Keysight N5224B, Service Manual

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6-208 Keysight N5224B/25B Service Guide
Replaceable Parts
Replaceable Parts Listings
6-
W116 SR N5224-20023 1 A34 port 3 coupler to A28 mixer brick (C)
W117 SR N5224-20026 1 A35 port 4 coupler to A28 mixer brick (D)
W118 SR N5224-20025 1 A36 port 2 coupler to A27 mixer brick (B)
W203
c
SR
N5245-20195
1 RF cable, A25 HMA26.5 (top) to A28 mixer brick (top)
W210 F Refer to “Top Cables, All Cables—All Options, S/N Prefixes ≥ 6021” on page 6-28 .

- N5247-20138 1 Dust cap, A28 mixer brick termination
a. SR = semirigid coaxial cable; F = flexible coaxial cable
b. Some PNA models have newer model A27/A28 mixer blocks installed. A68/A69 3 dB attenuators are only applicable to
instruments with legacy 5087-7323/5087-6323 mixer bricks. The new 5087-7417 mixer brick have the 3 dB pads inte-
grated into the mixer brick assembly. Legacy A27/A28 mixer bricks use the 5245-20021 semi-rigid cable. New mixer bricks
use the N5245-20191 semi-rigid cable.
c. The N5245-20195 cable is used only with instruments that have a newer HMA26.5 installed. If your PNA has a legacy
5087-7765 HMA26.5 assembly installed, then this cable can be discarded. If you are unclear which HMA26.5 assembly your
PNA has installed, refer to Figure 7-19 on page 7-40 .
Reference
Designator
Type
a
Part Number Qty Description