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Description of the Upgrade
Installation Procedure for the Upgrade
Step 18.Reinstall the A19 Test Set Motherboard
1. For instructions on reinstalling the board, click the Chapter 7 bookmark
2. Install the following new ribbon cables in the order listed. To see an image
Step 19. Replace the Front Panel's Lower Dress Panel
Before the front panel's lower dress panel can be replaced, the 2-port lower
dress panel and the lower front panel label must be removed from the front
panel assembly. Refer to
on page
1. Remove the 2-Port lower front panel label (item
2. Remove the 10 screws (save the screws for reuse) from the 2-port dress
Installation Note N5242-90122
— W41 (reuse) (N5242-20110 or N5222-20067) A11 13.5 GHz
synthesizer to A21 HMA26.5
* Route cable through deck cutout to A11 synthesizer board.
— W30 (reuse 6x) (E8356-20072 or N5222-20091) Front panel jumpers
"Removing and Replacing the A19 Test Set Motherboard" in the PDF
Service Guide
.
1
showing the location of these cables, click the Chapter 6 bookmark
"Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 417 (including
Option 029A" in the PDF Service Guide
page
9.
— Ribbon cable, N5242-60006 from J213 to A24 mixer brick (2)
— Ribbon cable (8121-0982), A19 test set motherboard J206 to A43
port 3 receiver attenuator
— Ribbon cable (8121-0982), A19 test set motherboard J207 to A44
port 4 receiver attenuator
— Ribbon cable (N5242-60008), A19 test set motherboard J202 to A35
port 3 source attenuator
— Ribbon cable (N5242-60008), A19 test set motherboard J203 to A36
port 4 source attenuator
9.
panel and remove the dress panel (item
1. See
"Downloading the Online PNA Service Guide" on page
1
. New parts are listed in
Figure 12 on page
34. New parts are listed in
➁
and
Table 1 on
Table 1
➀
).
➂
respectively).
7.
33
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