SENSATION! (250-1650) Troubleshooting Faxback Doc. # 1236 This section provides checklists and other information to help correct problems you might encounter while using your computer. If you experience a problem not described in this section, or if the following suggestions do not correct your problem, call your computer dealer for assistance. BLANK SCREEN: * Are the system cords plugged in securely? * Is the computer turned on? * Is the monitor turned on? * Do you need to adjust monitor brightness and/or contrast? * Are all jumpers and switches set correctly? NO POWER-ON: * Is the power cord connected and plugged in securely? * Is the power actuator positioned properly in its mounting slots? NO KEYBOARD ACTION: * Is the keyboard cord plugged in securely? * Is the computer turned on? AUDIO FEEDBACK: * Is a microphone placed to near the computer's speaker or an amplified stereo speaker? * Is the volume of a microphone or speaker set to too high a level? SETUP PROBLEMS: * Are the system cords plugged in securely? * Are the expansion adapters properly seated? * Are all jumpers and switches set correctly? * Is all hardware information entered with the setup utility correct? * Is the battery properly installed? * If you have a hard drive, is it properly configured? * Did you connect and turn on all peripheral devices before turning on the computer? OPTION NOT WORKING: * Is the option expansion adapter properly seated? * Are the system cords plugged in securely? * Are all jumpers and switches set correctly? * Did you execute the setup utility after installing the option? * Is all hardware information entered with the setup utility correct? * Are all SIMMs seated securely in the sockets on the main logic board? PRINTER PROBLEMS: * Is the printer cable properly connected? * Is the printer configured as suggested in the printer documentation? * Was the parallel port information entered properly with the setup utility? * Is the printer ready (on-line)? * Are the paper and ribbon positioned properly? * Did you select the proper printer type for the applications you are running? CD-ROM DRIVE PROBLEMS: * Is there a DC in the drive? * Is the CD-ROM drive connected to CD-ROM drive adapter? * Is the audio cable properly connected to the phone line connectors? * Is the FAX/Modem adapter properly connected to the main logic board? * Is the Phone audio source enabled on the sound mixer control panel? COMPUTER VIRUSES: A computer virus is a program intended to destroy systems by corrupting data. Diskettes, networks, and modem transfers can carry viruses. When files from an infected computer are used on another system, the virus spreads. Problems might occur as soon as the virus invades the system, or the virus might wait for a preset time before becoming active. PREVENTION: Viruses spread through contact with other systems via diskettes, modems, and networks. To protect your system: * Use virus-checking software to scan new diskettes and new files before copying or using them. * Use only write-protected master copies to make backups. Make copies after you start up with a write-protected diskette. * Start up by pressing the reset button or the power button, not by pressing ++. * Always keep a write-protected copy of a startup diskette. If a virus infects your hard drive, you can still start up with this diskette. * Keep copies of files on write-protected diskettes. * Be wary of copied or pirated software. * Do not assume that legitimate, packaged software is free of viruses. * Contact your computer dealer, an electronic bulletin board service, or your public library for more information concerning virus protection. PROBLEM SOLVING: Virus symptoms can mimic simpler hardware problems, such as those caused by loose cable connections or poor SIMM contacts. Follow the other suggestions in this section before seeking repairs. If you think your computer has virus, use current virus-scanning programs to detect recent viruses. (smm 08/06/93)