Brand: HP
Category: Power Supply
Document Type: Manual
Language: EN
Manual for 6033A and 6038A
Uploaded: Nov. 21, 2025, 6:12 p.m.
Manual Publish Date: 1999-12-01
Warranty Information
Warranted against defects in material and workmanship for three years from date of delivery; software/firmware for 90 days.
The manual covers the HP 6033A and 6038A autoranging DC power supplies. It includes sections on calibration and verification procedures to ensure the units meet specifications. Troubleshooting guidance is provided to identify and resolve malfunctions down to the component level. Principles of operation are explained through block diagrams of the supply's circuits, aiding in troubleshooting. Replaceable parts are listed, and detailed circuit diagrams are included for functional schematics and component locations. Safety precautions are emphasized throughout the manual, particularly for a Safety Class 1 instrument. Procedures for manual revisions and firmware updates are also detailed.
Troubleshooting and error codes
| Printed Circuit Board | Block Name | Ref. Desig. | Perform These Procedures |
|---|---|---|---|
| A1 Main Board | R3 | Current Monitor Full Scale Calibration Constant Current Full Scale Calibration |
|
| A1 Main Board | T1 | Power Limit Calibration | |
| A4 Power Mesh Board | T3 | Power Limit Calibration | |
| A4 Power Mesh Board | CR7 | Power Limit Calibration | |
| A2 Control Board | Constant Voltage Circuit (All Except Current Source) | All | Voltage Monitor Zero Calibration Common Mode Calibration Remote Readback Zero Calibration Constant Voltage Full Scale Calibration Voltage Monitor and Remote Readback Full Scale Calibration Constant Voltage Zero Calibration |
| A2 Control Board | Constant Voltage Circuit (Current Source) | All | Resistance Programming Full Scale Calibration |
| A2 Control Board | Constant Current Circuit | All | Current Monitor Zero Calibration Constant Current Zero Calibration Current Monitor Full Scale Calibration Constant Current Full Scale Calibration Power Limit Calibration |
| A2 Control Board | Power Limit Comparator | All | Power Limit Calibration |
| A2 Control Board | Bias Power Supplies (+ & -15V Supplies) | All | All Calibration Procedures |
| A8 HP-IB Board | Voltage Monitor Buffer | All | Voltage Monitor Zero Calibration Remote Readback Zero Calibration Constant Voltage Full Scale Calibration Voltage Monitor and Remote Readback Full Scale Calibration Constant Voltage Zero Calibration |
| A8 HP-IB Board | Analog Multiplexer | All | Remote Readback Zero Calibration Constant Voltage Full Scale Calibration Voltage Monitor and Remote Readback Full Scale Calibration Constant Voltage Zero Calibration |
| A8 HP-IB Board | Readback DAC | All | Remote Readback Zero Calibration Constant Voltage Full Scale Calibration Voltage Monitor and Remote Readback Full Scale Calibration Constant Voltage Zero Calibration |
| A8 HP-IB Board | Voltage DAC | All | Remote Readback Zero Calibration Constant Voltage Full Scale Calibration Voltage Monitor and Remote Readback Full Scale Calibration Constant Voltage Zero Calibration |
| A8 HP-IB Board | Current DAC | All | Constant Current Zero Calibration Constant Current Full Scale Calibration |
| A8 HP-IB Board | U5 | Remote Readback Zero Calibration Constant Voltage Full Scale Calibration Voltage Monitor and Remote Readback Full Scale Calibration Constant Voltage Zero Calibration Constant Current Full Scale Calibration |