Characters Are Distorted Or Incorrect; System Cooling Fans Do Not Rotate; Diskette Drive Activity Led Does Not Light; Cd-Rom Drive Activity Light Does Not Light - NEC EXPRESS5800/120Ld Service Manual

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Characters are Distorted or Incorrect

Check the following:

Are the brightness and contrast controls properly adjusted on the video display?

Refer to the documentation supplied with your video display.

Are the video monitor's signal and power cables properly installed?

If the problem persists, the video monitor may be faulty or it may be the incorrect

type. Contact your service representative for assistance.

Check the following:

Is AC power available at the wall outlet?

Are the system power cords properly connected to the power supplies and the AC

wall outlets?

Are the power connectors for the cooling fans connected? See the "Monitor Matrix"

table in Appendix C.

Is the front panel power on indicator lit?

If the switches and connections are correct and the power outlet is functioning, the

power supply has probably failed. Contact your service representative for assistance.

Check the following:

Are the diskette drive's power and signal cables properly installed?

Is the diskette drive properly configured?

Is the diskette drive activity light always on? If so, the signal cable may be plugged

in incorrectly.

If you are using the onboard diskette drive controller, use BIOS Setup to make sure that

the diskette drive controller is set to Enabled. For information about running BIOS

Setup, refer to the "Configuring Your System" chapter.

If the problem persists, there may be a problem with the diskette drive, system board, or

drive signal cable. Contact your service representative for assistance.

Check the following:

Is the power and signal cable to the CD-ROM drive properly installed?

Are all relevant switches and jumpers on the drive set correctly?

Is the drive properly configured?

Is the onboard IDE controller enabled?

Problem Solving 5-11

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