6-12 Keysight N5264A Service Guide
Replaceable Parts
Replaceable Parts Listings
6-
In February 2012, the N5264A analyzer underwent significant hardware
changes. These changes included a redesigned Signal Processing ADC
Module (SPAM) board, Frequency Reference board, left side inner bracket,
and right side inner bracket. It is very important that this redesigned
hardware be used only with analyzer serial numbers prefixed
MY/SG/US5204 and above. If you have an analyzer whose serial number is
prefixed MY/SG/US5144 and below, you must use the previous version of
hardware rather than the redesigned hardware. Both versions of the
affected boards are included in the following table.
Be very careful to use the appropriate hardware in your analyzer. Using the
wrong hardware can ruin analyzer components, resulting in additional
customer costs.
Ref-
erenc
e
Desig-
nator
Serial Number
Prefixes
Affected
a
Part Number
Qty
Description
A10
5204 and
above
N5240-60069
1
Frequency reference board
5144 and
below
N5240-60061
Was N5240-60042
A11
All prefixes
N5240-60074
b
1
13.5 GHz LO synthesizer board (with tabs)
N5240-60076
c,
d
or
N5230-60002
1
13.5 GHz LO synthesizer board (with tabs removed)
A12
5204 and
above
N5240-60077
Was N5240-60056
1
Signal Processing ADC Module (SPAM) board
5144 and
below
N5245-60126
Was N5240-60041, or
N5264-60005
A14
All prefixes
N5242-60151
Was N5240-60044
1
System motherboard
A15
All prefixes
W1312-60095
Was W1312-60002
1
Midplane board
A16
All prefixes
0950-4934
Was 0950-4900, or
0950-4457
1
Power supply
A17
All prefixes
W1312-60196
Was W1312-60190, or
W1312-60068
1
CPU board assembly, Intel ® 2.0 GHz Core ® i7
e
A18
All prefixes
N5240-60059
Was N5240-60052
1
GPIB board