Keysight N5221A Service Manual page 165

PNA Series Microwave Network Analyzers
N5221A/22A
Reference
Designator Part Number
A3
a
20
N5242-20121 (Tube)
critical footnote
N5242-00044 (LED)
a
21
N5245-00027 (Tube)
critical footnote
Was N5242-00034
N5242-60043
22
a
23
N5242-20168 (LED)
critical footnote
a
8121-2132 (LED)
24
8121-1451 (Tube)
critical footnote
a.
In March 2013, Keysight discontinued using a display with florescent tube backlighting, and began using a display with
LED backlighting. Associated parts are indicated in this table with either "Tube" or "LED." If you replace an old part
number <designated "Tube"> with its new part number <designated "LED">, you must also replace ALL of the other
old part numbers <designated "Tube"> in the table with their new part numbers <designated "LED">.
Figure 6-3. Front Panel Assembly, Back Side, All Options
Service Guide N5222-90001
Qty Description
Display assembly (continued from previous page)
Spacers (For display hold down bracket standoffs.) For use with LCD
4
display 2090-0883 only.
1 LCD display rear plate
1 LCD display cable
LCD display side bracket
2
1 Cable assembly for LCD backlight
Replaceable Parts
Replaceable Parts Listings
6-11