Compaq ML370 ProLiant ML370 Maintenance and Service Guide - Page 83
399, Keyboard Test Error Codes, Parallel Printer Test Error Codes, Table 3-5
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Diagnostics and Troubleshooting 3-29 300-399, Keyboard Test Error Codes The 300 series of diagnostic error codes identifies failures with keyboard and system board functions. Table 3-5 Keyboard Test Error Codes Error Code 301-xx 302-xx 303-xx 304-xx Description Keyboard short test, 8042 self-test failed. Keyboard long test failed. Keyboard LED test, 8042 self-test failed. Keyboard typematic test failed. Recommended Action 1. Check the keyboard connection. If disconnected, turn off the computer, connect the keyboard, power up, and retest. 2. Replace the keyboard and retest. 3. Replace the system board and retest. 400-499, Parallel Printer Test Error Codes The 400 series of diagnostic error codes identifies failures with parallel printer interface card or system board functions. Table 3-6 Parallel Printer Test Error Codes Error Code 401-xx 402-xx 403-xx 498-xx Description Printer failed or not connected. Printer data register failed. Printer pattern test failed. Printer failed or not connected. Recommended Action 1. Connect the printer and retest. 2. Check the power to the printer and retest. 3. Install the loopback connector and retest. 4. Check the switch on the serial/parallel interface board (if applicable) and retest. 5. Replace the serial/parallel interface board (if applicable) and retest. 6. Replace the system board and retest.