Keysight N8976B

Keysight NFA Noise Figure Analyzers Service Guide 521
Index
RF front end
see A13 RF front end assembly
Numerics
50 ohm load, 16
50 ohm/75 ohm minimum loss
pad, 16
A
A10 input attenuator
description, 138, 203
high band troubleshooting, 180
low band troubleshooting, 153
part number, 353
removal, 404, 415
A10 Input Attenuator B
troubleshooting, 210
A11 low band switch
description, 138, 203
high band troubleshooting, 184
low band troubleshooting, 157
part number, 353
removal, 401, 411
A11 Low Band Switch
troubleshooting, 209
A12 YTF
description, 138, 203
high band troubleshooting, 185
low band troubleshooting, 158
part number, 353
removal, 406, 417
A13 front end assembly
troubleshooting, 213
A13 Front End Assembly
Verification, 226
A13 Front End Input Verification, 221
A13 RF front end assembly
description, 140, 204
removal, 420, 422
A14 L.O. synthesizer assembly
description, 139, 270
high band troubleshooting, 175, 224
low band troubleshooting, 148, 211
part number, 353
removal, 427
troubleshooting, 272
A15 front end control assembly
description, 141, 205, 230
high band troubleshooting, 178
low band troubleshooting, 151
part number, 353
removal, 424
troubleshooting, 235
A16 reference assembly
description, 280
high band troubleshooting, 173
low band troubleshooting, 146
part number, 353
removal, 429
troubleshooting, 282
A1A2 front panel interface board
description, 320
part number, 353
A1A3 LCD
description, 320
part number, 353
removal, 466
troubleshooting, 60
A1A4 inverter board
part number, 353
A1A5 front panel daughter board
part number, 353
A2 analog IF assembly
description, 249
part number, 353
removal, 440
troubleshooting, 253
A3 digital IF assembly
description, 260
part number, 353
removal, 440
troubleshooting, 263
A4 CPU assembly
description, 292
part number, 353
removal, 433
troubleshooting, 292
A4A1 CPU memory card
removal, 435
A4A1 memory card
removal, 437
A4BT1 CPU board battery
part number, 353
post-repair setup, 473
replacement, 433
A5 disk drive
description, 296
troubleshooting, 296
A5 hard disk drive
part number, 353
A5 SSD assembly
removal, 435
A5 SSD module
removal, 435
A6 power supply
description, 304
part number, 353
removal, 431
troubleshooting, 310
A7 midplane
description, 312
part number, 353
troubleshooting, 315
A7 midplane assembly
part number, 353
A8 motherboard
description, 318
part number, 353
removal, 447
troubleshooting, 319
A9 input attenuator
description, 138, 203
high band troubleshooting, 180
low band troubleshooting, 153
part number, 353
removal, 404, 415
A9 Input Attenuator A and A10 Input
Attenuator B Verification, 222
A9 Input Attenuator A
troubleshooting, 210
AC probe, 16
access to service menus, 334
accessories, 15
50 ohm load, 16
50 ohm/75 ohm minimum loss
pad, 16
AC probe, 16
broadband preamplifiers, 16
power splitters, 17
RF limiters, 16
transient limiters, 16
adjustments
equipment, 25
required test equipment, 25
test equipment, 25
after repairs
see post-repair procedures, 472
Agilent Technologies
Sales and Service offices, 38
splash screen, 49
Align menu description, 340
Alignments key, 46
amplifiers, 16
amplitude accuracy test, 501
option 1DS, 504
amplitude linearity test, 514
analog IF
see A2 analog IF assembly
application updating, 518
attenuators, removal, 404, 415
B
B1, B2 fans
part number, 353
removal, 452
troubleshooting, 56
bail handle
part number, 353
removal, 395
Band Lock menu description, 346
basics, troubleshooting, 46
battery
see A4BT1 CPU board battery
before troubleshooting, 18