Roland R-88 用户手册

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页码 80
Troubleshooting
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Problems with the Computer
Problem
Cause
Page
R-88 not recognized when 
connected to your computer 
via USB
The R-88 will not be recognized by your computer if you connect it when the “MENU” screen is displayed, or during 
playback or recording. Please disconnect the USB cable, and try again.
Cannot close the connection 
with the R-88
When using Windows and if Explorer or any other software referencing the SD memory card is open when you attempt 
to close the USB connection between the R-88 and your computer, the error message “An error occurred while removing 
USB mass storage device — Unable to close device ‘unspecified volume.’  Please execute Stop Device again later.” will 
appear, and you will be unable to disconnect the R-88. Close all software or windows that are referencing the SD memory 
card. Then execute “Safely Remove Hardware” once again.
USB flash drive connected in 
the R-88 is not visible from the 
computer
The USB flash drive connected in the R-88 cannot be viewed from the computer.
Problems related to the audio 
interface
Please refer to the README for the driver, which can be found on the Roland web site.
Problems with R-88 Operation
Problem
Cause
Page
Power won’t turn on
Make sure that the AC adaptor or an external power supply is correctly connected. If you’re using batteries, make sure that 
the battery case is correctly installed, and that the batteries are oriented correctly, without any batteries out of place. It 
may be that the batteries have run low; install fresh batteries.
Check whether the [HOLD] switch is off. If it is on, the panel [POWER] switch will be inoperable.
The power will not turn on if the external power supply voltage is too high. The R-88 is compatible with 9–16 V.
If the R-88’s power can’t be switched on even though there’s no problem with the AC adaptor or batteries, it may have 
malfunctioned. Please contact nearest Roland Service Center as listed on the “Information” sheet.
Display becomes dim
The display will be dimmed if no operation is performed during the specified Display Timer interval.
Your settings return to their 
original value
When you reset the R-88 to its factory settings, all settings made using the “MENU” screen or the like will return to their 
original values. Please make the desired settings again.
If the R-88’s power is turned off without using its power switch (e.g., by a battery failure or disconnected AC adaptor), the 
settings you made will return to their original values. Please make the desired settings again.
Project names and folder names 
in the Home screen or Finder 
are garbled
The characters that are not “Available characters” are not displayed properly. In addition, there are cases when RENAME 
will not be performed correctly.
Power turns off unexpectedly
Depending on the AUTO OFF setting, power will turn off automatically if no operation is performed for a specified length 
of time.
Check to make sure that the setting for the end voltage (external) is appropriate.
Check to make sure that the setting for the type of batteries (alkaline, rechargeable Ni-MH batteries) to be used is correct.
If you’re using batteries or external source, power will turn off when the batteries run low. Please install fresh batteries.
Internal clock is reset
If the AC adaptor or external power source is connected, or if batteries are installed, the internal clock will obtain its power 
from those sources. If several days pass with the batteries removed and the AC adaptor disconnected, the internal clock 
will return to its default setting. When you turn on the power in this state, the message “Clock is Initialized” will appear. If 
this message appears, please reset the date and time.
Touch panel does not perform 
as expected
Carry out adjustment of the panel.
The message “batteries low” 
appears while AC adaptor is 
being used
Check to make sure that the External power supply select switch (p. 7) is set to “ADAPTOR.”
Footswitch does not work as 
expected
Refer to “Using a Footswitch to Remotely Control Recording or Playback,” and verify that the connection is correct. Also 
verify that the mode and polarity switches are set correctly. The FS-5L cannot be used.