Specifications
1-10
371B Service Manual
Table 1-6: CRT andĂ Readout (Cont.)
Characteristic
Supplemental Information
Performance Requirement
1
m
A to 2 mA
Staircase Current
β
or gm / div
5m to 500K for
β
.
2
m
Simence to 2.5K Simence for gm.
Vertical Cursor
4Ćdigit Collector Current
(f :/ grad)
readout by Dot or Window cursor;
4Ćdigit Vce / Ic or Ic / Vbe readout by fĆLine
cursor;
HORIZ Cursor
(f : intercept)
4Ćdigit Collector Volts or Step Generator Volts
readout by Dot or Window cursor;
4Ćdigit horizontal interception readout by
fĆLine cursor;
OFFSET
4Ćdigit Step Generator / Voltage offset
readout
%Of Collector Peak Volts
4Ćdigit Variable Collector Supply readout
0% to 100%
Table 1-7: PowerĂ Requirements
Characteristic
Description
Power Connection
This instrument is designed for operation from power source with its natural at or near ground
(earth) potential. It is not intended for two phase of multiĆphase system, or across legs of
singleĆphase, three wire system. It is provided with a threeĆwire power code with three
terminal polarized plug for connection to the power source. Third wire directly connected to
instrument frame, and is intended to ground the instrument to protect operating personnel, as
recommended by national and international safety codes.
Table 1-8: Power Ă Source
Characteristic
Description
Line Voltage Range
CAT II
Nominal
Range
Line Fuse
Collector Fuse
240 V
High 216 V to 250 V
250 V, 1 A, Slow
250 V, 2 A, Slow
200 V
Low 180 V to 220 V
250 V, 1 A, Slow
250 V, 2 A, Slow
120 V
High 108 V to 132 V
250 V, 2 A, Slow
250 V, 4 A, Slow
100 V
Low 90 V to 110 V
250 V, 2 A, Slow
250 V, 4 A, Slow
Line Frequency
48.0 Hz to 63.0 Hz
Maximum Power Dissipation
(Fully Loaded)
400 W max.
Maximum line current is 4.5 Arms at 50 Hz, 90 V line, with 5 % clipping.
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...
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