HP 7925D Service Manual page 107

7925
2
Troubleshooting
Refer to door unlocked indicator
troubleshooting flowchart, fig. 4-14. If
trouble persists. check operation of
pack detector circuit and door closed
switch S7. If ok, check associated wir-
ing.
Refer to RUN/STOP switch trouble-
shooting flowchart, fig. 4-18.
Check current path from CRB switch
terminal with white wire to A4Pl-S. If
ok, replace switch.
Replace PCA-A4.
7311-21(3)A
Check current path between A4P2-1
and A8Pl-J for open circuit.
Figure 4-19. Spindle Rotation Troubleshooting Flowchart (Sheet 3 of 3)
4-33