Specifications

56 RA7x/SA7x Pocket Reference Guide
C6—PLO Failure
Error Description: The VCO clock is not in sync or
has fallen out of sync with the rotating disk.
FN: 48—plo.lck.flt.—PLO lock failure
Most Probable Cause: HDA, ECM
C9—Analog Loop Failure
Error Description: There are three possible
conditions that result in analog loop failure:
• The I/O processor could not complete a write to
the GASP gate array mailbox.
• The I/O processor could not complete a read of
the GASP gate array mailbox.
• The DSP could not complete the analog test or it
completed the test but with incorrect results. This
consists of three possible conditions:
– The DSP timed out waiting for the A/D
convert to complete.
– The DSP received an unexpected interrupt.
– The DSP found one or more of the
conversions were out of tolerance.
FN: 85—inc.exc.rsp.—incorrect DSP execute response
FN: EF—inv.dsp.dgn.—invalid DSP diagnose response
Most Probable Cause: ECM
CD—Track Count Error
Error Description: While in the course positioning
mode, both gray codes (gray code X and gray code
Y) changed during the same servo frame or one gray
code changed on two consecutive frames.
FN: 49—trk.ctr.flt.—track counter—gray codes out of
quad.
Most Probable Cause: ECM, HDA