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Ch 93 LO

Measurement 1. Make Hardware Connections

• Turn mainframe power OFF

• Connect DMM leads as shown in Figure 2-7

• Turn mainframe power ON

2. Measure Channel 93 LO Resistance

• Send *RST to multiplexer

• Send CLOS (@nn93) to close chan 93, where nn = card #

• Trigger the DMM with TRIG SGL and note reading

• Send OPEN (@nn93) to open channel 93

• Subtract measured value of (R39 + R42) from DMM reading

• Enter the result in Table 2-2 for Channel 93 LO

Figure 2-7. Ch 93 LO Measurement Connections

Verification Tests 2-9

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 65 66

*E1346-90011* 1
WARNINGS 4
Printing History 4
Safety Symbols 4
Manual Descriptions 5
What’s in this Manual 6
Contents 7
General Information 9
Considerations 10
1-3 General Information 11
Loading and 12
Switching 12
Frequency Effects 12
End of Life 12
Detection 12
Strategy 13
Replacement 13
Multiplexer 14
Description 14
1-7 General Information 15
Recommended 16
Test Equipment 16
Inspection/ 16
Shipping 16
1-9 General Information 17
Guidelines 18
Verification Tests 19
2-2 Verification Tests 20
Performance 21
Verification 21
Test 2-1: Closed 22
Resistance Test 22
Chs 00-47 and 90-92 23
HI Measurements 1 23
Verification Tests 2-5 23
Ch 90-92 24
2-6 Verification Tests 24
Ch 90-92 25
Verification Tests 2-7 25
2-8 Verification Tests 26
Ch 93 LO 27
Verification Tests 2-9 27
Ch 93 GU 28
2-10 Verification Tests 28
2-12 Verification Tests 30
Verification Tests 2-13 31
2-14 Verification Tests 32
Typical Result 33
Verification Tests 2-15 33
Test 2-2: DC 34
Isolation Test 34
Verification Tests 2-17 35
Example: 36
DC Isolation Test 36
2-18 Verification Tests 36
Verification Tests 2-19 37
Test Record 38
Verification Tests 2-21 39
2-22 Verification Tests 40
Verification Tests 2-23 41
2-24 Verification Tests 42
Replaceable Parts 43
3-2 Replaceable Parts 44
Replaceable Parts 3-3 45
3-4 Replaceable Parts 46
Replaceable Parts 3-5 47
3-6 Replaceable Parts 48
Mechanical 49
Locators 49
3-8 Replaceable Parts 50
Equipment 51
Required 51
Agilent E1346A 52
Service 4-3 53
Troubleshooting 54
Techniques 54
Testing the 55
4-6 Service 56
Repair and 57
Maintenance 57
Component 58
Locators and 58
Schematic 58
Diagrams 58
Appendix A 59
Functional 59
Example: DC 65

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Agilent Technologies E1346A Manuale di Servizio Pagina 27

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