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Keysight N5224B/25B Service Guide
Contents
Personal Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Electrostatic Discharge (ESD) Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Removal and Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Removing the Covers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Removing and Replacing the Front Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Removing and Replacing the A1–A3 and Other Front Panel Subassemblies . . . . . . . . . . . 7-11
Removing and Replacing the A4–A17 Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Removing and Replacing the A18 System Motherboard . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Removing and Replacing the A19 Midplane Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Removing and Replacing the A20 Power Supply Assembly. . . . . . . . . . . . . . . . . . . . . . . . . 7-27
Removing and Replacing the A21 CPU Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-29
Removing and Replacing the A22 GPIB Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-31
Removing and Replacing the A23 Test Set Motherboard. . . . . . . . . . . . . . . . . . . . . . . . . . . 7-33
Removing and Replacing the A24 IF Multiplexer Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36
Removing and Replacing the A25 HMA26.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38
Removing and Replacing the A26 Splitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
Removing and Replacing the A27 and A28 Mixer Bricks . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
Removing and Replacing the A29–A32 Receiver Couplers and Receiver Coupler Mounting
Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-46
Removing and Replacing the A33–A36 Test Port Couplers . . . . . . . . . . . . . . . . . . . . . . . . . 7-48
Removing and Replacing the A37 Reference Mixer Switch . . . . . . . . . . . . . . . . . . . . . . . . . 7-50
Removing and Replacing the A38–A41 Source Attenuators and the A46–A49 Receiver
Attenuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-52
Removing and Replacing the A42–A45 Bias Tees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
Removing and Replacing the A55 Solid State Drive (SSD) . . . . . . . . . . . . . . . . . . . . . . . . . 7-57
Removing and Replacing the A70 or A75 Low Frequency Extension (LFE) Board . . . . . . . 7-59
Removing and Replacing the A71–A74 Bias Tee Combiners . . . . . . . . . . . . . . . . . . . . . . . . 7-65
Removing and Replacing the Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-70
Removing and Replacing the Front Panel LED Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-72
Removing and Replacing the Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-74
Removing and Replacing the Lithium Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-76
Post-Repair Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-78
Resetting the Mechanical Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-85
EEPROM Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-86
Содержание N5224B
Страница 3: ...3...
Страница 4: ...4...
Страница 12: ...12 Keysight N5224B 25B Service Guide Contents...
Страница 84: ...3 52 Keysight N5224B 25B Service Guide Tests and Adjustments Adjustments 3...
Страница 145: ...Keysight N5224B 25B Service Guide 4 61 Troubleshooting This page intentionally left blank...
Страница 212: ...5 50 Keysight N5224B 25B Service Guide Theory of Operation Receiver Group Operation 5 Figure 5 17 4 Port Receiver Group...
Страница 213: ...Keysight N5224B 25B Service Guide 5 51 Theory of Operation Receiver Group Operation Figure 5 18 2 Port Receiver Group...
Страница 220: ...5 58 Keysight N5224B 25B Service Guide Theory of Operation Power Supply Group Operation 5...
Страница 225: ...Keysight N5224B 25B Service Guide 6 5 Replaceable Parts Rebuilt Exchange Assemblies Figure 6 1 Module Exchange Procedure...
Страница 490: ...6 270 Keysight N5224B 25B Service Guide Replaceable Parts Replaceable Parts Listings 6...
Страница 608: ...8 102 Keysight N5224B 25B Service Guide General Purpose Maintenance Procedures Correction Constants 8...
Страница 612: ...Appendix 4 Service Guide EEPROM Address Assignments and Location N5224 5A B PNA and N5244 5A B PNA X Instruments...
Страница 613: ...Installation Note Xxxxx xxxxx 3...