Problem Solving 5-11Characters are Distorted or IncorrectCheck 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 incorrecttype. Contact your service representative for assistance.System Cooling Fans Do Not RotateCheck the following:! Is AC power available at the wall outlet?! Are the system power cords properly connected to the power supplies and the ACwall outlets?! Are the power connectors for the cooling fans connected?! Is the front panel power on indicator lit?If the switches and connections are correct and the power outlet is functioning, thepower supply has probably failed. Contact your service representative for assistance.Diskette Drive Activity LED Does Not LightCheck the following:! Is the diskette drive's combined 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 pluggedin incorrectly.If you are using the onboard diskette drive controller, use BIOS Setup to make sure thatthe diskette drive controller is set to Enabled. For information about running BIOSSetup, refer to the “Configuring Your System” chapter.If the problem persists, there may be a problem with the diskette drive, system board, ordrive signal cable. Contact your service representative for assistance.CD-ROM Drive Activity Light Does Not LightCheck 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?