Keysight N5224B, Service Manual

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Keysight N5224B/25B Service Guide 6-205
Replaceable Parts
Replaceable Parts Listings
Bottom Assemblies, Standard 4-Port Configuration, Option 400, S/N
Prefix ≥ 6021
Reference
Designator
Part Number
a
Qty Description
A23 N5245-60157
Was N5247-60001
1 Test set motherboard
A24
N5240-60062
b
Was N5240-60045
1
IF multiplexer board
c
A25 N5240-60101
Was: 5087-7765
1 LO Multiplier/amplifier 26.5 (HMA26.5)
A27
A28
5087-7417
5087-6417
Was: 5087-7323
5087-6323
2 Mixer brick
A29
A30
A31
A32
5087-7760 4 Test port 1 receiver coupler
Test port 3 receiver coupler
Test port 4 receiver coupler
Test port 2 receiver coupler
A33
A34
A35
A36
5087-7793 4 Test port 1 coupler
Test port 3 coupler
Test port 4 coupler
Test port 2 coupler

N5240-60058 2 Front panel LED board
a. Part numbers in italic typeface are for rebuilt exchange assemblies. Refer to
“Rebuilt-Exchange Assemblies” on
page 6-4
.
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. 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.