Keysight Technologies 668 A Series Manuals

Manuals and User Guides for Keysight Technologies 668 A Series. We have 1 Keysight Technologies 668 A Series manual available for free PDF download: Service Manual

Keysight Technologies 668 A Series Service Manual (165 pages)

GPIB DC Power Supplies

Brand: Keysight Technologies | Category: Power Supply | Size: 25 MB

Limitation of Warranty
4
Exclusive Remedies
4
Safety Considerations
5
Safety Symbol Definitions
6
Printing History
6
Table of Contents
7
Introduction
9
Scope
9
Organization
9
Instrument Identification
9
Related Documents
10
Change Sheet
10
Operating Manual
10
Manual Revisions
10
Firmware Revisions
10
Safety Considerations
11
Conventions
11
Electrostatic Discharge
11
Verification
13
Introduction
13
Tests
13
Test Equipment Required
13
List of Equipment
13
Current-Monitoring Resistor
13
Electronic Load
14
Programming the Tests
15
General Considerations
15
Programming Parameters
15
General Measurement Techniques
15
Performance Test Record Sheets
15
Operation Verification Tests
16
Performance Tests
16
Constant Voltage (CV) Tests
16
Test Setup
16
Test Procedures
16
Constant Current (CC) Tests
21
Test Setup
21
Test Procedures
21
Averaging the CC Measurements
25
Troubleshooting
33
Introduction
33
Localizing the Problem
33
Chapter Organization
33
Test Equipment Required
34
Troubleshooting Procedures
34
Power-On Selftest
34
Description
34
Disabling the Power-On Selftest
34
Using the *TST? Query (GPIB Systems Supplies Only)
34
Troubleshooting Charts
36
Troubleshooting Test Points
36
Bias and Reference Supplies
36
CV/CC Status Annunciators Troubleshooting
55
A3 FET Board Troubleshooting
55
Signature Analysis
58
Introduction
58
Firmware Revisions
58
Test Headers
59
Post-Repair Calibration
64
When Required
64
Inhibit Calibration Jumper
64
Calibration Password
64
Restoring Factory Calibration Constants
64
EEPROM Initialization
65
Transferring Calibration Constants to Factory Preset Locations
65
Disassembly Procedures
70
Tools Required
70
Top Cover
71
Removing Protective RFI Shield (Galvanized Sheet Metal)
71
GPIB Board
71
A4 AC Input Assembly
72
A5 DC RAIL Assembly
72
A6 BIAS Assembly
72
A3 FET Board
72
A10 Control Assembly
73
Front Panel Assembly
73
S1 Line Switch
73
A1 Front Panel Board
73
A1DSP1 LCD Display
74
A1G1 and A1G2 Rotary Controls
74
A1KPD Keypad
74
Output Bus Boards A7, A81 and A9 & Chassis Components
74
Principles of Operation
83
Introduction
83
A2 GPIB Board
83
A1 Front Panel Assembly
84
A10 Control Board
84
Secondary Interface (P/O A10 Board)
84
A4 AC Input Board
87
A5 DC Rail Board
87
A3 FET Board
87
Output Circuits
88
Replaceable Parts
91
Introduction
91
Chapter Organization
91
Reading the Tables
91
How to Order Parts
92
Diagrams
117
Introduction
117
Chapter Organization
117
General Schematic Notes
121
Backdating
151
Index
157

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Measuring Instruments Test Equipment Control Unit Portable Generator

Power Supply

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Keysight Technologies 668 A Series Manuals

Keysight Technologies 668 A Series Service Manual (165 pages)

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