Keysight N5225-60107, Руководство пользователя

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22 Installation Note N5225-90107
Description of the Upgrade
Installation Procedure for the Upgrade
-
Figure 10 Location of Cable Tie and Clamp for W21 (N5245-20008)
* If the screws that attach the reference mixer switch to the test set deck
were loosened, torque these screws now to 9 in-lbs.
— W98 (N5245-20056) A46 port 1 receiver attenuator to A27 mixer brick
(A)
— W81 (N5245-20029) A29 port 1 receiver coupler to A38 port 1 source
attenuator
— W93 (N5245-20029)A32 port 2 receiver coupler to A41 port 2 source
attenuator
Install the Ribbon Cables
To see an image showing the location of these cables, click the Chapter 6
bookmarks “Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 417” in
the PDF Service Guide
1
. New parts are listed in Table 1 on page 7 .
Connect step attenuator ribbon cables as follows:
— (N5245-60006) A38 port 1 source step attenuator to A23 test set
motherboard J549
— (N5245-60006) A39 port 3 source step attenuator to A23 test set
motherboard J547
— (N5245-60006) A40 port 4 source step attenuator to A23 test set
motherboard J548
1. See “Downloading the Online PNA Service Guide” on page 5 .