
APPENDIX
Troubleshooting
If you encounter a problem while using the
The buttons are not functional.
OCheck to see if the HOLD switch is set to the HOLD position (page 47).
OCheck to see if the rechargeable battery is installed properly (page 13).
Check if the 0 and 9 poles of the rechargeable battery are properly aligned.
OCheck to see if the rechargeable battery needs recharging (page 13).
OCheck to see if memory status is all right.
Format the memory media using the format function of the supplied Audio Manager software (page 46).
OIf the problem persists, remove the battery, then reinstall it to reset the player (page 13).
This often helps solve a problem.
Nothing or unusual action on the display
OCheck to see if the rechargeable battery needs recharging (page 13).
ORemove the battery, then reinstall it to reset the player (page 13).
This often helps solve a problem.
Various troubles with playback
•“NO FILE” is displayed on the MM- RX400 player. You may have failed to transfer music files to the
OCheck the USB cable connection and remaining battery power, and try to transfer music files to the
•Some parts of a data stream may be damaged because of power fluctuations while transferring music files.
OFormat the memory media using the format function of the supplied Audio Manager software (page 46).
•The player cannot play tracks that are stored on the MultiMediaCard.
OCheck that the MultiMediaCard has been inserted into the card slot properly (page 14).
Push the MultiMediaCard into the card slot until it is locked, holding it with the beveled corner to the right.
OCheck that you are not using a MultiMediaCard written to by another player.
You can only play a MultiMediaCard on the