Installation Note N5242-90003 23
Description of the Upgrade
Installation Procedure for the Upgrade
1.
Disconnect ALL ribbon cables (item
①
) and ALL wire harnesses (item
➁
)
from the A19 test set motherboard. Make sure they are labeled for
re-connection later.
2.
Remove connector hardware (item
③
) from 11 rear panel BNC connectors.
3.
Remove connector hardware (item
④
) from the rear panel TEST SET I/O
connector.
4.
Remove 10 screws (item
⑤
) from the A19 test set motherboard.
5.
Slide the A19 test set motherboard toward the front of the instrument until
the rear panel BNC connectors are free of the rear panel, then lift the
motherboard and remove it from the analyzer.
Figure 11
A19 Test Set Motherboard Removal
Remove the A20 IF Multiplexer Board
Refer to
for this part of this step of the procedure.
1.
Disconnect the ribbon cable (item
①
) from the A20 IF multiplexer board.
