HP 7925D Service Manual page 106

Troubleshooting
Replace PCA·A8 and recheck A8P1-J.
7925
Yes
Replace PCA-A 10.
Yes
Replace PCA-A9.
Yes
Replace spindle motor. (Refer to para.
5-24.l
7311-21 (2)8
4-32
Figure 4-19. Spindle Rotation Troubleshooting Flowchart (Sheet 2 of 3)