8 Keysight N5221A/22A Service Guide
Index
checking current version, 15
upgrades, 15
flowgraph
of one port error terms
, 3
of two port error terms, 4, 5, 6
using to identify error
terms
, 3
frequency
adjustment
at 10 MHz
, 41
frequency accuracy
test
, 34
frequency reference board
illustrated
, 18
operation, 11
part number, 16
removal and replacement
illustrated
, 17
procedure, 15
troubleshooting, 35
front frame
illustrated
, 11
part number, 10
front panel
assembly
replaceable parts
, 10,
11, 12
assembly, replaceable parts
illustrated
, 14
assembly, replacement
illustrated
, 9
procedure, 8
display assembly
illustrated
, 14
parts list, 12
display board
operation
, 28
front frame
illustrated
, 11
part number, 10
interconnects, 28
interface board
illustrated
, 14
part number, 12
replacement, 10, 11
troubleshooting, 14, 16
inverter board
illustrated
, 14
part number, 12
keypad assembly
illustrated
, 14
parts list, 12
replacement, 11
troubleshooting, 16
knob
illustrated
, 11
part number, 10
test, 18
troubleshooting, 16
LCD assembly
illustrated
, 14
parts list, 12
LED board
illustrated
, 22, 28, 35, 41,
48, 55, 62, 69, 85,
100
part number, 21, 27, 34,
40, 47, 54, 61, 68,
75, 84, 98
LED board, removal and
replacement
illustrated
, 55
procedure, 54
lower dress panel
illustrated
, 11
part number, 10
lower overlay
illustrated
, 11
part number, 10
nameplate
illustrated
, 11
part number, 10
operation, 28
power switch board
illustrated
, 14
parts list, 12
power switch overlay
illustrated
, 11
part number, 10
subassemblies, removal and
replacement
procedures
, 10
subassemblies, replacement
illustrated
, 11
subgroup, 26
touch screen
illustrated
, 14
parts list, 12
trim strip, filler
illustrated
, 11
part number, 10
troubleshooting, 16
USB board
illustrated
, 14
part number, 12
USB controller board
illustrated
, 14
part number, 12
functional groups, 3
fuses, 105, 106
G
gain, IF
adjustment
, 43
general safety
considerations
, 3
government
regulatory information
, 9
GPIB, 7
board
illustrated
, 18
part number, 16
replacement, 27, 28
cables
part numbers
, 105
CONTROLLER
systems check
, 21
test software, 21
troubleshooting, 21
port
rear panel connector
, 30
ground, safety earth, 3
groups
functional
, 3
H
handle
damaged
, 3
HANDLER I/O
connector
pin assignments
, 13
rear panel, 12
hard disk drive
copying files from
, 50
installing backup files
onto
, 51
removal and replacement
illustrated
, 50