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Assembly Replacement ESG Family Signal Generators
Digital Card Cage Boards
5-58 Service Guide
Digital Card Cage Boards
Use this procedure to remove any of the following assemblies: (See Figure 5-36.)
• A5 Dual Arbitrary Waveform Generator Board
• A6 Bit Error Rate Test Board
• A7 Baseband Generator Board
• A8 Data Generator Board
• A21 Demodulator Board
Tools Required
• T-10 TORX screwdriver
• long nose pliers
Removal
1. Remove the instrument cover. (Refer to the “Instrument Cover” replacement procedure
on page 5-64.)
2. Remove the top cover by removing the 11 screws that secure it.
3. Disconnect all of the cables and harnesses from the board.
4. Pull up on the board to remove it from the CPU/motherboard connector.
Replacement
1. Reverse the removal procedure and do the following:
• Refer to replaceable parts chapter for your signal generator model to verify that the
cables are reconnected in the correct locations. (Refer to Chapter 3 for the ESG-A
and ESG-D series, refer to Chapter 4 for the ESG-AP and ESG-DP series.)
• Torque all T-10 TORX screws to 9 in-lbs.