3 - Troubleshooting

Continued from sheet 1

Program Voltage and Current full scale, enable output with no load. Measure Voltage at output terminals.

Display and

 

 

 

Voltage close

measured

 

No

 

 

 

to programmed

voltage OK?

 

 

 

 

 

 

value?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If output is OK but

 

 

 

 

 

 

 

 

 

 

meter wrong, replace

 

 

Output Voltage

 

 

 

 

A2. If both are off,

No

 

 

No

 

 

 

near zero?

 

 

 

check gain of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Voltage Monitor

 

 

 

 

 

 

 

 

 

 

Amplifier A1U315B

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

Load output to put unit into CC and measure output current with extrenal amp meter

Display and measured current OK?

Yes

Calibrate Voltage

Current close

No to programmed value?

Yes

Go to

"Troubleshooting No Output Voltage"

(sheet 7)

Current > prog

No and unit not in CC?

Yes

 

 

If output is OK but

 

 

meter wrong, replace

 

 

A2. If in CC but both

 

 

are off, check gain of

 

 

Current Monitor

 

 

Amplifiers and

 

 

Monitor Resistor

No

 

 

R403/473 values. If

 

 

 

 

the current is lower

 

 

than programmed

 

 

and UNReg is

 

 

displayed, check

Program OV below output voltage

OV Trips?

Yes

No

Calibrate Current

Go to

"Troubleshooting Unit Does not OV” (sheet 11)

Go to "Troubleshooting No Current limit" (sheet 10)

A1Q307 and Output

Stage

Program OV to maximum and reset protection

Go to sheet 3

Figure 3-1 Sheet 2. Main Flowchart (continued)

26

Page 26
Image 26
Agilent Technologies 6633B, 6634B, 66332A, 6632B service manual Sheet 2. Main Flowchart

6632B, 6633B, 66332A, 6634B specifications

Agilent Technologies, a leader in electronic test and measurement solutions, offers a range of power supplies designed to meet various application needs. Notable models include the 6632B, 6634B, 66332A, 6633B, and 6612C. Each of these units provides unique features and technologies that cater to researchers, engineers, and technicians in the industry.

The Agilent 6632B is a single-output DC power supply that delivers up to 30V and 3A. It is known for its excellent load regulation and low noise, making it ideal for sensitive electronic testing. The model includes built-in voltage and current measurement capabilities, allowing users to monitor output conditions in real time. The 6632B is commonly used in laboratory environments, educational institutions, and manufacturing lines.

Moving to the 6634B, this model offers dual-output capabilities with a maximum output of 30V and 6A. This versatility enables simultaneous powering of two different devices or circuit sections. It also features parallel and series operation options, allowing users to create a custom power supply configuration for specific applications. With a programmable interface, the 6634B simplifies test automation, ensuring efficiency in extensive testing scenarios.

The Agilent 66332A stands out with its precision and high performance. This power supply provides three outputs—two programmable and one fixed—yielding flexible power configurations. Its intuitive user interface allows easy adjustment of voltage and current settings. The device is equipped with extensive protection features to safeguard both the power supply and the connected load against faults. It is an excellent choice for complex testing setups that require reliable power.

The 6633B model offers a high-performance power supply with dual outputs, similar to the 6634B but with enhanced specifications. It can provide up to 40V and 2A per channel, delivering precision for demanding applications. This model is particularly suited for industries focused on high-reliability applications, such as telecommunications and aerospace.

Lastly, the Agilent 6612C is a compact and lightweight power supply providing single-output up to 60V and 2A. This model is designed for simplicity and ease of use, making it an excellent choice for portable applications. The 6612C’s unique characteristics include a compact design and user-friendly controls, which facilitate operation in field settings.

In summary, Agilent Technologies’ power supply models—6632B, 6634B, 66332A, 6633B, and 6612C—offer an array of features that cater to a wide range of testing and research needs, ensuring reliable power delivery in various contexts.