Tektronix RSA3308A Service Manual
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Tektronix RSA3308A Service Manual

Tektronix RSA3308A Service Manual

3 ghz & 8 ghz real-time spectrum analyzers
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Service Manual
RSA3303A & RSA3308A
3 GHz & 8 GHz Real-Time Spectrum Analyzers
071-1412-02
This document applies to firmware version 3.20
and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com

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  • Page 1 Service Manual RSA3303A & RSA3308A 3 GHz & 8 GHz Real-Time Spectrum Analyzers 071-1412-02 This document applies to firmware version 3.20 and above. Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so.
  • Page 2 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material.
  • Page 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located.
  • Page 5 ........... . . 4- - 49 RSA3303A & RSA3308A Service Manual...
  • Page 6 ........10- - 3 RSA3303A & RSA3308A Service Manual...

  • Page 7: Table Of Contents

    ........5- -33 RSA3303A & RSA3308A Service Manual...
  • Page 8 ... . . 6- -53 Figure 6- -26: RF1 modules removal - - 2 (RSA3308A) ... . . 6- -55 Figure 6- -27: Front panel assembly removal .
  • Page 9 6- -78 Figure 6- -38: Bottom view for cable interconnection (RSA3303A) 6- -79 Figure 6- -39: Bottom view for cable interconnection (RSA3308A) 6- -80 Figure 6- -40: A70 DC power supply board .....
  • Page 10 Table 5- -3: Calibration items ....... . 5- -21 RSA3303A & RSA3308A Service Manual...
  • Page 11 ......6- -82 Table 6- -8: Symptoms and faulty modules ..... 6- -83 RSA3303A & RSA3308A Service Manual...
  • Page 12 Table of Contents viii RSA3303A & RSA3308A Service Manual...
  • Page 13 Terms in this Manual. These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property. RSA3303A & RSA3308A Service Manual...
  • Page 14 WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: WARNING Protective Ground CAUTION High Voltage (Earth) Terminal Refer to Manual RSA3303A & RSA3308A Service Manual...
  • Page 15 Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. RSA3303A & RSA3308A Service Manual...
  • Page 16 Service Safety Summary RSA3303A & RSA3308A Service Manual...
  • Page 17 These instructions include cleaning, module removal and installation, and fault isolation to the module. H Options contains a statement referring you to the RSA3303A and RSA3308A User Manual. H Electrical Parts List contains a statement referring you to Mechanical Parts List, where both electrical and mechanical modules are listed.
  • Page 18 (the serial number is labeled on the bottom-right corner of the rear panel): H S/N B020000 and above H S/N below B020000 and J300100 and above In this manual, trigger-related descriptions and specifications are marked with the appropriate serial number if necessary. RSA3303A & RSA3308A Service Manual...
  • Page 19 Finding Other Information Other documentation for the RSA3303A and RSA3308A analyzers includes: H The RSA3303A and RSA3308A User Manual contains a tutorial to quickly describe how to operate the analyzer. It also includes an in-depth discussion on how to more completely use the analyzer features.
  • Page 20 Preface RSA3303A & RSA3308A Service Manual...
  • Page 21 Introduction This manual contains information needed to properly service the RSA3303A and RSA3308A Real-Time Spectrum Analyzers as well as general information critical to safe and effective servicing. To prevent personal injury or damage to the analyzer, consider the following before attempting service: H The procedures in this manual should be performed only by a qualified service person.
  • Page 22 Introduction xviii RSA3303A & RSA3308A Service Manual...
  • Page 23 Specifications...
  • Page 25 Specifications This section contains the RSA3303A and RSA3308A Real-Time Spectrum Analyzers specifications. All specifications are guaranteed unless labeled Typical. Typical specifications are provided for your convenience. NOTE. In these tables, those warranted characteristics that are checked in the Performance Verification appear with the n symbol in the Characteristics column.

  • Page 26: Table 1- 1: Frequency

    RF/RF1, Frequency = 2 GHz, Span = 1 MHz Marker: ±1.2 kHz; Carrier frequency measurement: ±210 Hz RF2, Frequency = 5 GHz, Span = 1 MHz (RSA3308A only) Marker: ±1.5 kHz; Carrier frequency measurement: ±510 Hz RF3, Frequency = 7 GHz, Span = 1 MHz (RSA3308A only) Marker: ±1.7 kHz;...

  • Page 27: Table 1- 3: Noise Sideband

    - - 108 dBc/Hz 20 kHz - - 108 dBc/Hz 30 kHz - - 115 dBc/Hz 100 kHz - - 135 dBc/Hz 1 MHz - - 138 dBc/Hz 5 MHz - - 138 dBc/Hz 7 MHz 1- 3 RSA3303A & RSA3308A Service Manual...

  • Page 28: Table 1- 4: Input

    - - 30 to +20 dBm (2 dB step, Baseband) - - 51 to +30 dBm (1 dB step, RF/RF1) - - 50 to +30 dBm (1 dB step, RF2/RF3, RSA3308A only) - - 10 to +20 dBm (10 dB step, Option 03 IQ input) Accuracy (- - 10 to - - 50 dBm) ±0.2 dB (at 50 MHz, 10 dB attenuation, 20 to 30 _C)

  • Page 29: Table 1- 6: Dynamic Range

    - - 56 dBc (10 MHz to 1500 MHz) (- - 30 dBm tone at input mixer) - - 56 dBc (10 MHz to 1750 MHz, RSA3308A only) order intermodulation distortion (Reference level = +5 dBm, RF attenuation = Adjusted, Total signal power = - - 7 dBm)

  • Page 30: Table 1- 7: Spurious Response

    (Typical) - - 55 dBm (local frequency 5 to 6 GHz) - - 60 dBm (local frequency 6 to 7 GHz) - - 60 dBm (local frequency 7 to 7.7 GHz, RSA3308A only) Table 1- 7: Spurious response Characteristics Description...

  • Page 31: Table 1- 8: Acquisition

    10 kHz span 16 ksps 5 kHz span 8 ksps 2 kHz span 3.2 ksps 1 kHz span 1.6 ksps 500 Hz span 800 sps 200 Hz span 320 sps 100 Hz span 160 sps 1- 7 RSA3303A & RSA3308A Service Manual...

  • Page 32: Table 1- 10: Frame Time

    GMSK, GFSK, ASK and FSK Measurement filter Root cosine Reference filter Cosine, Gauss Filter parameter α/BT: 0.0001 to 1, 0.0001 step Maximum symbol rate 12.8 Msps Standard setup PDC, PHS, NADC, TETRA, GSM, CDPD, and Bluetooth 1- 8 RSA3303A & RSA3308A Service Manual...
  • Page 33 Center frequency = 3 GHz 0.7% 100 kHz 0.7% 1 MHz 1.5% 4 MHz 2.9% 10 MHz Center frequency = 5 GHz 0.7% 100 kHz (RSA3308A only) 0.7% 1 MHz 1.5% 4 MHz 3.0% 10 MHz 1- 9 RSA3303A & RSA3308A Service Manual...

  • Page 34: Table 1- 12: Analog Demodulation

    ±2% (- - 10 dBfs input at center, 10 to 60% modulation depth) PM demodulation ±3° (- - 10 dBfs input at center) FM demodulation ±1% of span (- - 10 dBfs input at center) 1- 10 RSA3303A & RSA3308A Service Manual...

  • Page 35: Table 1- 13: Rbw (Resolution Bandwidth)

    10 kHz span 10 Hz 5 kHz span 5 Hz 2 kHz span 2 Hz 1 kHz span 1 Hz 500 Hz span 1 Hz 200 Hz span 1 Hz 100 Hz span 1 Hz 1- 11 RSA3303A & RSA3308A Service Manual...

  • Page 36: Table 1- 14: Trigger (S/N B020000 And Above)

    Mask resolution 1 bin Trigger level 0 to - - 60 dBfs Real-time event detection bandwidth 5 MHz (1024 point FFT, 50% overlapping) Time domain Trigger level 0 to - - 40 dBfs 1- 12 RSA3303A & RSA3308A Service Manual...

  • Page 37: Table 1- 16: Measurement Function

    Number of views 1, 2, 3, or 4 Number of display traces Size 213 mm (8.4 in) Resolution 800 × 600 pixels Color Maximum 256 colors Display detector Positive peak, Negative peak, and Positive-Negative peak 1- 13 RSA3303A & RSA3308A Service Manual...

  • Page 38: Table 1- 18: Marker, Trace, And Display Line

    Storage medium Hard disk ≥20 GB 2.5 inch IDE Floppy disk 1.44 MB 3.5 inch Interface Printer port GPIB IEEE 488.1 10/100 BASE-T (IEEE 802.3) Mouse Keyboard Monitor out VGA (D-SUB 15 pins) 1- 14 RSA3303A & RSA3308A Service Manual...

  • Page 39: Table 1- 20: Power Requirements

    Description Preamp power connector Connector type LEMO 6 poles Pin assignment Pin 1: NC, Pin 2: ID1, Pin 3: ID2, Pin 4: - - 12 V, Pin 5: GND, Pin 6: +12 V 1- 15 RSA3303A & RSA3308A Service Manual...

  • Page 40: Table 1- 22: Physical Characteristics

    (20 G), half-sine, 11 ms duration Three shocks in each direction along each major axis, total of 18 shocks Cooling clearance Bottom 20 mm (0.79 in) Both sides 50 mm (1.97 in) Rear 50 mm (1.97 in) 1- 16 RSA3303A & RSA3308A Service Manual...

  • Page 41: Table 1- 24: Certifications And Compliances

    IEC61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use. Emissions which exceed the levels required by this standard may occur when this equipment is connected to a test object. 1- 17 RSA3303A & RSA3308A Service Manual...
  • Page 42 Pollution Degree 2 (as defined in IEC61010-1). Note: Rated for indoor use only. Safety Certification Compliance Equipment Type Test and measuring Safety Class Class 1 (as defined in IEC61010-1, Annex H) - - grounded product Operating Temperature Range +5 to +40 _C 1- 18 RSA3303A & RSA3308A Service Manual...
  • Page 43 Operating Information...
  • Page 45 Operating Information The operating information for this instrument is available in the RSA3303A and RSA3308A User Manual (Tektronix part number 071-1409-xx) that shipped with your product. 2- 1 RSA3303A & RSA3308A Service Manual...
  • Page 46 Operating Information 2- 2 RSA3303A & RSA3308A Service Manual...
  • Page 47 Theory of Operation...
  • Page 49 Theory of Operation This section describes the electrical operation of the RSA3303A and RSA3308A using the major circuit blocks or modules as shown in Figure 9- -1. RF Input Circuit The RF input circuit block consists of a relay for signal switching (Input Relay), Step Attenuator 1 and 2, Programmable Band-pass Filter (RSA3308A only), and a control circuit for these components.
  • Page 50 LO signal and A/D clock signal generated in the Oscillator block are highly stabilized signals locked with a 10 MHz reference signal, and are output to the 3 Converter and A10 A/D board, respectively. 3- 2 RSA3303A & RSA3308A Service Manual...
  • Page 51 In addition, re-sampling is performed to achieve the higher frequency resolution. I/Q signals output from the Digital Filters are sent to the Trigger Detector and Acquisition Memory. 3- 3 RSA3303A & RSA3308A Service Manual...
  • Page 52 In the A20 DDC board, the IF Level Trigger signal is generated based upon the data output from the A/D converter. The trigger signal is sent to the A40 Memory board that stops data acquisition at the timing corresponding with trigger position. 3- 4 RSA3303A & RSA3308A Service Manual...
  • Page 53 The Power Supply 1 output voltages are +5 V / +15 V / - -15 V / +24 V; the Power Supply 2 output voltages are +5 V / +12 V / - -12 V / +3.3 V. 3- 5 RSA3303A & RSA3308A Service Manual...
  • Page 54 The GPIB controller is also installed on the Front Connection board, and its output bus is connected to the GPIB connector located on the real panel through the A50 Mother board and the A70 DC Power board. 3- 6 RSA3303A & RSA3308A Service Manual...
  • Page 55 Performance Verification...
  • Page 57 Diagnostics just referenced. Advantages: These procedures add direct checking of warranted specifica- tions. They require more time to perform and suitable test equipment is required. (Refer to Equipment Required on page 4- -10.) 4- 1 RSA3303A & RSA3308A Service Manual...
  • Page 58 “Press MODE: DEMOD > Digital Demod > Constellation”. Set the WCA280A analyzer controls: Press MODE: DEMOD > Digital Demod > Constellation. STOP. The symbol at the left is accompanied by information you must read to do the procedure properly. 4- 2 RSA3303A & RSA3308A Service Manual...
  • Page 59 The Functional Tests utilize the internal calibration signal as a test-signal source for further verifying that the analyzer functions properly. The Diagnostics uses internal routines to verify that the instrument functions properly and passes the internal circuit tests. The following section provides the details. 4- 3 RSA3303A & RSA3308A Service Manual...
  • Page 60 Press INPUT > Signal Input Port... > Cal. The spectrum of the calibration signal appears. d. Check that “INPUT: CAL” and “FREE RUN” are displayed in the status indicator at the upper right of the screen (see Figure 4- -1). 4- 4 RSA3303A & RSA3308A Service Manual...

  • Page 61: Figure 4- 1: Spectrum Of The Calibration Signal (50 Mhz, - 20 Dbm)

    Press the SPAN key on the front panel. b. Confirm that the span is 15 MHz and the RBW is 80 kHz in the setup display on the upper part of the screen (see Figure 4- -2). 4- 5 RSA3303A & RSA3308A Service Manual...

  • Page 62: Figure 4- 2: Setup Display

    Figure 4- -3. e. Using the numeric keypad, set the reference level back to 0 dBm. (Press 0 > ENTER, in that order, on the keypad.) 4- 6 RSA3303A & RSA3308A Service Manual...

  • Page 63: Figure 4- 3: Reference Level Setting And A/D Overflow Indicator

    Press the RUN/STOP key on the front panel to stop data acquisition. Confirm that the trace display freezes and PAUSE is displayed in the status indicator at the top right of the screen. 4- 7 RSA3303A & RSA3308A Service Manual...

  • Page 64: Figure 4- 5: Diagnostic Screen

    You may press the All side key to run all the tests. 5. Check the result shown in the lower left view with “Pass” or “Fail”. The process is graphically displayed on the upper views. Figure 4- 5: Diagnostic screen 4- 8 RSA3303A & RSA3308A Service Manual...
  • Page 65 Performance Tests This section contains a collection of procedures for checking that the RSA3303A and RSA3308A Real-Time Spectrum Analyzers perform as warranted. STOP. These procedures extend the confidence level provided by the basic procedures described on page 4- -3. Perform the basic procedures first and then perform the following procedures if desired.

  • Page 66: Table 4- 3: Test Equipment

    Output level: - - 30 dBm to +10 dBm; option 1E1 Accuracy: <±1 dB (option UNX recommended) For RSA3303A, you can use the signal generator with the frequency range of 10 kHz to 3 GHz, for example Agilent 8648C. 4- 10 RSA3303A & RSA3308A Service Manual...
  • Page 67 Storing flatness and spurious floppy disk (for each procedures described on pages 5- - 6 DOS-compatible floppy disk correction data for the signal signal generator used) and 5- - 13 generators (Item 1, 2, and 3) 4- 11 RSA3303A & RSA3308A Service Manual...

  • Page 68: Figure 4- 6: Auto Test Initial Screen

    CAL > Service... > Password (270833) > PV (see Figure 4- -6). RSA3308A only Figure 4- 6: Auto test initial screen The PV menu has the following controls: PV Select. Selects the test items as shown in Table 4- -4. 4- 12 RSA3303A & RSA3308A Service Manual...

  • Page 69: Table 4- 4: Test Item Selection

    All Band. Performs the tests in all bands: Baseband, RF1, RF2, and RF3. RF2 and RF3 are for RSA3308A only. Measurement bandwidth: 1 MHz to 3 GHz (RSA3303A) / 8 GHz (RSA3308A) BB. Performs the tests in the baseband. Measurement bandwidth: 1 MHz to 20 MHz RF1.
  • Page 70 Uses two signal generators: Item 1, which covers the baseband and RF1 band, and Item 2, which covers the RF2 and RF3 bands. RF2 and RF3 are for RSA3308A only. Procedure 1 Performs the auto tests using one signal generator (Item 3), which covers all measurement bands: Baseband, RF1, RF2, and RF3 (RF2 and RF3 are for RSA3308A only).
  • Page 71 5. Check the test results: Check the Pass/Fail results displayed on the lower left of the screen (see Figure 4- -7). If any tests fail, go to When the Auto Tests Fail on page 4- -19. 4- 15 RSA3303A & RSA3308A Service Manual...

  • Page 72: Figure 4- 7: Auto Test Result Display Example

    Performs the auto tests using two signal generators: Item 1, which covers the baseband and RF1 band, and Item 2, which covers the RF2 and RF3 bands (RF2 and RF3 are for RSA3308A only). Equipment Two signal generators (Items 1 and 2) Required One 50 Ω...
  • Page 73 H Press the SG Type side key to select the manufacturer of the generator (Item 1) for the GPIB command system: HP or Anritsu. H Press the SG Address side key and set the generator address. H Press the Cancel- -Back (top) side key. 4- 17 RSA3303A & RSA3308A Service Manual...
  • Page 74 If the instrument fails any tests, go to When the Auto Tests Fail on page 4- -19. STOP. Steps 6 through 8 are the tests in the RF2 and RF3 bands for RSA3308A only. For RSA3303A, skip to step 9.

  • Page 75: Table 4- 5: Procedure For Failed Test Item

    Press the SG side key to select the manufacturer of the generator for the GPIB command system: HP or Anritsu. b. Press the GPIB Address side key and set the generator address. 4- 19 RSA3303A & RSA3308A Service Manual...
  • Page 76 6. Perform the test: Press the Measurement side key to run the test. Check that the test passes on the right bottom of the screen. 7. Repeat steps 5 and 6 for all the frequencies listed in the log file. 4- 20 RSA3303A & RSA3308A Service Manual...
  • Page 77 H 10 MHz reference output H Absolute amplitude accuracy H Input attenuator setting uncertainty H Spectrum purity order intermodulation distortion H Frequency readout accuracy H Spurious response H Displayed average noise level H Residual response 4- 21 RSA3303A & RSA3308A Service Manual...

  • Page 78: Figure 4- 8: Initial Test Hookup

    ....2. Check the frequency: Check that the frequency counter reads 10 MHz 1.2 Hz. 3. Disconnect the hookup: Disconnect the cable at REF OUT. 4- 22 RSA3303A & RSA3308A Service Manual...

  • Page 79: Figure 4- -9: Initial Hookup For Setting Up The Power Meter And

    See Figure 4- -10 on page 4- -24. e. Turn on POWER REF and execute the calibration. Disconnect the RF input of the power sensor from the reference output of the power meter. 4- 23 RSA3303A & RSA3308A Service Manual...

  • Page 80: Figure 4- 10: Hookup For Calibrating The Power Sensor

    ....10 MHz d. Adjust the output level of the signal generator so that the power meter reads - -10 dBm 0.05 dBm. e. Disconnect the cable from the power sensor input. 4- 24 RSA3303A & RSA3308A Service Manual...
  • Page 81 Performance Tests 3. Prepare for the test: a. Hook up the instruments: Connect the signal generator output through a 50 Ω N-N coaxial cable to the RSA3303A/RSA3308A INPUT. See Figure 4- -12. RSA3303A/RSA3308A Signal generator Output 50 Ω N-N coaxial cable Figure 4- 12: Hookup for checking the absolute amplitude accuracy b.
  • Page 82 7. Modify the test hookup and preset the instrument controls: a. Hook up the instruments: Connect the signal generator output through a 50 Ω N-N coaxial cable to the RSA3303A/RSA3308A INPUT. See Figure 4- -12 on page 4- -25. b. Calibrate the analyzer gain: Press CAL > Calibrate Gain.

  • Page 83: Figure 4- 13: Initial Test Hookup

    50 Ω N-N coaxial cable Figure 4- 13: Initial test hookup c. Initialize the analyzer: H Press the SYSTEM key on the front panel. H Press the Reset All to Factory Defaults side key. 4- 27 RSA3303A & RSA3308A Service Manual...
  • Page 84 Repeat substeps 3a through d for attenuation from 2 to 30 dB in 2 dB steps. 4. Modify the generator controls: Amplitude ....- -5 dBm 4- 28 RSA3303A & RSA3308A Service Manual...
  • Page 85 ) is within 0.5 dB. e. Repeat substeps 7a through d for attenuation from 32 to 50 dB in 2 dB steps. 8. Disconnect the test equipment: Disconnect the cable at the analyzer input. 4- 29 RSA3303A & RSA3308A Service Manual...

  • Page 86: Figure 4- 14: Initial Test Hookup

    H Press the TRACE/AVG key. H Press the side key Trace 1 Type... > Average. H Press the Number Of Averages side key and set the value to 50 using the general purpose knob. 4- 30 RSA3303A & RSA3308A Service Manual...
  • Page 87 H Press the RBW/FFT key on the front panel. H Press the RBW/FFT side key to select Man. H With the RBW side key, set the RBW to 2 kHz. 4- 31 RSA3303A & RSA3308A Service Manual...
  • Page 88 Check against limits: Read the phase noise (C/No) at the bottom of the screen. Confirm that the value is 125 dB/Hz or more. 5. Disconnect the test equipment: Disconnect the cable at the analyzer input. 4- 32 RSA3303A & RSA3308A Service Manual...
  • Page 89 ....0 dBm ALC BW ....100 Hz 4- 33 RSA3303A & RSA3308A Service Manual...
  • Page 90 H Press MARKERS: A or " to place the marker on the signal of 2000.15 MHz. H Adjust the generator (Item 4) output level so that the signal level is - -10 dBm. 4- 34 RSA3303A & RSA3308A Service Manual...
  • Page 91 Check against limits: Read the first and the second marker readouts. Confirm that the larger value meets the requirement of - -74 dBc. 3. Disconnect the test equipment: Disconnect the cable at the analyzer input. 4- 35 RSA3303A & RSA3308A Service Manual...

  • Page 92: Figure 4- 15: Initial Test Hookup

    2. Check frequency accuracy in the baseband: a. Modify the analyzer default settings: H Press the FREQUENCY/CHANNEL key on the front panel. H With the Center Freq side key, set the frequency to 10 MHz using the numeric keypad. 4- 36 RSA3303A & RSA3308A Service Manual...
  • Page 93 H Read the measurement result at the bottom of the screen. Confirm that the value is 2 GHz 210 Hz. STOP. Steps 4 and 5 are the tests in the RF2 and RF3 bands for RSA3308A only. For RSA3303A, skip to step 6.
  • Page 94 Performance Tests 4. Check frequency accuracy in the RF2 band for RSA3308A: a. Modify the generator control: Frequency ....5 GHz b. Modify the analyzer controls: H Press the FREQUENCY/CHANNEL key on the front panel.

  • Page 95: Figure 4- 16: Initial Test Hookup

    H Press the RBW/FFT key on the front panel. H Press the RBW/FFT side key to select Man. H With the RBW side key, set the value to 50 kHz using the general purpose knob. 4- 39 RSA3303A & RSA3308A Service Manual...
  • Page 96 H Press the PEAK key to place Marker 2 on the signal peak. H Read the delta marker readout (∆1- -2) on the screen. Check that the components other than the carrier meet the requirement as shown in Table 4- -6 (initially - -73 dBc). 4- 40 RSA3303A & RSA3308A Service Manual...

  • Page 97: Table 4- 6: Spurious Measurement

    Table 4- 6: Spurious measurement Band Frequency Spurious response Baseband 10 MHz - - 73 dBc RF (RSA3303A) / RF1 (RSA3308A) 2 GHz - - 73 dBc RF2 (RSA3308A only) 5 GHz - - 70 dBc RF3 (RSA3308A only) 7 GHz - - 70 dBc 3.

  • Page 98: Figure 4- 17: Initial Test Hookup

    H Press the RBW/FFT key on the front panel. H Press the RBW/FFT side key to select Man. H With the RBW side key, set the value to 10 kHz using the general purpose knob. 4- 42 RSA3303A & RSA3308A Service Manual...
  • Page 99 2. Check noise in the baseband: Read the measurement result of Density at the bottom of the screen. Check that the value is - -151 dBm/Hz or less. 3. Check noise at 2 GHz in the RF (RSA3303A) / RF1 (RSA3308A) band: a. Modify the analyzer control: H Press the FREQUENCY/CHANNEL key on the front panel.
  • Page 100 Performance Tests 5. Check noise at 7 GHz in the RF3 band for RSA3308A only: a. Modify the analyzer control: H Press the FREQUENCY/CHANNEL key on the front panel. H With the Center Freq side key, set the frequency to 7 GHz using the general purpose knob.

  • Page 101: Figure 4- 18: Initial Test Hookup

    H With the Span side key, set the span to 20 MHz using the general purpose knob. H Press the AMPLITUDE key on the front panel. H With the Ref Level side key, set the level to - -30 dBm using the general purpose knob. 4- 45 RSA3303A & RSA3308A Service Manual...
  • Page 102 H With the Center Freq side key, set the frequency to 1.5 GHz using the numeric keypad. H Press the SPAN key on the front panel. H With the Span side key, set the span to 3 GHz using the numeric keypad. 4- 46 RSA3303A & RSA3308A Service Manual...
  • Page 103 Check against limits: Confirm that the residual signal level is - -90 dBm or less at 100 MHz or more. 4. Check residual response in the RF1 band for RSA3308A only: a. Modify the analyzer controls: H Press the SPAN key on the front panel.
  • Page 104 Performance Tests 6. Check residual response in the RF3 band for RSA3308A only: a. Modify the analyzer controls: H Press the FREQUENCY/CHANNEL key on the front panel. H With the Center Freq side key, set the frequency to 7 GHz using the numeric keypad.
  • Page 105 Performance Tests Test Record Photocopy the following test record pages and use them to record the perfor- mance test results for your analyzer. 4- 49 RSA3303A & RSA3308A Service Manual...
  • Page 106 +0.5 dB 24 dB - - 0.5 dB +0.5 dB 26 dB - - 0.5 dB +0.5 dB 28 dB - - 0.5 dB +0.5 dB 30 dB - - 0.5 dB +0.5 dB 4- 50 RSA3303A & RSA3308A Service Manual...
  • Page 107 105 dB/Hz 5 MHz 1 MHz 125 dB/Hz order intermodulation distortion test Low limit Test result High limit order intermodulation distortion - - 74 dBc +5 dBm reference level, 2 GHz center frequency 4- 51 RSA3303A & RSA3308A Service Manual...
  • Page 108 RF1 (RSA3308A only) 0.5 to 3.5 GHz - - 90 dBm RF2 (RSA3308A only) 3.5 to 6.5 GHz - - 85 dBm RF3 (RSA3308A only) 5 to 8 GHz - - 85 dBm 4- 52 RSA3303A & RSA3308A Service Manual...
  • Page 109 Adjustment Procedures...
  • Page 111 This analyzer requires a 20 minute warm-up time in a 20 _C to 30 _C environ- ment before it is adjusted. Adjustments done before the operating temperature has stabilized may cause errors in performance. Test Equipment Table 5- -1 lists all test equipment required to adjust the analyzer. 5- 1 RSA3303A & RSA3308A Service Manual...

  • Page 112: Table 5- 1: Test Equipment

    Adjustment Procedures Equipment Required Table 5- -1 lists the test equipment required to adjust the RSA3303A/RSA3308A analyzer. Table 5- 1: Test equipment Item number and description Minimum requirements Example Purpose Signal generator Frequency range: 10 kHz to 3.5 GHz; Agilent 8648D...
  • Page 113 H Prepare the flatness correction file for the signal generators. H Prepare the spurious correction file for the signal generators. H Option 03 only. Install the setup files on the AWG520 waveform generator. 5- 3 RSA3303A & RSA3308A Service Manual...
  • Page 114 2e9=98.1 4e9=97.1 6e9=96.5 7e9=96.2 8e9=96.0 9e9=95.8 Save the file with the extension of .cal (for example, sensor2.cal). You can load the file to the power meter using a floppy disk or through network. 5- 4 RSA3303A & RSA3308A Service Manual...
  • Page 115 Press the Read Cal Factor side key. The file selection dialog box appears. g. Enter the file name and then press the Open button. The calibration factors are stored in the power meter. 5- 5 RSA3303A & RSA3308A Service Manual...
  • Page 116 H Procedure 2 on page 5- -10: Uses two signal generators: Item 1, which covers the baseband and RF1 band, and Item 2, which covers the RF2 and RF3 bands. RF2 and RF3 are for RSA3308A only. 5- 6 RSA3303A & RSA3308A Service Manual...

  • Page 117: Figure 5- 2: Initial Test Hookup

    Adjustment Procedures Procedure 1 Creates or updates the flatness correction file for one signal generator (Item 3), which covers all measurement bands: Baseband, RF1, RF2, and RF3 (RF2 and RF3 are for RSA3308A only). One signal generator (Item 3) Equipment Required...
  • Page 118 3. Let the instruments warm up: Allow a 20 minute warm-up period before you go to the next step. 4. Calibrate the power sensor: a. Modify the hookup: Connect the power sensor input to the power reference output of the power meter (see Figure 5- -3). 5- 8 RSA3303A & RSA3308A Service Manual...

  • Page 119: Figure 5- 3: Hookup For Calibrating The Power Sensor

    Remove the floppy disk by pressing the eject button. b. Turn off the signal generator, power meter, and analyzer. c. Disconnect the GPIB cables. d. Disconnect the power sensor and the N-N cable. 5- 9 RSA3303A & RSA3308A Service Manual...

  • Page 120: Figure 5- 4: Initial Test Hookup

    Creates or updates the flatness correction file for two signal generators: Item 1, which covers the baseband and RF1 band, and Item 2, which covers the RF2 and RF3 bands (RF2 and RF3 are for RSA3308A only). One signal generator (Item 1 or 2)
  • Page 121 Press the Band side key to select the measurement frequency band. H 230. Measures from 1 MHz to 3 GHz for RSA3303A. H Low. Measures from 1 MHz to 3.5 GHz for RSA3308A. H High. Measures from 3.5 GHz to 8 GHz for RSA3308A.

  • Page 122: Figure 5- 5: Hookup For Calibrating The Power Sensor

    Remove the floppy disk by pressing the eject button. b. Turn off the signal generator, power meter, and analyzer. c. Disconnect the GPIB cables. d. Disconnect the power sensor and the N-N cable. 5- 12 RSA3303A & RSA3308A Service Manual...
  • Page 123 Refer to page 5- - 1 Prerequisites 1. Prepare for the calibration: See the following figure for the hookup. RSA3303A/RSA3308A Signal generator GPIB cable Output 10 dB attenuator 50 Ω N-N coaxial cable 5- 13 RSA3303A & RSA3308A Service Manual...
  • Page 124 Adjustment Procedures a. Power off the RSA3303A/RSA3308A analyzer and the signal generator. b. Connect the analyzer and the generator with a GPIB cable. c. Connect the analyzer INPUT through a 10 dB attenuator followed by a 50 Ω N-N coaxial cable to the generator output.

  • Page 125: Table 5- 2: Compatibility Of The Spurious Correction File

    The auto calibration for the analyzer with Option 03 (IQ input) needs the Waveform Generator AWG520 waveform generator (Item 4). The waveform files must be installed from the AWG520 Setup Disk (floppy disk, Item 17, Tektronix part number (Option 03 Only) 063-3680-00) onto the AWG520 hard disk before executing the calibration.

  • Page 126: Figure 5- 6: Uncal Display

    (see Figure 5- -6). If this happens, run the gain calibration When UNCAL is displayed, run the gain calibration UNCAL FREE RUN Frequency Span Input Att Figure 5- 6: UNCAL display 5- 16 RSA3303A & RSA3308A Service Manual...

  • Page 127: Figure 5- 7: Calibration Menu

    CAL menu Calibrate all Gain calibration CAL key Center offset calibration DC offset calibration Auto Calibration (Select Yes or No) Figure 5- 7: Calibration menu 5- 17 RSA3303A & RSA3308A Service Manual...

  • Page 128: Figure 5- 8: Center Offset

    When you want to perform the gain, center offset, and DC offset calibration together, press the Calibrate All side key. NOTE. Enabling Auto Calibration (see Figure 5- -7) allows the analyzer to run the center offset calibration automatically as analyzer settings change. 5- 18 RSA3303A & RSA3308A Service Manual...

  • Page 129: Figure 5- 9: Dc Offset

    2. Press the Calibrate DC Offset side key. The calibration runs. It takes several seconds to complete the process. When you want to perform the gain, center offset, and DC offset calibration together, press the Calibrate All side key. 5- 19 RSA3303A & RSA3308A Service Manual...

  • Page 130: Figure 5- 10: Auto Calibration Initial Screen

    Target Files side key Calibration table Shows cal files. Figure 5- 10: Auto calibration initial screen The table on the screen shows cal files for each calibration item. Table 5- -3 summarizes the calibration items. 5- 20 RSA3303A & RSA3308A Service Manual...

  • Page 131: Table 5- 3: Calibration Items

    RF3). Measurement bandwidth: 1 MHz to 8 GHz. NOTE. You can select the calibration frequency band using the BB, BB+RF1, RF2+RF3, and RF1+RF2+RF3 side keys described on page 5- -22. IQ Gain. Option 03 only. Performs the IQ gain calibration. 5- 21 RSA3303A & RSA3308A Service Manual...
  • Page 132 20 MHz to 3 GHz (RSA3303A) / 3.5 GHz (RSA3308A) BB+RF1. Performs the selected calibration in the baseband and RF1 bands. Measurement bandwidth: 1 MHz to 3 GHz (RSA3303A) / 3.5 GHz (RSA3308A) RF2+RF3. Performs the selected calibration in the RF2 and RF3 bands.
  • Page 133 10 dB attenuator 50 Ω N-N coaxial cable a. Power off the RSA3303A/RSA3308A analyzer and the signal generator. b. Connect the analyzer and the generator with GPIB cable. c. Connect the analyzer INPUT through a 10 dB attenuator followed by a 50 Ω...

  • Page 134: Figure 5- 11: Auto Cal Result Display Example

    Press the All Band side key to run the calibration. NOTE. You can select the calibration items and bands as described in Service Cal Menu on page 5- -20. Created cal files Figure 5- 11: Auto cal result display example 5- 24 RSA3303A & RSA3308A Service Manual...
  • Page 135 Procedure 2. Performs the all band calibration using two signal generators: Item 1, which covers the baseband and RF1 band, and Item 2, which covers the RF2 and RF3 bands (RF2 and RF3 are for RSA3308A only). Equipment Two signal generators (Items 1 and 2) Required One 50 Ω...
  • Page 136 Press the BB+RF1 side key to run the calibration. STOP. Steps 4 and 5 perform calibration in the RF2 and RF3 bands for RSA3308A only. For RSA3303A, skip to step 6. 4. Change the signal generator: a. Disconnect the N- -N cable from the signal generator (Item 1) output.
  • Page 137 Q+ INPUT I- - and Q- - INPUTs coaxial cables a. Power off the RSA3303A/RSA3308A analyzer and the waveform generator. b. Connect the analyzer and the generator with a GPIB cable. c. Connect CH1 and CH2 of the generator through 50 Ω BNC coaxial cables to I+ INPUT and Q+ INPUT on the rear panel of the analyzer, respectively.
  • Page 138 Cal Menu on page 5- -20. 4. Disconnect the test equipment: a. Disconnect the cable from the analyzer input. b. Turn off the analyzer and generators. c. Disconnect the GPIB cables from all the ports. 5- 28 RSA3303A & RSA3308A Service Manual...

  • Page 139: Figure 5- 12: Initial Test Hookup

    ....Frequency 1 Gate time ....5- 29 RSA3303A & RSA3308A Service Manual...

  • Page 140: Figure 5- 13: R232 Location (Top View Of The Card Cage)

    3. Restore the analyzer to normal operation: a. Power off the analyzer. b. Refer to Removal and Installation Procedures in Section 6 to reinstall the cabinet and other modules removed in step 1. 5- 30 RSA3303A & RSA3308A Service Manual...
  • Page 141 The following procedures update the down-converter configuration file when replacing the RF3 module and/or YTF unit. The procedure for the YTF unit is for the RSA3308A analyzer only. STOP. Before doing the following procedures, note the gain and offset values which are indicated on the front surface of the module.

  • Page 142: Figure 5- 14: Test Hookup

    H With the Span side key, set the span to 3 GHz using the numeric keypad. 3. Check the spectrum: Confirm that a spectrum displays at 1.5 GHz. 4. Disconnect the test equipment: Disconnect the cable at INPUT. 5- 32 RSA3303A & RSA3308A Service Manual...

  • Page 143: Figure 5- 15: Test Hookup

    Adjustment Procedures Reconfiguration of the When replacing the YTF unit for RSA3308A, do the following procedure: YTF unit (RSA3308A Only) Equipment One signal generator (Item 2) Required One 50 Ω N-N coaxial cable (Item 9) 1. Modify the YTF unit DAC setting: a.
  • Page 144 H With the Span side key, set the span to 3 GHz using the numeric keypad. 3. Check the spectrum: Confirm that a spectrum displays at 6.5 GHz. 4. Disconnect the test equipment: Disconnect the cable at INPUT. 5- 34 RSA3303A & RSA3308A Service Manual...
  • Page 145 Maintenance...
  • Page 147 Maintenance This section contains the information needed to do periodic and corrective maintenance on the RSA3303A and RSA3308A Real-Time Spectrum Analyzers. The following subsections are included: H Preparation — Introduction plus general information on preventing damage to internal modules when doing maintenance.
  • Page 148 5. Handle circuit boards by the edges when possible. 6. Do not slide the modules over any surface. 7. Avoid handling modules in areas that have a floor or work-surface covering capable of generating a static charge. 6- 2 RSA3303A & RSA3308A Service Manual...
  • Page 149 2 = 200 to 500 V 7 = 400 to 1000 V (est.) 3 = 250 V 8 = 900 V 4 = 500 V 9 = 1200 V 5 = 400 to 600 V 6- 3 RSA3303A & RSA3308A Service Manual...
  • Page 150 Use only deionized water when cleaning the menu buttons or front-panel buttons. Use a 75% isopropyl alcohol solution as a cleaner and rinse with deionized water. Before using any other type of cleaner, consult your Tektronix Service Center or representative. 6- 4 RSA3303A & RSA3308A Service Manual...
  • Page 151 CAUTION. To prevent getting moisture inside the analyzer during external cleaning, use only enough liquid to dampen the cloth or applicator. 6- 5 RSA3303A & RSA3308A Service Manual...
  • Page 152 (75% solution) and rinse with warm deionized water. (A cotton- tipped applicator is useful for cleaning in narrow spaces and on circuit boards.) STOP. For further cleaning, contact your local Tektronix service center. 6- 6 RSA3303A & RSA3308A Service Manual...
  • Page 153 Bottom modules - - Power supply (see Figure 6- -7), Bottom modules - - RF1 for RSA3303A (see Figure 6- -8), Bottom modules - - RF1 for RSA3308A (see Figure 6- -9), Front panel modules (see Figure 6- -10), and Chassis modules (see Figure 6- -11) in this analyzer.
  • Page 154 If you are removing a module for service, begin by doing the procedure Access Procedure (page 6- -22). By following the instructions in that procedure, you remove the module to be serviced while removing the minimum number of additional modules. 6- 8 RSA3303A & RSA3308A Service Manual...
  • Page 155 Procedures for H Fan H Board guide bracket 6- - 63 chassis modules H Side panel assembly H Rear panel modules S/N below B020000 and J300100 and above. S/N B020000 and above. 6- 9 RSA3303A & RSA3308A Service Manual...
  • Page 156 Standard tool Needle-nose pliers Standard tool Retaining ring pliers Standard tool; inch minimum throw Angle-tip tweezers Standard tool Pliers Standard tool Soldering iron Standard tool Solder wick Standard tool Adhesive TRA-CON: Tra-Bond #BA-2114 6- 10 RSA3303A & RSA3308A Service Manual...
  • Page 157 Removal and Installation Procedures Analyzer Orientation Figure 6- -1 shows how the sides of the analyzer are referenced in this manual. DOWN Figure 6- 1: Analyzer orientation 6- 11 RSA3303A & RSA3308A Service Manual...
  • Page 158 Removal and Installation Procedures Rear foot Cabinet Handle Foot Flip stand Line cord Front cushion Foot pad Figure 6- 2: External modules 6- 12 RSA3303A & RSA3308A Service Manual...
  • Page 159 Removal and Installation Procedures RF5 module RF4 module RF3 module RF2 module Figure 6- 3: RF modules 6- 13 RSA3303A & RSA3308A Service Manual...
  • Page 160 Removal and Installation Procedures Disk bracket Stopper bracket Hard disk drive Shield bracket Shield bracket Floppy disk drive Front connection board CPU board Figure 6- 4: CPU board and disk modules 6- 14 RSA3303A & RSA3308A Service Manual...
  • Page 161 Removal and Installation Procedures A70 DC power board A40 DIFP board A10 A/D board A50 Mother board Figure 6- 5: Mother board and its daughter boards (S/N B020000 and above) 6- 15 RSA3303A & RSA3308A Service Manual...
  • Page 162 A70 DC power board A40 Memory board A30 Trigger board (optional) A20 DDC board A10 A/D board A50 Mother board Figure 6- 6: Mother board and its daughter boards (S/N below B020000 and J300100 and above) 6- 16 RSA3303A & RSA3308A Service Manual...
  • Page 163 Removal and Installation Procedures Power supply 1 Power supply 2 Insulator Shield bracket A71 AC power board Line filter Principal power switch Power supply 3 Figure 6- 7: Bottom modules - Power supply 6- 17 RSA3303A & RSA3308A Service Manual...
  • Page 164 Removal and Installation Procedures Step attenuator 2 A100 Interconnection board Input relay Bracket Step attenuator 1 Figure 6- 8: Bottom modules - RF1 (RSA3303A) 6- 18 RSA3303A & RSA3308A Service Manual...
  • Page 165 Programmable band-pass filter (YTF) Bracket Step attenuator 1 A150 YTF interface board Input relay Bracket Band relay Base plate A100 Interconnection board Step attenuator 2 Figure 6- 9: Bottom modules - RF1 (RSA3308A) 6- 19 RSA3303A & RSA3308A Service Manual...
  • Page 166 A60 Front key board connector Front panel keys Front bezel Rotary encoder Front panel Front bracket Power switch board LCD filter Low front panel General purpose knob Figure 6- 10: Front panel modules 6- 20 RSA3303A & RSA3308A Service Manual...
  • Page 167 Board guide bracket Rear panel PC board guide Blank plate bracket SMB - - BNC connector Board guide SMB cable GPIB connector Stopper bracket Main chassis Side panel Shield bracket Figure 6- 11: Chassis modules 6- 21 RSA3303A & RSA3308A Service Manual...
  • Page 168 - 40 A70 DC power board p.6- - 41 A50 Mother board p.6- - 43 S/N B020000 and above. S/N below B020000 and J300100 and above. Figure 6- 12: Guide to removal procedures 6- 22 RSA3303A & RSA3308A Service Manual...
  • Page 169 Remove the center two screws securing the cabinet to the rear panel. c. Slide the cabinet backward. As you remove the cabinet, take care not to bind or snag it on the analyzer’s internal cabling. 4. Reinstallation: Reverse step 3 to reinstall the cabinet. 6- 23 RSA3303A & RSA3308A Service Manual...
  • Page 170 Remove the two screws securing the front cushion to the side panel at each side. b. Lifting the front of the analyzer slightly, move the front cushion away. 4. Reinstallation: Reverse step 3 to reinstall the front cushion. 6- 24 RSA3303A & RSA3308A Service Manual...
  • Page 171 While holding the handle release, pull the handle out of the slot in the handle cap. Repeat the procedure to remove the handle from the other handle cap. c. Reverse the procedure to reinstall. 6- 25 RSA3303A & RSA3308A Service Manual...
  • Page 172 6c; then refer to the Cabinet procedure on page 6- -23 to reinstall the cabinet. Reverse steps 3 and 5, reversing each step, to reinstall the flip stand, then the handle caps (if removed), then the handle. 6- 26 RSA3303A & RSA3308A Service Manual...
  • Page 173 Removal and Installation Procedures Push down to flex handle and flatten against cabinet; then pull it out. Handle Cap Removal Handle Removal Flip Stand Removal Foot Removal Figure 6- 15: Cabinet modules removal 6- 27 RSA3303A & RSA3308A Service Manual...

  • Page 174: Rf2 Module

    Unplug the following SMB cables on the RF2 module: W208, W207, W307, W21, W22, and W23. c. Remove the two screws securing the module to the main chassis. Lift the module up. 4. Reinstallation: Reverse step 3 to reinstall the RF2 module. 6- 28 RSA3303A & RSA3308A Service Manual...
  • Page 175 Removal and Installation Procedures W208 W207 RF4 module RF5 module W105 W307 W106 W307 W207 W208 W201 W201 RF2 module RF3 module Figure 6- 16: RF modules removal 6- 29 RSA3303A & RSA3308A Service Manual...

  • Page 176: Rf3 Module

    Using a SMA torque driver with a long type bit (Item 5 and 6), disconnect the SMA cable W105 on the RF3 module. c. RSA3308A only. Using a inch wrench, disconnect the SMA cable W106 on the RF3 module.

  • Page 177: Rf4 Module

    W30, W29, W208, W32, W41, and W40. b. Remove the two screws securing the module to the main chassis. Lift the module up. 4. Reinstallation: Reverse step 3 to reinstall the RF5 module. 6- 31 RSA3303A & RSA3308A Service Manual...
  • Page 178 CPU board. c. Remove the two screw securing the board to the main chassis. Lift the board up away. 5. Reinstallation: Reverse step 3 and 4 to reinstall the CPU board. 6- 32 RSA3303A & RSA3308A Service Manual...
  • Page 179 Removal and Installation Procedures IDE2 FDD1 COM1 CPU board DIMM2 DIMM1 IDE1 COM2 J102 DVO converter Board stopper bracket Memory support bracket Figure 6- 17: CPU board removal 6- 33 RSA3303A & RSA3308A Service Manual...

  • Page 180: Hard Disk Drive P.6

    Remove the four screws securing the hard disk drive to the disk bracket. b. Lift the hard disk drive up away. 6. Reinstallation: Reverse step 4 and 5 to reinstall the hard disk drive. 6- 34 RSA3303A & RSA3308A Service Manual...
  • Page 181 Removal and Installation Procedures J122 J120 J112 J114 J110 J106 (FDD) J100 J104 J102 (HDD) A62 Front connection board Figure 6- 18: Disk module removal 6- 35 RSA3303A & RSA3308A Service Manual...

  • Page 182: Floppy Disk Drive P.6

    Remove the two screws securing the A62 board to the disk bracket. Lift the board up away. 4. Reinstallation: Reverse steps 2 and 3 to reinstall the A62 board. 6- 36 RSA3303A & RSA3308A Service Manual...

  • Page 183: A10 A/D Board P.6

    Remove the two screws securing the front shield bracket to the main chassis. d. Remove the two screws securing the back shield bracket to the main chassis. e. Lift up the the A10 board with the brackets. 6- 37 RSA3303A & RSA3308A Service Manual...
  • Page 184 Remove the eight screws securing the back shield bracket to the A10 board. Lift the back shield bracket away. 6. Reinstallation: Reverse steps 4 and 5 to reinstall the A10 board and interconnect cables. Option 03 only Figure 6- 19: A10 A/D board removal 6- 38 RSA3303A & RSA3308A Service Manual...

  • Page 185: A40 Difp Board

    3. Remove the A20 DDC board: See Figure 6- -20. Lift up the the A20 board. 4. Reinstallation: Reverse step 3 to reinstall the A20 board. 6- 39 RSA3303A & RSA3308A Service Manual...

  • Page 186: A30 Trigger Board

    6- -78 for the cable interconnection. a. Unplug the SMB cable W46 (TRIG OUT) and W47 (TRIG IN). b. Lift up the the A40 board. 4. Reinstallation: Reverse step 3 to reinstall the A40 board and interconnect cables. 6- 40 RSA3303A & RSA3308A Service Manual...
  • Page 187 Unplug the fan power cable from J300 and J302. b. Unplug the cable W75 (GPIB) from J410. c. Lift up the A70 board. 5. Reinstallation: Reverse step 3 to reinstall the A70 board and interconnect cables. 6- 41 RSA3303A & RSA3308A Service Manual...
  • Page 188 Rear support bracket RF5 module A70 DC power board Fan power GPIB A40 Memory board A30 Trigger board (Option 02 only) J300 A20 DDC board J302 J410 Figure 6- 20: Daughter boards removal 6- 42 RSA3303A & RSA3308A Service Manual...

  • Page 189: A50 Mother Board P.6

    Unplug the cables at J902, J900, J901, J912, J910, J911, J100, and J920 on the bottom of the analyzer. See Figure 6- -38 on page 6- -79 (RSA3303A) or Figure 6- -39 on page 6- -80 (RSA3308A) for cable interconnection.
  • Page 190 Removal and Installation Procedures Figure 6- 21: Mother board removal 6- 44 RSA3303A & RSA3308A Service Manual...

  • Page 191: Power Supply 1

    3. Remove the power supply 1: See Figure 6- -23. Also see Figure 6- -38 (RSA3303A) or 6- -39 (RSA3308A) for cable interconnection. a. Unplug the cables at J902, J900, and J901 on the A50 Mother board.
  • Page 192 W94 to CN1 W81 to CN53 W85 to CN51 CN53 W93 to CN1 CN51 CN61 CN81 CN53 CN51 CN61 W84 to CN81 CN61 and CN81 Figure 6- 22: Power supply 1 and 2 removal 6- 46 RSA3303A & RSA3308A Service Manual...

  • Page 193: A71 Ac Power Board

    3. Remove the A71 AC power board: See Figure 6- -23. Also see Figure 6- -38 (RSA3303A) or 6- -39 (RSA3308A) for cable interconnection. a. Unplug the cables at J100, J110, J120, and J130 on the A71 board.
  • Page 194 Removal and Installation Procedures W93 to J110 W94 to J130 J100 To CN1 on the J110 power supply 3 To J120 on A71 J120 J130 To J100 on A71 Figure 6- 23: Power supply modules removal 6- 48 RSA3303A & RSA3308A Service Manual...

  • Page 195: Line Filter

    Unplug the cables from the principal power switch. b. Pressing the catches at the top and the bottom of the switch, pull the switch out. 4. Reinstallation: Reverse step 3 to reinstall the principal power switch. 6- 49 RSA3303A & RSA3308A Service Manual...
  • Page 196 H For RSA3303A. Unplug the cables at J120, J230, and J130 on the A100 board. H For RSA3308A. Unplug the cables at J111, J120, J110, J130, and J280 on the A100 board. c. Unplug the SMB cables at J300 and J302 on the A100 board.
  • Page 197 Removal and Installation Procedures J100 J300 J302 J111 J230 J130 J280 J120 J110 A100 Interconnection board W122 W117 to J130 on A100 Step attenuator 2 W105 for RSA3308A Figure 6- 24: RF1 modules removal - 1 6- 51 RSA3303A & RSA3308A Service Manual...

  • Page 198: Step Attenuator 2

    Unplug the cable W117 on the step attenuator 2. c. Remove the four screws securing the attenuator to the main chassis. d. Using a inch wrench, disconnect the SMA cable W109 on the attenuator. 6- 52 RSA3303A & RSA3308A Service Manual...
  • Page 199 Removal and Installation Procedures W108 From J120 on A100 W109 W101 From J302 on A100 W107 Figure 6- 25: RF1 modules removal - 2 (RSA3303A) 6- 53 RSA3303A & RSA3308A Service Manual...

  • Page 200: Band Relay

    Using a inch wrench, disconnect the SMA cable W101 at the RF INPUT. b. Using a inch wrench, disconnect the SMA cable W106 at the 3 dB attenuator on the programmable band-pass filter. 6- 54 RSA3303A & RSA3308A Service Manual...
  • Page 201 When removing the A150 YTF interface board, unsolder it at four points. W123 W106 To J110 on A100 W114 W119 W120 W114A W121 W101 W122 W123 Figure 6- 26: RF1 modules removal - 2 (RSA3308A) 6- 55 RSA3303A & RSA3308A Service Manual...
  • Page 202 Lift up the band relay. d. Unsolder the A150 YTF interface board at four points to remove it from the band relay. 9. Reinstallation: Reverse steps 3 through 8 to reinstall the RF1 modules. 6- 56 RSA3303A & RSA3308A Service Manual...
  • Page 203 Unplug the cable at J60 on the A50 Mother board. c. Remove the two screws securing the front-panel assembly to the main chassis at each side. Lift the front-panel assembly away. 4. Reinstallation: Reverse step 3 to reinstall the front-panel assembly. 6- 57 RSA3303A & RSA3308A Service Manual...
  • Page 204 Using the 12 mm nutdriver, remove the nut securing the rotary encoder to the front bezel. 5. Reinstallation: Reverse steps 3 and 4 to reinstall the rotary encoder and the general purpose knob. 6- 58 RSA3303A & RSA3308A Service Manual...
  • Page 205 4. Remove the front panel: Unstick the front panel from the front bezel to remove it. 5. Reinstallation: Reverse steps 3 and 4 to reinstall the front panel, menu buttons, and front bezel. 6- 59 RSA3303A & RSA3308A Service Manual...
  • Page 206 3. Remove the preamplifier power connector: See Figure 6- -28. Using the 14 mm nutdriver, remove the nut securing the connector to the front bracket. 6- 60 RSA3303A & RSA3308A Service Manual...
  • Page 207 Using a inch wrench, disconnect the SMA cable W101 at RF INPUT. See Figure 6- -38 (RSA3303A, page 6- -79) or Figure 6- -39 (RSA3308A, page 6- -80) for cable interconnection. b. Using a #2 Phillips screwdriver, remove the three screws securing the connector plate to the front sub-panel.
  • Page 208 5. Reinstallation: Reverse steps 3 and 4 to reinstall the LCD display and interconnect cables. To J710 on the Mother board To J700 on the Mother board Figure 6- 29: LCD display removal 6- 62 RSA3303A & RSA3308A Service Manual...
  • Page 209 2. Orient the analyzer: Set the analyzer so its bottom is down on the work surface and its left side is facing you. 3. Perform the CPU Board and Disk Modules procedure on page 6- -32 to remove the CPU board and the disk bracket. 6- 63 RSA3303A & RSA3308A Service Manual...
  • Page 210 Pull out the stopper bracket to complete the removal. 5. Reinstallation: Reverse steps 3 and 4 to reinstall the side panel assembly. To J300 on A70 To J302 on A70 Figure 6- 30: Fan and side panel removal 6- 64 RSA3303A & RSA3308A Service Manual...
  • Page 211 2. Orient the analyzer: Set the analyzer so its bottom is down on the work surface and its left side is facing you. When removing the board guide, press its catches at both sides before pulling it backward. Figure 6- 31: Board guide bracket removal 6- 65 RSA3303A & RSA3308A Service Manual...
  • Page 212 6. Remove the rear panel: Remove the two screws securing the rear panel to the main chassis. Lift up the rear panel away. 7. Reinstallation: Reverse steps 3 through 6 to reinstall the rear panel modules. 6- 66 RSA3303A & RSA3308A Service Manual...
  • Page 213 Removal and Installation Procedures Figure 6- 32: Rear panel modules 6- 67 RSA3303A & RSA3308A Service Manual...
  • Page 214 Removal and Installation Procedures 6- 68 RSA3303A & RSA3308A Service Manual...
  • Page 215 If a fault is detected, first check that the power unit is operating properly according to “Troubleshooting Procedure 1 — Power supply modules”. Then, locate the faulty board according to the troubleshooting tree for each fault or the symptom/cause table. 6- 69 RSA3303A & RSA3308A Service Manual...
  • Page 216 (see Table 6- - 7 and Figure 6- - 40). the fan on Replace the fan. the CPU board the voltages working? The power supply is OK. Figure 6- 33: Troubleshooting procedure 1 — Power supply system 6- 70 RSA3303A & RSA3308A Service Manual...
  • Page 217 A40 DIFP board A40 Memory board , or S/N B020000 and above. A50 Mother board S/N below B020000 and J300100 and above. Figure 6- 34: Troubleshooting procedure 2 — Display and CPU system 6- 71 RSA3303A & RSA3308A Service Manual...
  • Page 218 Replace RF5 module. Replace Step attenuator 2, Band relay, or S/N B020000 and above. A100 Interconnection board. S/N below B020000 and J300100 and above. Figure 6- 35: Troubleshooting procedure 3 — Signal path 6- 72 RSA3303A & RSA3308A Service Manual...
  • Page 219 Amplitude: +5 dBm ±3 dB Replace A10 A/D board. Replace RF5 module. S/N B020000 and above. S/N below B020000 and J300100 and above. Figure 6- 35: Troubleshooting procedure 3 — Signal path (Cont.) 6- 73 RSA3303A & RSA3308A Service Manual...
  • Page 220 Reconfiguration of RF Modules on set correctly? page 5- - 31. Replace RF5 module. Replace Restart the analyzer. RF2 module or RF4 module. Figure 6- 35: Troubleshooting procedure 3 — Signal path (Cont.) 6- 74 RSA3303A & RSA3308A Service Manual...
  • Page 221 Replace RF4 module. Replace Replace A100 Interconnection board. Replace the step attenuator 1. Step attenuator 1 or A100 Interconnection board. Figure 6- 35: Troubleshooting procedure 3 — Signal path (Cont.) 6- 75 RSA3303A & RSA3308A Service Manual...
  • Page 222 RF Modules on page 5- - 31. Replace Restart the analyzer. Programmable band-pass filter or S/N B020000 and above. A100 Interconnection board. S/N below B020000 and J300100 and above. Figure 6- 35: Troubleshooting procedure 3 — Signal path (Cont.) 6- 76 RSA3303A & RSA3308A Service Manual...
  • Page 223 To prog. BPF W106 W201 Front connection J700 J810 J710 LCD inverter Power switch J140 J120 J130 Front key J100 Preamplifier power Figure 6- 36: Top view for cable interconnection (S/N B020000 and above) 6- 77 RSA3303A & RSA3308A Service Manual...
  • Page 224 W201 Front connection J700 J810 J710 LCD inverter Power switch J140 J120 J130 Front key J100 Preamplifier power Figure 6- 37: Top view for cable interconnection (S/N below B020000 and J300100 and above) 6- 78 RSA3303A & RSA3308A Service Manual...
  • Page 225 To RF3 W117 W119 J110 J230 J302 J300 J120 J130 J280 W107 W116 Step attenuator 1 Input W114 (A110) relay To RF4 W101 RF input Figure 6- 38: Bottom view for cable interconnection (RSA3303A) 6- 79 RSA3303A & RSA3308A Service Manual...
  • Page 226 J110 J230 J130 J280 W123 (YTF) To RF3 Step attenuator 2 Input W119 W114 W105 (A120) relay W101 To RF4 RF input Figure 6- 39: Bottom view for cable interconnection (RSA3308A) 6- 80 RSA3303A & RSA3308A Service Manual...
  • Page 227 +3.3 V +3.14 V +3.46 V +3.3 V +3.14 V +3.46 V Power supply 3 +5 V +4.75 V +5.25 V +5 V +4.75 V +5.25 V +15 V +14.25 V +15.75 V 6- 81 RSA3303A & RSA3308A Service Manual...
  • Page 228 +6.6 V +6.27 V +6.93 V Symptoms and Faulty Modules Fault symptoms can help you identify faulty boards or modules. Fault symptoms and suspected boards or modules are listed in Table 6- -8. 6- 82 RSA3303A & RSA3308A Service Manual...
  • Page 229 RF1 band does not work. RF2 or RF3 module RF2 or RF3 module RF2 or 3 band does not work. RF3 module, RF3 module, Programmable BPF, or Programmable BPF, or A100 Interconnection board A100 Interconnection board 6- 83 RSA3303A & RSA3308A Service Manual...
  • Page 230 A100 Interconnection Board H You must calibrate RF gain for RF1 band. Hard Disk Drive H Full calibration is necessary because the cal factors are lost. H Attach a new Windows license label. 6- 84 RSA3303A & RSA3308A Service Manual...
  • Page 231 Options...
  • Page 233 Options and Accessories The options and accessories list for this instrument is available in the RSA3303A and RSA3308A User Manual (071-1409-xx) that shipped with your product. Refer to the Options and Accessories section in Appendices of your user manual. 7- 1...
  • Page 234 Options and Accessories 7- 2 RSA3303A & RSA3308A Service Manual...
  • Page 235 Electrical Parts List...
  • Page 237 The modules that make up this instrument are often a combination of mechanical and electrical subparts. Therefore, all replaceable modules are listed in Sec- tion 10, Mechanical Parts List. Refer to that section for part numbers when using this manual. 8- - 1 RSA3303A & RSA3308A Service Manual...
  • Page 238 Electrical Parts List 8- - 2 RSA3303A & RSA3308A Service Manual...
  • Page 239 Diagrams...
  • Page 241 Diagrams This section contains the following diagrams: H Block diagram: Shows the modules and functional blocks. H Interconnect diagrams: Show how the modules connect together. 9- 1 RSA3303A & RSA3308A Service Manual...
  • Page 242 Diagrams 9- 2 RSA3303A & RSA3308A Service Manual...
  • Page 243 8.4” LCD Principal power board Front panel key 256 MB memory AC power board switch board GPIB controller ON/STANDBY USB X2 switch 3.5” FDD Figure 9- 1: Block diagram (S/N B020000 and above) 9- 3 RSA3303A & RSA3308A Service Manual...
  • Page 244 Front panel key 256 MB memory AC power board switch board GPIB controller ON/STANDBY USB X2 switch 3.5” FDD Figure 9- 2: Block diagram ( S/N below B020000 and J300100 and above) 9- 4 RSA3303A & RSA3308A Service Manual...
  • Page 245 J100 J102 J112 DC-DC Voltage Floppy disk Rotary Power switch converter regulator encoder drive board Preamplifier Hard disk Fans power drive GPIB Figure 9- 3: Interconnect diagram (RSA3303A, S/N B020000 and above) 9- 5 RSA3303A & RSA3308A Service Manual...
  • Page 246 J112 DC-DC Voltage Floppy disk Rotary Power switch converter regulator encoder drive board Preamplifier Hard disk Fans power drive GPIB Figure 9- 4: Interconnect diagram (RSA3303A, S/N below B020000 and J300100 and above) 9- 6 RSA3303A & RSA3308A Service Manual...
  • Page 247 J100 J102 J112 DC-DC Voltage Floppy disk Rotary Power switch converter regulator encoder drive board Preamplifier Hard disk Fans power drive GPIB Figure 9- 5: Interconnect diagram (RSA3308A, S/N B020000 and above) 9- 7 RSA3303A & RSA3308A Service Manual...
  • Page 248 J112 DC-DC Voltage Floppy disk Rotary Power switch converter regulator encoder drive board Preamplifier Hard disk Fans power drive GPIB Figure 9- 6: Interconnect diagram (RSA3308A, S/N below B020000 and J300100 and above) 9- 8 RSA3303A & RSA3308A Service Manual...
  • Page 249 Mechanical Parts List...
  • Page 251 Replaceable Parts This section contains a list of the replaceable modules for the RSA3303A and RSA3308A Real-Time Spectrum Analyzers. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative.
  • Page 252 670-7918-03 670-7918-XX When you order parts, Tektronix will provide you with the most current part for your product type, serial number, and modification (if applicable). At the time of your order, Tektronix will determine the part number revision level needed for your product, based on the information you provide.
  • Page 253 Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow. Tektronix part number Use this part number when ordering replacement parts from Tektronix. 3 and 4 Serial number Column three indicates the serial number at which the part was first effective. Column four indicates the serial number at which the part was discontinued.
  • Page 254 367- - 0247- - XX HANDLE,CARRYING:11.54L,PLASTIC - - 12 200- - 2191- - XX CAP,RETAINER:PLASTIC - - 13 348- - 1110- - XX FOOT,CABINET:FRONT - - 14 161- - 0230- - XX CABLE ASSY,PWR(STANDARD ACCESSORY) 10- 4 RSA3303A & RSA3308A Service Manual...
  • Page 255 Replaceable Parts Figure 10- 1: External modules 10- 5 RSA3303A & RSA3308A Service Manual...
  • Page 256 335- - 1072- - XX MARKER,IDENT:MKD RSA3303A,POLYCARBONATE 335- - 1073- - XX MARKER,IDENT:MKD RSA3308A,POLYCARBONATE - - 19 174- - B982- - XX CA ASSY,SP,ELEC:16,26AWG,15CM,RIBBON,W/HLDR - - 20 174- - B981- - XX CA ASSY,SP,ELEC:5,26AWG,27CM,RIBBON,W/HLDR 10- 6 RSA3303A & RSA3308A Service Manual...
  • Page 257 Replaceable Parts Included in #11 Figure 10- 2: Front-panel assembly - 1 10- 7 RSA3303A & RSA3308A Service Manual...
  • Page 258 386- - A857- - XX PLATE:N- - CONNECTOR - - 15 348- - A116- - XX SHLD GSKT ELEC:CONDUCTIVE URETHANE FOAM,1MM X 3MM,W/ADHESIVE - - 16 211- - 0751- - XX SCREW,MACHINE:M3X8MM L,PNH,STL,ZN- - C,CROSS REC,W/FLAT&LOCK WASHERS 10- 8 RSA3303A & RSA3308A Service Manual...
  • Page 259 Replaceable Parts Figure 10- 3: Front-panel assembly - 2 10- 9 RSA3303A & RSA3308A Service Manual...
  • Page 260 119- - B172- - XX MODULE,RF:DOWNCONVERTER,RF4,SYNTHESIZER,WCA280A&WCA230A - - 4 119- - B170- - XX MODULE,RF:DOWNCONVERTER,1ST,RSA280,RF3(RSA3308A) 119- - B171- - XX MODULE,RF:DOWNCONVERTER,1ST,RSA230,RF3(RSA3303A) - - 5 119- - B164- - XX MODULE,RF:DOWNCONVERTER,2ND&3RD,RF2(RSA3308A) 119- - B165- - XX MODULE,RF:DOWNCONVERTER,2ND&3RD,RF2(RSA3303A) 10- 10 RSA3303A & RSA3308A Service Manual...
  • Page 261 Replaceable Parts Figure 10- 4: RF modules 10- 11 RSA3303A & RSA3308A Service Manual...
  • Page 262 S/N below B020000 and J300100 and above. For S/N B020000 and above, use the revision level 80 (P/N 671-B257-80) or later. For S/N below B020000 and J300100 and above, any revision level can be used. 10- 12 RSA3303A & RSA3308A Service Manual...
  • Page 263 Replaceable Parts S/N B020000 and above S/N below B020000 and J300100 and above Included in #3. Figure 10- 5: Mother board and its daughter boards - 1 10- 13 RSA3303A & RSA3308A Service Manual...
  • Page 264 SCREW,MACHINE:M3X6MM L,PNH,STL,MFZN- - C,CROSS REC W/FLAT&LOCK WASHER - - 12 407- - A690- - XX BRACKET:STOPPER,PC BOARD - - 13 119- - 6925- - XX CKT BD ASSY:CPU BD ASSY1196924XX + MEMORY119B117XX + A63 BD(6715800XX) + MECHA PARTS 10- 14 RSA3303A & RSA3308A Service Manual...
  • Page 265 Replaceable Parts See Figure 10- - 7 for details. Figure 10- 6: Mother board and its daughter boards - 2 10- 15 RSA3303A & RSA3308A Service Manual...
  • Page 266 10- - 7 - - 1 119- - 6946- - XX HDD UNIT:2.5”,IDE I/F,O/S AND F/W INSTALLED(RSA3303A) 119- - 6947- - XX HDD UNIT:2.5”,IDE I/F,O/S AND F/W INSTALLED(RSA3308A) - - 2 348- - A144- - XX DUMPER - - 3...
  • Page 267 Replaceable Parts Figure 10- 7: Disk modules 10- 17 RSA3303A & RSA3308A Service Manual...
  • Page 268 CA ASSY,SP,ELEC:2,18AWG,13CM L,W/FASTON TO HLDR 3P,W/TUBE - - 24 174- - C005- - XX CA ASSY,SP,ELEC:2,18AWG,15CM L,W/HOLDER,HLDR 5P TO 3P - - 25 174- - C006- - XX CA ASSY,SP,ELEC:2,18AWG,9CM L,W/HOLDER,HLDR 5P TO 3P 10- 18 RSA3303A & RSA3308A Service Manual...
  • Page 269 Replaceable Parts Figure 10- 8: Bottom modules - Power supply 10- 19 RSA3303A & RSA3308A Service Manual...
  • Page 270 119- - B180- - XX MODULE,RF:DOWN CONVERTER,STEP ATT,WCA230 - - 11 348- - 0949- - XX GROMMET,PLASTIC:NYLON,BLACK,RING,15MM ID - - 12 174- - B952- - XX CA ASSY,RF:50OHM,SEMI- - RIGID,W109,STEP ATT TO A310 10- 20 RSA3303A & RSA3308A Service Manual...
  • Page 271 Replaceable Parts See Figure 10- - 11 for details. A120 A110 Figure 10- 9: Bottom modules - RF1 (RSA3303A) 10- 21 RSA3303A & RSA3308A Service Manual...
  • Page 272 348- - 0949- - XX GROMMET,PLASTIC:NYLON,BLACK,RING,15MM ID - - 22 174- - B949- - XX CA ASSY,RF:50OHM,SEMI- - RIGID,W106,FINE ATT TO SW - - 23 174- - B948- - XX CA ASSY,RF:50OHM,SEMI- - RIGID,W105,YTF TO A310 10- 22 RSA3303A & RSA3308A Service Manual...
  • Page 273 Replaceable Parts A150 See Figure 10- - 11 for details. A120 Figure 10- 10: Bottom modules - RF1 (RSA3308A) 10- 23 RSA3303A & RSA3308A Service Manual...
  • Page 274 671- - B254- - XX CIRCUIT BD ASSY:A100 INTER CONNECTION,389- - B189- - XX WIRED(RSA3303A) 671- - B187- - XX CIRCUIT BD ASSY:A100 INTER CONNECTION,389- - B189- - XX WIRED(RSA3308A) - - 4 174- - C009- - XX CA ASSY,SP,ELEC:5,26AWG,35CM L,RIBBON,W/HLDR...
  • Page 275 Replaceable Parts A100 See Figure 10- - 10 for details. (RSA3308A only) Figure 10- 11: Bottom modules - Interconnection 10- 25 RSA3303A & RSA3308A Service Manual...
  • Page 276 SCREW,MACHINE:M4X8MM L,PNH,STL,ZN- - C PL,CROSS REC W/FLAT&LOCK WASHER - - 19 441- - A293- - XX CHASSIS,MAIN:WCA230A/280A - - 20 211- - 1028- - XX SCREW,MACHINE:M4X8MM L,PNH,STL,ZN- - C PL,CROSS REC W/FLAT&LOCK WASHER 10- 26 RSA3303A & RSA3308A Service Manual...
  • Page 277 Replaceable Parts W40, W41 W42, W43 W44, W45 Figure 10- 12: Chassis modules - 1 10- 27 RSA3303A & RSA3308A Service Manual...
  • Page 278 - - 11 348- - A158- - XX SHLD GSKT ELEC:CONDUCTIVE URETHANE FOAM,1X4 W/ADHESIVE - - 12 348- - A143- - XX 5 CM GASKET,SHIELD:FINGER TYPE,15.2MM W X 5.6MM H X 7.2MM L 10- 28 RSA3303A & RSA3308A Service Manual...
  • Page 279 Replaceable Parts Figure 10- 13: Chassis modules - 2 10- 29 RSA3303A & RSA3308A Service Manual...
  • Page 280 - - - - - - - - - - - - - - - - SCREW 10- - 32X0.354INCH,TRUSS (Included in the slide assembly (Figure index 10- - 14- - 7)) - - 13 335- - 0391- - XX MARKER,IDENT;SAFETY LABEL 10- 30 RSA3303A & RSA3308A Service Manual...
  • Page 281 Replaceable Parts Figure 10- 14: Rackmount 10- 31 RSA3303A & RSA3308A Service Manual...
  • Page 282 071- - 1412- - XX MANUAL,TECH:SERVICE,ENGLISH VERSION(RSA3303A/RSA3308A) 063- - 3680- - XX SOFTWARE PKG:3.5FD,AWG520 SETUP DISK,FOR WCA200 SERVICE 020- - 2520- - XX COMPONENT KIT:SERVICE MANUAL AND AWG520 SETUP DISK(063- - 3680- - 00) 10- 32 RSA3303A & RSA3308A Service Manual...

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