NEC Versa TXi Series Service Manual page 80

Problem or Symptoms
Bluetooth does not work.
USB port does not work
Audio components do not
work
Diagnostics
Corrective Actions
Check if Bluetooth is enabled in the BIOS Setup Advanced menu.
Check if the Bluetooth driver is installed.
Check if the Bluetooth board cable is firmly plugged into its connector
on the board and P28 on the main board.
Check that the hardwired cable between the Bluetooth board and
antenna board is not broken.
Replace the Bluetooth board and antenna board assembly.
Replace the main board.
Check if the USB controller in BIOS Setup is enabled.
Check the USB device connection. Unplug and reseat the device.
Check if the USB port driver and the USB device driver are installed.
Replace the USB device or contact the USB device manufacturer for
support.
Replace the USB board.
Check that the external connections and the volume mixer are set
properly.
Check if the audio source (CD, tape, etc.) is faulty.
Check if the audio driver is installed.
Check if the internal connections for speaker and microphone are
working.
Check the sound board, cables, and connections.
Replace the main board.
Troubleshooting 6-9