IBM 8681 Hardware Maintenance Manual - Page 177
Beep/Symptom, FRU/Action, I/O Function Card, I/O Board, Battery, see Battery, replacement
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Page 177 highlights
Beep/Symptom 2-1-1 (Secondary DMA register failed) 2-1-2 (Primary DMA register failed) 2-1-3 (Primary interrupt mask register failed) 2-1-4 (Secondary interrupt mask register failed) 2-2-1 (Interrupt vector loading failed) 2-2-2 (Keyboard controller failed) 2-2-3 (CMOS power failure and checksum checks failed) 2-2-4 (CMOS configuration info validation failed) 2-3-1 (Screen initialization failed) 2-3-2 (Screen memory failed) 2-3-3 (Screen retrace failed) 2-3-4 (Search for video ROM failed) 2-4-1 (Video failed, screen believed operable) 3-1-1 (Timer tick interrupt failed) FRU/Action 1. I/O Function Card 2. I/O Board 3. Processor Controller Board 4. Processor Daughter Board 1. I/O Function Card 2. I/O Board 3. Processor Controller Board 4. Processor Daughter Board 1. I/O Board 2. Processor Controller Board 3. Processor Daughter Board 1. I/O Board 2. Processor Controller Board 3. Processor Daughter Board 1. I/O Board 2. Processor Controller Board 3. Processor Daughter Board 1. I/O Function Card 2. Keyboard 1. Battery, see "Battery replacement" on page 49. 2. I/O Function Card 3. I/O Board 1. Battery, see "Battery replacement" on page 49. 2. I/O Function Card 1. I/O Function Card 1. I/O Function Card 1. I/O Function Card 1. I/O Function Card 1. I/O Function Card 1. I/O Function Card 2. I/O Board Netfinity 8500R - Type 8681 169
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