HP Portable 486 Compaq Portable 486c Personal Computer Maintenance and Service - Page 32
Table 3-8. Serial Test Error Codes, Serial Port Test; COM1 set
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3. Check and/or replace drive cable and retest. 4. Replace the I/O board and retest. 699 - 00 Diskette drive/media ID 1. Replace the media. error, rerun COMPAQ 2. Run COMPAQ EISA EISA Configuration utility Configuration utility. Table 3-8. Serial Test Error Codes Error Recommended Code Description Action 1101 - 01 Serial Port Test: UART Replace the I/O board and DLAB bit failure retest for error codes 1101 - xx through 1101 - 02 Serial Port Test; line 1109 - xx. input or UART fault 1101 - 03 Serial Port Test; address line fault 1101 - 04 Serial Port Test; data line fault 1101 - 05 Serial Port Test; UART control signal failure 1101 - 06 Serial Port Test; UART THRE bit failure 1101 - 07 Serial Port Test; UART DATA READY bit failure 1101 - 08 Serial Port Test; UART TX/RX buffer failure 1101 - 09 Serial Port Test; INTERRUPT circuit failure 1101 - 10 Serial Port Test; COM1 set to invalid interrupt 1101 - 11 Serial Port Test; COM2 set to invalid interrupt Error Recommended Code Description Action 1101 - 12 Serial Port Test; DRIVER/ Replace the I/O board and RECEIVER control signal retest for error codes failure 1101 - xx through 1109 - xx. 1101 - 13 Serial Port Test; UART control signal interrupt failure