Keysight Technologies N5244BU-619, Установочная инструкция

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16 Installation Note N5245-90113
Description of the Upgrade
Installation Procedure for the Upgrade
-
Service Guide 1 . To see an image showing the location of cables W55, W56,
and W57, click the Chapter 6 bookmark “Bottom RF Cables, 2-Port, Option
219” in the PDF Service Guide
1
.
1. Remove and discard the following gray flexible cables:
2. W62 (N5242-60025) A27 mixer brick (R1) to A24 IF multiplexer (P601)
3. W63 (N5242-60026) A27 mixer brick (R2) to A24 IF multiplexer (P801)
4. Leave the remaining gray flexible cables, the wire harnesses, and the
ribbon cables connected where possible. Any that are removed should be
labeled for reconnection later.
Step 7. Remove the A27 Mixer Brick Assembly
Remove the A27 mixer brick assembly from the PNA. For instructions, click the
Chapter 7 bookmark, “Removing and Replacing the A27 and A28 Mixer Bricks”
in the PDF Service Guide
1
.
Step 8. Assemble the A28 Mixer Brick Assembly
1. Follow the two instructions shown in Figure 1 . New parts are listed in
Table 1 on page 9 of this document.
Reference
Designator
Type
a Part Number Qty Description
W11 SR N5245-20036 1 A7 port 1 doubler to W12
W17 SR N5245-20036 1 A8 port 2 doubler to W18
W51 SR N5245-20101 1 A15 13.5 GHz (LO) synthesizer board J1207 to A25 HMA26.5
W55 SR N5245-20102 1 A7 port 1 doubler to W56
W56 SR N5245-20103 1 W55 to rear-panel EXT TSET DRIVE RF OUT (J6)
W57 SR N5245-20012 1 A27 mixer brick to EXT TSET DRIVE LO OUT (J5)
a. SR = semirigid coaxial cable.
1. See “Downloading the Online PNA Service Guide” on page 6 .