Keysight Technologies N5221A

7-4 Keysight N5221A/22A Service Guide
Repair and Replacement Procedures
Removal and Replacement Procedures
7-
Removal and Replacement Procedures
Table 7-1 List of Procedures
Reference
Designator
Assembly Description Location
N/A Covers, outer and inner page 7-6
N/A Fan bracket and fans page 7-56
N/A Front panel assembly page 7-8
N/A Front panel LED boards page 7-54
A1
A2
A3
Front panel display board
USB board
Display assembly
page 7-10
A4, A13, A11
A5, A8
A10
A12
13.5 GHz synthesizer boards
26.5 GHz source boards
Frequency reference board
Signal processing ADC module (SPAM) board
page 7-15
A14 System motherboard page 7-18
A15 Midplane board page 7-21
A16 Power supply page 7-23
A17 CPU board page 7-25
A18 GPIB board page 7-27
A19 Test set motherboard page 7-29
A20 IF multiplexer board page 7-31
A21 Multiplier/amplifier 26.5 (HMA26.5) page 7-33
A22 Splitter page 7-35
A23, A24 Mixer bricks page 7-37
A25
A26
A27
A28
Port 1 receiver coupler
Port 3 receiver coupler
Port 4 receiver coupler
Port 2 receiver coupler
page 7-39
A29
A30
A31
A32
Port 1 test port coupler
Port 3 test port coupler
Port 4 test port coupler
Port 2 test port coupler
page 7-41
A33 Reference mixer switch page 7-43