DPM 9400 - User Manual
Appendix: Troubleshooting the DPM
If you have problems with your DPM, please try the following before you contact your vendor.
Nothing appears on the DPM display
•The batteries are not loaded properly: Verify that the polarity is correct.
•The batteries are dead: Change the batteries.
•The DPM is turned off: Turn the DPM on.
DPM warning: 
•The memory card cannot be read. Try a different memory card or a different type of memory card.
•The memory card is not formatted: Format the memory card via the DPM menu.
•One of the DPM buttons could be stuck: Make sure none of the buttons is stuck.
DPM is inactive
•The DPM is turned off: Turn the DPM on.
•The batteries are dead: Change the batteries.
Recording is not possible
•There is not enough space left on the memory card: Delete files from the memory card or use a new memory card.
•The memory card is not formatted: Format the memory card.
No sound during playback
•The volume is turned down (0): Turn the volume up.
•Earphones are plugged into the DPM: Unplug the earphones to listen to playback via the
Deleting files is not possible
•The file has been finished with EOL: Remove the EOL attribute from the file by pressing the L/P or EOL/P
•Your memory card, of the type SD, is 
): Remove write protection from the SD card.
Wrong file
•The wrong file is being played back: Open the correct file.
Connection to the PC is not possible
USB driver has not been installed properly
Solution: Check whether the USB drivers have been installed correctly. If you did not complete the installation of the USB driver or canceled the 'Unknown device detected' process the first time you connected the DPM to your PC. Proceed as follows:
1.Connect the DPM to your PC.
2.Go to the Start menu, Settings, Control Panel, System, Device Manager.
3.Look for an unknown USB device in the list.
4.Select the Unknown Device and click Remove.
5.Click OK and close the Control Panel window.
6.Disconnect the DPM and reconnect it again.
7.The Add New Hardware Wizard is started. Click Next.
8.Follow the instructions which appear on the screen. When the wizard detects the driver (USB Mass Storage Device), click Next to copy the driver to your PC.
9.On the last wizard page, click Finish to complete the installation.
Windows XP
When installing the DPM, the operating system automatically assigns a drive for the DPM. This drive appears as a 'removable disk' in the Windows Explorer. Sometimes, the drive letter assignment for the DPM conflicts with an existing drive letter mapping; this is why the DPM cannot be seen in the Windows Explorer. Additionally, SpeechExec Dictate displays the DPM status as DPM (disconnected).
Solution: Mount all network drives starting with drive letters Z, Y, X (in reverse alphabetical order).
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