Agilent Technologies HP 3325B Manual de instrucciones Pagina 161
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Chapter 3 Replacing Assemblies
To Remove the A2 Display Board, Keypads, and Window
Assembly-Level Service Guide 3-11
3
To Remove the A2 Display Board, Keypads,
and Window
1 Remove the cover.
See the section titled “To Remove the Cover” in this chapter.
2 Remove the front bezel.
See the section titled “To Remove the Front Bezel” in this chapter.
3 Note that A2 Display Board Assembly, shown in Figure 3-7, is held in place by
five tabs (two on top and three on bottom) which are part of the front bezel.
Figure 3-7. A2 Display Board, Keypad, and Window Removal
A2 Display Board Assembly
P/O Rubber Keypads (MP6)
Front Bezel (MP4)
Window (MP
5)
Cap
BNC Nuts (H3)
P
/O Rubber Keypads (MP6)
(Shown with
Optional Channel 3
)
- Printed in Malaysia 1
- Agilent 53131A/132A/181A 3
- Assembly-Level Service Guide 3
- DECLARATION OF CONFORMITY 6
- Contents 10
- 2 Service 11
- 3 Replacing Assemblies 13
- 4 Retrofitting Options 13
- 5 Replaceable Parts 14
- 6 Backdating 14
- How to Use This Guide 17
- How to Order Guides 19
- Hardware 22
- Accessories Supplied 23
- Accessories Available 23
- Performance Tests 25
- Complete Performance Tests 27
- Optional GPIB Verification 27
- Recommended Calibration Cycle 27
- Test Record 27
- Equipment Required 28
- Power-On Self Tests 29
- P 53131A/132A 30
- P 53181A 31
- HP 3458A 32
- Counter Setup 34
- External Timebase Tests 36
- HP53131A/132 42
- Pulse Generator 42
- HP 3325B 44
- Synthesizer 44
- (Agilent 53131A/132A Only) 46
- 050 only) 57
- 124 only) 58
- Channel 2 62
- Volt Peak 2 63
- (Optional) 64
- (Page 1 of 6) 65
- (Page 2 of 6) 66
- (Page 3 of 6) 67
- (Page 4 of 6) 68
- (Page 5 of 6) 69
- (Page 6 of 6) 70
- (Agilent 53181A Only) 75
- HP 8663A 76
- Synthesized Signal Generator 76
- Frequency Sensitivity 82
- (Page 1 of 4) 95
- (Page 2 of 4) 96
- (Page 3 of 4) 97
- (Page 4 of 4) 98
- Introduction 100
- To Provide Repair Information 101
- On / Stby 104
- Scale & 106
- To Unsecure for Calibration 107
- HP 59992A J06 110
- Time Interval Calibrator 110
- HP 53131A/132A 110
- To Secure Against Calibration 111
- To View the Calibration Count 112
- DC Power Supply 116
- Counter Digital Multimeter 116
- To Calibrate Time Interval 117
- CAL: TI QUIK? Calibration 118
- Equipment 118
- CAL: TI FINE? Calibration 119
- Channel 1 121
- Chapter 2 Service 125
- for Channel 1 129
- HP 53181A 131
- Digital Multimeter 131
- Safety Considerations 134
- Recommended Test Equipment 135
- Repair Considerations 136
- Electrostatic Discharge 136
- Surface Mount Repair 136
- After Service Considerations 137
- Product Safety Checks 137
- Product Performance Checks 137
- Service Center 138
- Troubleshooting the Counter 143
- Motherboard 144
- Assembly 144
- To Run the Test-All Self Test 147
- Replacing Assemblies 151
- Tools Required 153
- Do This First 153
- To Remove the Cover 154
- SERIAL PLATE 155
- To Remove the Front Bezel 156
- Rubber foot 166
- A4 AC Power 166
- Supply Assembly 166
- (Option 002) 167
- (Options 001, 010, and 012) 169
- A6 High Stability 170
- Timebase Assembly 170
- Retrofitting Options 175
- Preliminary Procedure 178
- Retrofitting Procedure 179
- Procedure 186
- Jumper cap 187
- Plug (MP9) 189
- Replaceable Parts 193
- Exchange Assemblies 194
- Reference Designations 195
- How To Order A Part 196
- Cabinet Parts and Hardware 198
- Chapter 5 Replaceable Parts 199
- Assemblies) 201
- Backdating 203
- Manual Changes 204
- Older Instruments 204
- Backdating Hardware 205
- CHANGE 3 (New TCXO boards) 206
- Option 002 208
- Option 015 208
- Option 030 208
- Option 050 208
- Backdating Firmware 210
- Chapter 6 Backdating 211
- HP 53131A 213
- HP53131A 215
- Counter 215
- HP 8130A 215
- Pulse Generator 215
- Backdating Specifications 218
- Instrument Inputs (Continued) 223
- Time Base 224
- Measurement Specifications 225
- Input Frequency (Hz) 226
- Frequency Error (Hz) 227
- Time Interval 229
- Frequency Ratio: 229
- Pulse Width 230
- Rise/Fall Time 230
- Totalize 231
- Peak Volts 231
- Duty Cycle 231
- Trigger Level Timing Errors 232
- ⁄⁄⁄⁄⁄⁄⁄⁄ 233
- Gate Time 234
- Measurement Throughput 234
- Measurement Arming 234
- Measurement Statistics 235
- Measurement Limits 235
- General Information 236
- Agilent 53181A Specifications 237
- Worst Case RMS Resolution 242
- Frequency Error (Hz) 242
- Input Frequency 242
- Measurement Definitions 245
- NUMERICS 249
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