146 Chapter3
Assembly Replacement
Introduction
Introduction
This chapter describes the removal and replacement of all major
assemblies. The following replacement procedures are provided:
Access to Internal Assemblies............................................ page 147
Cable Color Code................................................................. page 148
Procedure 1. Spectrum Analyzer Cover............................. page 149
Procedure 2A. A1 Front Frame/A18 LCD (8560EC)......... page 150
W3 Line Switch Cable (8560EC)...................................... page 153
Procedure 2B. A1 Front Frame/A18 CRT (8560E)............ page 160
Procedure 3. A1A1 Keyboard/Front Panel Keys................ page 169
Procedure 4. A1A2 RPG...................................................... page 170
Procedure 5. A2, A3, A4, and A5 Assemblies..................... page 171
Procedure 6A. A6 Power Supply Assembly (8560EC)....... page 178
Procedure 6B. A6 Power Supply Assembly (8560E).......... page 181
Procedure 7. A6A1 High Voltage Assembly (8560E)......... page 185
Procedure 8. A7 through A13 Assemblies.......................... page 189
A7 1st LO Distribution Amplifier..................................... page 191
A8 Low Band Mixer .......................................................... page 192
A9 Input Attenuator ......................................................... page 192
A10 Tracking Generator (Option 002) ............................. page 194
A11 YTO ............................................................................ page 195
A13 Second Converter....................................................... page 196
Procedure 9. A14 and A15 Assemblies............................... page 197
Procedure 10. A16 FADC/A17 CRT Driver (8560E).......... page 200
Procedure 11. B1 Fan.......................................................... page 203
Procedure 12. BT1 Battery................................................. page 204
Procedure 13. Rear Frame/Rear Dress Panel.................... page 205
Procedure 14. W3 Line Switch Cable (8560E)................... page 210
Procedure 15. EEROM (A2U501)....................................... page 219
Procedure 16. A21 OCXO (Non-Option 103)...................... page 221
Tools required to perform the procedures are listed in Table 3-1 on
page 148.
The words right and left are used throughout the replacement
procedures to indicate the side of the spectrum analyzer as viewed from
the front panel. See Figure 3-1 on page 149.
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.
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