NEC 78K0/L 3 - See it! Series, Руководство пользователя

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78K0/Lx3 - See it!
User’s Manual U18759EE2V0UM00
68
10. TROUBLESHOOTING
In driver installation, recognition based on Plug and Play is disabled.
Cause:
The USB connector may not be inserted normally into the USB port of the personal computer.
Action:
Check that the USB connector is inserted fully into the USB port of the personal computer.
Alternatively, disconnect the USB connector, then insert the USB connector again after a while.
The driver file cannot be found at a specified location.
Cause:
The WriteEZ3 FLASH programming software may not be installed correctly.
Action:
Install the GUI software again by referring to
CHAPTER 7 Software Installation .
In checking by Device Manager, "USB Serial Port" or "USB High Speed Serial
Converter" is not displayed. Alternatively, the "!" or "
×
" is prefixed.
Cause:
The USB connector may not be inserted normally into the USB port of the personal computer.
Action:
Check that the USB connector is inserted fully into the USB port of the personal computer.
Alternatively, disconnect the USB connector from the USB port, then insert the USB connector
again after a while.
Cause:
The driver may not be installed correctly.
Action:
<1>
When this product is connected to the personal computer, right-click the driver marked
with "!" or "
×
".
Click Erase when displayed.
<2> On Device Manager, execute [Hardware Modification Scan].
<3> Install the driver again with Plug and Play.
Cause:
The device may not be recognized (in the case of connection with the USB hub).
Action:
Try the following:
•
Disconnect the USB connector, then insert the USB connector again.
•
Connect the USB connector to another port of the USB hub.
If the same symptom occurs, do not use the USB hub, but directly connect the connector to the
USB port of the personal computer.
When this product is connected with a personal computer, the "Add New Hardware
Wizard" screen is displayed.
Cause:
If the USB connector of this product is not inserted into the USB port used at the installation
time but into another USB port, this product may be recognized as a new hardware item.
Action:
Install the driver by referring to
CHAPTER 7.5 USB Driver Installation .