GE MEDICAL SYSTEMS CT 9800 QUICK SYSTEM
Rev. 9 Direction 18000
4-3-7
3-1 Power Checks (Continued)
ILLUSTRATION 4-3-5
DISK DRIVE BREAKERS
d. Turn on the DC Power Switch on the front control panel, Illustration 4-34. The CHECK LED should go
out, and the ON LED should light. If the CHECK LED stays lit or lights again, this indicates a power
supply fault or blown fuse.
e. At the front of the drive, open the pack cover and check that all the heads are on the loading ramps and
fully retracted.
f. Close pack cover and observe spindle thru the window in the pack cover. Press the START switch on the
drive control panel. When the spindle has started to rotate, press the STOP switch. The spindle should
have been rotating counter-clockwise (CCW). If the spindle rotates clock-wise (CW), the phasing on the
incoming 3-phase power to the drive has probably been reversed and must be corrected so that it is
correct both at the wall outlet, and inside the drive. Note that the spindle drive belt may come off if the
spindle rotates CW for long. To correct this condition ensure the System Power and load distribution
check out procedure (Section 2-4 of this chapter) is proper.
Note: For 50 Hz systems. If the
˘A, ˘B, and ˘C are properly connected within the power module
(PDU), check the power connections within the Disc Drive itself, shown in Illustration 4-3-5B.
g. Turn on disk adapter power switch (refer to Illustration 4-3-1 for location).
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