IBM 68666AU User Guide - Page 109
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Code 20x 301 or 303 601 602 604 662 762 11xx Description A memory error occurred. A keyboard error occurred. A diskette drive or controller error occurred. The diskette IPL startup (boot) record is not valid. An unsupported diskette drive is installed. Diskette drive configuration error A math coprocessor configuration error occurred. A serial port error (xx = serial port number) occurred. Action Go to "IBM Enhanced Diagnostics" on page 109 for instructions for running diagnostics. 1. Make sure the keyboard is properly connected. 2. If the keyboard is properly connected, have the computer serviced. 1. Go to "IBM Enhanced Diagnostics" on page 109 and if possible follow the instructions to run the Enhanced Diagnostics. 2. Have the computer serviced. 1. The diskette might be defective. Try another diskette. 2. If the problem persists, have the computer serviced. 1. Go to "IBM Enhanced Diagnostics" on page 109 and if possible follow the instructions to run the Enhanced Diagnostics. 2. Have the computer serviced. 1. Go to the configuration procedure and verify the diskette drive configuration. 2. Run the diagnostics program for the diskette drive. See "IBM Enhanced Diagnostics" on page 109. 3. If the problem persists, have the computer serviced. Have the computer serviced. Have the computer serviced. Chapter 6. Troubleshooting 93
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