 2 Serial connection (the computer's serial port to the P-250 [TO HOST] connector) 3 MIDI connection (the computer's MIDI interface or external MIDI interface to the P-250 MIDI [IN] and [OUT] connectors) TIP After you connect the P-250 to the computer, make sure that Local On/Off (pages 22 and 74) is set correctly according to the system environment. TIP You will need MIDI application software (sequencer, editor, etc.) compatible with your computer platform. (Refer to the separate Installation Guide.) NOTE When you connect the P-250 to a personal computer, first turn off the power to both the P-250 and the computer before you connect any cables and set the HOST SELECT switch. After you make connections and set the switch, turn on the power to the computer first, then to the P-250. NOTE If you are not using the connection between the P-250 and your computer, you must disconnect the cable from the [TO HOST] or [USB] connector. If the cable is connected, the P250 may not function properly. The connectors that can be used depend on the setting of the [HOST SELECT] switch. [HOST SELECT] Switch Setting Usable connectors MIDI MIDI [IN], [OUT], [THRU] connectors PC-2, Mac [TO HOST] USB [USB] Different computers require different connections, as follows. Setting the [HOST SELECT] switch Set the [HOST SELECT] switch according to the type of connected computer: • Macintosh: "Mac" (data transfer rate: 31,250bps, 1MHz clock) • Windows: "PC-2" (data transfer rate: 38,400bps) Connecting to External Devices NOTE If your system does not work properly with the connections and settings listed above, check your software operation manual and set the HOST SELECT switch to the proper data transfer rate. 1 USB connection (the computer's USB port to the P-250 [USB] connector) HOST SELECT MIDI PC-2 Mac USB [USB] connector USB cable P-250 Computer TIP About the USB driver: You must install the specified USB driver (YAMAHA USB MIDI Driver) in your computer before you can transfer data between the computer and the P-250. The YAMAHA USB MIDI Driver can be installed from the included "TOOLS for P-250" CD-ROM. The YAMAHA USB MIDI Driver supports the following OS versions: Windows 98, Windows 98SE, Windows Me, Windows 2000, Windows XP Mac OS 8.6 through 9.2.1 TIP You will need MIDI application software (sequencer, editor, etc.) compatible with your computer platform. CAUTION If you want to use a USB cable to connect the P-250 to your computer, you must connect the USB cable before you turn on the power to the P-250. Also, do not turn the power of the P-250 on or off while application software that uses USB MIDI is running. TIP The P-250 will begin transmission soon after the USB connection is made. NOTE When using a USB cable to connect the P-250 to your computer, make the connection directly without passing through a USB hub. CAUTION Depending on the state of your computer, the operations of the P-250 may become unstable. Do not use your computer in a way that causes it to become unstable. CAUTION If you turn the power of the P-250 on or off, or connect or disconnect the USB cable in the following states, problems will occur in the computer system, possibly causing it to freeze (hang up), or causing the P-250 to stop functioning: • While installing the driver • While starting or shutting down the operating system • While the computer is in Save Energy (Sleep) mode • While a MIDI application program is starting up. P-250 19 Basic Operation