Yamaha 501, Installation Manual

Accessory CD-ROM for Windows Installation Guide   

7

English

Troubleshooting

The driver cannot be installed.

• Is the USB cable connected correctly?

→

Check the USB cable connection. 

→

Disconnect the USB cable, then connect it again.

• Is the USB function enabled on your computer?

→

When you connect the instrument to the computer for 

the first time, if the “Add New Hardware Wizard” does not 
appear, the USB function on the computer may be disabled. 
Perform the following steps. 

1

Select [Start] 

→

 [Control Panel]* 

→

 [System] 

→

 [Hardware] 

→

[Device Manager] (for Windows XP), or select [Start] 

→

 [Settings] 

→

 [Control Panel] 

→

 [System] 

→

 [Hardware] 

→

 [Device Manager] 

(for Windows 2000), or select [Start] 

→

 [Control Panel] 

→

 [Device 

Manager] (for Windows Vista).

* Classic View only in Windows XP.

2

Make sure that no “!” or “x” marks appear at “Universal Serial 
Bus Controller” or “USB Root Hub.” If you see an “!” or “x” 
mark, the USB controller is disabled.

• Is any unknown device registered?

→

If driver installation fails, the instrument will be marked as an 

“Unknown device,” and you will not be able to install the driver. 
Delete the “Unknown device” by following the steps below.

1

Select [Start] 

→

 [Control Panel]* 

→

 [System] 

→

 [Hardware] 

→

[Device Manager] (for Windows XP), or select [Start] 

→

 [Settings] 

→

 [Control Panel] 

→

 [System] 

→

 [Hardware] 

→

 [Device Manager] 

(for Windows 2000), or select [Start] 

→

 [Control Panel] 

→

 [Device 

Manager] (for Windows Vista).

* Classic View only in Windows XP.

2

Look for “Other devices” in the menu “View devices by type.”

3

If you find “Other devices,” double-click it to extend the tree to 
look for “Unknown device.” If one appears, select it and click the 
[Remove] button.

4

Remove the USB cable from the instrument, and make the 
connection again.

5

Install the driver again. (See page 4.)

When controlling the instrument from your computer via USB, 
the instrument does not operate correctly or no sound is heard.

• Did you install the driver (page 4)?
• Is the USB cable connected correctly? 
• Are the volume settings of the instrument, playback device, and 

application program set to the appropriate levels?

• Have you selected an appropriate port in the sequence software?
• If you are using a Clavinova, check whether the Piano Lock is 

engaged or not.

• Are you using the latest USB-MIDI driver? 

The latest driver can be downloaded from the web site (page 4).

Playback response is delayed.

• Does your computer satisfy the system requirements? 
• Is any other application or device driver running?

Cannot suspend or resume the computer correctly.

• Do not suspend the computer while the MIDI application is 

running.

• You may not be able to suspend/resume normally, depending on the 

particular environment (USB Host Controller, etc.). Even so, simply 
disconnecting and connecting the USB cable will allow you to use 
the instrument functions again.

How can I remove the driver?

1

Start the computer and use the “Administrator” account to 
log on to Windows.

Close all applications and windows that are open.

2

Insert the included CD-ROM into the CD-ROM drive.

3

Select [Start] 

→

 [My Computer] (for Windows XP), or select 

[My Computer] (for Windows 2000), or select [Start] 

→

[Computer] (for Windows Vista).

4

Right-click the CD-ROM icon and select “Open” from the 
pop-up menu.

5

Select “USBdrvVista_” or “USBdrv2k_” folder 

→

“uninstall” folder 

→

 “uninstall.exe” file and launch the 

“uninstall.exe.” file.

Follow the on-screen instructions to uninstall the driver.

n

When using a 64-bit OS, click “uninstall_x64.exe.” from the 
“USBdrvVista_” folder.

n

If the “User Account Control” window appears, click [Continue].

6

When a message appears prompting you to restart the 
computer for proper deletion of the driver, restart the 
computer by following the on-screen instructions.

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