24 Installation Note N5242-90003
Description of the Upgrade
Installation Procedure for the Upgrade
-
2.
Disconnect ALL gray flexible RF cables (item
➁
) from the A20 IF
multiplexer board. Make sure they are labeled for re-connection later.
3.
Remove connector hardware (item
③
) from five rear panel RF connectors.
4.
Remove connector hardware (item
④
) from the rear panel PULSE I/O
connector.
5.
Remove four screws (item
⑤
) from the A20 IF multiplexer board.
6.
Slide the A20 IF multiplexer board toward the front of the instrument until
the rear panel connectors are free of the rear panel, then lift the board and
remove it from the analyzer.
Figure 12
A20 IF Multiplexer Board Removal
Step 11. Install the Bulkhead Connectors and Jumpers on the Rear
Panel
1.
Remove hole plugs from the following rear panel connector openings:
—
PORT 1—COMB ARM IN (J9) and COMB THRU IN (J10) and SW SRC
OUT (J11)