Preparing The System For Diagnostic Testing - NEC LS2400 User Manual

Preparing the System for Diagnostic Testing

To prepare the system for diagnostic testing, perform the following:
Note: Before disconnecting any peripheral cables from the system,
turn off the system and any external peripheral devices. Failure to do
so can cause permanent damage to the system and/or the peripheral
devices.
1. Turn off the system and all external peripheral devices. Disconnect all
devices from the system except the keyboard and video monitor.
2. Make sure the system power cord is plugged into a properly grounded AC
outlet.
3. Make sure your video display monitor and keyboard are correctly
connected to the system. Turn on the video monitor. Set its brightness and
contrast controls to at least two-thirds of their maximum ranges (refer to
the documentation supplied with your video display monitor).
4. If the operating system normally loads from the hard disk drive, make sure
there is no diskette in drive A. Otherwise, place a diskette containing the
operating system files in drive A.
5. Turn on the system. If the power indicator LED does not light, refer to
"Power Light Does Not Light" found later in this chapter.
5-6 Problem Solving