Specifications
371B Service Manual
1-7
Table 1-2: Step ĂGenerator (Cont.)
Characteristics
Supplemental Information
Performance Requirements
Voltage Mode
Provides normal voltage staircase step every
time.
Step Amplitude Range
200 mV to 5 V in a 1-2-5 sequence.
Selected by STEP/OFFSET AMPLITUDE
SWITCH.
Short Circuit Current Limiting
100 mA + 50 %, -20 %
Maximum Voltage
10 times STEP AMPLITUDE
With 5 V STEP AMPLITUDE setting.
20 times STEP AMPLITUDE
Except 5 V STEP AMPLITUDE setting.
Ripple plus Noise
Within 1 % of STEP AMP 10 mV
Check by Oscilloscope with 20 MHz
bandwidth.
1
Pulsed Current Response for high DUT resistance. The specific degradation occurs when the DUT resistance (Rdut) is
greater than Current sense resistor (Rsense) of the amplifier by 10 times.
The time constants for the rise time and fall time above is given as Tdut = T0 * (1 + Rdut/Rsense) where Tdut is the time
constants for DUT with Rdut resistance and T0 is the time constants for the DUT with zero resistance.
The Current sense resistors are listed as following table.
Rsense
STEP AMPLITUDE (with STEP MULTI .1X on) setting
0.1
W
2 A and 1 A STEP (200 mA and 100 mA STEP)
1.0
W
500, 200 and 100 mA STEP (50, 20 and 10 mA STEP)
10
W
50, 20 and 10 mA STEP (5, 2 and 1 mA STEP)
100
W
5, 2 and 1 mA STEP (500, 200 and 100
m
A STEP)
1.0 k
W
500, 200 and 100
m
A STEP (50, 20 and 10
m
A STEP)
10 k
W
50, 20 and 10
m
A STEP (5, 2 and 1
m
A STEP)
100 k
W
5, 2 and 1
m
A STEP (500, 200 and 100 nA STEP)
Table 1-3: VerticalĂ Deflection ĂSystem
Characteristic
Performance Requirement
Supplemental Information
Collector Current (Ic) Range
Varies in Collector Supply Peak Power Watts
3 kWpeak power watts
1 A/div to 50 A/div
300 Wpeak power watts
500 mA/div to 5 A/div
30 Wpeak power watts
100
m
A/div to 5 mA/div
3 Wpeak power watts
10
m
A/div to 500
m
A/div
0.3 Wpeak power watts
10
m
A/div to 500
m
A/div
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...
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Page 259: ...9 9 371B Service Manual Figure 9 1 Cabinet Rear 97 96 68...
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Page 261: ...9 11 371B Service Manual Figure 9 2 Display Front 73...
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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...
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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...
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Page 279: ...9 29 371B Service Manual Figure 9 6 Front Porch...
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