Hardware Maintenance Manual
Page 62
... update procedures" on IRQ11 2. Video card, if installed 2. System board 1. System board 1. See "Flash update procedures" on IRQ15 2. Video card, if installed 2. Video Ram 2. System board 1. Run Setup and re-test 2. Device on page 375 2. Diagnostic Error Code 001-278-XXX System IRQ11 failure 001-279-XXX System IRQ12... 001-282-XXX System IRQ15 failure 001-286-XXX 001-287-XXX 001-288-XXX System Timer failure 001-292-XXX System CMOS RAM error 001-293-XXX System CMOS Battery 001-298-XXX System RTC date/time update failure 001-299-XXX System RTC periodic interrupt failure...
... update procedures" on IRQ11 2. Video card, if installed 2. System board 1. System board 1. See "Flash update procedures" on IRQ15 2. Video card, if installed 2. Video Ram 2. System board 1. Run Setup and re-test 2. Device on page 375 2. Diagnostic Error Code 001-278-XXX System IRQ11 failure 001-279-XXX System IRQ12... 001-282-XXX System IRQ15 failure 001-286-XXX 001-287-XXX 001-288-XXX System Timer failure 001-292-XXX System CMOS RAM error 001-293-XXX System CMOS Battery 001-298-XXX System RTC date/time update failure 001-299-XXX System RTC periodic interrupt failure...
Hardware Maintenance Manual
Page 77
... read-write error 1-2-2-3 ROM BIOS check error 1-2-1 Programmable Interval Timer failed 1-2-2 DMA Initialization failed 1-2-3 DMA page register write/read failed 1-2-4 RAM refresh verification failed 4-4-4-4 1st 64K RAM test failed 1-3-2 1st 64K RAM parity test failed 2-2-3-1 Interrupt vector loading test failed 2-1-1 Secondary DMA register failed 2-1-2 Primary DMA register failed 2-1-3 Primary interrupt mask register failed...
... read-write error 1-2-2-3 ROM BIOS check error 1-2-1 Programmable Interval Timer failed 1-2-2 DMA Initialization failed 1-2-3 DMA page register write/read failed 1-2-4 RAM refresh verification failed 4-4-4-4 1st 64K RAM test failed 1-3-2 1st 64K RAM parity test failed 2-2-3-1 Interrupt vector loading test failed 2-1-1 Secondary DMA register failed 2-1-2 Primary DMA register failed 2-1-3 Primary interrupt mask register failed...
Hardware Maintenance Manual
Page 82
..." on page 51) If the voltages are correct, return here and continue with a known-good diagnostics diskette in the first 3.5-inch diskette drive 1. External Cache RAM h. Diskette Drive 3. External Device Self-Test OK? 2. External Device 3. hard disk 2. Any adapters c. Power-on the keyboard do not work 1. Diskette Drive Cable 4. Extended video...
..." on page 51) If the voltages are correct, return here and continue with a known-good diagnostics diskette in the first 3.5-inch diskette drive 1. External Cache RAM h. Diskette Drive 3. External Device Self-Test OK? 2. External Device 3. hard disk 2. Any adapters c. Power-on the keyboard do not work 1. Diskette Drive Cable 4. Extended video...