STEP 3. Apply power to the disk drive. The LED flashes to indicate a faulty
condition. The number of flashes determine which component is
faulty. The following lists the components and their respective
number of flashes.
Flash Code Component
1 zero page, U3B, U3D
2 ROM U5F
3 ROM U5H
4 RAM U3B, U3C, U3D, U3E
NOTE
If the problem persists, try disconnecting the other
devices attached to the IEEE bus. This should
assure that a problem related to another device does
not affect the disk drive.
Figure 3. Position for Diskette Insertion
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