Contents

Chapter 6 Service

Operating Checklist 103 Types of Service Available 104 Repackaging for Shipment 105 Cleaning 105

Electrostatic Discharge (ESD) Precautions 106 Surface Mount Repair 106

To Replace the Power-Line Fuse 107

To Replace the Output Protection Fuse (F801) 107 Troubleshooting Hints 108

Self-Test Procedures 110

Chapter 7 Replaceable Parts

Replaceable Parts 113

Chapter 8 Schematics

33120A Block Diagram 129

Mechanical Disassembly 130

Floating Logic Schematic 131

Digital Waveform Data Synthesis 132

System DAC Schematic 133

Waveform DAC Schematic 134

Filters Schematic 135

Sync, Square Wave, and Attenuator Schematic 136

Output Amplifier Schematic 137

Output Attenuator Schematic 138

Earth Reference Logic Schematic 139

Power Supplies Schematic 140

Display and Keyboard Schematic 141

33120-66521 Component Locator Diagram 142

33120-66502 Component Locator Diagram 143

Contents

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Agilent Technologies 33120A manual Service, Replaceable Parts, Schematics