Page 1 Agilent 53131A/132A/181A 225 MHz Counters Assembly-Level Service Guide Manual Part Number 53131-90039 Printed in Malaysia...
Page 2 NOTES...
Page 3 Agilent 53131A/132A/181A Assembly-Level Service Guide This guide describes how to service the Agilent 53131A and Agilent 53132A Universal Counters, and the Agilent 53181A Frequency Counter. Agilent 53131A/132A/181A 225 MHz Counter...
Page 4 Agilent Technologies, Inc. Certification Disconnect the product from WARNING All Rights Reserved. Reproduction, operating power before cleaning. Agilent Technologies certifies that BODILY INJURY OR DEATH adaptation, or translations without this product met its published MAY RESULT FROM prior written permission is...
Page 5 Product maintenance agreements and PROTECTIVE EARTH resulting from (a) improper or customer assistance agreements are TERMINAL WILL CAUSE inadequate maintenance or available for Agilent Technologies A POTENTIAL SHOCK calibration, (b) software, interfacing, products. HAZARD THAT COULD parts or supplies not supplied by...
Page 6 The product was tested in a typical configuration with Agilent Technologies test systems. July 31, 2001 Date Art Nanawa, Product Regulations Manager For further information, please contact your local Agilent Technologies sales office, agent or distributor. Authorized EU-representative: Agilent Technologies Deutschland GmbH, Herrenberger Stra β e 130, D 71034 Böblingen, Germany...
Page 7: Table Of Contents
Introduction Operational Verification Complete Performance Tests Optional GPIB Verification Recommended Calibration Cycle Test Record Equipment Required Agilent 53131A/132A/181A Operational Verification Power-On Self Tests Run Self Test Termination Check External Arm Test (Agilent 53131A/132A Only) 1-10 Equipment 1-10 Assembly-Level Service Guide...
Page 8 Test 2: Trigger Level (Agilent 53131A/132A Only) 1-19 Equipment 1-19 Counter Setup 1-19 Procedure 1-20 Test 3: Channels 1 and 2 Frequency Sensitivity (Agilent 53131A/132A Only) 1-22 Equipment 1-22 Counter Setup 1-22 100 kHz to 100 MHz Sensitivity for Agilent 53131A/132A...
Page 9 53131A/132A Only) 1-30 Equipment 1-30 Counter Setup 1-30 100 MHz to 2.5 GHz Sensitivity for Agilent 53131A/132A Option 030 only 1-31 2.7 to 3.0 GHz Sensitivity for Option 030 only 1-32 200 MHz to 5.0 GHz Sensitivity for Agilent 53131A/132A (Option...
Page 10 Contents Agilent 53181A Complete Performance Tests 1-47 Test 1: Trigger Level (Agilent 53181A Only) 1-48 Equipment 1-48 Counter Setup 1-48 Procedure 1-49 Test 2: Channel 1 Frequency Sensitivity (Agilent 53181A Only) 1-51 Equipment 1-51 Counter Setup 1-51 100 kHz to 100 MHz Sensitivity for Agilent 53181A 1-52 100 MHz to 200 MHz Sensitivity for Agilent 53181A 1-54...
Page 11 Agilent 53181A Performance Test Record 1-71 Service Introduction Returning the Instrument to Agilent Technologies for Service To Provide Repair Information To Pack in the Original Packaging Materials To Pack in the Commercially Available Materials About the Agilent 53131A/132A Calibration Menu...
Page 12 Contents CAL: TI QUIK? Calibration 2-20 Equipment 2-20 CAL: TI FINE? Calibration 2-21 Equipment 2-21 To Calibrate the Standard Timebase 2-23 To Calibrate the High Stability Timebase Option (Medium, High, or Ultra-High) 2-24 About the Agilent 53181A Calibration Menu 2-25 Overview of the Agilent 53181A Calibration Menu 2-25 The Agilent 53181A Calibration Menu Tree...
Page 13 Contents Product Performance Checks 2-39 Assembly Identification and Location 2-40 Troubleshooting the Counter 2-45 Power Supply Check 2-45 Overview of the Self-Test Routines 2-47 Diagnosing the Faulty Assembly by Using the Self Tests 2-49 To Run the Test-All Self Test 2-49 To Run the Individual Self Tests 2-50...
Page 14 Option 060 Rear Terminals Parts 4-14 Replaceable Parts Introduction Exchange Assemblies Reference Designations Replaceable Parts How To Order A Part Parts Identification Contacting Agilent Technologies 5-5 Cabinet Parts and Hardware Backdating Introduction Manual Changes Older Instruments Backdating Hardware Backdating Firmware Backdating Specifications...
Page 15 Contents Measurement Specifications Measurement Definitions 7-12 Measurement Arming and Processing 7-14 General Information 7-16 Agilent 53181A Specifications Introduction Instrument Inputs Time Base Measurement Specifications Measurement Definitions Measurement Arming and Processing 8-10 General Information 8-11 Index Assembly-Level Service Guide...
Page 16 Contents Assembly-Level Service Guide...
Page 17: Preface
Preface This guide provides assembly-level service information for the Agilent 53131A and Agilent 53132A Universal Counters, and the Agilent 53181A Frequency Counter. How to Use This Guide Repair Strategy This service guide is designed to isolate failures to the assembly level only.
Page 18: Instruments Covered By This Guide
If a required change sheet is missing, contact your nearest Agilent Technologies Sales Office listed at the back of this guide. Instruments having a serial prefix lower than that listed on the title page are covered in Chapter 6, “Backdating.”...
Page 19: How To Order Guides
Preface Chapter 7, “Agilent 53131A/132A Specifications,” lists all the specifications and operating characteristics for the Agilent 53131A/132A Universal Counter. Chapter 8, “Agilent 53181A Specifications,” lists all the specifications and operating characteristics for the Agilent 53181A Frequency Counter. How to Order Guides The part number for this guide is listed in the Certification and Warranty page (located on the back of the title page) and on the rear cover of this guide.
Page 20: Description Of The 225 Mhz Counters
3.0 GHz (Option 030); 5.0 GHz (Option 050) or 12.4 GHz (Option 124).” For the Agilent 53131A, frequency and time interval resolutions are 10 digits in one second and 500 picoseconds, respectively. The Agilent 53131A provides users with a GPIB measuring speed of 200 measurements per second, and is suitable for bench- top operation and lower-volume ATE operation.
Page 21 Programmable control is performed via a GPIB. The GPIB and a talk-only RS-232C serial port are standard for the Agilent 53131A/132A/181A. The serial port is for printing measured and analyzed data on serial printers, or for outputting an out-of- limit signal.
Page 22: Options
Rack Mount Kit, Option 1CM (Agilent part number 5063-9240) For the Agilent 53131A/132A Option 030, front and rear terminals can exist for Channel 1 and 2. The optional Channel 3 can be configured as rear terminals only or front terminals only. For the Agilent 53181A, front and rear terminals can exist for Channel 1.
Page 23: Support
Preface Support • 5-year Return to Agilent Technologies for Repair, Option W50 • 5-year Return to Agilent Technologies for Calibration, Option W52 Accessories Supplied and Available Accessories Supplied • Power cord, 2.3 meters Accessories Available • Agilent 34161A Accessory Pouch •...
Page 24 Preface Assembly-Level Service Guide...
Page 25: Performance Tests
Performance Tests Verifying Specifications...
Page 26: Introduction
Introduction This chapter provides procedures to test the electrical performance of the Agilent 53131A/132A Universal Counter and Agilent 53181A Frequency Counter, using the specifications listed in Chapter 7, “Agilent 53131A/132A Specifications,” and Chapter 8, “Agilent 53181A Specifications,” of this guide.
Page 27: Complete Performance Tests
The results of the operational verification, complete performance tests, and GPIB verification test should be recorded on a copy of the Performance Test Record, located at the end of each (i.e., Agilent 53131A/132A and Agilent 53181A) complete performance tests section in this chapter.
Page 28: Equipment Required
Chapter 1 Performance Tests Equipment Required Equipment Required Table 1-1. Recommended Test Equipment Instrument Required Characteristics Recommended Model Synthesizer DC to 13 MHz Agilent 3325B OV, P, T Synthesized Signal Generator 100 kHz to 2560 MHz Agilent 8663A OV, P, T Pulse Generator 5 ns pulse width Agilent 8130A or equivalent OV, C...
Page 29: Agilent 53131A/132A/181A Operational Verification
Chapter 1 Performance Tests Agilent 53131A/132A/181A Operational Verification Agilent 53131A/132A/181A Operational Verification The operational verification is an abbreviated series of checks that may be performed to give a high degree of confidence that the instrument is operating properly without performing the complete performance tests.
Page 30 Freq and Ch1 annunciators. If a fail message is displayed, refer to the troubleshooting section in Chapter 2, “Service,” of this guide. For Agilent 53131A/132A, mark Pass or Fail in the Agilent 53131A/132A Performance Test Record on page 1-41, Test 1. 6’...
Page 31 Record on page 1-71, Test 2. NOTE The remaining steps apply to the Agilent 53131A and Agilent 53132A only since the Agilent 53181A does not have a standard Channel 2 input. For the Agilent 53181A, proceed to the following “Run Self Test” section.
Page 32: Run Self Test
HP 3458A BNC - to - Dual Counter Digital Multimeter Banana Plug Agilent 53131A/132A is shown in above figure. This setup for the Agilent 53181A requires a connection to Channel 1 only. Figure 1-2. Termination Check Setup Assembly-Level Service Guide...
Page 33 For Agilent 53181A, mark Pass or Fail in the Agilent 53181A Performance Test Record on page 1-71, Test 4b. Repeat steps 3 through 9 for Channel 2 for the Agilent 53131A/132A Counter ONLY since the Agilent 53181A Counter does not have a standard Channel 2.
Page 34: External Arm Test (Agilent 53131A/132A Only)
Chapter 1 Performance Tests Agilent 53131A/132A/181A Operational Verification External Arm Test (Agilent 53131A/132A Only) This test verifies the External Arm port of the Agilent 53131A and Agilent 53132A Counter is operational. Equipment Agilent 8663A Synthesized Signal Generator Agilent 8130A Pulse Generator (or equivalent) Agilent 10100C 50Ω...
Page 35: Procedure
Connect the equipment as shown in Figure 1-3. HP 8130A Pulse Generator Output HP 8663A 50Ω Synthesized Signal Generator Feedthrough Ext Arm (rear panel) Counter Channel 1 Output N-to-BNC Connector Figure 1-3. External Arm Test Setup (Agilent 53131A/132A Only) Assembly-Level Service Guide 1-11...
Page 36: External Timebase Tests
Send a single pulse by pressing the MAN key on the Agilent 8130A, and observe that with each press the Gate annunciator flashes. The Counter should display approximately 1000. For Agilent 53131A/132A, mark Pass or Fail in the Agilent 53131A/132A Performance Test Record on page 1-41, Test 7. Disconnect the test setup.
Page 37: Mhz External Timebase Input
2 MHz, 100 mV rms square wave signal. Verify the Counter displays a reading of approximately 2 MHz and the ExtRef annunciator is lit. For Agilent 53131A, mark Pass or Fail in the Agilent 53131A/132A Performance Test Record on page 1-41, Test 8a. Assembly-Level Service Guide...
Page 38: Mhz External Timebase Input
On the Counter, press Run key. Verify the Counter displays a reading of approximately 2 MHz and the ExtRef annunciator is lit. For Agilent 53131A, mark Pass or Fail in the Agilent 53131A/132A Performance Test Record on page 1-41, Test 8b. 3’...
Page 39: 10 Mhz External Timebase Input For The Agilent 53132A
2 MHz, 100 mV rms square wave signal. Verify the Counter displays a reading of approximately 2 MHz and the ExtRef annunciator is lit. Mark Pass or Fail in the Agilent 53131A/132A Performance Test Record on page 1-41, Test 8d. Disconnect the test setup.
Page 40: Agilent 53131A/132A Complete Performance Tests
Agilent 53131A/132A Complete Performance Tests Agilent 53131A/132A Complete Performance Tests The specifications of the Agilent 53131A/132A Universal Counter can be verified by performing the performance tests provided in this section. Table 1-2 lists a summary of the Agilent 53131A/132A performance tests.
Page 41: Test 1: Time Interval (Agilent 53131A/132A Only)
Chapter 1 Performance Tests Test 1: Time Interval (Agilent 53131A/132A Only) Test 1: Time Interval (Agilent 53131A/132A Only) This test verifies the Time Interval specifications between Channels 1 and 2. Equipment Agilent 8130A Pulse Generator (or equivalent) Agilent 10503A BNC Cable Counter Setup Cycle the POWER key to preset the Counter.
Page 42: Procedure
The Agilent 53132A Counter should display 0.1500 µs ±0.0025 µs. Record this value in the appropriate place in the Performance Test Record (Test 1, Line 1 for Agilent 53131A or Test 1, Line 2 for Agilent 53132A). Disconnect the test setup.
Page 43: Test 2: Trigger Level (Agilent 53131A/132A Only)
Chapter 1 Performance Tests Test 2: Trigger Level (Agilent 53131A/132A Only) Test 2: Trigger Level (Agilent 53131A/132A Only) This test verifies the Trigger Level accuracy of the Agilent 53131A and Agilent 53132A Universal Counters. Equipment Agilent 3325B Synthesizer Agilent 10503A BNC Cable Counter Setup Cycle the POWER key to preset the Counter.
Page 44: Procedure
Chapter 1 Performance Tests Test 2: Trigger Level (Agilent 53131A/132A Only) Procedure Connect the output of the Agilent 3325B to Channel 1 of the Counter as shown in Figure 1-6. HP 3325B Synthesizer HP 53131A/132A Counter Channel 1 Channel 2 Output Figure 1-6.
Page 45 Chapter 1 Performance Tests Test 2: Trigger Level (Agilent 53131A/132A Only) In the Counter’s Channel 1 Trigger/Sensitivity menu, change the SLOPE to NEG. Set the Agilent 3325B DC OFFSET to +60 mV. On the Counter, press Run key. Now, decrement the offset on the Agilent 3325B by − 1 mV until the Counter’s Gate annunciator flashes and continue decrementing until the Counter displays a stable reading of approximately 1 MHz.
Page 46: Test 3: Channels 1 And 2 Frequency Sensitivity (Agilent 53131A/132A Only)
Test 3: Channels 1 and 2 Frequency Sensitivity (Agilent 53131A/132A Only) Test 3: Channels 1 and 2 Frequency Sensitivity (Agilent 53131A/132A Only) This set of tests verifies frequency sensitivity specifications of the Agilent 53131A and 53132A Universal Counters. Equipment Agilent 8663A Synthesized Signal Generator Agilent 1250-0780 Type N-to-BNC Connector Agilent 10100C 50Ω...
Page 47: 100 Khz To 100 Mhz Sensitivity For Agilent 53131A/132A
Connect the timebase output of the unit with the better timebase to the timebase reference input of the other unit as shown in Figure 1-7. For this test, make sure you always use the unit (Agilent 53131A/132A or Agilent 8663A) that contains the better 10 MHz timebase as the output source as shown in Figure 1-7.
Page 48 Chapter 1 Performance Tests Test 3: Channels 1 and 2 Frequency Sensitivity (Agilent 53131A/132A Only) Set the Agilent 8663A Signal Generator to output a 100 MHz, − 35.0 dBm sine wave signal (− 20.0 dBm for Option 060 Rear Terminals) to the Counter’s Channel 1 input.
Page 49: 100 Mhz To 200 Mhz Sensitivity For Agilent 53131A/132A
Chapter 1 Performance Tests Test 3: Channels 1 and 2 Frequency Sensitivity (Agilent 53131A/132A Only) If you are testing a Counter with front-panel terminals (Standard), record the reading on Line 2 of the Standard portion of the test record. If you are testing a Counter with rear terminals (Option 060), record the reading on Line 2 of the Option 060 portion of the test record.
Page 50: 200 Mhz To 225 Mhz Sensitivity For Agilent 53131A/132A
Chapter 1 Performance Tests Test 3: Channels 1 and 2 Frequency Sensitivity (Agilent 53131A/132A Only) 200 MHz to 225 MHz Sensitivity for Agilent 53131A/132A Leave the signal generator connected to Channel 1. Change the signal generator settings to 225 MHz at − 30 dBm.
Page 51: Test 4: Channels 1 And 2 Frequency Accuracy (Agilent 53131A/132A Only)
Test 4: Channels 1 and 2 Frequency Accuracy (Agilent 53131A/132A Only) Test 4: Channels 1 and 2 Frequency Accuracy (Agilent 53131A/132A Only) This set of tests verifies the frequency accuracy specifications of the Agilent 53131A and Agilent 53132A Universal Counters. Equipment Agilent 8663A Synthesized Signal Generator Agilent 1250-0780 Type N-to-BNC Connector Agilent 10100C 50Ω...
Page 52: Procedure
Verify the Agilent 53132A Counter reads 1 MHz ±200 µHz. Record the actual reading in the appropriate place in the Performance Test Record (Test 4, Line 1 for Agilent 53131A or Test 4, Line 3 for Agilent 53132A. 1-28 Assembly-Level Service Guide...
Page 53 Verify the Agilent 53132A Counter reads 100 MHz ±15 mHz. Record the actual reading in the appropriate place in the Performance Test Record (Test 4, Line 5 for Agilent 53131A or Test 4, Line 7 for Agilent 53132A). Change the signal generator frequency to 200 MHz.
Page 54: Test 5: Option 030/050/124 Channel 3 Frequency Sensitivity
Test 5: Option 030/050/124 Channel 3 Frequency Sensitivity (Agilent 53131A/132A Only) This test verifies the frequency range, and sensitivity of the optional 3-GHz and 5-GHz Channel 3 (Option 030/050/124) for the Agilent 53131A and the Agilent 53132A Universal Counters. Equipment...
Page 55: 100 Mhz To 2.5 Ghz Sensitivity For Agilent 53131A/132A Option
Chapter 1 Performance Tests Test 5: Option 030/050/124 Channel 3 Frequency Sensitivity (Agilent 53131A/132A Only) 100 MHz to 2.5 GHz Sensitivity for Agilent 53131A/132A Option 030 only Set the Agilent 8663B Synthesized Signal Generator to output a 2500 MHz, − 40 dBm sine wave, and connect the signal to Channel 3 of the Counter as shown in Figure 1-9.
Page 56: 2.7 To 3.0 Ghz Sensitivity For Option 030 Only
Chapter 1 Performance Tests Test 5: Option 030/050/124 Channel 3 Frequency Sensitivity (Agilent 53131A/132A Only) Increase the power level in 5 dB steps until the Counter displays a stable reading of approximately 2.5 GHz. The Counter should display 2.5 GHz at ≤ − 27.0 dBm (10 mVrms).
Page 57: 200 Mhz To 5.0 Ghz Sensitivity For Agilent 53131A/132A (Option 050 Only)
Chapter 1 Performance Tests Test 5: Option 030/050/124 Channel 3 Frequency Sensitivity (Agilent 53131A/132A Only) 200 MHz to 5.0 GHz Sensitivity for Agilent 53131A/132A (Option 050 only) Connect the 8340B Sweep Oscillator to Channel 3 of the counter. Change the settings of the Sweep Oscillator to 5.0 GHz, − 40 dBm.
Page 58: 200 Mhz To 12.4 Ghz Sensitivity For Agilent 53131A/132A (Option 124 Only)
Chapter 1 Performance Tests Test 5: Option 030/050/124 Channel 3 Frequency Sensitivity (Agilent 53131A/132A Only) 200 MHz to 12.4 GHz Sensitivity for Agilent 53131A/132A (Option 124 only) Connect the 8340B Sweep Oscillator to Channel 3 of the counter. Change the settings of the Sweep Oscillator to 12.4 GHz, − 40 dBm.
Page 59: Test 6: Option 030/050/124 Channel 3 Frequency Accuracy
Chapter 1 Performance Tests Test 6: Option 030/050/124 Channel 3 Frequency Accuracy (Agilent 53131A/132A Only) Test 6: Option 030/050/124 Channel 3 Frequency Accuracy (Agilent 53131A/132A Only) This test verifies the frequency accuracy of the optional 3-GHz or 5-GHz Channel 3 (Option 030). Equipment...
Page 60 (Agilent 53131A/132A Only) On the Counter, press Run key. Verify the Agilent 53131A Counter reads 100 MHz ±70 mHz. Verify the Agilent 53132A Counter reads 100 MHz ±20 mHz. Record the actual reading in the Performance Test Record (Test 6, Line 1 for Agilent 53131A or Test 6, Line 2 for Agilent 53132A).
Page 61: Test 7: Peak Volts, Channels 1 And 2 (Agilent 53131A/132A Only)
Test 7: Peak Volts, Channels 1 and 2 (Agilent 53131A/132A Only) Test 7: Peak Volts, Channels 1 and 2 (Agilent 53131A/132A Only) This test verifies the Peak Volts accuracy specification of the Agilent 53131A and Agilent 53132A Universal Counters. Equipment Agilent 3325B Synthesizer Agilent 10100C 50Ω...
Page 62: Volt Peak 1
Chapter 1 Performance Tests Test 7: Peak Volts, Channels 1 and 2 (Agilent 53131A/132A Only) Volt Peak 1 Connect the equipment as shown in Figure 1-10. HP 3325B Synthesizer HP 53131A/132A Counter Channel 2 Channel 1 Output Figure 1-10. Peak Volts Test Setup Set the Agilent 3325B to output a 2 MHz, 2 Vp-p sine wave.
Page 63 Chapter 1 Performance Tests Test 7: Peak Volts, Channels 1 and 2 (Agilent 53131A/132A Only) Volt Peak 2 Remove the signal from Channel 1 of the Counter and connect it to Channel 2. Press Other Meas key until VOLT PEAK 2 is displayed.
Page 64: Agilent 53131A/132A Gpib Verification Program (Optional)
Agilent 53131A/132A GPIB Verification Program (Optional) The GPIB Verification program exercises the Agilent 53131A/132A and through various operating modes via the its GPIB interface. If the Counter successfully completes all phases of the verification program, there is a high probability that the GPIB interface is operating correctly.
Page 65: Agilent 53131A/132A Performance Test Record
Chapter 1 Performance Tests Agilent 53131A/132A Performance Test Record (Page 1 of 6) Agilent 53131A/132A Performance Test Record (Page 1 of 6) Agilent Technologies Model 53131A/132A Universal Counter Serial Number: ___________________________ Repair/Work Order No. ____________________ Test Performed By: _______________________ Temperature: _ ____________________________...
Page 66 − 15 mV Channel 2 2. __________ +15 mV (Agilent 53131A/132A Only) Test 3: Channels 1 and 2 Frequency Sensitivity (Agilent 53131A/132A Only) Standard (Front Panel Terminals) Actual Reading Specification ≤ − 21 dBm (20 mVrms) 100 kHz–100 MHz, Channel 1 1.
Page 67 Chapter 1 Performance Tests Agilent 53131A/132A Performance Test Record (Page 3 of 6) Agilent 53131A/132A Performance Test Record (Page 3 of 6) Complete Performance Tests (Continued) Test Actual Reading Number Test Description Minimum Maximum Channels 1 and 2 Frequency Accuracy...
Page 68 15. __________ 225.000,000,035 MHz Channel 2 224.999,999,965 MHz 16. __________ 225.000,000,035 MHz Test 5: Option 030/050/124 Channel 3 Frequency Sensitivity (Agilent 53131A/132A Only) Actual Reading Specification ≤ − 27 dBm 10 mV rms 100 MHz–2.5 GHz 1. __________ ≤ − 21 dBm 20 mV rms 2.7–3.0 GHz...
Page 69 Chapter 1 Performance Tests Agilent 53131A/132A Performance Test Record (Page 5 of 6) Agilent 53131A/132A Performance Test Record (Page 5 of 6) Complete Performance Tests (Continued) Test Actual Reading Number Test Description Minimum Maximum Option 030 Channel 3 Frequency Accuracy...
Page 70 Chapter 1 Performance Tests Agilent 53131A/132A Performance Test Record (Page 6 of 6) Agilent 53131A/132A Performance Test Record (Page 6 of 6) Complete Performance Tests (Continued) Test Actual Reading Number Test Description Minimum Maximum 12.4 GHz Test (Agilent 53131A): Channel 3 12.399.999 992 MHz...
Page 71: Agilent 53181A Complete Performance Tests
Record the results of the performance tests in the appropriate place on Agilent 53181A Performance Test Record, which starts on page 1-71. (Note: the complete performance tests for the Agilent 53131A/132A Universal Counter begin on page 1-16 of this chapter.)
Page 72: Test 1: Trigger Level (Agilent 53181A Only)
Chapter 1 Performance Tests Test 1: Trigger Level (Agilent 53181A Only) Test 1: Trigger Level (Agilent 53181A Only) This test verifies the Trigger Level accuracy of the Agilent 53181A Frequency Counter. Equipment Agilent 3325B Synthesizer Agilent 10503A BNC Cable Counter Setup Cycle the POWER key to preset the Counter.
Page 73: Procedure
Chapter 1 Performance Tests Test 1: Trigger Level (Agilent 53181A Only) Procedure Connect the output of the Agilent 3325B to Channel 1 of the Counter as shown in Figure 1-11. HP 3325B Synthesizer HP 53181A Counter Channel 1 Output Figure 1-11. Trigger Level Test Setup Set the Agilent 3325B to output a 1 MHz, 80 mVp-p square wave signal.
Page 74 Chapter 1 Performance Tests Test 1: Trigger Level (Agilent 53181A Only) In the Counter’s Channel 1 Trigger/Sensitivity menu, change the SLOPE to NEG. On the Counter, press Run key. Set the Agilent 3325B DC OFFSET to +60 mV. Now, decrement the offset on the Agilent 3325B by − 1 mV until the Counter’s Gate annunciator flashes and continue decrementing until the Counter displays approximately 1 MHz.
Page 75: Test 2: Channel 1 Frequency Sensitivity (Agilent 53181A Only)
Chapter 1 Performance Tests Test 2: Channel 1 Frequency Sensitivity (Agilent 53181A Only) Test 2: Channel 1 Frequency Sensitivity (Agilent 53181A Only) This set of tests verifies frequency sensitivity specifications of the Agilent 53181A Frequency Counter. Equipment Agilent 8663A Synthesized Signal Generator Agilent 1250-0780 Type N-to-BNC Connector Agilent 10100C 50Ω...
Page 76: 100 Khz To 100 Mhz Sensitivity For Agilent 53181A
Chapter 1 Performance Tests Test 2: Channel 1 Frequency Sensitivity (Agilent 53181A Only) 100 kHz to 100 MHz Sensitivity for Agilent 53181A Connect the equipment as shown in Figure 1-12 with the signal generator connected to Channel 1 of the Counter. Input (rear panel) BNC Tee...
Page 77 Chapter 1 Performance Tests Test 2: Channel 1 Frequency Sensitivity (Agilent 53181A Only) Sweep the frequency from 100 kHz to 100 MHz. For Option 060, sweep frequencies from 100 kHz to 225 MHz. The Counter should read frequencies from 100 kHz to 100 MHz at an input power level of ≤...
Page 78: 100 Mhz To 200 Mhz Sensitivity For Agilent 53181A
Chapter 1 Performance Tests Test 2: Channel 1 Frequency Sensitivity (Agilent 53181A Only) 100 MHz to 200 MHz Sensitivity for Agilent 53181A Change the signal generator settings to 110 MHz at − 30 dBm. Increase the power level by 0.1 dB steps until the Counter displays a stable 110 MHz reading.
Page 79: Test 3: Channel 1 Frequency Accuracy (Agilent 53181A Only)
Chapter 1 Performance Tests Test 3: Channel 1 Frequency Accuracy (Agilent 53181A Only) Test 3: Channel 1 Frequency Accuracy (Agilent 53181A Only) This set of tests verifies the frequency accuracy specifications of the Agilent 53181A Frequency Counter. Equipment Agilent 8663A Synthesized Signal Generator Agilent 8340B Sweep Oscillator Agilent 1250-0780 Type N-to-BNC Connector Agilent 10100C 50Ω...
Page 80: Procedure
Chapter 1 Performance Tests Test 3: Channel 1 Frequency Accuracy (Agilent 53181A Only) Procedure Connect the equipment as shown in Figure 1-13 with the signal generator connected to Channel 1 of the Counter. Frequency Standard HP 8340B (switch set to EXT) Sweep Oscillator Output Input...
Page 81 Chapter 1 Performance Tests Test 3: Channel 1 Frequency Accuracy (Agilent 53181A Only) Record the actual reading in the Performance Test Record (Test 3, Line 1). Change the signal generator frequency to 100 MHz. Verify the Counter reads 100 MHz ±70 mHz. Record the actual reading in the Performance Test Record (Test 3, Line 2).
Page 82: Test 4: Option 015/030/050/124 Channel 2 Frequency Sensitivity
Chapter 1 Performance Tests Test 4: Option 015/030/050/124 Channel 2 Frequency Sensitivity Test 4: Option 015/030/050/124 Channel 2 Frequency Sensitivity This test verifies the frequency range and sensitivity of the optional 1.5-GHz (Option 015), 3-GHz (Option 030), 5.0-GHz (Option 050), or 12.4-GHz (Option 124) Channel 2 for the Agilent 53181A Frequency Counter.
Page 83: 100 Mhz To 1.5 Ghz Sensitivity For Option 015 Only
Chapter 1 Performance Tests Test 4: Option 015/030/050/124 Channel 2 Frequency Sensitivity 100 MHz to 1.5 GHz Sensitivity for Option 015 Only Set the Agilent 8663B Synthesized Signal Generator to output a 500 MHz, − 60 dBm sine wave and connect the signal to Channel 2 of the Counter as shown in Figure 1-14.
Page 84: 100 Mhz To 2.7 Ghz Sensitivity For Option 030 Only
Chapter 1 Performance Tests Test 4: Option 015/030/050/124 Channel 2 Frequency Sensitivity Increase the power level in 1 dB steps until the Counter reads 500 MHz. The Counter should display 500 MHz at ≤ − 27.0 dBm (20 mVrms). Sweep the frequencies from 100 MHz to 1.5 GHz. The Counter should read frequencies from 100 MHz to 1.5 GHz at ≤...
Page 85: 2.8 To 3.0 Ghz Sensitivity For Option 030 Only
Chapter 1 Performance Tests Test 4: Option 015/030/050/124 Channel 2 Frequency Sensitivity 2.8 to 3.0 GHz Sensitivity for Option 030 Only Disconnect the Agilent 8663A Synthesized Signal Generator from the Counter (see Figure 1-14), and connect the Agilent 8340B Sweep Oscillator to Channel 3 of the Counter.
Page 86: 200 Mhz To 12.4 Ghz Sensitivity For Option 124 Only
Chapter 1 Performance Tests Test 4: Option 015/030/050/124 Channel 2 Frequency Sensitivity 200 MHz to 12.4 GHz Sensitivity for Option 124 only Connect the 8340B Sweep Oscillator to Channel 2 of the counter. Change the settings of the Sweep Oscillator to 12.4 GHz, − 30 dBm. Increase the power level in 1 dB steps until the Counter displays a stable reading of approximately 12.4 GHz.
Page 87: Test 5: Option 015/030/050/124 Channel 2 Frequency Accuracy (Agilent 53181A Only)
Chapter 1 Performance Tests Test 5: Option 015/030/050/124 Channel 2 Frequency Accuracy (Agilent 53181A Only) Test 5: Option 015/030/050/124 Channel 2 Frequency Accuracy (Agilent 53181A Only) This test verifies the frequency accuracy of the optional 1.5-GHz (Option 015), 3-GHz (Option 030), 5.0 GHz (Option 050), or 12.4 GHz (Option 124) Channel 2 for the Agilent 53181A Frequency Counter.
Page 88: Procedure
Chapter 1 Performance Tests Test 5: Option 015/030/050/124 Channel 2 Frequency Accuracy (Agilent 53181A Only) Procedure Connect equipment as shown in Figure 1-15. Frequency Standard HP 8340B (switch set to EXT) Sweep Oscillator Output Input (rear panel) HP 8663A Synthesized Signal Generator HP 53181A 50Ω...
Page 89: Minimum To Maximum Accuracy Test For Options 030/050/124
Chapter 1 Performance Tests Test 5: Option 015/030/050/124 Channel 2 Frequency Accuracy (Agilent 53181A Only) Change the synthesized signal generator’s frequency to 1.5 GHz. Verify the Counter reads 1.5 GHz ±1 Hz Record the actual reading in the Performance Test (Test 5, Line 2). Disconnect the test setup.
Page 90 Chapter 1 Performance Tests Test 5: Option 015/030/050/124 Channel 2 Frequency Accuracy (Agilent 53181A Only) Procedure Connect equipment as shown in Figure 1-15. (NOTE: For Option 050/124, skip steps 2 through 7. Proceed to step 8.) Set the Agilent 8663A Synthesized Signal Generator to output 200 MHz at − 17.0 dBm.
Page 91 Chapter 1 Performance Tests Test 5: Option 015/030/050/124 Channel 2 Frequency Accuracy (Agilent 53181A Only) (NOTE: For Options 050/124) Set the Agilent 8340B to output 5.0 GHz at − 17 dBm. Verify the Agilent 53181A Counter reads 5.0 GHz ±3 Hz. Record the actual reading in the Performance Test Record (Test 5, Line 5).
Page 92: Agilent 10503A Bnc Cable
Chapter 1 Performance Tests Test 6: Peak Volts, Channel 1 (Agilent 53181A Only) Test 6: Peak Volts, Channel 1 (Agilent 53181A Only) This test verifies the Peak Volts accuracy specification of the Agilent 53181A Frequency Counter. Equipment Agilent 3325B Synthesizer Agilent 10100C 50Ω...
Page 93 Chapter 1 Performance Tests Test 6: Peak Volts, Channel 1 (Agilent 53181A Only) Procedure Connect the equipment as shown in Figure 1-16. HP 3325B Synthesizer HP 53181A Counter Channel 1 Output Figure 1-16. Peak Volts Test Setup Set the Agilent 3325B to output a 2 MHz, 2 Vp-p sine wave, and connect the signal to Channel 1 of the Counter.
Page 94 Chapter 1 Performance Tests Agilent 53181A GPIB Verification Program (Optional) Agilent 53181A GPIB Verification Program (Optional) The GPIB Verification program exercises the Agilent 53181A through various operating modes via the its GPIB interface. If the Counter successfully completes all phases of the verification program, there is a high probability that the GPIB interface is operating correctly.
Page 95 Agilent 53181A Performance Test Record (Page 1 of 4) Agilent 53181A Performance Test Record (Page 1 of 4) Agilent Technologies Model 53181A Frequency Counter Serial Number: ___________________________ Repair/Work Order No. ____________________ Test Performed By: _______________________ Temperature: _ ____________________________ Date: ___________________________________ Relative Humidity: _ _______________________...
Page 96 Chapter 1 Performance Tests Agilent 53181A Performance Test Record (Page 2 of 4) Agilent 53181A Performance Test Record (Page 2 of 4) Complete Performance Tests Test Number Test Description Minimum Actual Reading Maximum Trigger Level: − 15 mV Channel 1 1.
Page 97 Chapter 1 Performance Tests Agilent 53181A Performance Test Record (Page 3 of 4) Agilent 53181A Performance Test Record (Page 3 of 4) Complete Performance Tests Test 4: Option 015/030/050 Channel 2 Frequency Sensitivity (Agilent 53181A Only) Actual Reading Specification ≤ − 27 dBm 100 MHz–1.5 GHz (Option 015 Only) 1.
Page 98 Chapter 1 Performance Tests Agilent 53181A Performance Test Record (Page 4 of 4) Agilent 53181A Performance Test Record (Page 4 of 4) Complete Performance Tests Test Actual Reading Number Test Description Minimum Maximum Peak Volts, Channel 1 (Agilent 53181A Only): Channel 1 −...
Page 99 Service...
Page 100 Troubleshooting the Counter (page 2-45). This section provides you with troubleshooting procedures that isolate the faulty assembly or module. If the instrument is under warranty, return the instrument to Agilent Technologies for service. Refer to the first section of this chapter titled “Returning the Instrument to Agilent Technologies for Service.”...
Page 101 Returning the Instrument to Agilent Technologies for Service To Provide Repair Information If you are shipping the instrument to an Agilent Technologies office for service or repair, call your nearest Agilent Technologies Sales Office to make arrangements. Then tag and package the Agilent 53131A/132A/181A for shipment.
Page 102 Chapter 2 Service Returning the Instrument to Agilent Technologies for Service To Pack in the Original Packaging Materials Whenever possible, repack the instrument in its original packaging for shipment. In any correspondence, refer to the instrument by the model number and complete serial number.
Page 103 Chapter 2 Service Returning the Instrument to Agilent Technologies for Service To Pack in the Commercially Available Materials If the factory packaging materials are not available, you can use commercially available materials for shipping. Wrap the instrument in heavy paper or plastic.
Page 104 This menu does not exist in early versions of the Counter. In the early versions (firmware revisions 3317, 3335, and 3402) of the Agilent 53131A/132A, the CAL: menu item resides in the Utility menu, and there is no calibration security capability.
Page 105 Chapter 2 Service About the Agilent 53131A/132A Calibration Menu The Calibration menu, illustrated on page 2-8, allows you to: • view the calibration security status of the Counter (CAL SECURE or CAL UNSECURE) • initiate the Counter’s calibration routines, which can perform automatic...
Page 106 This menu does not exist in early versions (firmware revisions 3317, 3335, and 3402) of the Agilent 53131A/132A. In the early versions of the Counter, the CAL: menu item resides in the Utility menu, and there is no calibration security capability.
Page 107 Chapter 2 Service About the Agilent 53131A/132A Calibration Menu To View the Calibration Menu and Security Status The Calibration menu is accessed by holding the Scale & Offset key and cycling the POWER key. The first item in the Calibration menu is a message indicating the calibration security status: CAL SECURE or CAL UNSECURE.
Page 108 Chapter 2 Service About the Agilent 53131A/132A Calibration Menu Press any one of the arrow keys until your calibration choice (that is, CAL: OFFS2?, CAL: GAIN 1?, CAL: GAIN 2?, CAL: TI QUIK?, CAL: TI FINE?, or CAL: TIMEBAS?) is displayed.
Page 109 Chapter 2 Service About the Agilent 53131A/132A Calibration Menu The Fine Time Interval Calibration requires a special calibrator signal source to provide input—because it produces eight calibration terms, each tailored to a different combination of input conditions. It requires the synthesizer driving the calibrator to produce a very accurate 10 MHz waveform—because it calibrates the pulse width...
Page 110 Chapter 2 Service About the Agilent 53131A/132A Calibration Menu Equipment and Counter Setup: See Figure 2-1. HP 8130A HP 53131A/132A In A Pulse Generator Counter Output Stop Start HP 59992A J06 Time Interval Calibrator Figure 2-1. Calibration Setup for CAL: TI FINE?
Page 111 Chapter 2 Service About the Agilent 53131A/132A Calibration Menu To Secure Against Calibration Press and hold Scale & Offset key, then cycle POWER key. CAL UNSECURE is displayed. If CAL SECURE is displayed, then the Counter is already secured against calibration and the remaining steps are not applicable.
Page 112 Chapter 2 Service About the Agilent 53131A/132A Calibration Menu To View the Calibration Count Press and hold Scale & Offset key, then cycle POWER key. Press Scale & Offset key until CAL COUNT? is displayed. Press any one of the entry keys (arrow, +/-, Enter) to have a scrolling message appear, indicating what the calibration count is.
Page 113 Chapter 2 Service The Agilent 53131A/132A Calibration Procedures The Agilent 53131A/132A Calibration Procedures First Determine the Counter Firmware Revision Press and hold Recall (Utility) key, then cycle POWER key. REV: n is displayed; where “n” represents the numeric firmware revision code.
Page 114 Chapter 2 Service The Agilent 53131A/132A Calibration Procedures Press the appropriate arrow keys to enter the security code “53131”, for example, if 53131 is the security code by performing the following steps: Press g key four times. The Counter should display CODE: 00000.
Page 115 Chapter 2 Service The Agilent 53131A/132A Calibration Procedures Press Enter key. The Counter momentarily displays CALIBRATING, and then it should display OFFS 1 PASS. If the fail message is displayed, refer to the troubleshooting section in this chapter. To calibrate Channel 2, press any one of the arrow keys until CAL: OFFS 2 ? is displayed.
Page 116 Chapter 2 Service The Agilent 53131A/132A Calibration Procedures To Calibrate the Gain for Channels 1 and 2 Press any one of the arrow keys until CAL: GAIN 1 ? is displayed. Press Enter key. A scrolling message is displayed. Follow the instruction by performing the following steps.
Page 117 Chapter 2 Service The Agilent 53131A/132A Calibration Procedures To calibrate the gain for Channel 2, connect the input or the BNC Tee to Channel 2 of the Counter. Press any one of the arrow keys until CAL: GAIN 2 ? is displayed.
Page 118 Chapter 2 Service The Agilent 53131A/132A Calibration Procedures CAL: TI QUIK? Calibration Press any one of the arrow keys until CAL: TI QUIK? is displayed. Press Enter key. A scrolling message with instructions appears. Follow the instruction by performing the following procedure Connect the Agilent 8130A Pulse Generator output to Channel 1 of the Counter as shown in Figure 2-3.
Page 119 CAL: TI FINE? Calibration Connect the Agilent 8130A Pulse Generator, Agilent 59992A J06 Time Interval Calibrator, and Agilent 53131A/123A Counter as shown in Figure 2-4. Equipment Agilent 8130A Pulse Generator (or equivalent) Agilent 59992A J06 Time Interval Calibrator (or equivalent)
Page 120 Chapter 2 Service The Agilent 53131A/132A Calibration Procedures Set the Agilent 8130A as follows: PERIOD: 100 ns WIDTH: 50 ns Low : − 0.50 V High: 0.50 V Input Mode: Normal Any external timebase connected to the Counter is ignored during this calibration.
Page 121 Chapter 2 Service The Agilent 53131A/132A Calibration Procedures To Calibrate the Standard Timebase Connect the output of a 10 MHz house standard to Channel 1 of the Counter as shown in Figure 2-5. House Standard 10 MHz Reference HP 53131A/132A...
Page 122 Chapter 2 Service The Agilent 53131A/132A Calibration Procedures To Calibrate the High Stability Timebase Option (Medium, High, or Ultra-High) NOTE Allow the Counter to warm up for approximately 24 hours before performing this calibration. This calibration is unlikely to fail, unless the Counter is not warmed Connect the output of a 10 MHz house standard to Channel 1 of the Counter as shown in Figure 2-5.
Page 123 Chapter 2 Service About the Agilent 53181A Calibration Menu About the Agilent 53181A Calibration Menu If you are familiar with the information provided in this section, proceed to the NOTE section titled “The Agilent 53181A Calibration Procedures” (page 2-31) to calibrate your Counter.
Page 124 Chapter 2 Service About the Agilent 53181A Calibration Menu • change the security code by entering a new code while the Counter is unsecured (CODE: ) • view the calibration count, which indicates the number of times that the Counter has been calibrated (CAL COUNT?).
Page 125 Chapter 2 Service About the Agilent 53181A Calibration Menu The Agilent 53181A Calibration Menu Tree Turn power off, press and hold Scale & Offset key, then press POWER key to access NOTE this menu. POWER Scale & Offset On / Stby CAL SECURE CAL UNSECURE CAL: OFFS1?
Page 126 Chapter 2 Service About the Agilent 53181A Calibration Menu To View the Calibration Menu and Security Status The Calibration menu is accessed by holding the Scale & Offset key and cycling the POWER key. The first item in the Calibration menu is a message indicating the calibration security status: CAL SECURE or CAL UNSECURE.
Page 127 Chapter 2 Service About the Agilent 53181A Calibration Menu To Initiate the Calibration Routines Press and hold Scale & Offset key, then cycle POWER key. Unsecure for calibration by performing the preceding procedure. Press Scale & Offset key until CAL: OFFS1? is displayed. Press any one of the arrow keys until your calibration choice (that is, CAL: GAIN 1?, or CAL: TIMEBAS?) is displayed.
Page 128 Chapter 2 Service About the Agilent 53181A Calibration Menu To Change to New the Security Code Press and hold Scale & Offset key, then cycle POWER key. Unsecure for calibration by the using the procedure described in the section titled “To Unsecure for Calibration.” Press Scale &...
Page 129 Chapter 2 Service The Agilent 53181A Calibration Procedures The Agilent 53181A Calibration Procedures First Determine the Counter Firmware Revision Press and hold Recall (Utility) key, then cycle POWER key. REV: n is displayed; where “n” represents the numeric firmware revision code. After completing the instrument calibration, BE SURE to secure the calibration by NOTE performing the procedure in the section titled “To Secure Against Calibration”...
Page 130 Chapter 2 Service The Agilent 53181A Calibration Procedures Press key once, and then press key three times. The Counter should display CODE: 53000. d. Press key once, and then press key once. The Counter should display CODE: 53100. Press key once, and then press key eight times.
Page 131 Chapter 2 Service The Agilent 53181A Calibration Procedures To Calibrate the Gain for Channel 1 Press any one of the arrow keys until CAL: GAIN 1 ? is displayed. Press Enter key. A scrolling message is displayed. Follow the instruction by performing the following steps.
Page 132 Chapter 2 Service The Agilent 53181A Calibration Procedures Disconnect the calibration setup. This completes the Gain Calibration procedure. Depending on which timebase the Counter contains, proceed to either the following procedure “To Calibrate the Standard Timebase” or the “To Calibrate the High Stability Timebase Option (Medium, High, or Ultra-High)”procedure (page 2-35) to calibrate the timebase.
Page 133 Chapter 2 Service The Agilent 53181A Calibration Procedures To Calibrate the High Stability Timebase Option (Medium, High, or Ultra-High) NOTE Allow the Counter to warm up for approximately 24 hours before performing this calibration. This calibration is unlikely to fail, unless the Counter is not warmed Connect the output of a 10 MHz house standard to Channel 1 of the Counter as shown in Figure 2-7.
Page 134 Chapter 2 Service Pre-Troubleshooting Information Pre-Troubleshooting Information This section contains the following pertinent troubleshooting information: • Safety Considerations • Recommended Test Equipment • Repair Considerations • After Service Considerations • Assembly Identification and Location Safety Considerations Although this instrument has been designed in accordance with international safety standards, this guide contains information, cautions, and warnings which must be followed to ensure safe operation and to retain the instrument in a safe condition.
Page 135 (for example, fire and electric shock). Recommended Test Equipment Test equipment recommended for testing and troubleshooting the Agilent 53131A/132A/181A is listed in Chapter 1, “Performance Tests.” Substitute equipment may be used if it meets or exceeds the required characteristics listed in Table 1-1.
Page 136 Surface mount components should only be removed using soldering irons or desoldering stations expressly designed for surface mount components. Use of conventional solder removal equipment will almost always result in permanent damage to the printed circuit board and will void your Agilent Technologies factory warranty. Disassembly and Reassembly Specifics Refer to the Chapter 3, “Replacing Assemblies,”...
Page 137 Chapter 2 Service Pre-Troubleshooting Information After Service Considerations Product Safety Checks The following safety checks must be performed after any troubleshooting and repair procedures have been completed to ensure the safe operation of the instrument. WARNING RESISTANCE CHECKS DESCRIBED IN THE FOLLOWING TEXT REQUIRE THAT THE POWER CORD BE CONNECTED TO THE INSTRUMENT AND THAT AC POWER BE DISCONNECTED.
Page 138 10811-69260 * Exchange part availability subject to change without notice. Contact your local Agilent Technologies Sales Office for current information. ** If the Motherboard needs to be replaced in a unit which contains Options 030, 050, or 124, it must be done at an AgilentTechnologies Service Center.
Page 139 * Exchange part availability subject to change without notice. Contact your local Agilent Technologies Sales Office for current information. ** If the Motherboard needs to be replaced in a unit which contains Options 030, 050, or 124, it must be done at an Agilent Technologies Service Center.
Page 140 * Exchange part availability subject to change without notice. Contact your local Agilent Technologies Sales Office for current information. ** If the Motherboard needs to be replaced in a unit which contains Options 030, 050, or 124, it must be done at an Agilent Technologies Service Center.
Page 141 Ext Arm Connector J18 Power Supply Assembly Connector A4 AC Power Supply Assembly A3 Option 030/050 Channel 3 Assembly for HP 53131A/132A A3 Option 015/030/050 Channel 2 Assembly for HP 53181A A1 Motherboard Assembly A6 High Stability A3 Option 015/030/050 Channel...
Page 142 A5 DC Power Input Assembly Connector Assembly J6 (Hidden) A4 AC Power Supply Assembly A3 Option 030 Channel 3 Assembly for HP 53131A/132A A3 Option 015/030 Channel 2 Assembly for HP 53181A A1 Motherboard Assembly A6 High Stability A3 Option 015/030/050 Channel...
Page 143 Chapter 2 Service Troubleshooting the Counter Troubleshooting the Counter Power Supply Check WARNING HAZARDOUS VOLTAGES ARE ON THE POWER SUPPLY ASSEMBLY. ONLY SERVICE TRAINED AND QUALIFIED PERSONNEL SHOULD PERFORM THE FOLLOWING PROCEDURE. Remove the power cord from the back of the instrument to disconnect the Counter from the power source.
Page 144 Chapter 2 Service Troubleshooting the Counter / 4 0 / 6 0 / 6 0 R I A Motherboard Assembly Figure 2-9. A4 AC Power Suppy Testpoint Locations on A1 Motherboard Assembly (Bottom View) 2-46 Assembly-Level Service Guide...
Page 145 Chapter 2 Service Troubleshooting the Counter Table 2-4 lists A4 power supply voltages, the corresponding wire color, and the tolerances. Table 2-4. A4 AC Power Supply Voltages Wire Color Voltage Tolerance +5.0 V ±0.250 V +5.0 V ±0.250 V Black 0.0 V ______ Black...
Page 146 Chapter 2 Service Troubleshooting the Counter You can also specify that failure messages be sent to a printer, the RS-232, and the GPIB—if in talk-only (TST PRINT: ON or OFF). There are 13 choices for the TEST: menu item. They are listed and described in the following text.
Page 147 Chapter 2 Service Troubleshooting the Counter INTERP? —test interpolators. KEYPAD? —request user to press all keys. Note, this test is not available if TEST LOOP: is ON. TEST LOOP: must be OFF. PRINT? —send three test lines to a printer via the RS-232. If in talk- only, also send three test lines to a printer via the GPIB.
Page 148 Chapter 2 Service Troubleshooting the Counter To Run the Individual Self Tests Press and hold Recall (Utility) key, then cycle POWER key. If power does not cycle or the display does not light, go to the section titled “Power NOTE Supply Check”...
Page 149 10 MHz HP 53131A/132A Counter (rear panel) Channel 2 Channel 1 BNC Tee Figure 2-11A. Agilent 53131A/132A Self Test Troubleshooting Setup 10 MHz HP 53181A Counter (rear panel) Channel 1 Figure 2-11B. Agilent 53181A Self Test Troubleshooting Setup Assembly-Level Service Guide...
Page 150 Chapter 2 Service Troubleshooting the Counter If the FAIL message is displayed for a test, use Table 2-5 to determine which assembly may need replacing. Table 2-5. Troubleshooting Failure Indicator Assembly at Fault DISP: FAIL A2 Display Board Assembly, or A1 Motherboard Assembly CPU: FAIL A1 Motherboard Assembly ROM: FAIL...
Page 151 Replacing Assemblies Disassembly and Reassembly...
Page 152 Chapter 3 Replacing Assemblies Introduction Introduction This chapter contains the instructions for removing major assemblies in the Agilent 53131A/132A/181A. To install an assembly, reverse the removal instructions. This chapter provides the following disassembly and reassembly procedures: • To Remove the Cover page 3-4 •...
Page 153 Chapter 3 Replacing Assemblies Tools Required Tools Required The following tools are required for these removal and replacement procedures: • Hand TORX®‚ 10 screwdriver (T10) • Hand TORX®‚ 15 screwdriver (T15) • 7-mm spin tight • 14-mm deep-socket spin tight •...
Page 154: To Remove The Cover
Chapter 3 Replacing Assemblies To Remove the Cover To Remove the Cover The following steps are for removing the cover. The cover is removed to access the board and cable assemblies, and all other internal parts. WARNING WHEN THE COVER IS REMOVED FROM THE INSTRUMENT, LINE VOLTAGES ARE EXPOSED WHICH ARE DANGEROUS AND MAY CAUSE SERIOUS INJURY IF TOUCHED.
Page 155 Chapter 3 Replacing Assemblies To Remove the Cover Remove the screw (H1) located at the bottom near the rear of the cover (MP3) as shown in Figure 3-2. Figure 3-2. Bottom View for Cover Removal With one hand gripping the front bezel, pull the cover off with the other hand by sliding the cover backward.
Page 156: To Remove The Front Bezel
Chapter 3 Replacing Assemblies To Remove the Front Bezel To Remove the Front Bezel Remove the cover. See the section titled “To Remove the Cover” in this chapter. Remove the bail handle (MP7) by rotating it to the vertical position and pull the ends outward as shown in Figure 3-3.
Page 157 Chapter 3 Replacing Assemblies To Remove the Front Bezel Remove the BNC nuts (H3), shown in Figure 3-5, from the front panel using the 14-mm deep-socket spin tight. P/O A2 Display Board Cable Figure 3-5. Front Bezel Removal For Counters with the optional 1.5 GHz or 3.0 GHz channel (Option 015 or 030), pull cable W1 out of the front bezel as shown in Figure 3-5.
Page 158 Chapter 3 Replacing Assemblies To Remove the Front Bezel Remove the two screws (H1), located in the sides of the front bezel, using the TORX 15 screwdriver as shown in Figure 3-5. Loosen the screw (H1), shown in Figure 3-5, that helps secure A1 Motherboard Assembly to the chassis to make step 9 (the following step) easier.
Page 159: To Remove A1 Motherboard Assembly
Chapter 3 Replacing Assemblies To Remove A1 Motherboard Assembly To Remove A1 Motherboard Assembly Remove the cover. See the section titled “To Remove the Cover” in this chapter. Remove the Power Supply Assembly. See the section titled “To Remove A4 AC Power Supply Assembly” in this chapter. Remove the front bezel.
Page 160 Chapter 3 Replacing Assemblies To Remove A1 Motherboard Assembly A3 1.5/3.0 GHz Channel Assembly (Option 015/030) A1 Motherboard Assembly Figure 3-6. A1 Motherboard Assembly Removal Remove the BNC nuts (H3), shown in Figure 3-6, from the rear of the chassis using the 14-mm deep-socket spin tight (Opt 015/030 only).
Page 161: To Remove The A2 Display Board, Keypads, And Window
Chapter 3 Replacing Assemblies To Remove the A2 Display Board, Keypads, and Window To Remove the A2 Display Board, Keypads, and Window Remove the cover. See the section titled “To Remove the Cover” in this chapter. Remove the front bezel. See the section titled “To Remove the Front Bezel”...
Page 162 Chapter 3 Replacing Assemblies To Remove the A2 Display Board, Keypads, and Window Pull up on the top portion of the front bezel until the top portion of the display board is free from the top tabs. Pull down on the bottom portion of the front bezel until the display board is free from the bottom tabs.
Page 163: To Remove A3 1.5/3.0/5.0/12.4 Ghz Channel Assembly
Chapter 3 Replacing Assemblies To Remove A3 1.5/3.0/5.0/12.4 GHz Channel Assembly (Option 015/030/050/124) To Remove A3 1.5/3.0/5.0/12.4 GHz Channel Assembly (Option 015/030/050/124) The 1.5 GHz Channel 2 Assembly is available only for the Agilent 53181A NOTE Frequency Counter. Remove the cover. See the section titled “To Remove the Cover”...
Page 164 Chapter 3 Replacing Assemblies To Remove A3 1.5/3.0/5.0/12.4 GHz Channel Assembly (Option 015/030/050/124) A3 3 GHz Channel Assembly (Shown with Option 015/030) Figure 3-8. Optional Channel Input Assembly Removal Disconnect flat-ribbon cable of the optional channel from connector J7 of A1 Motherboard Assembly as shown in Figure 3-8.
Page 165: To Remove A4 Ac Power Supply Assembly
Chapter 3 Replacing Assemblies To Remove A4 AC Power Supply Assembly To Remove A4 AC Power Supply Assembly Remove the cover. See the section titled “To Remove the Cover” in this chapter. Remove the TORX screw (H1) located in the upper-middle of the chassis using the TORX 15 screwdriver as shown in Figure 3-9.
Page 166 Chapter 3 Replacing Assemblies To Remove A4 AC Power Supply Assembly Remove the two TORX screws (H2) on the rear panel using the TORX 10 screwdriver as shown in Figure 3-9. Lift up A4 AC Power Supply Assembly and disconnect its cable from J18 on A1 Motherboard Assembly to remove the power supply assembly as shown in Figure 3-9.
Page 167: To Remove A5 Dc Power Input Assembly (Option 002)
Chapter 3 Replacing Assemblies To Remove A5 DC Power Input Assembly (Option 002) To Remove A5 DC Power Input Assembly (Option 002) Remove the cover. See the section titled “To Remove the Cover” in this chapter. Remove the four TORX 10 screws (H2) that attach A5 DC Power Input Assembly to the side of the chassis as shown in Figure 3-11.
Page 168 Chapter 3 Replacing Assemblies To Remove A5 DC Power Input Assembly (Option 002) DC Power Input Assembly (Option 002) Figure 3-11. DC Power Input Assembly (Option 002) Removal Lift out A5 DC Power Input Assembly and disconnect cable as shown in Figure 3-11.
Page 169: To Remove A6 High Stability Timebase Assembly
Chapter 3 Replacing Assemblies To Remove A6 High Stability Timebase Assembly (Options 001, 010, and 012) To Remove A6 High Stability Timebase Assembly (Options 001, 010, and 012) Remove the cover. See the section titled “To Remove the Cover” in this chapter. Disconnect A6 High Stability Timebase Assembly cable from the J9 connector on A1 Motherboard Assembly as shown in Figure 3-12.
Page 170 Chapter 3 Replacing Assemblies To Remove A6 High Stability Timebase Assembly (Options 001, 010, and 012) A6 High Stability Timebase Assembly 1 - A O IR IS M R AT R AT R SO IF IE D PE R LA IF IE U SA R SO...
Page 171: To Remove The Rear Terminals (Option 060)
Unsolder the lead-end of the cables from their appropriate ground and input pads on the A1 Motherboard Assembly (J16, J17) as shown in Figure 3-13. For the Agilent 53131A/132A unsolder the rear chassis INPUTS 1 cable to J16 and INPUTS 2 to J17.
Page 172 Chapter 3 Replacing Assemblies To Remove the Rear Terminals (Option 060) from Option 015/030 Remove from J17 Remove from J16 (Channel 2 for HP53131A/132A Channel 1 for HP 53181A) (Channel 1 for HP53131A/132A) Figure 3-13. Rear Terminals (Option 060) Removal Options 050 and 124 (5.0 or 12.4 GHz Input) is front panel only.
Page 173 Chapter 3 Replacing Assemblies To Remove the Rear Terminals (Option 060) Loosen and remove the 2940-0256 BNC nuts (H3) that secure the coaxial cable(s) to the rear chassis, using the 14-mm deep-socket spin tight. Pull W2 and washers (H6) out of the rear INPUTS opening(s). Pull the connector-end of W1 and washer (H6) out of the rear INPUTS opening.
Page 174 Chapter 3 Replacing Assemblies To Remove the Rear Terminals (Option 060) 3-24 Assembly-Level Service Guide...
Page 175 Retrofitting Options...
Page 176 Chapter 4 Retrofitting Options Introduction Introduction This chapter provides the following retrofit procedures: • To Retrofit A3 1.5/3.0/5.0/12.4 GHz Channel Assembly (Option page 4-3 015/030/050/124) • To Retrofit A5 DC Power Input Assembly (Option 002) page 4-4 • To Retrofit A6 High Stability Timebase Assembly (Options 001, page 4-11 010, and 012) •...
Page 177 Chapter 4 Retrofitting Options To Retrofit A3 1.5/3.0/5.0/12.4 GHz Channel Assembly (Option 015/030/050/124) To Retrofit A3 1.5/3.0/5.0/12.4 GHz Channel Assembly (Option 015/030/050/124) Retrofitting to Option 015 (1.5 GHz), Option 030 (3.0 GHz), Option 050 (5.0 GHz), NOTE and Option 124 (12.4 GHz) must be performed by technicians at an Agilent Technologies Service Center.
Page 178 Chapter 4 Retrofitting Options To Retrofit A5 DC Power Input Assembly (Option 002) To Retrofit A5 DC Power Input Assembly (Option 002) Option 002 DC Power Input Assembly Parts Item Agilent Part No. Qty. • Chassis (MP10) 53131-00010 • A5 DC Power Input Assembly 53132-60206 •...
Page 179 Chapter 4 Retrofitting Options To Retrofit A5 DC Power Input Assembly (Option 002) Retrofitting Procedure Slide A1 Motherboard Assembly into the new chassis (MP10) as shown in Figure 4-1A. MP10 A1 Motherboard Assembly Figure 4-1A. DC Power Input Assembly Retrofitting Insert but do not tighten the three TORX 15 screws (H1) that attach A1 Motherboard Assembly to the new chassis (MP10) as shown in Figure 4-1A.
Page 180 Chapter 4 Retrofitting Options To Retrofit A5 DC Power Input Assembly (Option 002) Now, re-install the front bezel by performing the front bezel removal procedure, in Chapter 3 of this guide, in reverse. Be sure to insert A2 Display Board’s cable into connector J6 on A1 Motherboard Assembly.
Page 181 Chapter 4 Retrofitting Options To Retrofit A5 DC Power Input Assembly (Option 002) To install the new A4 AC Power Supply Assembly (53132-60207), connect the ac power supply’s shorter cable to connector J18 on A1 Motherboard Assembly as shown in Figure 4-1B. Insert and tighten the two TORX 10 screws (H2) to attach A4 Power Supply Assembly to the rear of the chassis as shown in Figure 4-1B.
Page 182 Chapter 4 Retrofitting Options To Retrofit A5 DC Power Input Assembly (Option 002) Install A5 DC Power Input Assembly (53132-60206) into the chassis by performing the following: First, connect the other ac power supply cable to the connector on A5 printed-circuit board as shown in Figure 4-1C. DC Power Input Assembly (Option 002) Figure 4-1C.
Page 183 Chapter 4 Retrofitting Options To Retrofit A5 DC Power Input Assembly (Option 002) b. Position A5 Power Input Assembly against the rear of the chassis and align it with the two appropriate holes in the rear of the chassis. Using the four TORX 10 screws (H2), secure A5 DC Power Input Assembly to the side of the chassis (MP10) as shown in Figure 4-1C.
Page 184 Chapter 4 Retrofitting Options To Retrofit A5 DC Power Input Assembly (Option 002) Note that you will have to assemble your own dc power cable using 18 AWG connecting wires and a three-pin Agilent E9640A XLR (female) connector plug, shown in Figure 4-1E. Cable wires connected to this end...
Page 185 TORX 10 screws (H2) 0515-0430 • Pozidriv screws (H7) 2360-0331 These options can be installed or retrofitted in Counters that have firmware revisions 3402 and greater only. Contact your local Agilent Technologies Service Center for more information. Assembly-Level Service Guide 4-11...
Page 186 Chapter 4 Retrofitting Options To Retrofit A6 High Stability Timebase Assembly (Options 001, 010, and 012) Procedure Turn off the Counter and remove power cord. Remove the cover. See the section titled “To Remove the Cover” in Chapter 3 of this guide. If you are retrofitting the Option 010 High Stability or Option 012 Ultra-High Stability assembly, go to step 4 below.
Page 187 Chapter 4 Retrofitting Options To Retrofit A6 High Stability Timebase Assembly (Options 001, 010, and 012) Connect A6 High Stability Timebase Assembly cable to connector J9 on A1 Motherboard Assembly as shown in Figure 4-2. A6 High Stability Timebase Assembly Jumper cap Figure 4-2.
Page 188 INPUTS plugs 1 and 2 (located on rear of chassis) as shown in Figure 4-3A. See the following NOTE. The Agilent 53131A and 53132A front and rear terminals can be in parallel for inputs NOTE 1 and 2. However, the optional Channel 3 input (Option 030) can be configured as rear terminals only or front terminals only.
Page 189 Remove the end of the optional channel (Option 015/030) coaxial cable (W1) that is connected to the front-panel and insert it through the appropriate rear INPUTS opening (3 for Agilent 53131A/132A; 2 for Agilent 53181A) as shown in Figure 4-3B.
Page 190 Chapter 4 Retrofitting Options To Retrofit the Rear Terminals (Option 060) from Option 015/030 To J17 To J16 (Channel 2 for HP53131A/132A Channel 1 for HP 53181A) (Channel 1 for HP53131A/132A) Figure 4-3B. Rear Terminals Retrofitting 4-16 Assembly-Level Service Guide...
Page 191 Solder the lead-end of the cables to their appropriate ground and input pads on A1 Motherboard Assembly (J16, J17) For the Agilent 53131A/132A solder the rear chassis INPUTS 1 cable to J16 and INPUTS 2 to J17. (See Figure 4-3B.) For the Agilent 53181A solder the rear chassis INPUTS 1 cable to J17.
Page 192 Chapter 4 Retrofitting Options To Retrofit the Rear Terminals (Option 060) 4-18 Assembly-Level Service Guide...
Page 193 Replaceable Parts...
Page 194 A6 High Stability Oven Timebase (Option 010) 10811-60160 10811-69160 A6 Ultra-High Stability Oven Timebase (Option 012) 10811-60260 10811-69260 * Exchange part availability subject to change without notice. Contact your local Agilent Technologies Sales Office for current information. Assembly-Level Service Guide...
Page 195 The information given for each part consists of the following: Reference designation. Agilent Technologies part number. Part number check digit (CD). Total quantity (QTY) in instrument. The total quantity is given once and at the first appearance of the part number in the list.
Page 196 How To Order A Part How To Order A Part Agilent Technologies wants to keep your parts ordering process as simple and efficient as possible. To order parts perform the following steps: Identify the part and the quantity you want.
Page 197 Agilent Support Materials Organization, using the telephone numbers or address listed on the next page. (You can also contact your local Agilent Technologies sales office. Agilent Technologies sales offices are listed at the back of this package.) By telephone: –...
Page 198 Chapter 5 Replaceable Parts Cabinet Parts and Hardware Cabinet Parts and Hardware To locate and identify miscellaneous cabinet and chassis parts and instrument hardware, refer to Figure 2-8A, Figure 2-8B, and Figure 5-1. These figures provide different views of the instrument, with the parts identified by reference designations; the reference designations correspond with the ones in Table 5-3.
Page 199 Chapter 5 Replaceable Parts Cabinet Parts and Hardware Table 5-3. Agilent 53131A/132A/181A Replaceable Parts Reference Description Mfr Part Number Agilent Part Designation Number Code EXCHANGE ELECTRONIC ASSEMBLIES A1 (Agilent 53131A) 53131-60004 MOTHERBOARD 28480 53131-60004 53131-69004 MOTHERBOARD (EXCHANGE RESTORED) 28480 53131-69004...
Page 200 Chapter 5 Replaceable Parts Cabinet Parts and Hardware Table 5-3. Agilent 53131A/132A/181A Replaceable Parts (continued) Reference Description Mfr Part Number Agilent Part Designation Number Code 34401-88304 REAR PLASTIC BEZEL 28480 34401-88304 OPTION 001 MEDIUM STABILITY TIMEBASE ASSY OPTION 001 53132-60008...
Page 201 Chapter 5 Replaceable Parts Cabinet Parts and Hardware P/O MP2 (Option 002) (MP11 for Option 002) (Option 001, 010, or 012) (MP10 for Option 002) (HP 53181A only) P/O MP2 Figure 5-1. Agilent 53131A/132A/181A Exploded View (Chassis Parts and Assemblies) Assembly-Level Service Guide...
Page 202 Chapter 5 Replaceable Parts Cabinet Parts and Hardware Table 5-3. Agilent 53131A/132A/181A Replaceable Parts (Continued) Reference Agilent Description Mfr Part Number Designation Part Code Number OPTION 060 REAR TERMINALS OPTION 060 8120-6150 CABLE-COAXIAL ASSY (Only one is needed for the...
Page 203 Backdating Manual Changes...
Page 204 Manual Updating Changes package. Contact the nearest Agilent Technologies Sales and Support Office. Older Instruments To adapt this guide to older Agilent 53131A/132A/181A Counters having a serial prefix lower than 3711, perform the backdating provided in the following sections. Assembly-Level Service Guide...
Page 205 53181A—Change A1 Motherboard part number from 53181-60004 to 53181- 60001. CHANGE 2 (New A3 5/12.4 GHz Prescaler Assembly) Page 2-40/Page 2-42, Table 2-1/Table 2-3. Agilent 53131A/132A/181A Assembly Identification: Change A3 Channel 3 Input Board (Option 050) part number from 53132-60212 to 53132-60211;...
Page 206 Chapter 6 Backdating Backdating Hardware CHANGE 3 (New TCXO boards) Page 2-47. Troubleshooting the Counter Add the following as step 4a: If the Counter under test contains Option 010 or 012 High Stability Timebase, perform the following: Disconnect the power supply’s two-wire cable from J2 of A6 High Stability Timebase Assembly as shown in Figure 2-10.
Page 207 (− 9V) as shown in Figure 2-10. Verify a reading of − 9.0 ± 0.45 V. Page 5-7, Table 5-3. Agilent 53131A/132A/181A Replaceable Parts: Change A6 Options 001, 010, and 012 Timebase Support Board from 53132- 60016 to 53132-60008.
Page 208 Chapter 6 Backdating Backdating Hardware CHANGE 5 (Series 3705A to 3546A, 3548A) Chassis color change only. :Page 5-7/Page 5-10, Table 5-3. Agilent 53131A/132A/181A Replaceable Parts: Reference Designator/ Series 3546A (53131A/132A) Description Series 3705A Series 3548A (53181A) MP2 Bumper/Cover Kit 34401-86010...
Page 209 Counter. Thus, when you order a new A1 Motherboard Assembly (53131-60001, same part number as the old A1) for your Agilent 53131A Counter, you need to order a new metalized front bezel (53131-40003, same part number of the old non- metalized front bezel).
Page 210 3042A]; and shortens TI delay from 1 ms to 100ms. This revision is backward compatible. Page 2-6 thru Page 2-15 (“About the Agilent 53131A/132A Calibration Menu,” and “The Agilent 53131A/132A Calibration Procedures” sections). Replace with the following calibration information and procedures: About the Agilent 53131A Calibration Menu The Utility menu is accessed by holding the Recall key and cycling POWER key.
Page 211 Chapter 6 Backdating About the Agilent 53131A Calibration Menu CHANGE 1 (Firmware Revisions 3317, 3335, 3402, 3427) (Continued) The Agilent 53131A Utility/Calibration Menu Tree Turn power off, press and hold Recall (Utility) key, then press POWER key to access NOTE this menu.
Page 212 Chapter 6 Backdating The Agilent 53131A Calibration Procedures CHANGE 1 (Firmware Revisions 3317, 3335, 3402, 3427) (Continued) The Agilent 53131A Calibration Procedures To Calibrate the Offset for Channels 1 and 2 To access the Utility menu, power down, and press and hold the Recall (Utility) key, then press POWER key.
Page 213 Chapter 6 Backdating The Agilent 53131A Calibration Procedures CHANGE 1 (Firmware Revisions 3317, 3335, 3402, 3427) (Continued) To Calibrate the Gain for Channels 1 and 2 Press any one of the arrow keys until CAL: GAIN 1 ? is displayed.
Page 214 Chapter 6 Backdating The Agilent 53131A Calibration Procedures CHANGE 1 (Firmware Revisions 3317, 3335, 3402, 3427) (Continued) To calibrate the gain for Channel 2, connect the input or the BNC Tee to Channel 2 of the Counter. Press any one of the arrow keys until CAL: GAIN 2 ? is displayed.
Page 215 Chapter 6 Backdating The Agilent 53131A Calibration Procedures CHANGE 1 (Firmware Revisions 3317, 3335, 3402, 3427) (Continued) Equipment Agilent 8130A Pulse Generator (or equivalent) Agilent 10503A BNC Cable HP 8130A Pulse Generator HP53131A Counter Channel 1 Output Figure 2-3. TI Calibration Setup...
Page 216 Chapter 6 Backdating The Agilent 53131A Calibration Procedures Depending on which timebase the Counter contains, proceed to the following procedure “To Calibrate the Standard Timebase” or the “To Calibrate the High Stability Timebase Option (Medium or High)” procedure to calibrate the timebase.
Page 217 Chapter 6 Backdating The Agilent 53131A Calibration Procedures CHANGE 1 (Firmware Revisions 3317, 3335, 3402, 3427) (Continued) To Calibrate the High Stability Timebase Option (Medium or High) NOTE Allow the Counter to warm up for approximately 30 minutes before performing this calibration.
Page 218 Chapter 6 Backdating Backdating Specifications Backdating Specifications CHANGE 1 (53131A, Serial Prefix 3710A and Below) Page 7-3, External Arm Input Specifications: Change the Signal Input Range specification from: TTL Compatible High-Level Input: >3.0 V Low-Level Input: <1.5 V CHANGE 2 (53132A, Serial Prefix 3546A and Below)
Page 219 Chapter 6 Backdating Backdating Specifications CHANGE 3 (53181A, Serial Prefix 3711A02841 and Below) Page 8-3, External Arm Input Specifications: Change the Signal Input Range specification from: TTL Compatible High-Level Input: >3.0 V Low-Level Input: <1.5 V Assembly-Level Service Guide 6-17...
Page 220 Chapter 6 Backdating Backdating Specifications 6-18 Assembly-Level Service Guide...
Page 221 Agilent 53131A/132A Specifications...
Page 222 Chapter 7 Agilent 53131A/132A Specifications Introduction Introduction The specifications of the Agilent 53131A/132A Universal Counter are provided in this chapter. Instrument Inputs Channel 1 & 2 Input Specifications Channel 1 & 2 Input Characteristics 1 MΩ or 50 Ω Frequency Range Impedance: 1 MΩ...
Page 223 Chapter 7 Agilent 53131A/132A Specifications Instrument Inputs (Continued) Instrument Inputs (Continued) 4, 5 Channel 3 Input Specifications Channel 3 Input Characteristics 50 Ω Frequency Range Impedance: Coupling: Option 030 100 MHz to 3 GHz VSWR: < 2.5:1 Option 050 200MHz to 5 GHz Option 124 200 MHz to 12.4 GHz...
Page 224 Threshold: Damage Level: 10 Vrms Impedance: 1 kΩ Input Capacitance: 23 pF Frequency (53131A): 1 MHz, 5 MHz or 10 MHz (automatic selection) Frequency (53132A): 10 MHz Internal vs. External Time Base Selection: Manual: Select Internal or External Automatic: Internal used when External not present...
Page 225 Chapter 7 Agilent 53131A/132A Specifications Measurement Specifications Measurement Specifications Frequency, Period Channel 1 and 2 Range: 0.1 Hz to 225 MHz 4.44 ns to 10 s Channel 3 Range: Option 030 100 MHz to 3 GHz 0.33 ns to 10 ns...
Page 226 Chapter 7 Agilent 53131A/132A Specifications Measurement Specifications (Continued) Measurement Specifications (Continued) Agilent 53131A—Worst Case RMS Resolution Automatic or External Arming: 1E+02 Auto Armed 1E+00 10ms 100ms 1E-2 1E-4 1E-6 Gate Time 1E-8 1E-10 1000 10000 100000 1000000 1E+07 1E+08 1E+09 1E+10...
Page 227 Chapter 7 Agilent 53131A/132A Specifications Measurement Specifications (Continued) Measurement Specifications (Continued) Agilent 53132A—Worst Case RMS Resolution Automatic or External Arming: 1E+02 1E+00 Auto Armed 10ms 1E-2 100ms 1E-4 1E-6 Gate Time 1E-8 1E-10 1000 10000 100000 1000000 1E+07 1E+08 1E+09...
Page 228 Chapter 7 Agilent 53131A/132A Specifications Measurement Specifications (Continued) Measurement Specifications (Continued) Frequency Measurement Example: Given an Agilent 53132A with a High Stability Oven that was calibrated 3 days ago, measure a 15 MHz square wave signal (which has negligible trigger error) with a 1 second gate time. Compute the measurement error to within 2-sigma confidence.
Page 229 ------------------------------------------------------------------------------------------- - 750 ps 300 ps Systematic Uncertainty: ±(Time Base Error × TI) ± Trigger Level Timing Error ± 1.5 ns Differential Channel Error (Agilent 53131A) ± 900 ps Differential Channel Error (Agilent 53132A) Time Interval Delay After a Time Interval Measurement has begun by satisfying the trigger conditions on Channel 1, the instrument will wait for the user-entered delay time to elapse before the end-of-measurement trigger will be accepted on Channel 2.
Page 230: Ns To
750 ps 300 ps Systematic Uncertainty: ± (Time Base Error × Transition Time) ± Trigger Level Timing Error ±1.5 ns Differential Channel Error (Agilent 53131A) ± 900 ps Differential Channel Error (Agilent 53132A) Phase Measurement is specified over the full signal range of Channels 1 and 2.
Page 231 Chapter 7 Agilent 53131A/132A Specifications Measurement Specifications (Continued) Measurement Specifications (Continued) Duty Cycle Measurement is specified over the full signal range of Channel 1. However, both the positive and negative pulse widths must be greater than 4 ns. Results Range: 0 to 1 (e.g.
Page 232 Chapter 7 Agilent 53131A/132A Specifications Measurement Definitions Measurement Definitions Definitions of Systematic Uncertainty Terms • Trigger Error External source and input amplifier noise may advance or delay the trigger points that define the beginning and end of a measurement. The resulting timing uncertainty is a function of the slew rate of the signal and the amplitude of spurious noise spikes (relative to the input hysteresis band).
Page 233 Multiply this quantity by the measurement result to yield the absolute error for that measurement. Averaging measurements will not reduce (fractional) time base error. The Agilent 53131A/132A universal counters exhibit negligible sensitivity to line voltage; consequently this term may be ignored.
Page 234 Chapter 7 Agilent 53131A/132A Specifications Measurement Arming and Processing Measurement Arming and Processing Gate Time Measurement Throughput Auto Mode, or 1 ms to 1000 s GPIB ASCII: 200 Measurements/s (maximum) (See examples in the Programming Guide for ways to optimize...
Page 235 Chapter 7 Agilent 53131A/132A Specifications Measurement Arming and Processing (Continued) Measurement Arming and Processing (Continued) Measurement Statistics Available Statistics: Mean, Minimum, Maximum, Standard Deviation Number of Measurements: 2 to 1,000,000. Statistics may be collected on all measurements or on only those which are between the limit bands.
Page 236 Chapter 7 Agilent 53131A/132A Specifications General Information General Information Save and Recall: Up to 20 complete instrument setups may be saved and recalled later. These setups are retained when power is removed from the universal counter. Rack Dimensions (HxWxD): 88.5 mm x 212.6 mm x 348.3 mm Weight: 3.5 kg maximum...
Page 237 Agilent 53181A Specifications...
Page 238 Chapter 8 Agilent 53181A Specifications Introduction Introduction The specifications of the Agilent 53181A Frequency Counter are provided in this chapter. Instrument Inputs Channel 1 Input Specifications Channel 1 Input Characteristics 1 MΩ or 50 Ω Frequency Range Impedance: 1 MΩ Capacitance: 30 pF DC Coupled: DC to 225 MHz...
Page 239 Chapter 8 Agilent 53181A Specifications Instrument Inputs (Continued) Instrument Inputs (Continued) 3, 4 Channel 2 Input Specifications Channel 2 Input Characteristics 50 Ω Frequency Range Impedance: Coupling: Opt. 015 100 Mhz to 1.5 Ghz VSWR: < 2.5:1 Opt. 030 100 MHz to 3 GHz Opt.
Page 240 Chapter 8 Agilent 53181A Specifications Time Base Time Base Internal Time Base Stability Standard Medium Stability High Stability Oven Ultra High Stability (0° to 50° C) Oven (Option 001) (Option 010) Oven (Option 012) –6 –7 –9 –9 Temperature Stability: <...
Page 241 Chapter 8 Agilent 53181A Specifications Measurement Specifications Measurement Specifications Frequency, Period Channel 1 Range: 0.1 Hz to 225 MHz 4.44 ns to 10 s Channel 2 Range: Option 015 100 Mhz to 1.5 Ghz 0.67 ns to 10 ns Option 030 100 MHz to 3 GHz 0.33 ns to 10 ns Option 050...
Page 242 Chapter 8 Agilent 53181A Specifications Measurement Specifications (Continued) Measurement Specifications (Continued) Worst Case RMS Resolution Automatic or External Arming: 1E+02 Auto Armed 1E+00 10ms 1E-2 100ms 1E-4 1E-6 Gate Time 1E-8 1E-10 1000 10000 100000 1000000 1E+07 1E+08 1E+09 1E+10 Input Frequency (Hz) Time or Digit Arming: 1E+02...
Page 243 Chapter 8 Agilent 53181A Specifications Measurement Specifications (Continued) Measurement Specifications (Continued) Frequency Measurement Example: Given an Agilent 53181A with a High Stability Oven that was calibrated 3 days ago, measure a 15 MHz square wave signal (which has negligible trigger error) with a 1 second gate time. Compute the measurement error to within 2-sigma confidence. ±...
Page 244 Chapter 8 Agilent 53181A Specifications Measurement Specifications (Continued) Measurement Specifications (Continued) ⁄ ⁄ Frequency Ratio: Measurement is specified over the full signal range of each input. –10 Results Range: to 10 ‘Auto’ Gate Time: 100 ms (or sufficient cycles on Channel 1 to make a valid measurement, whichever is longer) LSD: Rat io 1 2 ----------------------------------------------------------- -...
Page 245 Chapter 8 Agilent 53181A Specifications Measurement Definitions Measurement Definitions Definitions of Systematic Uncertainty Terms • Trigger Error External source and input amplifier noise may advance or delay the trigger points that define the beginning and end of a measurement. The resulting timing uncertainty is a function of the slew rate of the signal and the amplitude of spurious noise spikes (relative to the input hysteresis band).
Page 246 Chapter 8 Agilent 53181A Specifications Measurement Arming and Processing Measurement Arming and Processing Gate Time Measurement Throughput Auto Mode, or 1 ms to 1000 s GPIB ASCII: 200 Measurements/s (maximum) (See examples in the Programming Guide for ways to optimize measurement throughput) Measurement Arming Start Measurement:...
Page 247 Chapter 8 Agilent 53181A Specifications General Information General Information Save and Recall: Up to 20 complete instrument setups may be saved and recalled later. These setups are retained when power is removed from the counter. Rack Dimensions (HxWxD): 88.5 mm x 212.6 mm x 348.3 mm Weight: 3.5 kg maximum AC Line Supply...
Page 248 Chapter 8 Agilent 53181A Specifications General Information 8-12 Assembly-Level Service Guide...
Page 249 3-15 unsecure 2-28 A5 DC Power Input (Option 002) 3-17 calibration cycle A6 High Stability Timebase (Options 001, Calibration Menu 010, 012) 3-19 Agilent 53131A/132A accessories Agilent 53181A 2-25 available Calibration menu 2-25 supplied Agilent 53131A/132A accessories available Calibration Menu tree...
Page 250 A3 3 GHz Channel 3 (Option 030) Rear Terminals (Option 060) 3-21 A3 5 GHz Channel 3 (Option 050) window 3-11 DC Power Input (Option 002) disk High Stability Timebase (Option Agilent 53131A/132A 1-40 001) 4-11 Agilent 53181A 1-70 High Stability Timebase (Option disks program 010)
Page 251 A3 1.5 GHz Channel 2 (Option 015) performance test record A3 3 GHz Channel 3 (Option 030) Agilent 53131A/132A 1-41 A3 5 GHz Channel 3 (Option 050) Agilent 53181A 1-71 DC Power Input (Option 002)
Page 252 Visual inspection 2-39 serial number Serial number prefix window 3-11 serial prefix Service manual organization XLR plug 4-10 specifications Agilent 53131A/132A Agilent 53181A dimensions 7-16 frequency range measurement throughput 7-14 power supply voltage 7-16 8-11 RS-232C connector pin assignments 7-16...

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