Keysight Technologies N5244/5B Service Manual page 443

Replaceable Parts
Replaceable Parts Listings
Reference
Part Number
Designator
N5240-60101
c
A25
Was: 5087-7765
Was 5087-7711
A27 5087-7417
A28 5087-6417
Was: 5087-7323
5087-6323
A29 5087-7760
A30
Was 5086-7658
A31
A32
A33 5087-7793
A34
Was 5087-7724
A35
A36
A37 5087-7759
Was 5087-7271
A69
08490-60010
N5240-60058

Was N5240-60051
a. Part numbers in italic typeface are for rebuilt exchange assemblies. Refer to
page 6-5.
b. All new units built after August 2009, no longer use the N5242-60031 cable that was attached to connector P1001 and
Source 2. As a result of this change, the IF multiplexer boards have had their P1001 connectors removed. If your instrument
contains a N5242-60031 cable, remove it from your instrument.
c. 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
d. Only applies to instruments with legacy 5087-7323/5087-6323 mixer bricks. The new 5087-7417 mixer brick has the 3 dB
pads integrated in the mixer brick.
Keysight N5244B/45B Service Guide
Qty Description
a
1 LO Multiplier/amplifier 26.5 (HMA26.5)
2 Mixer brick
4 Test port 1 reference coupler
Test port 3 reference coupler
Test port 4 reference coupler
Test port 2 reference coupler
4 Test port 1 coupler
Test port 3 coupler
Test port 4 coupler
Test port 2 coupler
1 Reference mixer switch
1 3 dB pad (For A28 mixer brick R4)
d
2 Front panel LED board
Figure 7-20 on page 45
"2-Port Configurations, Serial Number Prefixes <6021" on page 6-34
"Rebuilt-Exchange Assemblies" on
and for details on A26 splitter and cabling , refer to your
6-129.
and "4-Port
6-209