Agilent Technologies E4351B, E4350B Adapter Board and Phone Adapter Board Figures 6-11

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A1 Main Board Schematics (Figure 6-5)

The four schematic sheets for the A1 board included in this addendum replace figures 6-2 and 6-5 in the standard Service Manual for the Agilent Series 665xA DC Power Supplies.

The assembly drawing for the A1 main board included in this addendum replaces Figure 6-5 in the standard Service Manual.

Left Tunnel Circuits (Figure 6-6)

The component locations and schematic drawings for the A4 left tunnel circuits included in this addendum replace figure 6-6 in the standard Service Manual.

Right Tunnel Circuits (Figure 6-7)

The component locations and schematic drawings for the A4 right tunnel circuits included in this addendum replace figure 6-7 in the standard Service Manual.

DSP Board (Figure 6-10)

The simplified component locations diagram for the A5 DSP board shows the location of the troubleshooting test points on the J721 and J722 connectors as well as the location of the two replaceable ROM chips, U734 and U735.

Because troubleshooting for the A5 DSP Board is to the assembly level only, no schematics or parts lists are included for this board.

Adapter Board and Phone Adapter Board (Figures 6-11, 6-12)

The A6 Adapter board connects the A5 DSP board to the A1 main board.

The A7 Phone Adapter board connects the A5 DSP board to the A2 GPIB board.

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Service Addendum

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Contents Foreword Areas of DifferenceTable of Contents Firmware Revisions Test Equipment RequiredBasic Test Setup Measurement TechniquesCC RMS Noise Measurement Test Setup Transient Recovery TimeVoltage and Current Values Performance Test Record Load Effect Source Effect Pard Ripple & NoiseCurrent Sink 0.9A Readback Accuracy Pard Ripple & Noise Self-Test Error Codes/Messages Signature AnalysisOverall Troubleshooting sheet Overall Troubleshooting sheet 1Overall Troubleshooting sheet 2 Overall Troubleshooting sheet 3 Overall Troubleshooting sheet 4 Flow Charts OV & OCNo Display Troubleshooting No Display TroubleshootingOV Will Not Fire Troubleshooting OV Will Not Fire StartOV at Turn-On Troubleshooting OV at Turn-On StartOutput Held Low Troubleshooting sheet Output Held Low StartOutput Held Low Troubleshooting Sheet 2 Output Held High Troubleshooting Output Held High StartClear Screen Case Else Next Cable and Connector Locations 18. Cable and Connector Locations for E4350B/E4351BDSP Board Digital Signal Processor DSP Board Simplified Diagram of DSP Circuits DSPChassis -Mechanical Page Page Page Page Mosfet Page Page Page Page STUD-STD-PRS-IN Service Addendum FET Q303 1855-0849 FET Mechanical Test Points Signal Measurement and Conditions A4A1/A4A3 Left Tunnel Boards Figure Adapter Board and Phone Adapter Board Figures 6-11 A1 Main Board Assembly Diagram and Test Points for E4350B A1 Main Board Schematic Diagram for E4350B sheet 1 A1 Main Board Schematic Diagram for E4350B sheet 2 A1 Main Board Schematic Diagram for E4350B sheet 3 A1 Main Board Schematic Diagram for E4350B sheet 4 A4 Left Tunnel Circuit Component Locations for E4350B A4A1/A4A3 Left Tunnel Circuit Schematic Diagram for E4350B A4A2/A4A4 Right Tunnel Circuit Schematic Diagram for E4350B 10. A5 DSP Board Test Points 11. A6 Adapter Board Schematic Diagram

E4351B, E4350B specifications

Agilent Technologies, a leader in electronic measurement, offers a range of advanced solutions, including the E4350B and E4351B switching systems. These models are specifically designed to meet the increasing demands of modern testing environments, providing high reliability and precision for a variety of applications.

The Agilent E4350B is known for its low resistance switching capabilities, making it an ideal choice for applications requiring accurate and repeatable measurements. It supports up to 16 channels of low resistance testing, allowing engineers to simulate complex electrical paths and identify potential issues in circuit designs. With an optional temperature measurement capability, users can monitor the thermal performance of components directly during tests.

On the other hand, the E4351B model enhances flexibility with a modular design, offering an extensive range of input and output configurations. This instrument is particularly well-suited for automated test systems, providing the ability to connect multiple devices and manage them seamlessly. Its high-speed switching technology enables quick toggling between channels, ensuring that large datasets can be acquired swiftly without compromising accuracy.

Both models employ advanced contact technology, which minimizes the potential for signal degradation, ensuring that users receive reliable data with minimal noise interference. This feature is crucial in applications where signal integrity is paramount, such as in research and development or quality assurance processes.

Enhanced user interfaces simplify operations for both novice and experienced technicians. The built-in touchscreen and intuitive navigation allow for easy setup and operation, significantly reducing the learning curve. Furthermore, the comprehensive software support provided by Agilent facilitates integration with various programming environments, allowing for custom test sequences tailored to specific needs.

Moreover, both E4350B and E4351B systems are built with durability in mind. The robust construction ensures long-term reliability, reducing downtime and maintenance costs. This makes them ideal candidates for both laboratory settings and field operations where consistent performance is critical.

In summary, Agilent Technologies’ E4350B and E4351B models are distinguished by their precision, flexibility, and robust performance. Their advanced features and user-friendly design make them suitable for a wide variety of applications, from routine testing to complex R&D projects. By leveraging modern switching technologies, these systems set a high standard for electronic measurement, aiding engineers in developing reliable electronic solutions.
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