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6-20. TOLERANCE CHECK............................................................... 6-18
6-21. AC CALIBRATION AT OTHER FREQUENCIES ................... 6-19
6-22. OPTIMIZING USE OF THE 5450A........................................... 6-19
6-23. Remote Calibration .......................................................................... 6-20
6-24. TIMING CONSIDERATIONS ................................................... 6-23
6-25. REMOTE ERASURE.................................................................. 6-24
6-26. EXAMPLE CALIBRATION PROGRAM.................................. 6-24
6-27. DISASSEMBLY PROCEDURE.......................................................... 6-25
6-28. Case Removal................................................................................... 6-26
6-29. True RMS AC PCA Removal (Option -09 Only)............................ 6-30
6-30. IEEE-488 Interface PCA Removal (Option -05 Only) .................... 6-30
6-31. Main PCA Removal......................................................................... 6-30
6-32. Front Panel Disassembly.................................................................. 6-32
6-33. REASSEMBLY PROCEDURE........................................................... 6-32
6-34. INTERNAL FUSE REPLACEMENT ................................................. 6-36
6-35. EXTERNAL TRIGGER POLARITY SELECTION (Option -05 Only)6-36
6-36. TROUBLESHOOTING ....................................................................... 6-36
6-37. Initial Troubleshooting Procedure.................................................... 6-36
6-38. Diagnostic Self-Tests ....................................................................... 6-41
6-39. Self-Test Descriptions...................................................................... 6-42
6-40. Digital Controller Troubleshooting.................................................. 6-45
6-41. IN-GUARD MICROCOMPUTER SYSTEM............................. 6-45
6-48. DISPLAY SYSTEM.................................................................... 6-49
6-59. ANALOG CONTROL SIGNALS............................................... 6-51
6-62. DC Scaling Troubleshooting............................................................ 6-54
6-63. Track/Hold Troubleshooting............................................................ 6-56
6-64. Ohms Current Source Troubleshooting............................................ 6-56
6-65. Precision Voltage Reference Troubleshooting................................. 6-58
6-66. A/D Converter Troubleshooting....................................................... 6-59
6-67. Power Supply Troubleshooting........................................................ 6-61
6-68. IEEE-488 Interface Troubleshooting (Option -05) .......................... 6-64
6-69. SERVICE POSITION.................................................................. 6-64
6-70. DIAGNOSTIC PROGRAM ........................................................ 6-64
6-71. True RMS AC Troubleshooting (Option -09).................................. 6-66
6-72. SERVICE POSITION.................................................................. 6-66
6-73. MAJOR PROBLEMS.................................................................. 6-67
6-74. MORE OBSCURE PROBLEMS ................................................ 6-69
6-75. Guard Crossing Troubleshooting..................................................... 6-70
6-76. INTERNAL CLEANING..................................................................... 6-70
6-77. Cleaning Printed Circuit Assemblies ............................................... 6-70
6-78. Cleaning After Soldering ................................................................. 6-71
7 List of Replaceable Parts................................................................... 7-1
7-1. INTRODUCTION................................................................................ 7-3
7-2. HOW TO OBTAIN PARTS................................................................. 7-3
7-3. MANUAL STATUS INFORMATION................................................ 7-3
7-4. NEWER INSTRUMENTS................................................................... 7-4
7-5. SERVICE CENTERS........................................................................... 7-4
8 Options and Accessories .................................................................. 8-1
8-1. INTRODUCTION................................................................................ 8-3
8-2. ACCESSORIES ................................................................................... 8-4
8-3. Rack-Mount Kits (Y8834, Y8835 and Y8836)................................ 8-4
8-4. Shielded IEEE-488 Interface Cables (Y8021, Y8022, and Y8023). 8-4