Chapter 11 381
Assembly Replacement Procedures
A23 Disk Drive
Replacement
1. To install the disk drive board (3) into the mount, align the pins on
the mount with the hole and the slot on the board. Refer to Figure
11-46.
2. Install the disk drive (2) into the mount over the pc board. Ensure
the drive is located over the pin at the rear of the mount. Place the
top cover of the disk mount over the 4 pins.
3. Replace the flat flex cable to the disk drive and lock the connector to
secure the cable.
4. Refer to Figure 11-45. Slide the disk drive assembly into the disk
shield.
5. Replace the ferrite block around the flat flex cable.
6. Plug in the flat flex cable to the motherboard.
7. Using the T-10 driver, replace the 2 screws that attach the disk drive
cover to the deck. Torque to 9 inch-pounds.
8. Plug the front frame ribbon cable onto the motherboard.
9. Replace the RF section. Refer to the “RF Section E4440A, E4443A,
E4445A” replacement procedure.
10.Replace the front frame. Refer to the “Front Frame” replacement
procedure.
11.Replace the instrument top brace. Refer to the “Top Brace”
replacement procedure.
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