Digital Equipment RW504-ZA, Service Manual

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Verify that the drive and drive plate are properly aligned and that none of
the screws are catching on the raised part of the drive plate.
• The front of the drive mechanism faces towards the leadscrew assembly.
• The tabs on the drive plate slide on rails at the bottom of the disk library
chassis.
• The back of the drive mechanism must be lifted slightly after it has been
inserted into the chassis so that the notch on the drive plate fits into the slot
at the front of the chassis. (See Figure 5–11.)
• Refer to Section 5.4.3 to reattach the front bezel.
• Refer to Section 5.4.1 to replace the access panel and top cover.
• Verify that the drive contains the correct firmware revision.
5.4.8 Replacing the Interconnect PCA
1. Follow the service access procedure at the beginning of this chapter.
2. Disconnect the optical sensor connector.
3. Disconnect the drive interface cable.
4. Disconnect the sensor cable from the controller PCA, if it has not already
been disconnected.
5. Remove the two T-9 screws (located closest to the drive mechanism) and
loosen the third T-9 screw that secures the interconnect PCA to the chassis
(See Figure 5–13).
6. Slide the PCA out of the library.
5–22 Removal and Replacement