Tektronix CSA7404B - Page 258

Removal and Installation Procedures
6-38
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
1. Assemble equipment and locate modules to be removed: Find the modules to
be removed in the locator diagram Internal Modules, Figure 6--8, on
page 6--21. Additional modules to be Removed:
H Trim (all)
H Bottom cover
H Left and Right covers
2. Orient the instrument: Set the instrument so its left side is down on the work
surface and its right side is facing you.
3. Remove the Front Power Distribution board: See Figure 6--23, on
page 6--39.
a. Grasp the Front Power Distribution board and pull it out from the
instrument to disconnect it from the following connectors: J2 Power
supply board and J102 Acquisition board.
b. Remove the Rear Power Distribution board: Grasp the Rear Power
Distribution board and pull it out from the instrument to disconnect it
from the following connectors: J610 Processor board, J1 Power supply
board, and J102 Acquisition board.
c. Remove the PA Bus Interconnect board: Grasp the PA Bus Interconnect
board and pull it out form the instrument to disconnect it form the
following connectors: J611 Processor board and J100 Acquisition board.
4. Reinstallation: Do in reverse step 3 to reinstall the front and rear power
distribution and the PA bus interconnect boards.
Front and Rear Power
Distribution Circuit
Boards