User's Manual

3
Assembly Replacement
This chapter describes the removal and replacement of all major assemblies. The following
replacement procedures are provided:
Page
Access to
InternalAssemblies...........................................................3- 2
Cable Color Code......................................................................3- 2
Procedure 1. Analyzer Cover...........................................................3- 3
Procedure 2. Al Front Frame/Al8 CRT
...............................................
.3-4
Procedure 3.
AlAl Keyboard/Front Panel Keys
......................................
.3-11
Procedure 4. AlA RPG
.............................................................
.3-12
Procedure 5. A2, A3, A4, and A5 Assemblies
.........................................
.3-13
Procedure 6. A6 Power Supply Assembly
.............................................
.3-19
Procedure 7.
A6Al High Voltage Assembly
...........................................
.3-22
Procedure 8. A7 through Al3 Assemblies
.............................................
.3-25
A7 1st LO Distribution Amplifier
...................................................
.3-28
A8 Dual Band
Mixer.................................................................3-2 9
A9 Input Attenuator.................................................................3-3 0
A10 Tracking Generator.............................................................3-3 1
All YTO
...........................................................................
.3-32
Al3 Second Converter...............................................................3-3 3
Procedure 9. Al4 and Al5 Assemblies
...............................................
3-34
Procedure 10. Al7 CRT Driver
......................................................
3-37
Procedure 11. Bl Fan..
...........................................................
..3-3 8
Procedure 12. BTl Battery..........................................................3-3 9
Procedure 13. Rear Frame/Rear Dress Panel
........................................
.3-40
Procedure 14. W3 Line Switch Cable
................................................
3-44
Procedure 15. EEROM (A2U501).
..................................................
.3-50
Procedure 16. A21 OCXO (Option 003)
.............................................
.3-51
Tools required to perform the procedures are listed in Table 3-l.
The words right and
left are used throughout the replacement procedures to indicate the side
of the analyzer as viewed from the front panel.
Numbers in parentheses are used throughout the replacement procedures to indicate numerical
callouts on the figures.
Caution
The spectrum analyzer contains static-sensitive components. Read the section
entitled “Electrostatic Discharge” in Chapter 1.
Assembly Replacement 3-1