Keysight N8976B

522 Keysight NFA Series Noise Figure Analyzers Service Guide
Index
blank display, 60
block diagrams, 322
boot process
problems, 52
boot up process, 47
broadband preamplifiers, 16
C
cables
part numbers, 353
calibration application software, 22
call centers, 38
cautions and warnings, 18
chassis parts
part numbers, 353
checking firmware revision, 46
computer block diagram, 322
connector
see RF input connector
contacting Keysight, 38
corrections menu description, 344
CPU assembly
see A4 CPU assembly
CPU memory card
see A4A1 CPU memory card
D
DANL test, 492
DC probes
use of, 16
diagnostics menus, 333
digital IF
see A3 digital IF assembly
disk drive recovery process, 300
display
see A1A3 LCD
display output, rear panel, 60
displayed average noise level. See
DANL, 492
dress case
see outer case
E
electrostatic discharge, 20
equipment
adjustments, 25
functional tests, 489
performance verification tests, 25
warm-up time, 488
error messages, 46, 69
ESD Information, 20
ESD safety accessories, 17
external hard ware, 364, 365, 366,
367, 370, 371, 372, 373, 375, 377,
382, 383, 384, 385, 425
external VGA monitor, 60
F
fans
see B1, B2 fans
firmware, 46
firmware revision, checking, 46
firmware updating, 518
frequency ranges, 134, 200
frequency readout accuracy test, 495
frequency response
(flatness) test, 505
frequency response (flatness) test
preamp on, 509
front end assembly
see A13 RF front end assembly
front end control board
see A15 front end control assembly
front end troubleshooting kit, 23
front frame
description, 320
part number, 353
removal, 457
front frame parts, 460, 461
front panel interface
see A1A2 front panel interface
board, 353
functional testing
performance verification, 487
functional tests, 46
before performing, 488
equipment list, 489
introduction, 487
vs performance verification
tests, 487
warm-up time, 488
See also individual functional
tests, 487
Functional Tests Guide on
CD-ROM, 15
G
Getting Started Guide on
CD-ROM, 15
green LED, 49
H
handle
see bail handle
hard ware
external, 364, 365, 366, 367, 370,
371, 372, 373, 375, 377, 382, 383,
384, 385, 425
high band mixing equations, 227
high band path, 134, 200
High Band Preamp (Option P08, P13,
P26) troubleshooting, 227
high band signal level verification, 67
high band troubleshooting, 169, 173,
216, 221
I
IF Flatness menu description, 344
initialization problem, 61
input attenuators
see A9 and A10 input attenuator
input connector
see RF input connector
instrument
return for service, 42
instrument frequency ranges, 134,
200
instrument messages, 69
Instrument Messages Guide on
CD-ROM, 15
instrument packaging, 42
instrument serial number, 41
K
keyboard
USB, 24
keypad
part number, 353
Keysight Technologies
contacting, 38
L
LCD
see A1A3 LCD
LED
front panel, 46
green, 49
power on, 54
standby, 52
yellow, 49, 52
licensing software, 519
limiters
RF and transient, 16
LO Band Lock menu description, 347
load, 50 ohm, 16
loading instrument application
software, 299
low band mixing equations, 215
low band path, 134, 200
low band signal level verification, 66
low band switch
see A11 low band switch
low band troubleshooting, 142, 206
M
major assembly locations, 392
manual set, 15
measurement application
updating, 518
Measurement Guides and
Programming Examples Guides on
CD-ROM, 15
memory card
see A4A1 memory card