Troubleshooting (cont'd)

 

PROBLEM

RESOLUTION

 

 

 

 

 

Nothing

Try recharging the main battery pack or

 

appears on the

replacing the sub-battery.

 

screen. (cont'd)

 

 

 

 

Check that the ROM bay cover is properly

 

 

secure.

 

A low battery

Recharge the main battery.

 

message

 

 

 

appears.

 

 

 

When using a

Connect the AC adapter to the unit when

 

PC card, such

using PC cards that require large amounts

 

as a modem,

of energy.

 

the unit powers

 

 

 

off.

 

 

 

The AC adapter

Make sure that the main battery and back-

 

doesn't work.

up battery are installed.

 

 

Check that the AC adapter connections are

 

 

secure.

 

 

Verify that the AC outlet being used is

 

 

working. Do this by plugging in another

 

 

electric device, such as a lamp.

 

The keyboard

Reset the unit.

 

doesn't

 

 

 

respond.

Check that you have not set the "disable

 

 

keyboard" of a handwriting recognition

 

 

application.

 

The serial port

Check that the cable connections are

 

doesn’t work.

secure.

 

The IrDA port

Check that nothing obstructs the path

 

doesn’t work.

between the transmitting and receiving IR

 

 

ports.

 

 

Check the procedure that you are using

 

 

against the instructions in “Transferring

 

 

Data” in the software user’s guide.

 

 

 

 

 

 

 

 

4-2 Troubleshooting

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Image 61
NEC 750C manual Troubleshooting contd