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Chapter 7. Troubleshooting

The table below summarizes errors to be checked carefully before you determine them to be a fault.

7.1 Errors That Occur When Writing to PROM

7.1.1 When Newly Purchased

7.1.2 Previously Written Normally

Cause Remedy
Is the adapter attached to the correct position of the PROM
programmer?
Is the MCU attached to the correct position?
Is the area specification set correctly?
Is the correct device selected?
The IC socket of the PROM programmer may be stained. The
socket needs replacing.
The PROM programmer connector at which the PROM
programmer is contacted may be stained. Clean it with
alcohol, etc.
See page
Programming adapter
PROM programmer
Contact failure
10
11
11
9
-
-
Cause Remedy
Is the adapter attached to the correct position of the PROM
programmer?
Is the MCU attached to the correct position?
Is the area specification set correctly?
Is the correct device selected?
The IC socket of the PROM programmer may be stained. The
socket needs replacing.
See page
Programming adapter
PROM programmer
Contact failure
10
11
11
9
-