Agilent Technologies 8711C Service Manual

Agilent Technologies 8711C Service Manual

Rf network analyzers and tuner analyzer
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Summary of Contents for Agilent Technologies 8711C

  • Page 1 T h e t e s t & me a s u r e me n t e q u i p me n t y o u n e e d a t t h e p r i c e y o u w a n t . A l l t e s t I n s t r u me n t s , I n c .
  • Page 2 Service Guide Agilent Technologies 8711C/12/13C/14C RF Network Analyzers 8730A Tuner Analyzer Manufacturing Part Number: 08712-90059 Printed in USA Print Date: February 1998 Supersedes October 1996 © Agilent Technologies, Inc. 1996, 1998...
  • Page 3 This manual may contain references to HP or Hewlett-Packard. Please note that Hewlett-Packard's former test and measurement, semiconductor products and chemical analysis businesses are now part of Agilent Technologies. To reduce potential confusion, the only change to product numbers and names has been in the company name prefix: where a product number/name was HP XXXX the current name/number is now Agilent XXXX.
  • Page 4 Printing Copies of Documentation from the Web To print copies of documentation from the Web, download the PDF file from the Agilent web site: • Go to http://www.agilent.com. • Enter the document’s part number (located on the title page) in the Quick Search box. •...
  • Page 5 Contacting Agilent This information supersedes all prior HP contact information. Online assistance: www.agilent.com/find/assist Americas Brazil Canada Mexico United States (tel) 1 800 254 2440 (tel) +1 877 894 4414 (tel) (+55) 11 3351 7012 (tel) 800 829 4444 (fax) 1 800 254 4222 (alt) +1 303 662 3369 (fax) (+55) 11 3351 7024 (alt) (+1) 303 662 3998...
  • Page 6 Guide P 8711C/12C/13C/14C RF Network Analyzers P 8730A Tuner Analyzer BCDE P Part No. 08712-90059 Printed in USA February 1998 Supersedes October 1996...
  • Page 7 Notice. he information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and tness for a particular purpose.
  • Page 8 rmware, and is displayed on the right side of the instrument's screen next to the eight unlabeled keys. his indicates text displayed on the instrument's screen. creen Text This guide contains servicing information for the following instruments: HP 8711C HP 8712C HP 8713C HP 8714C HP 8730A...
  • Page 10: Table Of Contents

    ontents 1. Performance Tests System Speci cations Summary ......Measurement Port Speci cations ..... . Source Speci cations .
  • Page 11 Gain Compression ......1-21 Noise Floor ....... 1-22 Dynamic Accuracy .
  • Page 12 Warmup ime ......2-22 Estimated Adjustment ime ..... . . 2-22 Procedure .
  • Page 13 How to Remove the Power Supply Assembly ....3-12 A7 Display Assembly Replacement ..... . 3-13 How to Remove the Display Assembly .
  • Page 14 Receiver heory ......Di erences Between the HP 8711C/12C/30A and HP 8713C/14C (1300 MHz vs 3000 MHz) .
  • Page 15 7. Parts List Analyzer Hardware ......Speci c Assembly and Cable Locations ....8.
  • Page 16 4-8. Construction of a Cross-over Cable ..... 4-32 4-9. HP 8711C/12C/30A Overall Block Diagram ....4-35 4-10.
  • Page 17 5-14 7-1. HP 8711C/12C/30A Major Assembly and Cable Locations ... 7-2. HP 8713C/14C Major Assembly and Cable Locations ... . .
  • Page 18: Performance Tests

    Performance Tests his chapter is divided into three parts: the system speci cations summary, performing the operator's check, and instructions for using the analyzer performance test software. he operator's check can be used as a quick 80% con dence test. he only equipment required for this check is a type-N cable and a good quality 50 type-N load (75 for the HP 8730A or Option 1EC analyzers).
  • Page 19: System Speci Cations Summary

    25 C 5 C, with less than 1 C deviation from the calibration temperature. Directivity and Source Match Directivity HP 8711C/12C/13C/14C/30A 40 dB Source match HP 8711C/12C/13C/14C/30A 30 dB Load Match...
  • Page 20: Receiver Speci Cations

    Subtract from the above maximum levels the sum of: 3 dB for 75 (Option 1EC), 1 dB for internal attenuator (Option 1E1), 2 dB for M delay (HP 8711C/12C Option 1D /1DB), and 4 dB for M delay (HP 8713C/14C Option 1D /1DB).
  • Page 21 Typical Frequency Response (broadband) P 8711C/12C/30A P 8713C/14C 0.5 dB 1.0 dB Total Power Accuracy (broadband) Total Power Accuracy = Absolute Power Accuracy + Frequency Response Dynamic Range (Narrowband) Frequency P 8711C/12C P 8711C/12C/30A P 8713C/14C P 8713C/14C (50 ) (75 )
  • Page 22: System Speci Cations

    Dynamic ccuracy (narrowband) Insert artwork here. System Speci cations Trace Noise (Transmission, 0 dBm, excludes frequency response) Parameter P 8711C/12C/30A P 8713C/14C medium IF bandwidth 0.2 dB 0.2 dB narrow IF bandwidth 0.1 dB 0.05 dB 3700 Hz 250 Hz Performance T ests...
  • Page 23: Performing The Operator's Check

    HP 8730A tuner analyzer to the preset state of a standard network analyzer: ervice SYSTEM OPTIONS ervice Utilities Next Menu Next Menu Inst tate Utilities Preset to 8711C Performance T ests...
  • Page 24: Make A Ransmission Measurement

    3. Verify that the data trace falls within 0.5 dB of 0 dB. See Figure 1-2 for a typical HP 8713C/14C result. he HP 8711C/12C/30A should look similar, but end at 1300 MHz. Figure OP RANS here. Figure 1-2. Typical P 8713C/14C Transmission Measurement...
  • Page 25: Make A Broadband Power Measurement

    Make a Broadband Power Measurement 1. Leave the cable connected to the analyzer. 2. Press More Power tart MEAS1 SCALE ENTER 3. Verify that the data trace is within 2 dB of 0 dBm. See Figure 1-3 for a typical HP 8713C/14C trace.
  • Page 26: Make A Re Ection Measurement

    Make a e ection Measurement 1. Leave the cable connected to the analyzer. 2. Press (see the cautions on page 1-6) Reflection PRESET MEAS1 3. Verify that the data trace falls completely below 16 dB. See Figure 1-4 for a typical HP 8713C/14C trace.
  • Page 27: If The Analyzer Fails The Operator's Check

    Measure a known lter to verify that its measured response is the same as is expected. (A 175 MHz lter is supplied with the HP 8711C/12C/13C/14C.) Verify both the frequency accuracy and noise oor. Check broadband response with lter using conversion-loss mode (same as B*/R*).
  • Page 28: Instructions For Using The Analyzer Performance Est Software

    HP part number 08712-10017 (LIF) and 08712-10018 (DOS), is designed to automate all the performance veri cation tests for the HP 8711C/12C/13C/14C, and HP 8730A as well as the required automated fractional-N spur adjustments. It will test all option combinations, including both 50 and 75 versions (only the 75 versions apply to the HP 8730A).
  • Page 29: Equipment

    Note When testing an HP 8730A, the HP 87030A tuner test set should be disconnected. Ignore any error messages indicating that the analyzer cannot communicate with the test set. quipment Besides a computer, printer, RF cables, BNC cables, HP-IB cables, and adapters, able 1-1 lists the equipment that is required to test and adjust the analyzer.
  • Page 30 Table 1-1. Required Equipment for the Adjustments and Performance Tests escription HP Model # 50 ST Notes A J PERF A J PERF Function generator HP 8116 No substitute. Power meter HP 437B, HP 438 use an HP 436 . Power sensor, 50 HP 8482 Power sensor, 75...
  • Page 31: File Structure

    le that holds the analyzer's test results (in this case an HP 8711C). he variable represents the last four digits in the analyzer's serial xxxx number. he le \d12Cxxxx" holds data for an HP 8712C, \d13Cxxxx" for an HP 8713C, etc.
  • Page 32: Con Guration File

    Note Several data les are present on the disk with the \xxxx" sux. hese are default les that allow operation of the program with NO correction factors. he values in these le are nominal values. For example: 100 percent for all sensor cal factors;...
  • Page 33: Performance Est Software Installation

    Performance Test Software Installation 1. o install this program to the hard drive: either copy all les (except \INS ALL") to the hard drive, or load and run the \INS ALL" program. he INS ALL program will automatically copy all required les to your speci ed destination drive or directory (HFS, SRM or LIF format).
  • Page 34: He Attenuator Switch Driver Model Number (Hp 11713A) And Address

    The attenuator switch driver model number ( P 11713A) and address (28). Next is the attenuator switch driver selection and address. At this time, the only two choices are the HP 11713A and `NONE'. If `NONE' is selected, the program will prompt you to manually set the external 10 dB step attenuator each time it needs to be changed.
  • Page 35: Sensors

    The beeper (on). he last selection will suppress or enable the beeper, as desired. The current DUT le sux (1). his le, \CurrDU x," contains the test-result data of the current device under test. Up to ten di erent le names can be speci ed. his allows multiple users to operate from one system storage medium, such as an SRM environment.
  • Page 36: Using The Program

    Valid entries are within 3 dB of the nominal attenuation setting. he program will request data up to 110 dB of attenuation. Using the Program Note Remember that the key can be used as softkey #1. RETURN ENTER EXECUTE When the program is rst run, the initial information screen is presented. his contains the program name, revision number, date and other miscellaneous information.
  • Page 37: Est Selection Menu

    Once the program nds the analyzer, the serial number is interrogated and the disk is searched for any previous test results. If none are found, a message is displayed and you are then allowed to enter any pertinent data regarding this new DU such as owner, technician, repair order, comments etc.
  • Page 38: Miscellaneous Information

    rst connected to the ports and the power level set to 3 dBm for the HP 8713C/14C or +13 dBm (or max power) for the HP 8711C/12C/30A. he 3 dB attenuator is used to improve any mismatch errors. he resulting power is read by the analyzer. he calibrated 20 dB xed attenuator is then inserted into the path and the resulting power is measured again.
  • Page 39: Noise Floor

    Gain compression for the HP 8713C/14C is tested in the 0 dBm 20 dBm power range. Likewise, gain compression for the HP 8711C/12C/30A is tested in the +10 to 10 dBm power range.
  • Page 40: Power Flatness

    Power Flatness Power atness is de ned as the maximum variation in power at the RF output connector across the frequency range of the analyzer. If the speci cation is 1 dB then a maximum variation of 2 dB is allowed. In this test a calibrated power sensor is connected directly to the RF output. he analyzer is stepped through twenty-seven CW frequencies at one power level and each is measured and corrected based on the power sensor cal factor.
  • Page 41: Broadband Frequency Response

    Broadband Frequency Response his test checks the broadband frequency response of the B* input at a nominal 6 dBm input to the analyzer. he RF output of the analyzer is sent to the input of a power splitter. One output of the splitter is sent to the RF input of the analyzer while a power sensor is connected to the other output.
  • Page 42: Spurs (Including Harmonics)

    4 dB for HP 8713C/14C Option 1DA/1DB (AM delay) In-band harmonics are tested at several frequencies. he second harmonic of 700 MHz need not be tested on an HP 8711C/12C/30A because its upper frequency is 1300 MHz. Out-of-band harmonics are not tested.
  • Page 43: Am Delay Modulator (Option 1Da/1Db Analyzers Only)

    AM Delay Modulator (Option 1DA/1DB analyzers only) AM delay itself is not tested in the analyzer since it is a function of the external detector used. However the AM delay modulator is tested for functionality. When the modulator is on, any CW signal is AM modulated with a 27.78 kHz sinewave.
  • Page 44: Adjustments

    Adjustments his chapter contains procedures to adjust the analyzer. Before performing adjustments, turn on the analyzer and allow it to warm up for one hour. You need an external controller for running three of the adjustments. he remaining adjustments are accessed through the analyzer's service menus. Refer to \Post-Repair Procedures"...
  • Page 45 HP 8730A tuner analyzer to the preset state of a standard network analyzer. ervice SYSTEM OPTIONS ervice Utilities Next Menu Next Menu Inst tate Utilities Preset to 8711C o return your tuner analyzer to its original preset state, press PRESET Adjustments...
  • Page 46 orrection onstants ( s) Adjustments When you switch ON the analyzer's line power, the analyzer copies the current correction constants from the CPU EPROM into a RAM bu er. When you run the adjustment tests, the analyzer generates correction constants and saves them to the RAM bu er only (they are erased if the analyzer's line power is switched OFF).
  • Page 47: Required Equipment

    Fractional-N V O Adjustment Note he fractional-N VCO adjustment is not normally required. If this board has been replaced, the replacement board will have been adjusted at the factory. his adjustment should only be performed if you have reason to believe that the fractional-N VCO assembly is not functioning properly.
  • Page 48 Reconnect the SMB cables. If necessary, use the longer SMB cables provided in the service kit. 3. Switch ON the analyzer's line power. If your analyzer is an HP 8711C/12C: set the analyzer's source frequency to 1.3 GHz by pressing PRESET If your analyzer is an HP 8730A: set the analyzer's source frequency to 1.3 GHz by pressing...
  • Page 49 Insert artwork here. Figure 2-2. TP11 and L162 for Fractional-N VCO Adjustment 5. Use a nonconductive adjustment tool, such as a small ceramic or plastic atblade screwdriver, to adjust L162 (see Figure 2-2) until P11 reads 1.17 0.03 volts with respect to board ground.
  • Page 50: Fractional-N Spur Adjustment

    Fractional-N Spur Adjustment Note he fractional-N spur adjustment is not normally required. If this board has been replaced, the replacement board will have been adjusted at the factory. his adjustment should only be performed if you have reason to believe that the fractional-N VCO assembly is generating spurious responses.
  • Page 51 2. Switch OFF the analyzer's line power. Remove the front panel by following these steps and referring to Figure 2-3: a. Remove the trim strip from the handles. b. Remove the four #15 ORX screws attaching each handle to the analyzer. c.
  • Page 52 4. Connect the equipment as shown in Figure 2-4. Insert artwork here. Figure 2-4. Setup for Fractional-N Spur Adjustments 5. Load and run the test software by following the procedure in \Loading and Running the est Software" in the \Performance ests" chapter of this guide. 6.
  • Page 53 8. After the API adjustment, the program prompts you to adjust for the 100 kHz spur at a single frequency. he controller displays a message, telling you when the adjustment has completed. 9. Insert the fractional-N board assembly back into the analyzer (do reassemble the analyzer completely yet).
  • Page 54: Required Equipment

    Frequency Accuracy Adjustment In this procedure the frequency accuracy of the analyzer's source is set by adjusting the 10 MHz internal reference clock. equired Equipment Equipment Recommended Model or Part Number escription Frequency counter HP 5342 HP 5342 BNC cable 8120-1839 8120-1839 Minimum loss pad...
  • Page 55 500 MHz 2500 Hz, you do not need to make this adjustment. However, you can still make this adjustment to improve the frequency accuracy. 2-12 Adjustments...
  • Page 56 4. o proceed with the adjustment, disconnect the frequency counter and adapter(s) from the RF OU PU connector. 5. Remove the handles and front panel by following these steps and referring to Figure 2-7. a. Remove the trim strip from the handles. b.
  • Page 57: Estimated Adjustment Ime

    Set Serial Number, Adjustment #100 his procedure shows you how to store the analyzer's serial number in the CPU bootROM. While this is not normally required, you may have to perform this procedure under certain circumstances when you replace the CPU board. You can only perform this procedure over HP-IB, so an HP BASIC controller (either external or IBASIC) is required.
  • Page 58: In Case Of DiCulty

    In Case of Diculty If the analyzer displays an error message that tells you the serial number has the wrong format, check the rear-panel serial number tag again and verify that you have the correct serial number. If the analyzer displays an error message that tells you \Serial number already set," that means a serial number is already installed on that CPU board and therefore cannot be changed.
  • Page 59: Lo Power Correction, Adjustment #101

    LO Power orrection, Adjustment #101 Note his adjustment is only required for the HP 8711C/12C/30A. It is required for the HP 8713C/14C. his procedure adjusts the DAC that controls the LO power level for optimal mixer performance. equired Equipment Equipment...
  • Page 60: Switched Gain Correction, Adjustment #102

    Switched Gain orrection, Adjustment #102 In this procedure, the analyzer sets the gain for each analyzer input. he analyzer can apply di erent gains to the R, A, and B input signals to make sure that the signal is in the correct range for proper ADC (analog to digital converter) operation.
  • Page 61 3. If you are going to make any more adjustments, press ervice SYSTEM OPTIONS Update Corr Const tore CC to EPROM If you going to make more adjustments, save the correction constant data that you have generated so far. a. Insert a formatted disk into the internal disk drive. b.
  • Page 62: External Detector Correction, Adjustment #103

    External Detector orrection, Adjustment #103 his procedure shows you how to generate correction constants for the receiver to make external detector or internal broadband measurements. Perform this test whether or not you plan to use external detectors. In this test, an accurate 0.5 V is provided to both the X and Y detector inputs.
  • Page 63: Warmup Ime

    Warmup Time Allow the analyzer to warm up for one hour. stimated Adjustment Time his adjustment takes approximately two minutes to perform. Procedure 1. Press ervice Test and Adjustments elect Adjustment PRESET SYSTEM OPTIONS Execute Test ENTER 2. his is a fully automated adjustment handled by the internal rmware. Follow the instructions on the analyzer's display.
  • Page 64: Auxiliary Input Correction, Adjustment #111

    Auxiliary Input orrection, Adjustment #111 his procedure shows you how to generate correction constants for the auxiliary input. he procedure measures two voltages (0 and +10.000 volts) applied to the auxiliary input to compute the o set and gain of the auxiliary input circuitry. equired Equipment Equipment Recommended Model or Part Number...
  • Page 65: Required Equipment

    Source Power (AL ) orrection, Adjustment #104 In this procedure, the analyzer creates a table of values that corrects the source output power over di erent frequencies and power levels. he analyzer reads values from a power meter to determine the actual source output level. An HP 437B or HP 438A power meter is required for this test.
  • Page 66: In Case Of DiCulty

    Insert artwork here. Figure 2-9. Setup for Source Power Correction Note Before you begin this adjustment, you should store a copy of the correction constants in a disk le for later retrieval, if you have not done so already. 1. Switch ON the power meter and let it warm up for at least ve minutes. 2.
  • Page 67 Note If you must cycle the analyzer's line power, and you did not store the correction constants to disk before starting this adjustment, you need to repeat all of the adjustments done up to this point, then repeat the source power correction.
  • Page 68: B Amplitude Correction, Adjustment #105

    B Amplitude orrection, Adjustment #105 his procedure corrects the B narrowband input so that it displays a at 0 dB trace with an input of 0 dBm from the analyzer's internal source. equired Equipment Equipment Recommended Model or Part Number escription Type-N cable 8120-4781...
  • Page 69: Required Equipment

    Transmission (B/R) orrection, Adjustment #106 his procedure performs a transmission response calibration to correct for frequency response in narrowband B/R measurements. It is recommended that you use a short-length, high quality cable to perform this adjustment. equired Equipment Equipment Recommended Model or Part Number escription Type-N cable 8120-4781...
  • Page 70: B* Amplitude Correction, Adjustment #110

    B* Amplitude orrection, Adjustment #110 In this procedure, the analyzer corrects for amplitude variations in the B* circuitry. equired Equipment Equipment Recommended Model or Part Number escription Type-N cable 8120-4781 8120-2408 8120-6469 8120-6468 20 dB attenuator HP 8491 Opt. 020 0955-0768 This cable is preferred because it has better match and lower loss, which results in a better default calibration.
  • Page 71: Am Delay Correction, Adjustment #112

    AM Delay orrection, Adjustment #112 his procedure compensates for any loss in the analyzer's AM delay circuitry. Note his adjustment is only required for analyzers with Option 1DA or Option 1DB. equired Equipment Equipment Recommended Model or Part Number escription Type-N cable 8120-4781 8120-2408...
  • Page 72: Re Ection (One-Port) Correction, Adjustment #107

    Re ection (One-Port) orrection, Adjustment #107 his procedure corrects for errors in re ection measurements. he analyzer measures an open, a short, and a load to perform a one-port re ection calibration. equired Equipment Equipment Recommended Model or Part Number escription Calibration kit HP 85032B/E HP 85036B/E Warmup Time...
  • Page 73: R* Amplitude Correction, Adjustment #108

    R* Amplitude orrection, Adjustment #108 his procedure generates correction constants to improve absolute power accuracy in R* measurements. (Frequency e ects are corrected in \R* Frequency Response Correction, Adjustment #109.") equired Equipment Equipment Recommended Model or Part Number escription Type-N (m) termination 00909-60009 00909-60019 (p/o HP 85032B/E or HP 85036B/E)
  • Page 74: R* Frequency Response Correction, Adjustment #109

    R* Frequency Response orrection, Adjustment #109 his procedure corrects for frequency response errors in R* measurements. Caution You must perform adjustment #108 (R* amplitude correction) before running the R* frequency response correction adjustment. equired Equipment Equipment Recommended Model or Part Number escription Type-N (m) termination 00909-60009...
  • Page 76: Assembly Replacement

    Assembly Replacement Introduction his chapter describes how to disassemble and reassemble your analyzer for the purpose of replacing a failed assembly. It also contains speci c instructions for replacing each assembly. Note Some individual components of each assembly may also be replaced. See Chapter 7, \Parts List,"...
  • Page 77: Major Assembly Removal/Replacement

    Major Assembly Removal/Replacement he following sections describe how to remove your analyzer's major assemblies. hese include the: A1 front panel assembly A2 CPU assembly A3 fractional-N/reference assembly A4 source assembly A5 receiver assembly A6 power supply assembly A7 CR assembly A8 oppy disk drive assembly (attached to the A2 CPU assembly) Option 1E1 attenuator assembly Option 1DA/1DB AM delay assembly...
  • Page 78: A1 Front Panel Assembly Replacement

    A1 Front Panel Assembly Replacement Insert artwork here. Figure 3-1. Removing the andles and Front Panel Assembly he A1 assembly comes in two di erent versions: 50 and 75 . ( he HP 8730A only uses the 75 version.) However, the di erence is only cosmetic. Both assemblies include all front panel components including frame, keyboard, keypad, and knob.
  • Page 79: How To Remove The Front Panel Assembly

    How to emove the Front Panel Assembly 1. Disconnect the power cord. 2. Remove the front handles (trim strip rst). See Figure 3-1. 3. Pull the center top of the front panel up slightly and pull the center bottom down slightly to release the two centered catches.
  • Page 80: A2 Cpu Board Assembly Replacement

    A2 PU Board Assembly Replacement Insert artwork here. Figure 3-2. Removing the CPU Assembly Caution Failure to follow instructions may result in an improperly operating analyzer. Make a copy of the correction constants (see Chapter 8) before replacing the A2 CPU assembly. Also, it is recommended that your analyzer's rmware disk be available before replacing the A2 CPU assembly.
  • Page 81: How To Remove The Cpu Board Assembly

    How to emove the CPU Board Assembly Perform all of the required steps listed below, if applicable: 1. Disconnect the power cord. 2. Disconnect all cables from the top row of connectors on the rear panel. Next, refer to Figure 3-2 and remove the anchoring screw just above the HP-IB connector. 3.
  • Page 82 8. ransfer the A8 3.5" internal disk drive assembly: Remove the disk drive from the old board and install it on the replacement assembly. 9. ransfer all cable assemblies: Remove all cable assemblies from the old board and properly attach them to the replacement board.
  • Page 83: A3 Fractional-N/Reference Assembly Replacement

    8 in able 7-5 of the \Parts List" chapter) are fully seated. If they are not seated, the board may not t or it may generate spurs. Figure 3-4 depicts an HP 8713C/14C. hough the HP 8711C/12C/30A analyzer's cable assemblies are slightly di erent, the assembly/disassembly procedures are the same.
  • Page 84: A4 Source Assembly Replacement

    A4 Source Assembly Replacement he source board comes in two di erent versions. One is for HP 8711C/12C/30A analyzers, and the other is for HP 8713C/4C analyzers. Make sure the proper board is ordered. How to emove the Source Assembly 1. Disconnect the power cord.
  • Page 85: A5 Receiver Assembly Replacement

    A5 receiver assemblies available for replacement. here are both 50 and 75 versions for the HP 8711C/12C or the HP 8713C/14C analyzers. ( he HP 8730A only uses the 75 version that is compatible with the HP 8711C/12C.) Make sure the correct version is ordered.
  • Page 86 1. Disconnect the power cord. 2. Disconnect any cables from the EX DE X-input, EX DE Y-input, and AUX INPU rear panel BNC connectors. 3. Remove nuts and washers from AUX INPU BNC connector. 4. Remove the three anchoring screws on the bottom of the analyzer. See Figure 3-6. 5.
  • Page 87: A6 Power Supply Assembly Replacement

    A6 Power Supply Assembly Replacement he power supply is a single assembly. he only lower level part available for replacement is the cooling fan. How to emove the Power Supply Assembly 1. Disconnect the power cord. 2. Remove the front panel assembly (see \How to Remove the Front Panel Assembly"). Remove the handle nut plate on the left side only.
  • Page 88: A7 Display Assembly Replacement

    A7 Display Assembly Replacement he display consists of the CR assembly and a matched circuit board. Both assemblies must be replaced at the same time. How to emove the Display Assembly 1. Disconnect the power cord. 2. Remove SCREW 7 (two places) as indicated on the rear-panel label. 3.
  • Page 89: A8 3.5" Internal Disk Drive Assembly Replacement

    A8 3.5" Internal Disk Drive Assembly Replacement he disk drive is a non-repairable unit and must be replaced if it fails. However, before replacing the drive, try cleaning the drive with a suitable cleaning device, or by spraying it with clean compressed air. Most \failed" drives are only in need of a cleaning. If the drive must be replaced, you may need to recon gure the jumpers.
  • Page 90: Post Repair Procedures

    Post Repair Procedures able 3-1 describes the adjustments and performance tests that are required after replacing one or more of the analyzer's assemblies. Table 3-1. Post Repair Procedures eplaced Assembly equired Adjustments Suggested Veri cation Tests 1 Front Panel None Functional Test Only 2 CPU Re-load correction constant le from disk Functional tests only...
  • Page 91: How To Order Parts

    How to Order Parts Refer to Chapter 7, \Parts List." Identify the part and its part number. o order the part: 1. Use the part number listed. 2. State the quantity desired. 3. Address the order to the nearest Hewlett-Packard sales or service oce. See able 9-1 in the \Safety, Warranty, and Assistance"...
  • Page 92: Troubleshooting And Block Diagrams Introduction

    Troubleshooting and Block Diagrams Introduction his chapter is divided into four main, symptom-related sections. Refer to the section that best describes the problem you are observing, based on the results of your initial observation. Category 1 Failures: Dead or no response No display Unreadable display Error message/code displayed...
  • Page 93 SYSTEM OPTIONS ervice Utilities Next Menu Next Menu Inst tate Utilities Preset to 8711C o return your tuner analyzer to its original preset state, press PRESET Caution If you need to disassemble the instrument, be sure to work at an antistatic workstation and use a grounded wrist strap to prevent damage from electrostatic discharge (ESD).
  • Page 94: Service Kit

    For disassembly procedures, see \Assembly Replacement." Warning Some parts in the analyzer have sharp edges. Work carefully to avoid injury. Before replacing an assembly, inspect the board for obvious, easy-to- x defects. Examples include: bent pins on ICs no solder in holes around the edges of shields cold solder joints Service Kit he service kit (HP part number 08712-60012) for the HP analyzers contains several parts that...
  • Page 95: How To Use The Extender Board

    How to Use the xtender Board he A2, A3, A4, and A5 board assemblies can all be operated outside of the chassis with the extender board. his can be very helpful if you are troubleshooting a problematic board assembly. he supplied display ribbon cable is needed to connect the display if the A2 CPU assembly is connected to the extender board.
  • Page 96: Initial Observations - Normal Power-Up Sequence

    Insert artwork here. Figure 4-2. Connecting the Extender Board Initial Observations - Normal Power-up Sequence Prepare the analyzer for observation by performing these steps: 1. Disconnect all accessories and peripherals. 2. Remove the disk (if any) from the internal disk drive. 3.
  • Page 97: Operator's Check

    6. Information on the model number, rmware revision, and installed options will be displayed. he graticule may also be displayed, depending on the analyzer's power-down state. Press (see the cautions on pages 4-1 and 4-2). he display should show a transmission PRESET trace (a at line at 0 dB).
  • Page 98: Category 1 Failures - Dead Or No Response, No Display, Unreadable Display, Or Error Messages On The Display

    ategory 1 Failures - Dead or No Response, No Display, Unreadable Display, or Error Messages on the Display his category of failure usually involves one of the following: A defective A6 power supply A defective A2 CPU Poor contact with the rear plane connector board A digital failure in any board assembly A defective display Troubleshooting A6 Power Supply Assembly Problems...
  • Page 99: Measure The Power Supply Voltages

    If the red LED is still blinking: Replace the power supply. If the red LED is now o : Go to the following section \Remove Assemblies" (the supply is being loaded down by another assembly). Measure the Power Supply Voltages Remove the backplane cover from the rear panel. Figure 4-3 shows the pinout for J1. here are four main supplies, each with its own return, plus the standby voltage which powers the nonvolatile SRAM on the CPU board.
  • Page 100: Remove Assemblies

    Remove Assemblies If your problem has not been solved at this point in the troubleshooting process it is highly probable that one of the assemblies is causing the power supply to shut down. his may be caused by the other boards having bad contact with the backplane. Give each board a push to make sure it is rmly seated.
  • Page 101: Est Status Leds

    If the disk drive light does not illuminate: Make sure the power (3-wire) cable and ribbon cable are connected from the disk drive to the CPU board. Check the cables. he problem can be either a bad disk drive or bad drive circuitry on the CPU.
  • Page 102 Check the est Status LEDs, then locate that test number in the table to determine what to do. For test numbers above 19, the name of the test is usually in the failure message, so look for the test name in able 4-1. Refer to the \Service Related Menus" section of this guide for detailed descriptions of each test.
  • Page 103 Table 4-1. Analyzer Self-Tests (continued) Test Test Name Applicable Error Messages and Notes DR M Errors: Memory size too small. Bus error. > > > t address num , write num read num > R M bit errors: num > R M refresh errors: num Test writes/reads test patterns.
  • Page 104 Table 4-1. Analyzer Self-Tests (continued) Test Test Name Applicable Error Messages and Notes Non-volatile SR M Errors: SR M battery test F ILED - Saved states lost. SR M battery test ERROR - Cannot access SR M. Tests integrity of battery-backed SR M, detects loss of power to SR M. Writes/reads pattern to part of SR M.
  • Page 105: Error Occurs During Dsp Initialization Or Calculating CoeCients

    Table 4-1. Analyzer Self-Tests (continued) Test Test Name Applicable Error Messages and Notes DIN Keyboard Errors: Interface DIN Keyboard test F ILED Problem with DIN Keyboard Power Supply! Check Fuse. Tests DIN keyboard control portion of the Super I/O. Replace CPU board or check Super I/O chip, U607, or its clock, U606. Centronics Interface Errors: Centronics port test F ILED.
  • Page 106: Front Panel Problems

    Front Panel Problems If the analyzer appears to power-up normally but will not respond to keystrokes, verify that none of the keys are stuck. If the front panel keys are still not responding properly, remove the front panel and make sure the ribbon cable is properly connected between the front panel assembly and the CPU.
  • Page 107: Other Error Messages

    Other Error messages In some unusual cases, an error message similar to that shown below may occur. his may indicate a defective component, an anomaly in the rmware code, or an unspeci ed operating condition. In general, however, this message should never be seen. If it does appear, follow the instructions, then cycle power.
  • Page 108: Category 2 Failures - No Error Message, But Nonfunctional Measurement

    ategory 2 Failures - No Error Message, but Nonfunctional Measurement his group includes the A3 fractional-N/reference, A4 source board assemblies, and A5 receiver board assemblies. ypical problems include: Phase lock lost ransmission trace not close to 0 dB Power output problems Other RF problems Troubleshooting the A3 Fractional-N/ eference Assembly Check the Output Power...
  • Page 109: Detailed Fractional-N/Reference Roubleshooting

    0 to +4 dBm range. Any harmonics should be better than 16 dBc. Table 4-2. Source Frequency Versus Fractional-N Frequency HP 8711C/12C/30A HP 8713C/14C Source Frequency Fractional-N Frequency Source Frequency...
  • Page 110: Roubleshooting The A4 Source Assembly

    LO when the RF out is set to 50 MHz. he LO should always be 27.778 kHz the RF signal. Repeat for 3000 MHz (1300 MHz for HP 8711C/12C/30A). Power levels for the LO should be in the +6 to +14 dBm range, regardless of frequency.
  • Page 111 Insert artwork here. Figure 4-4. P 8711C/12C/30A Re ection Measurement with Through Cable Insert artwork here. Figure 4-5. P 8713C/14C Re ection Measurement with Through Cable 4-20 T roubleshoot ng and Block D agrams...
  • Page 112: A5 Receiver Assembly Diode Replacement

    When replacing the detector diodes, note the polarity of the existing parts and make sure the new ones are oriented the same! See Figure 4-6 (for HP 8711C/12C/30A) or Figure 4-7 (for HP 8713C/14C) for component location. You will have to remove the receiver shield to access these parts.
  • Page 113 Insert artwork here. Figure 4-6. P 8711C/12C/30A A5CR1, CR2, CR36, and CR37 Component Locations 4-22 T roubleshoot ng and Block D agrams...
  • Page 114 Insert artwork here. Figure 4-7. P 8713C/14C A5CR45, CR46, CR47, CR48, CR53, and CR54 Component Locations T roubleshoot ng and Block D agrams 4-23...
  • Page 115: Detailed Receiver Roubleshooting

    Trace at 200 dB A at trace at 200 dB indicates that the DSP is getting no data (or zero data). Make sure that the receiver and CPU boards are making proper connections to the backplane. he problem is most likely either in the ADCs on the receiver board, or the DSP circuitry on the CPU board. o determine the exact cause, test the DSP circuitry.
  • Page 116: Category 3 Failures - Inaccurate (But Reasonably Functional) Measurements

    ategory 3 Failures - Inaccurate (but reasonably functional) Measurements Troubleshooting Spurious esponses and Inaccurate Data Spurious Signals Perform the \Spurious Signals" test procedure in Chapter 1, \Performance ests." If the test fails, perform the \LO Power Correction" and \Fractional-N Spur Adjustment" procedures in \Adjustments,"...
  • Page 117: Spurs In The Data Race

    Spurs in the Data Trace Some spurs are unavoidable in this network/tuner analyzer con guration. Most of the predictable spurs can be eliminated by either using either the Spur Avoid or the Dither option ser's Guide in the Spur Avoid menu. See your instrument's for more information.
  • Page 118: Receiver Power Problems

    HP 8711C/12C/30A than in an HP 8713C/14C. Excessive ripple can indicate poor source or input match. Measure the match using the performance tests. If OK, try using attenuators or making an enhanced response calibration to improve match.
  • Page 119: Category 4 Failures: Peripheral Device Problems

    ategory 4 Failures: Peripheral Device Problems DIN Keyboard If a DIN keyboard interface test failure was reported during power-up, there may be a problem with the +5 V power supply for the DIN keyboard. Verify that the keyboard is connected properly. (If necessary, use a DIN (f) to mini-DIN (m) adaptor.) Make sure that the keyboard is compatible with the analyzer.
  • Page 120: Hp-Ib Systems

    HP-IB Systems If an HP-IB interface problem is indicated during power-up (with nothing connected to the HP-IB port), there may be a problem with the HP-IB controller chip (U524) or the interface chips (U525, U526). Replace the CPU board. Check the analyzer's HP-IB functions with a known working peripheral such as a plotter, printer, or disk drive.
  • Page 121: Ping Command

    Ping Command he analyzer has the built-in capability of performing a \ping" operation. Ping will request the analyzer to send a few bytes of information to a speci c LAN device. hat device will then signal the analyzer that it has received the information. he analyzer computes the approximate round trip time of the communication cycle and displays it.
  • Page 122 his establishes one way communication from the analyzer to the network. Reverse communication should also be veri ed. Determining this, though, is dependent upon your network setup and software. Generally you will need to issue a ping command using the IP address of the analyzer to be tested.
  • Page 123 Constructing a Cross-over Cable (continued) 3. Cut the wires going to pins 1, 2, 3, and 6. Strip away a small amount of insulation from each of the eight cut ends. a. Connect the wire from pin 1 on one side of the cable to the wire from pin 3 on the other side of the cable.
  • Page 124: Available Hp Lan Cables

    Set the IP addresses on two analyzers. he addresses can be set to anything, but they must be di erent. Make sure the subnet mask and gateway addresses are set to and that 0.0.0.0 the LAN is active ( ) on both analyzers. If necessary, refer to \How to Ping." LAN tate ON Connect the two analyzers together using either a crossover cable or a crossover hub.
  • Page 125 4-34 T roubleshoot ng and Block D agrams...
  • Page 126 PRINTER INSTRUCTIONS Please remove this page and insert \B"-size foldout: Figure 4-9, \HP 8711C/12C/30A Overall Block Diagram", drawing sd64c. Insert artwork here. Figure 4-9. P 8711C/12C/30A Overall Block Diagram T roubleshoot ng and Block D agrams 4-35...
  • Page 127 4-36 T roubleshoot ng and Block D agrams...
  • Page 128 Please remove this page and insert \B"-size foldout: Figure 4-10, \HP 8713C/14C A4 Source and A5 Receiver Block Diagram", drawing sd622c. Insert artwork here. Figure 4-10. P 8713C/14C A4 Source and A5 Receiver Assemblies Block Diagram T roubleshoot ng and Block D agrams 4-37...
  • Page 129 4-38 T roubleshoot ng and Block D agrams...
  • Page 130: Service Related Menus

    Service Related Menus Introduction his chapter describes the functions of the service key menus. hese menus are used to test, verify, adjust, control, and troubleshoot the analyzer. Internal diagnostics and adjustments include self-tests and adjustment tests. he service functions allow you to put the analyzer into di erent states to help with troubleshooting.
  • Page 131: Ests And Adjustments Menu

    Tests and Adjustments Menu : Allows you to select a diagnostic self-test. ests may be selected by elect elf-Test entering the number of the test with the keypad, or using the front-panel knob or keys to scroll through the list of tests. he number, description, and test status of the currently selected test are shown.
  • Page 132 Table 5-1. Analyzer Self-Tests Test Test Name escription Number 680x0 Processor Executes internal tests of 68030 main CPU and 68882 coprocessor. Checks all registers. Checks logic, math, shift/rotate, and bit manipulation instructions. BootROM Checksum Checksum of bootROM to verify bootROM rmware code. Main ROM Checksum Checksum of ash EPROM to check main rmware.
  • Page 133: Select Adjustment Menu

    Table 5-1. Analyzer Self-Tests (continued) Test Test Name escription Number Front Panel Key Prompts user to press any keys and displays information on the key pressed. Press PRESET three times to exit. Erase Non-Volatile SR M Tests all locations of battery-backed SR M by writing zeroes. This erases existing data.
  • Page 134 Table 5-2. Analyzer Adjustments Adjustment Title Comments Number Set Serial Number Not implemented; serial numbers can only be set over HP-IB. Indicates \Not Done" if there is no serial number; indicates \Passed" when a serial number is resident. LO Power Correction Sets a D C that varies the receiver LO output from the source.
  • Page 135: Instrument Info

    Instrument Info Displays a window with the following information: Analyzer model and rmware revision BootROM version Analyzer serial number Installed options System impedance Installed memory Update orr onst Menu For a complete description of when and how to use these keys, refer to\Storing and Recalling Correction Constants"...
  • Page 136: Service Utilities Menu 1

    Service Utilities Menu 1 his menu allows manual control of several sections of the A4 source and A5 receiver assemblies. his can be a helpful tool in troubleshooting these circuits. Caution are for factory use only Most of these utilities .
  • Page 137 One-port Directivity 10 dB (HP 8713C/14C) This data is related to the raw 5 dB directivity of the re ection port coupler (HP 8711C/12C/30 ) (but does not equal it). One-port Source Match 14 dB This represents the source match of the re ection port.
  • Page 138: Meas Cal Options Menu

    Meas al Options Menu he analyzer uses array of calibration data to improve the measurements made by the hardware. his menu allow you to disable the calibration, and view the calibration data arrays. : Determines whether cal arrays are used in processing data. Meas Cal ON off will switch OFF both user-performed cals and the default factory cal.
  • Page 139: Analog Bus Nodes

    Output of integrator in the source LO loop (LO INT on the schematic). Voltage decreases as source frequency increases. For the 8711C/12C/30 the voltage decreases about 9 volts over the frequency range. For the HP 8713C/14C the voltage decreases about 7 volts over a .3 to 1910 MHz range;...
  • Page 140: Service Utilities Menu 2

    Attenuator : Allows manual adjustment of the DAC which controls the LO output LO Power Adjust power. he LO DAC is used by the HP 8711C/12C/30A receiver board only. : FOR FAC ORY USE ONLY. Detector Zero DACs : FOR FAC ORY USE ONLY.
  • Page 141: View Array Master Menu/View Array Interpol Menu

    View Array Master Menu/View Array Interpol Menu hese keys allow you to view the actual calibration data arrays that are currently in use. he arrays are copied into a memory trace for easy analysis. his allows you to scale them, and use markers to read out actual values.
  • Page 142: Hp-Ib Command Reference For Service

    HP-IB ommand Reference for Service Some of the service menu keys have equivalent remote HP-IB commands. he analyzer uses the SCPI programming language. For more information about SCPI and HP-IB, refer to the Programming Guide \HP-IB Programming" section of the .
  • Page 143: Alphabetical Scpi Command Summary

    Alphabetical SCPI Command Summary his section contains the service-related HP-IB mnemonics recognized by the analyzer with a short description of each command. All commands have a query form unless speci ed in the \Form" column as command only or query only. o change a command into a query, add a \?". he \Form"...
  • Page 144: Theory Of Operation

    Theory of Operation Introduction his theory of operation begins with a general description of the operation of a network/tuner analyzer system. his is followed by more detailed operating theory for the analyzer in particular, divided into functional groups. he operation of each group is described brie y, to the assembly level only.
  • Page 145: Analyzer Functional Group

    Analyzer Functional Group Each functional group consists of one or more assemblies that perform one of the basic instrument functions. hese groups are the power supply, digital control, source, and receiver. Power Supply Theory he power supply group consists of the A6 power supply assembly. his switching power supply provides regulated DC voltages to power all assemblies in the analyzer through a connection to the backplane.
  • Page 146: A7 Display Assembly

    A number of processors on the CPU assembly allow the analyzer to interface with the outside world. he front panel processor handles inputs from the front panel keyboard and RPG. he super I/O processor is used to provide the following interfaces: Floppy disk controller controls the 3.5"...
  • Page 147: Source Heory

    (intermediate frequency) of 27.778 kHz. Note he following paragraphs describe an HP 8711C/12C/30A. he HP 8713C/14C is very similar. See the section \Di erences Between the HP 8711C/12C/30A and HP 8713C/14C (1300 MHz vs 3000 MHz)" at the end of this chapter.
  • Page 148 A5 receiver assembly is responsible for separating and measuring the RF signals and converting these signals into digital data for further processing by the A2 CPU. Figure 6-3 shows a simpli ed block diagram of the HP 8711C/12C/30A receiver assembly. Note he following paragraphs describe an HP 8711C/12C/30A.
  • Page 149 Insert artwork here. Figure 6-3. Simpli ed Receiver Block Diagram he source RF output from the A4 source assembly is input into the receiver. he signal passes through an optional step attenuator (standard for the HP 8730A) and/or AM delay modulator, then through two directional couplers.
  • Page 150: Hp 8713C/14C A4 Source Assembly

    HP 8713C/14C for an overall view of these two assemblies. As in the HP 8711C/12C/30A, the source outputs both RF and LO signals that are separated by 27.778 kHz, however the methods used to generate these signals are slightly di erent. In the receiver, the re ection port coupler has changed signi cantly.
  • Page 151: A5 Receiver Assembly

    LO power adjustment (adjustment #101). Of course, all input components have been modi ed to perform at 3 GHz, but from a functional point of view, little else is changed from the HP 8711C/12C/30A receiver board. Refer to the block diagrams in Chapter 4.
  • Page 152: Parts List Analyzer Hardware

    Parts List Analyzer Hardware he analyzer has been designed to have a minimal number of di erent screw types. Most applications require one of only two screw types. All are ORX screws requiring a ORX driver (PN=pan head; FL= at head). Listed below are all the required screws. For clarity, these are not listed on the following parts lists for each assembly.
  • Page 153 Table 7-1. P 8711C/12C/30A Major Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity Front panel assembly (removed) See Table 7-3 CPU assembly (not shown) See Table 7-4 Fractional-N/reference assembly See Table 7-5 Source assembly See Table 7-6...
  • Page 154 Table 7-2. P 8713C/14C Major Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity Front panel assembly (removed) See Table 7-3 CPU assembly (not shown) See Table 7-4 Fractional-N/reference assembly See Table 7-5 Source assembly See Table 7-7 Receiver assembly See Table 7-11 (HP 8713C/14C standard)
  • Page 155: A1 Front Panel Assembly And Cable Locations

    Probe power cable assembly (includes socket) 08712-60035 RPG (Rotary Pulse Generator) assembly 1990-1525 Knob (for RPG, on reverse side) 08712-40005 Fuse for power probe socket, 0.75 , 125V 2110-0424 Label, HP 8711C 08711-80038 Label, HP 8712C 08712-80014 Label, HP 8713C 08713-80002 Label, HP 8714C 08714-80002...
  • Page 156 Table 7-4. A2 CPU Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity 2 CPU assembly (new) 08712-60042 2 CPU assembly (R-E) 08712-69042 DR M SIMM (72 pin) 8 MB* 1818-5623 DR M SIMM (72 pin) 16 MB* 1818-5621 DR M SIMM (72 pin) 32 MB* 1818-5622...
  • Page 157: A3 Fractional-N/Reference Assembly And Cable Locations

    Table 7-5. A3 Fractional-N/Reference Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity 3 Fractional-N/reference circuit board assembly (new) 08712-60011 3 Fractional-N/reference circuit board assembly (R-E) 08712-69011 J6 external reference input jack, BNC 1250-1842 Hex nut for BNC jack (not shown) 2950-0054 Washer for BNC jack (not shown) 2190-0068...
  • Page 158 Table 7-6. P 8711C/12C/30A A4 Source Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity 4 Source assembly (new) 08712-60004 4 Source assembly (R-E) 08712-69004 Front shield (top) 08711-20022 Front shield (bottom) 08711-20023 Front shield gasket...
  • Page 159 Table 7-7. P 8713C/14C A4 Source Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity 4 Source assembly (new) 08713-60051 4 Source assembly (R-E) 08713-69051 Front shield (top) 08713-20039 Front shield gasket (top) 08713-20028 Front shield (bottom) 08713-20041 Front shield gasket (bottom) 08713-20030...
  • Page 160 Table 7-8. P 8711C/12C A5 Receiver Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity 5 receiver assembly (new), 50 08712-60056 5 receiver assembly (R-E), 50 08712-69056 5 receiver assembly (new), 75 08712-60055 5 receiver assembly (R-E), 75...
  • Page 161 Table 7-9. P 8711C/12C A5 Receiver Optional Con gurations Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity ttenuator assembly (board and attenuator) 08712-60023 Cable, TTEN OUT to J3 08712-20015 Cable, RF IN to TTEN IN 08712-20023...
  • Page 162 Table 7-10. P 8730A A5 Receiver Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity 5 receiver assembly (new), 75 08712-60055 5 receiver assembly (R-E), 75 08712-69055 Test port assembly, 75 (connectors and bracket) 08711-60039 Connector, BNC, auxiliary input 1250-1842 Hex nut for BNC connector 2950-0054...
  • Page 163 Table 7-11. P 8713C/14C A5 Receiver Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity 5 Receiver assembly (new), 50 08713-60060 5 Receiver assembly (R-E), 50 08713-69060 5 Receiver assembly (new), 75 08713-60052 5 Receiver assembly (R-E), 75 08713-69052 Test port assembly, 50 (connectors and bracket) 08711-60038...
  • Page 164 Table 7-12. P 8713C/14C A5 Receiver Optional Con gurations Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity ttenuator assembly (board and attenuator) 08712-60023 Cable, RF IN to TTEN IN 08713-20044 Cable, TTEN OUT to COUPLER IN 08713-20016 Cable, ribbon, options 8120-6475...
  • Page 165: A6 Power Supply Assembly And Cable Locations

    Table 7-13. A6 Power Supply Assembly and Cable Locations Insert artwork here. Insert artwork here. Item Description HP Part Number Quantity 6 power supply assembly (new) 0950-2201 6 power supply assembly (R-E) 5062-3437 Fuse, 5 , 250V, time-lag (5 20 mm) 2110-0882 Fan assembly 5062-3412...
  • Page 166: A7 Display Assembly And Cable Locations

    Table 7-14. A7 Display Assembly and Cable Locations Insert artwork here. Item Description HP Part Number Quantity Display enclosure 08712-60010 CRT with board 2090-0558 Switch, intensity control, and cable assembly 08711-60165 Cable, display 20C w/headers 8120-5525 Lock washer .256 in. ID 2190-0067 Nut 1/4-36 2950-0216...
  • Page 167 Fuse, power supply 5 , 250V, time delay, 5 20 mm (2) 2110-0882 SOFTW RE HP 8711C/12C/13C/14C/HP 8730 Performance test program (RMB) 08712-10017 HP 8711C/12C/13C/14C/HP 8730 Performance test program (PC version) 08712-10018 Example programs disk (LIF format) 08712-10021 Example programs disk (DOS format) 08712-10019...
  • Page 168 UPGR DE KITS ttenuator (Option 1E1) upgrade kit 08711-60067 IB SIC (Option 1C2) upgrade kit 08711-60164 HP 8711C/12C/13C/14C/HP 8730 Firmware kit 08712-60047 M delay kit (does not include detectors or power splitter) 08711-60062 Option 1F7 (L N) upgrade kit 08712-60052...
  • Page 169 HP 8711C/12C/13C/14C/30 IB SIC Guide 08712-90045 HP 8711C/12C/13C/14C Option 100 User's Guide Supplement 08712-90060 HP 8711C/12C/13C/14C C TV Quick Start Guide (Option 100) 08712-90076 HP 8711C/12C/13C/14C Cellular ntenna Quick Start Guide (Option 100) 08712-90077 HP 8711C/12C/13C/14C/30 L N Option 1F7 User's Guide Supplement 08712-90062 Scheduled for availability in 1998.
  • Page 170 orrection onstants and Firmware Storing and Recalling orrection onstants ( ) Note Firmware and correction constants reside in segmented ash EPROMs. Because the EPROMs are segmented, it is possible to upgrade either rmware or correction constants independently. his is di erent from the previous HP 8711A and HP 871xB analyzers which required the simultaneous updating of both correction constants and rmware.
  • Page 171: Storing Correction Constants To Disk

    Correction constants are what give the analyzer its accuracy as well as its default calibration. Incorrect or missing correction constants will result in the following poor performance: Non-zero transmission trace when a good quality through cable is connected Non-zero return loss measurement with a short or open circuit Poor directivity Output power inaccuracy Analyzer-speci c correction constants are provided with each instrument shipped from the...
  • Page 172: Loading Correction Constants From Disk

    Loading Correction Constants from Disk his will load a copy of the CC data that is on disk into temporary RAM. Once in RAM, the analyzer will continue to use that data until turned o . A warning message will be displayed if some adjustments have not been done or if the serial number contained in the le does not match the instrument serial number.
  • Page 173: Upgrading Or Re-Installing Firmware

    Upgrading or Re-Installing Firmware Firmware can be upgraded at any time without the need for the correction constants disk. Upgrading rmware will not a ect the correction constants, but it will erase any data stored in the non-volatile memory such as instrument states and programs. If these les are needed, copy them to a oppy disk before proceeding.
  • Page 174: Safety, Warranty, And Assistance

    Safety, Warranty, and Assistance Safety Symbols he following safety symbols are used throughout this manual. Familiarize yourself with each of the symbols and its meaning before operating this instrument. Caution Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or adhered to, would result in damage to or destruction of the instrument.
  • Page 175: General Safety Considerations

    General Safety onsiderations Safety Earth Ground Warning This is a Safety Class I product (provided with a protective earthing ground incorporated in the power cord). The mains plug shall only be inserted in a socket outlet provided with a protective earth contact. Any interruption of the protective conductor, inside or outside the instrument, is likely to make the instrument dangerous.
  • Page 176: Warranty

    Warranty Note he actual warranty on your instrument depends on the date it was ordered as well as whether or not any warranty options were purchased at that time. o determine the exact warranty on your instrument, contact the nearest Hewlett-Packard sales or service oce with the model and serial number of your instrument.
  • Page 177: Assistance

    Assistance Product maintenance agreements and other customer assistance agreements are available for Hewlett-Packard products. For any assistance, contact your nearest Hewlett-Packard Sales and Service Oce. Shipment for Service If you are sending the instrument to Hewlett-Packard for service, ship the analyzer to the nearest HP service center for repair, including a description of any failed test and any error message.
  • Page 178 Table 9-1. ewlett-Packard Sales and Service Oces UNITE STATES Instrument Support Center Hewlett-Packard Company (800) 403-0801 EUROPEAN FIEL OPERATIONS Headquarters France Germany Hewlett-Packard S. . Hewlett-Packard France Hewlett-Packard GmbH 150, Route du Nant-d' vril 1 venue Du Canada Hewlett-Packard Strasse 1217 Meyrin 2/Geneva Zone D' ctivite De Courtaboeuf 61352 Bad Homburg v.d.H...
  • Page 180: Index

    Index A1 front panel assembly replacement, 3-3 B* amplitude correction adjustment, 2-26 A2 CPU assembly replacement, 3-5 B amplitude correction adjustment, 2-24 A3 fractional-N/reference assembly bootROM version, 5-7 replacement, 3-9 A4 source assembly replacement, 3-10 A5 receiver assembly replacement, 3-11 calibration data arrays, view, 5-13 A6 power supply assembly replacement, category 1 failures...
  • Page 181 3-17 how to order, 3-17 how to use this guide, iii HP 8711C/12C/30A:source, 7-6 HP-IB command reference HP 8711C/12C/30A:source cables, 7-6 for service, 5-14 HP 8711C/12C:receiver, 7-8 syntax summary, 5-14 HP 8711C/12C:receiver cables, 7-8 HP 8711C/12C:receiver cables, optional...
  • Page 182 power supply cables, 7-13 A1 front panel assembly, 3-3 rebuilt-exchange replacement assemblies, A2 CPU assembly, 3-5 3-17 A3 fractional-N/reference assembly, 3-9 screw types, 7-1 A4 source assembly, 3-10 service tools, 7-16, 7-17, 7-18 A5 receiver assembly, 3-11 upgrade kits, 7-17 A6 power supply assembly, 3-13 parts, replacement, 7-1 A7 display assembly, 3-14...
  • Page 183 IBASIC example programs disk, 7-16 display assembly, 6-3 performance test, 1-11 fractional-N/reference assembly, 6-4 performance test program, 7-16 front panel assembly, 6-2 source functional group, 6-2 (A4) assembly replacement, 3-10 introduction, 6-1 assembly theory, 6-4 power supply assembly, 6-2 harmonics, 1-3 receiver, 6-6 power (ALC) correction adjustment, 2-21 receiver assembly, 6-8...

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