Removal and Installation Procedures
TLA5000 Series Service Manual
6-33
Replacing the Acquisition Board
1. Remove the trim and covers by following the procedure on page 6--7.
2. Remove the bottom covers.
3. Set the instrument so its top is down on the work surface and its bottom is
facing up.
4. Refer to Figure 6--18 on page 6--34 and remove the 12 T-15 Torx-drive
screws that secure the Acquisition board to the chassis.
5. Using a 9/16 inch open-end wrench, remove the nuts and washers from the
four BNC connectors on the front panel.
6. Grasp the Acquisition board on the left-rear edge near the multi-pin
connector and the right side and carefully pull the board up to disconnect the
multi-pin connector and to clear the guide pin. Once you have cleared the
connector, remove the board from the chassis.
7. When installing the Acquisition board, guide the BNC connectors into the
holes in the front panel. Then set the board in place and align the multi-pin
connector halves using the guide pin. Gently press the board into place to
seat the connector between the Interface board and the Acquisition board.
8. Install the 12 T-15 Torx-drive screws to secure the Acquisition board to the
front chassis.
9. Reinstall the nuts and washers on the four BNC connectors and tighten the
nuts to 8 in-lbs.
10. Install the covers and trim following the procedures that start on page 6--6.
Tighten the T-15 Torx-drive screws to 8-in lbs.
11. Verify the operation by following the procedure on page 6--35.
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