Make most voltage measurements (except DC-to-DC Converter and ac mains-connected circuits) referenced to the unit's output common. The output common is accessible at rear-panel M terminal. All voltages are ± 5% unless a range is given.

Using the Tables

Typically there will be two types of power supply failures; no-output and performance failures.

1.NO-OUTPUT FAILURE: Start with the TROUBLESHOOTING NO-OUTPUT FAILURES section which references Tables 3-1 and 3-3.

2.PERFORMANCE FAILURE: If the power supply produces an output but does not perform to specifications, begin by verifying the measurements at the A2J7 test connector using Table 3-1. Next, verify the front panel by doing the procedure outlined in the FRONT PANEL TROUBLESHOOTING section. After the front panel has been verified consult Table 3-5 for the performance failure symptom which seems closest to the one observed and proceed to the functional circuit given for that failure.

The circuits referenced in Tables 3-2 and 3-5 are derived from functional blocks of circuits in the power supply. These blocks are given in the Power Supply Blocks section starting on page 40. Troubleshooting information for each block will include a brief description of the circuit involved. The columns provided in each block are as follows:

NODE:

This column lists the nodes where the measurements should be taken. In some cases this will be

 

stated as NODE ( + ) and NODE (- ) where the first is the test node and the second is the

 

reference.

SETUP:

If a certain setup is required for the measurement, it will be given in this column.

MEASUREMENT:

This column indicates what the expected measurement is for the given node.

SOURCE:

If applicable, the components which generate the signal will be provided in this column .

Some blocks will have Input and Output sections. The input section will have a source column to indicate which components generated the measured signal. The output section will list all the important output signals from that block. However, because the outputs of one block are the inputs to another, the schematic should be consulted if an output measurement is incorrect. This will indicate the next circuit block to be trouble shot.

Main Troubleshooting Setup

Figure 3-1 shows the troubleshooting setup for troubleshooting all of the unit except the front panel and initial no output failures (see page 36). The external power supply provides the unit's internal bus voltage. The ac mains cord connects to the unit's A1T3 bias transformer via an isolation transformer, thereby energizing the bias supplies, but it does not connect to the input rectifier and filter because that would create the bus voltage. With the external supply the unit operates as a dc-to-dc converter. The supply biases the A4Q1, A4Q2, A4Q3 and A4Q4 PFETs with a low voltage rather than the 320Vdc bus voltage. This protects the PFETs from failure from excess power dissipation if the power-limit comparator or the off-pulse circuitry are defective. It also reduces the possibility of electrical shock to the troubleshooter.

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Agilent Technologies 6011A, 6010a, 6012B, 6015A service manual Using the Tables, Main Troubleshooting Setup
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6015A, 6012B, 6011A, 6010a specifications

Agilent Technologies, a leader in the field of measurement and analysis, offers a suite of instruments within its 6010 and 6011 series, specifically the 6010A, 6011A, 6012B, and 6015A models. These devices are designed to meet the needs of various industries, including healthcare, environmental monitoring, and materials testing.

The Agilent 6010A is a high-performance spectrometer known for its precision and versatility. It utilizes advanced optical technologies to provide exceptional wavelength accuracy and resolution. This model is particularly useful in laboratories where reliable data is critical, offering a wide spectral range and effective noise reduction features. Its user-friendly interface simplifies complex analyses, making it suitable for both seasoned professionals and newcomers.

Following closely, the Agilent 6011A is recognized for its robust capabilities in laboratory environments. This device incorporates advanced signal processing techniques, enabling high-throughput measurements without compromising on quality. The 6011A is ideal for real-time monitoring applications, ensuring that users can make informed decisions based on accurate, timely data. Its comprehensive software suite is designed to enhance data analysis, allowing for seamless integration with existing laboratory workflows.

The 6012B variant enhances the functionality further by introducing additional features tailored for specific applications. With a focus on flexibility, the 6012B supports multiple measurement modes, including direct and differential detection. This model excels in complex measurements, allowing for greater analytical depth and insights. The built-in calibration options ensure consistent performance, making it a reliable choice for various research and development tasks.

Lastly, the Agilent 6015A model stands out with its leading-edge technology, designed for the most demanding applications. It boasts enhanced sensitivity and an improved dynamic range, making it perfect for trace analysis in challenging environmental samples. The 6015A’s advanced reporting tools provide detailed analytics, helping scientists and researchers interpret results efficiently. Its compact design also makes it suitable for laboratory spaces with limited room, without sacrificing performance.

Together, these models showcase Agilent Technologies' commitment to delivering high-quality, innovative solutions that empower users to achieve their analytical goals effectively and efficiently. Whether in a research, clinical, or industrial setting, the 6010A, 6011A, 6012B, and 6015A continue to set standards in precision instrumentation.
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