General Information
2-2
371B Service Manual
Program control of almost all of the 371B front-panel settings using GPIB
commands. (Exceptions are those controls intended only for manual
operation, such as INTENSITY, FOCUS and LOOPING COMPENSA-
TION.) Also, curve data can be sent to or received from an external
controller through the GPIB.
Printer interface that permits sending displayed curve data and digital
on-screen readouts to a printer without having to use an external controller.
Other features such as cursor measurement readout and diagnostic routines.
Related Manuals
In addition to this service manual, the following manual supports the 371B.
371B User Manual.
This manual provides information that enables you to
effectively and efficiently use the measurement features of the 371B. Information
is presented in an order in which a first-time user can quickly learn measurement
concepts and begin applying the 371B to a particular measurement application.
The 371B consists of two large components: a main unit and a test fixture unit.
The main unit contains front and rear panel controls, indicators and connectors, a
display CRT, and the control electronics.
Front and Rear Panels.
To use the 371B effectively, you need a clear understand-
ing of the functions and meanings of the operator controls, indicators and
connectors mounted on the front and rear panels. Detailed descriptions are
provided in Chapter 4: Controls, Indicators, and Connectors.
The CRT functions as the display device. It has 10 x 10 graticule markings
etched into its inner surface, the brightness of which can be controlled by the
front-panel GRAT ILLUM (graticule illumination) control. A filter mounted on
the front of the CRT improves display contrast.
The readout area of the display (which also displays setup information) is
divided into two parts:
The readout labels which identify the readout information printed in the
readout area
The readout information which identifies either a specific control setting
(such as 1 A or 1 V), or a measured characteristic of the device under test
(DUT)
371B Components
Main Unit
Summary of Contents for 371B
Page 4: ......
Page 14: ...Service Safety Summary 371B Service Manual...
Page 18: ...Preface 371B Service Manual...
Page 21: ...Specifications...
Page 22: ......
Page 24: ...Product Overview 371B Service Manual...
Page 38: ...Specifications 371B Service Manual...
Page 39: ...General Information...
Page 40: ......
Page 58: ...General Information 371B Service Manual...
Page 59: ...Theory of Operation...
Page 60: ......
Page 62: ...Theory of Operation 3 2 371B Service Manual Figure 3 1 371B Block Diagram...
Page 71: ...Maintenance...
Page 72: ......
Page 101: ...Performance Verification...
Page 102: ......
Page 220: ...Performance Verification 371B Service Manual...
Page 221: ...Options...
Page 222: ......
Page 226: ...Options and Accessories 371B Service Manual...
Page 227: ...Electrical Parts List...
Page 228: ......
Page 235: ...Diagrams...
Page 236: ......
Page 237: ...8 1 371B Service Manual Circuit Board Interconnections 2 2...
Page 238: ...371B Service Manual...
Page 239: ...8 3 371B Service Manual Circuit Board Interconnections 2 2...
Page 240: ...371B Service Manual...
Page 241: ...8 5 371B Service Manual Test Point Adjustment Locations 1...
Page 242: ...8 6 371B Service Manual Test Point Adjustment Locations 2...
Page 243: ...8 7 371B Service Manual Test Point Adjustment Locations 2...
Page 244: ...8 8 371B Service Manual Test Point Adjustment Locations 3...
Page 245: ...8 9 371B Service Manual Troubleshooting Tree...
Page 246: ...8 10 371B Service Manual Troubleshooting Tree Cont...
Page 247: ...8 11 371B Service Manual Troubleshooting Tree Cont...
Page 248: ...371B Service Manual...
Page 249: ...Mechanical Parts List...
Page 250: ......
Page 259: ...9 9 371B Service Manual Figure 9 1 Cabinet Rear 97 96 68...
Page 260: ...371B Service Manual...
Page 261: ...9 11 371B Service Manual Figure 9 2 Display Front 73...
Page 262: ...371B Service Manual...
Page 267: ...9 17 371B Service Manual Figure 9 3 Chassis Ciircuit Board...
Page 268: ...371B Service Manual...
Page 269: ...9 19 371B Service Manual Figure 9 4 Power Supply...
Page 270: ...371B Service Manual...
Page 276: ...Mechanical Parts List 371B Service Manual...
Page 277: ...9 27 371B Service Manual Figure 9 5 Test Fixture 78 78 REV MAR 96 75 72...
Page 278: ...371B Service Manual...
Page 279: ...9 29 371B Service Manual Figure 9 6 Front Porch...
Page 280: ...371B Service Manual...
Page 287: ...371B Service Manual...
Page 288: ...371B Service Manual...
Page 289: ...371B Service Manual 6 5...
Page 290: ...371B Service Manual...