Agilent Technologies E4448A Service Guide

306 Chapter 11
Assembly Replacement Procedures
What You Will Find in This Chapter
What You Will Find in This Chapter
Procedures in this chapter enable you to locate, remove, and replace the
major assemblies in your instrument.
Refer to Chapter 10 , “Replaceable Parts Lists and Locations,” for part
numbers, assembly descriptions, and ordering information.
This chapter contains removal and replacement procedures for the
following:
• Outer Case............................................................................page 310
• Top Brace ..............................................................................page 312
• Front Frame ........................................................................ page 314
• RF Section and Assemblies (E4440A,E4443A,E4445A) ....page 317
A18 YTO and A19 RYTHM..................................................page 322
A21 SLODA ..........................................................................page 323
FL1 Low Pass Filter.............................................................page 323
FL2 Band Pass Filter...........................................................page 324
A20 Lowband........................................................................page 324
A22 Preamplifier ..................................................................page 326
A27 Electronic Attenuator...................................................page 326
A36 Preamplifier ..................................................................page 329
• RF Section and Assemblies (E4446A, E4447A, E4448A) ..page 336
A18 YTO and A19 SBTX/RYTHM.......................................page 341
A21 FELOMA.......................................................................page 342
FL1 Low Pass Filter.............................................................page 342
FL2 Band Pass Filter...........................................................page 343
A20 Lowband........................................................................page 343
A29 LOMA/SBTX Driver .....................................................page 345
A30 FIFA ..............................................................................page 345
A22 Preamplifier ..................................................................page 347
A27 Electronic Attenuator...................................................page 347
SW4 Millimeter Switch........................................................page 351
A34 Mixer .............................................................................page 352
A35 Mixer Bias Board..........................................................page 353
SW3 Switch ..........................................................................page 353
SW5 Switch ..........................................................................page 355
• A14 and A15 Attenuator Assembly.....................................page 357
• A5 Power Supply..................................................................page 361
• A39 USB/Memory Board .....................................................page 363
• A6 SCSI Board (early instruments) ....................................page 366
• Vertical Board Assemblies ...................................................page 366
• Mid-Web and Fan Assemblies .............................................page 374
• A23 Disk Drive .....................................................................page 378
• A25 Motherboard .................................................................page 382

Agilent Technologies E4448A Specifications

General

Brand	Agilent Technologies
Model	E4448A
Category	Measuring Instruments
Language	English