14-4 Chapter 14
Assembly Replacement and Post-Repair Procedures
Replacing an Assembly
Procedures described in this chapter
The following pages describe assembly replacement procedures for the analyzer
assemblies listed below:
• Line Fuse on page 14-5
• Covers on page 14-6
• Front Panel Assembly on page 14-8
• Front Panel Keyboard and Interface Assemblies (A1, A2) on page 14-10
• Display, Display Lamp and Inverter Assemblies (A18, A27) on page 14-12
• Rear Panel Assembly on page 14-14
• Rear Panel Interface Board Assembly (A16) on page 14-16
• A3 Source Assembly on page 14-18
• A4, A5, A6 Samplers and A7 Pulse Generator on page 14-20
• A8, A10, A11, A12, A13, A14 Card Cage Boards on page 14-22
• A9 CPU Board on page 14-24
• A9BT1 Battery on page 14-26
• A15 Preregulator on page 14-28
• A17 Motherboard Assembly on page 14-30
• A19 Graphics Processor on page 14-34
• A20 Disk Drive Assembly on page 14-36
• A21, A22 Test Port Couplers (8753ES Only) on page 14-40
• A21 Dual Directional Coupler (8753ET Only) on page 14-42
• A23 LED Board (8753ES Only) on page 14-44
• A24 Transfer Switch (8753ES Only) on page 14-46
• A25 Test Set Interface (8753ES Only) on page 14-48
• A26 High Stability Frequency Reference (Option 1D5) Assembly on page 14-50
• B1 Fan Assembly on page 14-52
IMPORTANT Unless noted otherwise, all replacement procedures apply to both the
8753ES and the 8753ET.
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