Table 5-1. Computer/Expander Troubleshooting Procedures
Procedure
What MUST Function
Inoperative Unit
Nothing
Live Unit
Power Supply
Motherboard
Functional Unit
Computer:
Power Supply
Part of processor
Part of motherboard
Top 16K of RAM
DIO-II Bus
Some inputs from keyboard
Output to operate monitor
Bus Expander:
Power Supply
Part of motherboard
One accessory card
Troubleshooting
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