Keysight Technologies N5244/5B Service Manual page 254

Replaceable Parts
Replaceable Parts Listings
Referenc Serial
e Number Prefixes
Designat
a
Affected
or
A6 Not used.
A7 All prefixes
A8 All prefixes
A9 All prefixes
A10 All prefixes
A11 Not used
A12 All prefixes
A13 All prefixes
A14 5201 and above
5150 and below
A15 5201 and above
5150 and below
A16 5201 and above
5150 and below
6-20
Part Number Qty
5087-7349 1
Was 5087-7318
5087-6349
5087-7349 1
Was 5087-7318
5087-6349
1
c
N5245-60125
Was: N5242-60098
(Option 029 only)
N5245-60124
(Option 029 only)
5087-7780 1
Was 5087-7327
5087-6780
5087-7349 1
Was 5087-7318
5087-6349
5087-7349 1
Was 5087-7318
5087-6349
N5240-60069 1
N5240-60061
Was N5240-60042
N5240-60074 1
Was N5242-60150
b
N5240-60076
Was N5242-60166, or
N5230-60002
N5240-60077 1
Was N5240-60056
N5340-60078
Description
Doubler assembly port 1
Doubler assembly port 2
Noise board
26.5 GHz source (2) board (On 2-port models, this
assembly is included only with Opt 224.)
Doubler assembly port 3
(On 2-port models, assembly A12 is included only with
Opt 224.)
Doubler assembly port 4
(On 2-port models, assembly A13 is included only with
Opt 224.)
Frequency reference board
13.5 GHz (LO) synthesizer board
— Signal Processing ADC Module (SPAM) board -
N5240-60056, N5240-60077 and N5240-60078
are SPAM 5 boards.
Keysight N5244B/45B Service Guide