Spindle Rotation Troubleshooting Flowchart - HP 7925D Service Manual

7925
NOTES:
1. Refer to the following diagram for
circu~
details.
• Spindle Rotation System Functional Diagram. fig. 4·25.
2. PCA's associated with spindle rotation system malfunctions
include:
• Drive control PCA-A4.
• Spindle logic PCA-AB.
• Power and motor regulator PCA-A9.
• Encoder PCA-Al0.
Refer to DOOR UNLOCKED indicator
troubleshooting flowchart. fig. 4·14.
---- --1"' - -
A_ft_er_3_5_s_ec_o_nd_d_e_la_
Y
_:- - -
Refer to DRIVE READY indicator
troubleshooting flowchart. fig. 4·17.
Troubleshooting
Set power ON/OFF switch to OFF
and back to ON.
No
7311-21(1)8
Figure 4-19. Spindle Rotation Troubleshooting Flowchart (Sheet 1 of 3)
4-31