Helpful Questions - NEC VERSA LX Service And Reference Manual

Problem
Parallel device does not work

Helpful Questions

Here are some helpful questions to ask when troubleshooting the notebook:
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Is there any external power source connected to the computer?
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Is the battery fully charged?
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Is the computer turned on and the Power LED activated?
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Is the LCD display switched to the external monitor?
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Are all cables and devices connected properly and securely?
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Are all needed device drivers installed properly?
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Have you checked the AUTOEXEC.BAT and CONFIG.SYS files for
errors?
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Is the Suspend Mode activated? Press any key or press the Power switch
to power on the system.
7-4 Troubleshooting
Quick Troubleshooting
Corrective Action
Check all connections.
Check if external device is turned on.
Check the device drive installation for any IRQ or
I/O address conflict.
Test another parallel device.
Check I/O controller chip on the main board for
any cold or loosed soldering.
Replace the main board.