Epson CW3S16 Operation Manual page 189

Note
Entering "N" in the Proceed field will cause the cursor to
return to the Disk Drive Type field.
Hard Disk Read/Verify Test
This test performs sequential and random read and verify
operations on the cylinder and head range specified in the
Hard Disk Read/Verify Test Information box.
To perform the Hard Disk Read/Verify Test:
At the Hard Disk Menu, highlight "Hard Disk Read/Verify
Test." Press < ENTER> . Fill in the appropriate response for
each of the following fields in the Hard Disk Read/Verify Test
information box:
E-26 Advanced ROM Diagnostics
Figure E-9. Performing the Seek Test