Keysight Technologies N5244/5B Service Manual page 244

Replaceable Parts
Replaceable Parts Listings
Table 6-1 Part Number Listing by Reference Designator (Continued)
Reference Description
Designator
A56 Noise bypass switch, port 1 (Option 029 only)
A57 Noise bypass switch, port 2 (Option 029 only)
A58 Bridge (Option 029 only)
A59 Noise receiver (downconverter) – (Option 029 only)
Tuner (Option 029 only)
c
A64
REF 1 RCVR R1 IN 3 dB attenuator (PNA models with s/n
b
A68
prefix <6021 and all serial number prefixes with Options
210/410 only)
REF 4 RCVR R4 IN 3 dB attenuator (PNA models with s/n
b
A69
prefix <6021 and all serial number prefixes with Options
210/410 only)
A70 LFE board - 4-Port
A75 LFE board - 2-Port
A71 Port 1 bias combiner
A72 Port 3 bias combiner
A73 Port 4 bias combiner
A74 Port 2 bias combiner
a. The A26 splitter (5067-4086) and N5245-20013, N5245-20022, N5245-20023, N5245-20101, and N5245-20150 cables
are only used with a legacy HMA26.5 p/n: 5087-7765. If you are unclear which HMA26.5 assembly your PNA has installed,
refer to Chapter 7 Repairs and
option-model in Chapter 6
Configuration, Serial Number Prefix <6021" on page
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
integrated 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. Shipping box reads "2 port ECAL HF w/delta launch".
6-10
Figure 7-20 on page 45
"2-Port Configurations, Serial Number Prefixes <6021" on page 6-34
Location
Your option set determines which
assemblies are in your PNA. Refer to
"Bottom Assemblies and Cables by
Option Set:"
page 6-11.
Your option set determines which
assemblies are in your PNA. Refer to
"Bottom Assemblies and Cables by
Option Set:"
page 6-11.
AND
"Top Assemblies and Cables, All
Options:" on page 6-11
Your option set determines which
assemblies are in your PNA. Refer to
"Bottom Assemblies and Cables by
Option Set:"
page 6-11.
and for details on A26 splitter and cabling , refer to your
6-129.
Keysight N5244B/45B Service Guide
in Table 6-2 on
in Table 6-2 on
in Table 6-2 on
and "4-Port