Ricoh A172 - Details about Operation Panel Self-Diagnosis; Main RAM Read;Write Test

3.4 Details about Operation Panel Self-diagnosis
Select a test. Then, select a mode.
3.4.1 Main RAM read/write test
Main RAM Read/Write Test
Testing ...
End
Test Count :
✱✱✱✱
Check Address :
✱✱✱✱✱✱✱✱✱
Number of times the system repeats
the test (for the continuous mode).
[End] key.
Pressing this key terminates the
test (for the continuous mode).
Message indicating that the test is
currently under way
Diagnostic test (title)
A172/A199 6-36 SM