Rohde & Schwarz CMU200 Service Manual
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Rohde & Schwarz CMU200 Service Manual

Universal radio communication tester
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Service Manual Instrument
Universal Radio Communication
Tester
CMU200/CMU300
1100.0008.02/1100.0008.03
Printed in the Federal
Republic of Germany
1100.4903.82-04-
Test and Measurement
Division
1

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Summary of Contents for Rohde & Schwarz CMU200

  • Page 1 Test and Measurement Division Service Manual Instrument Universal Radio Communication Tester CMU200/CMU300 1100.0008.02/1100.0008.03 Printed in the Federal Republic of Germany 1100.4903.82-04-...
  • Page 3 Tabbed Divider Overview Tabbed Divider Overview Spare Parts Express Service List of R&S Representatives Safety Instructions Contents Contents of Manuals for Universal Radio Communication Tester CMU Tabbed Divider Chapter 1: Performance Test Chapter 2: Adjustment Chapter 3: Repair Chapter 4: Software Update / Installation of Options Chapter 5: Documents...
  • Page 5 Spare Parts Express Service Phone: +49 89 4129 - 2465 Fax: +49 89 41 29 - 3306 E-mail: werner.breidling@RSD.rsd.de In case of urgent spare parts requirements for this Rohde & Schwarz unit, please contact our spare parts express service. Outside business hours, please leave us a message or send a fax or e-mail.

  • Page 7: Table Of Contents

    Contents Contents 1 Performance Test ....................1.1 General.............................. 1.1 Calibration by an R&S Representative with an ACS Calibration System ..1.1 Sending the Instrument to the Factory (Memmingen, Germany) ..... 1.1 Necessary Documents ......................1.1 Measuring Instruments and Auxiliary Equipment ................ 1.2 Test Setups ..........................
  • Page 8 RX Dynamic/ Average Noise Level..................1.15 Options for CMU200......................1.16 TX GSM Modulation ....................1.16 RX GSM Dem odulation ..................1.16 Function Test with Mobile Stations (CMU200) ..............1.17 GSM mobile test......................1.17 CDMA mobile test ....................... 1.17 IS136-mobile test ......................1.17 AMPS-mobile test......................1.17 Test Report .............................
  • Page 9 Contents Option OCXO REFERENCE OSC. CMU-B11 or B12 ............. 3.9 RF FRONTEND........................3.9 RXTX BOARD1 ........................3.10 DIGITAL BOARD........................3.12 Option UNIVERSAL SIGNALLING UNIT CMU-B21.............. 3.13 Option AUDIO-GEN. + ANA. CMU-B41 ................3.15 Option CDMA (IS95) Signalling Unit CMU-B81 ..............3.16 MODULE Replacement ........................
  • Page 10 Contents Opening the instrument and removing the FRONT MODULE ....... 3.35 Replacing the option ..................3.36 Completing the instrument and putting into operation ........3.36 Replacing the RF FRONTEND....................3.37 Opening the instrument and removing the RF FRONTEND ......3.37 Installing the new RF FRONTEND MODULE and completing the instrument3.37 Automatic module data adjustment ..............
  • Page 11 Tables Replacing the MOTHERBOARD ................... 3.51 MOTHERBOARD1 (big MOTHERBOARD) ..............3.51 Opening the instrument and removing MOTHERBOARD1......3.51 Installing the new MOTHERBOARD1 and completing the instrument ... 3.51 MOTHERBOARD2 (small MOTHERBOARD)............. 3.52 Opening the instrument and removing MOTHERBOARD2......3.52 Installing the new MOTHERBOARD2 and completing the instrument ... 3.52 FRONTPANEL BOARD (at the front of the instrument frame) ........
  • Page 12 Tables Tables Table 1-1 Measuring instruments and auxiliary equipment for manual performance test ..... 1.2 Table 1-2 Test report ........................... 1.18 Table 2-1 Measuring instruments and auxiliary equipment for manual adjustment of the CMU ... 2.1 Table 5-1 List of power cables available....................5.2 1100.4903.82...
  • Page 13 Manuals Contents of Manuals for Universal Radio Communi- cation Tester CMU200/CMU300 Service Manual Instrument This service manual for Universal Radio Communication Tester CMU provides information on checking the generator for compliance with rated specifications, as well as on adjustment, repair and troubleshooting.
  • Page 14 The operating manuals listed in the following table describe the test of mobile phones supporting different standards by means of the CMU200/CMU300 and the appropriate software and hardware options. Except for hardware-specific chapters that are not relevant to the software options, the net- work test operating manuals are organized like the CMU operating manual.

  • Page 15: Performance Test

    Minimum measurement uncertainties • Calibration and readjustment Necessary Documents • Operating manual CMU200/CMU300 • Data sheet CMU200 Note: It is recommended to read the following journal on the subjects "measurement uncertainty" and "tolerance analysis": ETSI Technical Report ETR 028, June 1997 1100.4903.82...

  • Page 16: Measuring Instruments And Auxiliary Equipment

    Measuring Instruments and Auxiliary Equipment Measuring Instruments and Auxiliary Equipment Table 1-1 Measuring instruments and auxiliary equipment for manual performance test Item Type of instrument Required characteristics Appropriate device R & S order number Signal generator 100 kHz to 2.7 GHz, SME03 1038.6002.03 RX measurements...

  • Page 17: Test Setups

    Measuring Instruments and Auxiliary Equipment Test Setups The quality of the test setup has an effect on the measurement procedures. Note: Make sure to use only high-quality coax cables and coax connectors as well as calibrated measuring equipment. Reference Frequencies Test setup REF1: REF1 Spectrum...

  • Page 18: General Tx Measurements

    Measuring Instruments and Auxiliary Equipment -33 dBm/ -16 dBm NRVD NRV-Z4 RF1 / (CMU) -93 dBm to -33 dBm/ -76 dBm to -16 dBm/ -55 dBm to +5 dBm FSIQ or FSE (CMU) RF1 / RF2 / RF3 OUT 10 MHz Reference Freq. -130 dBm to -93 dBm/ RF-PreAmp -117 dBm to -76 dBm/...

  • Page 19: General Rx Measurements

    Measuring Instruments and Auxiliary Equipment NRV- NRVD Power Power Splitter Ampl. depending on max. level of power splitter (CMU) NRV- NRVD -30 dB Power direct. coupl Ampl. (CMU) General RX Measurements Test setup RX3: RF1,RF2,RF4IN (CMU) 10 MHz Reference Freq. RX Demodulation Measurements Test setup RX4: Demodulator...

  • Page 20: Tolerance Analysis

    Tolerance Analysis Tolerance Analysis Due to the small measurement uncertainty of the CMU, the measuring equipment must meet stringent requirements. Since the measurement uncertainty of the measuring equipment to be achieved depends on the test setup used, it is recommended to perform a tolerance analysis. To be able to trace back errors in the measurement, the measurement uncertainty should also be indicated in the test report.

  • Page 21: Manual Test Procedure

    Manual Test Procedure Manual Test Procedure Some additional measurements can only be performed using a mobile phone via the normal operating menus of the CMU. These measurements are described in the section ’Function Test with Mobile Stations'. The suggested frequencies and levels at which the measurements should be performed have been selected according to the instrument concept.

  • Page 22: Interface Test

    Manual Test Procedure Interface Test IEC-bus Interface ½ Connect the IEC-bus interfaces of the CMU and the controller via IEC-bus Preparation: cables. ½ Send the string ‘*IDN?<CR><NL>’ from the controller to the CMU and read the Test: reply STRING of the CMU. The reply STRING must contain the following message: ‘ROHDE &...

  • Page 23: Ref Out 1

    Manual Test Procedure ½ Feed in at REF IN: 1 MHz sinewave, 0.5 V(rms). Preparation: ½ Connect frequency counter to RF3 OUT. ½ Set CMU to external reference 1 MHz, RF 1 GHz. Control: ½ Use frequency counter to measure frequency deviation from 1 GHz. Test: ½...

  • Page 24: Tx Frequency Accuracy

    Manual Test Procedure TX Frequency Accuracy Preparation: Test setup TX5, but CMU not synchronized with frequency counter/analyzer and no external trigger. CMU connector RF3 OUT. ½ Set CMU to desired frequency, level 0 dBm. Control: ½ Determine frequency deviation from nominal frequency. Test: TX Frequency Settling Time Preparation:...

  • Page 25: Tx Level Settling Time

    Manual Test Procedure TX Level Settling Time Test setup TX5, in addition trigger cable from CMU (D-sub connector AUX3, pin2) Preparation: to analyzer. CMU: Connector RF3 OUT 1GHz, Ramping On, Hopping Off. Sweep time = 40 µs, Center = 1 GHz , Span = 0, RBW = 10 Analyzer: MHz, external trigger.

  • Page 26: Tx Fixed Spurious Signals

    Manual Test Procedure TX Fixed Spurious Signals Fixed spurious signals are checked. Preparation: Test setup TX5, no external trigger. Analyzer: Center = specified test frequency, RBW = 100 kHz, Span = 1 MHz. ½ Set CMU to connector RF3 OUT, specified setting frequency, specified level. Control: Test: The suppression of the signal is measured at the test frequency relative to the set...

  • Page 27: Tx Carrier/Sideband Suppression, Max. Distortion

    Manual Test Procedure TX Carrier/Sideband Suppression, Max. Distortion The modulation quality of the analog IQ modulator of the CMU is measured. Preparation Test setup TX5, no external trigger. ½ Connect spectrum analyzer to RF3 OUT. ½ Set CMU generator to specified RF frequency. Control: Output level at RF3 OUT, 0 dBm, ½...

  • Page 28: Rx Spurious Response / Image Rejection

    Manual Test Procedure ½ The suppression of the signal at twice and three times the input frequency is Test: measured relative to the input signal. Test setup RX3 Preparation: Generator = f ; level = –2 dBm ½ Set CMU to connector RF4 IN, Max Level = 0 dBm. Control: ½...

  • Page 29: Rx Residual Fm/Am

    Manual Test Procedure RX Residual FM/AM Preparation: Test setup RX4, Generator = f ; level = –20 dBm. iCMU ½ Set CMU to connector RF4 IN, Max Level = –20 dBm and to desired Control: frequency. ½ Switch on frequency-selective power meter. Test: The measurement is taken with an external FM/AM demodulation instrument (FSE with FSE-B7) via the IF3RXCH1 BNC connector at the rear panel of the CMU.

  • Page 30: Options For Cmu200

    Manual Test Procedure Options for CMU200 The following tests can be carried out only if the GSM-MS (CMU-K2x) software options are installed and enabled by entering a key code. TX GSM Modulation Only with options CMU-K21, CMU-K22, CMU-K23 or CMU-K24: The GSM phase/frequency error of a TX path is measured.

  • Page 31: Function Test With Mobile Stations (Cmu200)

    Manual Test Procedure Function Test with Mobile Stations (CMU200) GSM mobile test Only with Option CMU-K21, CMU-K22, CMU- K23 or CMU-K24. Location Update Call to MS Call Release Call from MS Echo test Power ramp, Phase/Frequency error measurement Handover GSM900/1800 CDMA mobile test Only with Option CMU-K81, CMU-K82.

  • Page 32: Test Report

    Test Report Test Report ROHDE & SCHWARZ Universal Radiocommunication Tester CMU 1100.0008 Serial number: Test person: Date: Signature: Table 1-2 Test report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section Ambient temperature during calibration °C General Tests CONTINUOUS SELFTEST Passed passed...
  • Page 33 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section REF OUT 2 13 MHz or 10 MHz REF OUT 2 1 V(pp) REF OUT 2 13 MHz or 10 MHz –1 TX Frequency Accuracy TX Frequency accuracy 2200 MHz –2200 +2200 Frequency...
  • Page 34 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section TX Level Settling Time µs TX Level settling time TX level at P = +10 dBm to ∆P = 0.5 dB settling time µs TX Level settling time at P = –20 dBm to ∆P = 0.5 dB µs TX Level settling time...
  • Page 35 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section TX In-band spurious –40 CMU setting = 468.1 MHz search freq. ± 5.500 kHz from carrier TX In-band spurious –40 CMU setting = 489.3 MHz search freq. ± 5.500 kHz from carrier TX In-band spurious –40 CMU setting = 496.5 MHz...
  • Page 36 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section TX fixed spurious, –40 CMU setting = 37.4333 MHz search freq. 36.9333 MHz Level = –20 dBm TX fixed spurious, –40 CMU setting = 42.05 MHz search freq.
  • Page 37 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section TX fixed spurious, –40 CMU setting = 100 MHz search freq. 1817.12 MHz Level = +10 dBm TX fixed spurious, –40 CMU setting = 100 MHz search freq.
  • Page 38 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section TX fixed spurious, –40 CMU setting = 1800 MHz search freq. 842.08 MHz Level = +10 dBm TX fixed spurious, –40 CMU setting = 1800 MHz search freq.
  • Page 39 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section TX SSB phase noise –110 f = 100 MHz, ∆f = 400 kHz TX SSB phase noise –110 f = 100 MHz, ∆f = 1990 kHz TX SSB phase noise –100 f = 945 MHz, ∆f = 20 kHz...
  • Page 40 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section TX Residual AM at 1500 MHz 0.02 CCITT, rms TX Residual AM at 2200 MHz 0.02 CCITT, rms TX Modulation characteristics TX Modulation characteristics –40 carrier suppression, f = 10 kHz, f = 1000 MHz TX Modulation characteristics...
  • Page 41 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section RX 2nd harmonic at RF4 IN , f = 625 –20 MHz, CMU frequency = 1250 MHz RX 2nd harmonic at RF4 IN , f = 1100 –20 MHz, CMU frequency = 2200 MHz RX 3rd harmonic at RF4 IN , f...
  • Page 42 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section RX inherent spurious response at RF2, –50 = 2200 MHz, CMU frequency = 191.9425 MHz RX inherent spurious response at RF2, –50 = 1226.97 MHz, CMU frequency = 2200 MHz RX inherent spurious response at RF2, –50...
  • Page 43 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section RX inherent spurious response at RF2, –50 = 1295.39 MHz, CMU frequency = 2200 MHz RX inherent spurious response at RF2, –50 = 1210.843333 MHz, CMU frequency = 1210.743333 MHz RX inherent spurious response at RF2, –50...
  • Page 44 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section RX inherent spurious response at RF4 –50 IN, f = 1210.843333 MHz, CMU frequency = 1210.743333 MHz RX inherent spurious response at RF4 –50 IN, f = 1262.31375 MHz, CMU frequency = 1260 MHz RX SSB Phase Noise...
  • Page 45 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section RX Residual FM at 500 MHz at RF4 IN, –20 dBm CCITT, rms RX Residual AM at 500 MHz at RF4 0.02 IN, –20 dBm CCITT, rms RX Residual FM at 900 MHz at RF4 IN, –20 dBm 30Hz to 15 kHz, rms...
  • Page 46 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section RX Average Noise Level RX average noise level RX average –100 RF1, RBW = 1 kHz, noise level expPow = 47 dBm, f = 10 MHz RX average noise level –100 RF1, RBW = 1 kHz,...
  • Page 47 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section RX average noise level –68 RF2, RBW = 500 kHz, expPow = 33 dBm, f = 2700 MHz RX average noise level –73 RF2, RBW = 500 kHz, expPow = –4 dBm, f = 10 MHz RX average noise level –73...
  • Page 48 Test Report Item Measure- Measurement ment to uncertainty Description Min. Actual Max. Unit section RX average noise level –95 RF4 IN, RBW = 1 kHz, expPow = –22 dBm, f = 2700 MHz TX Generator level error at RF1 (measurement on frequency cal. points) Frequency 10, 100, 200, 300, 400, 500, 600, 700, 800, 1000, 820, 840, 860, 880, 900, 920, 940, 960, 1710, 1730,...
  • Page 49 Test Report RX Power meter (frequency selective) level error at RF2 (measurement on frequency cal. points) Frequency 50, 100, 200, 300, 400, 500, 600, 700, 800, 1000, 450, 470, 490, 820, 840, 860, 880, 900, 920, 940, 960, in MHz 1100, 1200, 1300, 1400, 1500, 1600, 1700, , 2000, 1720, 1740, 1760, 1780, 1800, 1820, 1840, 1860, 1880, 2100, 2200, 2300, 2400, 2500, 2600, 2700...
  • Page 50 Test Report Options for CMU200: CMU-K20, K21, K22, K23, K24, TX Generator GSM Modulation Output RF3 OUT, level 10 dBm, GSM Non Signaling Training Sequence GSM0, Bit Modulation PRBS, Transmission Burst TX GSM phase error –4 ° at 460 MHz, peak...
  • Page 51 894 MHz, rms TX GSM frequency error –15 at 894 MHz Options for CMU200: CMU-K20, K21, K22, K23, K24, RX Analyzer GSM Demodulation Input RF2, GSM Non Signaling Training Sequence GSM0, Trigger Source IF Power, Trigger Level Medium GSM phase error RX –2...
  • Page 52 Test Report RX GSM frequency error –10 at 1785 MHz, level –14 dBm RX GSM phase error –2 ° at 1850 MHz, peak, level +5 dBm Demodulation RX GSM phase error –0.6 +0.6 ° at 1850 MHz, rms, level +5 dBm RX GSM frequency error –10 at 1850 MHz, level +5 dBm...

  • Page 53: Adjustment

    Manual Adjustment Adjustment The following chapter describes the manual adjustment of the reference sources as well as the software-controlled adjustment of individual module data following module replacement (automatic adjustment of module data). The manual adjustment of the +5 VDC reference source which provides the highly stable DC reference voltage for the individual CMU modules as well as that of the 10 MHz reference frequency source which determines the frequency accuracy of the CMU are described.

  • Page 54: Preparing The Instrument

    Manual Adjustment Preparing the Instrument ½ Remove the power plug on the CMU and place the CMU onto the Opening the casing: front handles. ½ Loosen the four Phillips screws at the four rear-panel feet and take off the feet. ½...

  • Page 55: Adjusting The 10 Mhz Reference Frequency

    Manual Adjustment Adjusting the 10 MHz Reference Frequency Preparation: The measurement can be performed either at connector REFOUT1 (rear of CMU) at 10 MHz or at connector RF3OUT (front) at 1 GHz using a frequency counter. ½ For the measurement at connector RF3OUT set the generator to 1 GHz and 13 dBm without modulation in the RF menu.

  • Page 56: Automatic Adjustment Of Module Data

    Automatic Adjustment of Module Data Automatic Adjustment of Module Data In order to match the data stored in EEPROMs on the respective modules to the complete instrument, an automatic adjustment of module data is always necessary after replacing a module. In addition to some standard information such as module name, serial number, hardware status and date of manufacture, these stored data items contain important pieces of information within value tables from module pre-testing, e.g.

  • Page 57: Repair

    Instrument Design and Function Description Repair This chapter describes the design of the CMU, simple measures for repair and troubleshooting and, in particular, the replacement of modules. For troubleshooting and diagnosis, a maintenance menu is available, which permits to poll diagnostic voltages of the modules and indicate limit violations. The installation of options and software update are explained in chapter 4 of this service manual.

  • Page 58: Block Diagram

    Instrument Design and Function Description Block diagram MAINS POWER SUPPLY INTERFACES Option Sandwich Modul UNIV. SIGN. UNIT 1 MICRO SPEECH PROC. CMU-B21 CODEC O C X O MODULE 3 MODULE 1 R E F E R E N C E CMU-B52 FPGA 1 O S C .

  • Page 59: Instrument Frame

    Instrument Design and Function Description Instrument Frame The instrument frame consists of front frame, module support, partition, cage and air duct. The module support is screwed to the front frame. It incorporates the partition, the cage and the air duct and provides all mechanical connectors and slots for modules.

  • Page 60: Cooling The Instrument

    Instrument Design and Function Description Cooling the Instrument The right side panel contains a temperature-controlled axial fan (120 Axial fan in the casing mm x 120 mm x 38 mm), which sucks in cold ambient air at the right tube of the casing and blows it through the modules via a ventilation duct and further ventilation slots.

  • Page 61: Front Module

    Instrument Design and Function Description FRONT MODULE The FRONT MODULE consists of an aluminum case panel and a mounting plate which accommodates the LCD, the keyboard mat with the membrane and the spinwheel. The case panel incorporates the FRONT MODULE CONTROLLER, the fan and the hard disk. The color LCD provides a visible output of any information, measurements etc.

  • Page 62: Power Supply

    Instrument Design and Function Description POWER SUPPLY The POWER SUPPLY of the CMU consists of a two-part aluminum casing with three boards arranged in a so-called sandwich technique (U-shape). In addition to cooling, the axial fan already mentioned above (see cooling of instrument) is also used to support the three boards. The control signal STANDBY/ON controlled by the FRONT MODULE STANDBY/ON signal CONTROLLER (depending on the operating key STANDBY/ON on the...

  • Page 63: Motherboard

    Instrument Design and Function Description Standby converter The third printed circuit board which serves as a connection between the first and second board accommodates the control and monitoring and control unit circuit parts. Besides, it includes the standby converter, which generates a +12-V standby voltage from the 380 VDC voltage of the PFC circuit.

  • Page 64: Reference Board

    Instrument Design and Function Description REARPANEL BOARD2 The REARPANEL BOARD2 is mounted to the right of the integrated and unscrewable rear panel plate and accommodates the interfaces SERVICE, AUX, AUX4 as well as further spare interfaces. For connection with MOTHERBOARD1 two 34-pin ribbon cables are used. REFERENCE BOARD The REFERENCE BOARD provides all required clock signals (NETCLK1/2) and reference frequencies (110.8 MHz) as well as the +5 VDC reference voltage for the CMU.

  • Page 65: Option Ocxo Reference Osc. Cmu-B11 Or B12

    Instrument Design and Function Description tuning range of 84 MHz to 168 MHz in locked phase relation. A fractional divider used in the feedback of the PLL provides the actual value for the phase detector. The output signal of the VCO is divided by two or four, buffered and provided at the MMCX connector NETCLK 1 or NETCLK 2 and serves as network-specific TTL clock for the DIGITAL BOARD.

  • Page 66: Rxtx Board1

    Instrument Design and Function Description perform all the RF measurements of the CMU. RF1 and RF2 are bidirectional inputs/outputs depending on the setting and measurement application. RF3OUT is a unidirectional output. RF4IN is a unidirectional input. For optical indication of the selected N-connectors and input and/or Optical indication output functions, yellow LEDs located above the N-connectors are switched on.
  • Page 67 Instrument Design and Function Description frequency by means of triple signal conversion (IF3, IF2, IF1). This is necessary to obtain a high image-frequency rejection. At the TX output, a switchable attenuator with fine stepping and large attenuation range is used to set the RF signal amplitude according to the level selected.

  • Page 68: Digital Board

    Instrument Design and Function Description deviations are stored as correction values in the flash PROM. The correction processor then sets the desired level settings, corrected by the correction values, in the flash PROM so that frequency, linearity and temperature responses of the modules are compensated for. This ensures the excellent level accuracy of the CMU which is essential for most measurements.

  • Page 69: Option Universal Signalling Unit Cmu-B21

    Instrument Design and Function Description BOARD1 directly via a MMCX connector (IF3RX1) and converts it into a 12-bit data stream by means of a fast AD converter. The sandwich DDC MODULE1 is directly plugged onto the DIGITAL DDC MODULE1 BOARD via three multipoint connectors and processes the digital data stream of the receiver.
  • Page 70 Instrument Design and Function Description Control and supply The control, bus lines and voltage supply of the UNIV. SIGN. UNIT MODULE are connected via two 96-pin VG multipoint connectors from MOTHERBOARD1. Further interfaces for testing and debugging are provided on the top of the module. Function As standard, the UNIV.

  • Page 71: Option Audio-Gen. + Ana. Cmu-B41

    Instrument Design and Function Description Option AUDIO-GEN. + ANA. CMU-B41 The Option AUDIO-GEN. + ANA. constitutes the central AF-board which contains all circuit parts for generation of AF output and analysis of AF input signals. The Option AUDIO-GEN. + ANA. is a plug-in module in HVC design.

  • Page 72: Option Cdma (Is95) Signalling Unit Cmu-B81

    Instrument Design and Function Description Option CDMA (IS95) Signalling Unit CMU-B81 The CDMA (IS95) Signalling Unit is a module of the CMU200 providing signalling and measuring support for the CDMA IS-95 cellular phone network. With the use of analog and digital hardware and firmware, this module uses the down converter and a signal generator in the CMU200 to establish a link with a CDMA mobile station.

  • Page 73: Module Replacement

    MODULE Replacement MODULE Replacement Caution! Disconnect the instrument from the mains before opening the casing. Please note the safety instructions at the beginning of this manual. When mounting the tube take care not to damage or pull off cables. Replacing the FRONT MODULE (see chapter 5, spare part list, Current No.

  • Page 74: Installing The New Front Module And Completing The Instrument

    MODULE Replacement Installing the new FRONT MODULE and completing the instrument ½ Install the old Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE in a new FRONT MODULE in the reverse order. ½ Install the new FRONT MODULE in the CMU in the reverse order. Caution: Make sure to route the cables of the Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE properly, not to catch them and plug them into the MOTHERBOARD before completely sliding the FRONT MODULE into the CMU.

  • Page 75: Replacing The Front Module Controller In The Front Module

    MODULE Replacement Replacing the FRONT MODULE CONTROLLER in the FRONT MODULE (see chapter 5, spare part list, Current No. 450/455 and explosion drawing 1090.9244.01 D sheet 2/3) The FRONT MODULE CONTROLLER is incorporated in the FRONT MODULE. For replacement proceed as follows: Opening the instrument and removing the FRONT MODULE ½...

  • Page 76: Removing The Front Module Controller From The Front Module3.20

    MODULE Replacement Removing the FRONT MODULE CONTROLLER from the FRONT MODULE ½ Unscrew the two countersunk screws on the cover of the Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE and carefully pull out the option from the FRONT MODULE towards the front. ½...

  • Page 77: Putting Into Operation

    MODULE Replacement Putting into operation ½ Connect the instrument to the mains. ½ Connect the external keyboard to the keyboard connector on the rear panel of the CMU. ½ Switch on the CMU. ½ During startup observe the display. ½ When three BEEPs can be heard, press the softkey to the left upper side of the LCD: C:\ will appear. ½...

  • Page 78: Replacing The Lithium Battery In The Front Module

    MODULE Replacement Replacing the Lithium Battery in the FRONT MODULE (see chapter 5, spare part list, Current No. 460 and explosion drawing 1090.9244.01 D sheet 2/3) The lithium battery is accommodated on the FRONT MODULE CONTROLLER board inside the FRONT MODULE.

  • Page 79: Removing The Lithium Battery

    MODULE Replacement Removing the lithium battery ½ Unscrew the two countersunk screws on the cover of the Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE and carefully pull out the option from the FRONT MODULE towards the front. ½ Place the FRONT MODULE onto a clean surface with the aluminum panel pointing downwards. ½...

  • Page 80: Installing The New Battery And Completing The Instrument

    MODULE Replacement Installing the new battery and completing the instrument ½ Shorten the length of the connecting wires of the new battery as with the old battery and replace with the correct polarity. Note: Do not short-circuit the battery! ½ If necessary, replace the mechanical lock (cable clamp). First solder the positive terminal to the PC board, then the negative terminal.

  • Page 81: Replacing The Hard Disk In The Front Module

    MODULE Replacement Replacing the Hard Disk in the FRONT MODULE (see chapter 5, spare part list, Current No. 490 and 495 and explosion drawing 1090.9244.01 D) The hard disk is incorporated in the FRONT MODULE (MODULE 04) or outside on the back of the aluminum panel of the FRONT MODULE (MODEL 12).

  • Page 82: Removing The Hard Disk From The Front Module

    MODULE Replacement Removing the hard disk from the FRONT MODULE MODEL 04: ½ Unscrew the two countersunk screws on the cover of the Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE and carefully pull out the option from the FRONT MODULE towards the front.

  • Page 83: Putting Into Operation

    MODULE Replacement MODEL 12: ½ Carefully fit the new hard disk, fasten with the four screws to the disk holder. Insert the hard disk with the disk holder on the back of the aluminum case of the FRONT MODULE. Be careful with the lower cover plate locking in the concerning opening.

  • Page 84: Replacing The Memory Modules In The Front Module

    MODULE Replacement Replacing the Memory Modules in the FRONT MODULE (see chapter 5, spare part list, Current No. 470 or 480 (MODEL 04) Current No. 475 or 485 (MODEL 12) and explosion drawing 1090.9244.01 D sheet 2/3) The memory modules are incorporated in the FRONT MODULE. The FRONT MODULE CONTROLLER features two SIMM-72 slots, in each of which up to 32 MB memory can be fitted (MODEL 04) or two SODIMM-144 slots, in each of which up to 64 MB memory can be fitted (MODEL 12).

  • Page 85: Making The Memory Modules Accessible

    MODULE Replacement Making the memory modules accessible ½ Unscrew the two countersunk screws on the cover of the Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE and carefully pull out the option from the FRONT MODULE towards the front. ½ Place the FRONT MODULE onto a clean surface with the aluminum panel pointing downwards. ½...

  • Page 86: Replacing The Lcd And/Or Dc/Ac Converter In The Front Module

    MODULE Replacement Replacing the LCD and/or DC/AC Converter in the FRONT MODULE (see chapter 5, spare part list, LCD: Current No. 360/365, DC/AC Converter: Current No. 410/415 and explosion drawing 1090.9244.01 D sheet 2/3) The LCD is accommodated on the mounting plate of the FRONT MODULE together with the associated DC/AC converter.

  • Page 87: Making The Lcd Accessible

    MODULE Replacement Making the LCD accessible ½ Unscrew the two countersunk screws on the cover of the Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE and carefully pull out the option from the FRONT MODULE towards the front. ½ Place the FRONT MODULE onto a clean surface with the aluminum panel pointing downwards. ½...

  • Page 88: Replacing The Keyboard Membrane And/Or Mat On The Front Module

    MODULE Replacement Replacing the Keyboard Membrane and/or Mat on the FRONT MODULE (see chapter 5, spare part list, Current No. 290 (Keyboard Mat) / 300 (Keyboard Membrane) and explosion drawing 1090.9244.01 D sheet 2/3) The keyboard membrane is the contact film for the rubber keys (mat) behind the labeling panel and the keyboard frame.

  • Page 89: Removing The Membrane

    MODULE Replacement Removing the membrane ½ Unscrew the two countersunk screws on the cover of the Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE and carefully pull out the option from the FRONT MODULE towards the front. ½ Place the FRONT MODULE onto a clean surface with the aluminum panel pointing downwards. ½...

  • Page 90: Replacing The Labeling Panel On The Front Module

    MODULE Replacement Replacing the Labeling Panel on the FRONT MODULE (see chapter 5, spare part list, Current No. 260 and explosion drawing 1100.0008.01 D sheet 2) The labeling panel is the outer front panel which carries the labeling of all the parts on the front side of the CMU.

  • Page 91: Replacing The Options Floppy Disk Drive Cmu-B61 Or Pcmcia Interface

    MODULE Replacement Replacing the Options FLOPPY DISK DRIVE CMU-B61 or PCMCIA INTERFACE (see chapter 5, spare part list, Current No. 780 (FLOPPY DISK DRIVE) and 830 (PCMCIA INTERFACE, and explosion drawing 1100.0008.01 D sheet 2) The options FLOPPY DISK DRIVE or PCMCIA INTERFACE are fitted on the FRONT MODULE. For replacement proceed as follows: Opening the instrument and removing the FRONT MODULE ½...

  • Page 92: Replacing The Option

    MODULE Replacement Replacing the option ½ Unscrew the two countersunk screws on the cover of the Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE and carefully pull out the option from the FRONT MODULE towards the front. ½ Option FLOPPY DISK DRIVE: Unscrew the countersunk screws on the frame of the FLOPPY DISK DRIVE and take out the FLOPPY DISK DRIVE.

  • Page 93: Replacing The Rf Frontend

    MODULE Replacement Replacing the RF FRONTEND (see chapter 5, spare part list, Current No. 520 and explosion drawing 1100.0008.01 D sheet 2) The RF FRONTEND is installed at the bottom of the CMU at the front right. For replacement proceed as follows: Opening the instrument and removing the RF FRONTEND ½...

  • Page 94: Replacing The Reference Board

    MODULE Replacement Replacing the REFERENCE BOARD (see chapter 5, spare part list, Current No. 540 and explosion drawing 1100.0008.01 D sheet 2) The REFERENCE BOARD is installed at the front right top of the CMU as plug-in module in the cage. For replacement proceed as follows: Opening the instrument and removing the REFERENCE BOARD ½...

  • Page 95: Replacing The Rxtx Board1

    MODULE Replacement Replacing the RXTX BOARD1 (see chapter 5, spare part list, Current No. 550 and explosion drawing 1100.0008.01 D sheet 2) The RXTX BOARD1 is installed in the module support as plug-in module. For replacement proceed as follows: Opening the instrument and removing the RXTX BOARD1 ½...

  • Page 96: Replacing The Tr-Correction Module In The Rxtx Board1

    MODULE Replacement Replacing the TR-CORRECTION MODULE in the RXTX BOARD1 (see chapter 5, spare part list, Current No. 555 and explosion drawing 1100.0008.01 D) The TR-CORRECTION MODULE is incorporated in the RXTX1 BOARD as sandwich module. For replacement proceed as follows: Opening the instrument and removing the TR-CORRECTION MODULE ½...

  • Page 97: Replacing The Digital Board

    MODULE Replacement Replacing the DIGITAL BOARD (see chapter 5, spare part list, Current No. 570 and explosion drawing 1100.0008.01 D sheet 2) The DIGITAL BOARD is incorporated in the module support as plug-in module. For replacement proceed as follows: Opening the instrument and removing the DIGITAL BOARD ½...

  • Page 98: Replacing The Modules: Adc Module1, Ddc Module1, Txdsp Module1, Auc Module1 In The Digital Board

    MODULE Replacement Replacing the MODULES: ADC MODULE1, DDC MODULE1, TXDSP MODULE1, AUC MODULE1 in the DIGITAL BOARD (see chapter 5, spare part list, Current No. 590 (ADC MODULE1), Current No. 580 (DDC MODULE1), Current No. 600 (TXDSP MODULE1), Current No. 610 (AUC MODULE1) and explosion drawing 1100.1791.01 D sheet 2) The sandwich modules ADC MODULE1, DDC MODULE1, TXDSP MODULE1 and AUC MODULE1 are installed in the DIGITAL BOARD as plug-in modules.

  • Page 99: Automatic Module Data Adjustment

    MODULE Replacement Automatic module data adjustment ½ During startup observe the display. ½ When three BEEPs can be heard, press the MENU SELECT key. The version manager is started (see also chapter 4, Firmware update). The display includes the menu item FIRMWARE UPDATE AFTER BOARD CHANGE. ½...

  • Page 100: Replacing The Option Ocxo Reference Osc. Cmu-B11 Or Cmu-B12

    MODULE Replacement Replacing the Option OCXO REFERENCE OSC. CMU-B11 or CMU- (see chapter 5, spare part list, Current No. 690 (OCXO REFERENCE OSC. CMU-B11), 710 (OCXO REFERENCE OSC. CMU-B12 and explosion drawing 1100.0008.01 D sheet 2) The Option OCXO REFERENCE OSC. is fitted at the right side panel below the instrument fan in the CMU.

  • Page 101: Replacing The Option Universal Signalling Unit Cmu-B21

    MODULE Replacement Replacing the Option UNIVERSAL SIGNALLING UNIT CMU-B21 (see chapter 5, spare part list, Current No. 730 and explosion drawing 1100.0008.01 D sheet 2) The OPTION UNIV. SIGN. UNIT is installed in the module support as plug-in module. For replacement proceed as follows: Opening the instrument and removing the OPTION UNIV.

  • Page 102: Replacing The Modules: Dsp Module0/1, Iqout Module, Option Speech Codec Cmu-B52 (Includes Dsp Module3) In The Univ. Sign. Unit

    MODULE Replacement Replacing the MODULES: DSP MODULE0/1, IQOUT MODULE, OPTION SPEECH CODEC CMU-B52 (INCLUDES DSP MODULE3) in the UNIV. SIGN. UNIT MODULE1), 760 (see chapter 5, spare part list, Current No. 740 (DSP MODULE0), 741 (DSP (SPEECH CODEC), MODULE3), 765 (DSP 750 (I/Q OUT MODULES and explosion drawing 1100.5216.01 D sheet 2)

  • Page 103: Automatic Module Data Adjustment

    MODULE Replacement Automatic module data adjustment ½ During startup observe the display. ½ When three BEEPs can be heard, press the MENU SELECT key. The version manager is started (see also chapter 4, Firmware update). The display includes the menu item FIRMWARE UPDATE AFTER BOARD CHANGE. ½...

  • Page 104: Replacing The Option Audio-Gen. + Ana. Cmu-B41

    MODULE Replacement Replacing the Option AUDIO-GEN. + ANA. CMU-B41 (see chapter 5, spare part list, Current No. 755 and 756 and explosion drawing 1100.0008.01 D sheet 2) The Option AUDIO-GEN. + ANA. is installed at the front right top of the CMU as plug-in module in the cage.

  • Page 105: Replacing The Power Supply

    MODULE Replacement Replacing the POWER SUPPLY (see chapter 5, spare part list, Current No. 670 and explosion drawing 1100.0008.01 D sheet 2) The POWER SUPPLY is fitted at the rear of the instrument frame of the CMU. For replacement proceed as follows: Removing the POWER SUPPLY ½...

  • Page 106: Replacing The Instrument Fan

    MODULE Replacement Replacing the Instrument Fan (see chapter 5, spare part list, Current No. 80, and explosion drawing 1100.0008.01 D sheet 2) The fan is fitted at the right side panel of the CMU in an air duct. For replacement proceed as follows: Opening the instrument and removing the fan ½...

  • Page 107: Replacing The Motherboard

    MODULE Replacement Replacing the MOTHERBOARD (see chapter 5, spare part list, Current No. 620 (MOTHERBOARD1), Current No. 630 (MOTHERBOARD2), Current No. 660 (FRONTPANEL BOARD), Current No. 640 (REARPANEL BOARD1), Current No. 650 (REARPANEL BOARD2) and explosion drawing 1100.0008.01 D) The MOTHERBOARD consists of five parts: MOTHERBOARD1, MOTHERBOARD2, FRONTPANEL BOARD, REARPANEL BOARD1 and REARPANEL BOARD2.

  • Page 108: Motherboard2 (Small Motherboard)

    MODULE Replacement MOTHERBOARD2 (small MOTHERBOARD) Opening the instrument and removing MOTHERBOARD2 ½ Switch off the instrument and pull the mains plug and unscrew the rear-panel feet. ½ Place the instrument onto the front carrying handles, push the tube upwards and take off. ½...

  • Page 109: Rearpanel Board1 (Interface Board For Standard Connectors At The Rear Of The Instrument Frame)

    MODULE Replacement REARPANEL BOARD1 (Interface board for Standard Connectors at the Rear of the Instrument Frame) Opening the instrument and removing the REARPANEL BOARD1 ½ Switch off the instrument and pull the mains plug and unscrew the rear-panel feet. ½ Place the instrument onto the front carrying handles, push the tube upwards and take off. ½...

  • Page 110: Troubleshooting

    Troubleshooting Troubleshooting Faulty functions may sometimes originate in simple causes, but sometimes they also result from faulty components. These troubleshooting instructions permit to trace the fault down to module level and make the instrument ready for use again by means of module adjustment. For the module adjustment and further error elimination, we recommend to send the instrument to our authorized service (see list of addresses, preface).

  • Page 111: Troubleshooting Using The Leds (H1 To H8) On The Motherboard

    Troubleshooting Troubleshooting using the LEDs (H1 to H8) on the MOTHERBOARD • Fault: CMU cannot be switched on. Mains outlet, mains Provide appropriate cable and all switches in the circuit of the mains AC supply voltage! outlet are under voltage? Mains cable plugged in at CMU POWER Plug in mains cable!
  • Page 112 Troubleshooting • Fault: Short-circuit of one or several operating voltages ½ Check LEDs (H1 to H8) at the bottom of MOTHERBOARD1 to determine which voltage is short- circuited. Note: In the case of a short-circuit, the power supply switches off all voltages after a short period of time.

  • Page 113: Troubleshooting Using The Selftest Menu For Modules

    Troubleshooting Troubleshooting using the SELFTEST Menu for Modules The SELFTEST menu indicate the diagnostic voltages for the individual modules of which the modules settings are exactly defined. Thus, a specific selftest of the respective module is possible. This menu additionally features internal RF power measurements which are designed as RF loop with internal generator and analyzer.

  • Page 114: Troubleshooting Using The Info Menu For Modules

    Troubleshooting Troubleshooting using the INFO Menu for Modules The INFO menu can be called up via the INFO key on the front panel of the CMU from each measurement application of the CMU. Thus, it is possible to get diagnostic voltages, when the measurement application on the respective module is exactly selected, e.g.
  • Page 115 Troubleshooting • Example: Info menu REFERENCE BOARD Fault: The frequency accuracy of the RF signal deviates. Call the Maintenance Menu via the INFO Key select REFERENCE BOARD, start the diagnosis measurement using the TEST Key and activate the ON hardkey. All diagnostic voltages Int.

  • Page 116: Troubleshooting Using The Error Messages On The Lc Display

    Troubleshooting Troubleshooting using the ERROR messages on the LC display Error message Error description Troubleshooting to These clocks are Netclock 1 / 2 not present REFERENCE BOARD, not present: DIGITAL BOARD, NET_CLOCK_1 MMCX cable W31/W32 NET_CLOCK_2 These clocks are 110.8MHz Reference clock not present REFERENCE BOARD, not present: DIGITAL BOARD,...

  • Page 117: More Troubleshooting

    Troubleshooting More troubleshooting General errors on the transmitter side of the CMU Error description Troubleshooting to Setting frequency in the module test faulty REFERENCE BOARD MMCX cable W12 RXTX BOARD1 TR-CORRECTION MODULE1 MMCX cable W17 AUC MODULE1 TX DSP MODULE1 Setting frequency in the signalling test faulty UNIV.

  • Page 118: General Errors On The Receiver Side Of The Cmu

    Troubleshooting General errors on the receiver side of the CMU Error description Troubleshooting to Received frequency in the module test faulty REFERENCE BOARD MMCX cable W12 RXTX BOARD1 TR-CORRECTION MODULE1 MMCX cable W19 ADC MODULE1 DDC MODULE1 Received frequency in the signalling test faulty UNIV.

  • Page 119: Software Update/Installing Options

    New Installation of the CMU Software Software Update/Installing Options This chapter contains information on extension and modification of the CMU. Additional manuals obtained together with a software/firmware update or with subsequently acquired options can be filed here. New Installation of the CMU Software A software update can be performed in the CMU using the PCMCIA INTERFACE or the FLOPPY DISK DRIVE (CMU-U61).

  • Page 120: Performing A Software Update

    New Installation of the CMU Software Performing a Software Update On start-up, an automatic test is made to check whether an update floppy disk or a flash disk/hard disk is available. If this is the case, the version manager is started, displaying the following possible selections: VersionManager Ver X.X The active CMU software is the version: [active version]...

  • Page 121: Reinstalling The Old Software

    Reinstalling the Old Software Reinstalling the Old Software As described above, each software version, even older versions, can be simply loaded from a appropriate floppy disk or flash disk/hard disk using the version manager. It is also possible to keep several software versions stored on the hard disk in the CMU and reload them, if required, using the version manager.

  • Page 122: Installing The Options

    Installing the Options Installing the Options The following options are available with the CMU: 1110.5000.02 Option OCXO REFERENCE OSC. 2*10 Aging/year CMU-B11 Option OCXO REFERENCE OSC. 3.5*10 Aging/year CMU-B12 1110.5100.02 Option ADDITIONAL RF/IF CONNECTORS CMU-B15 1110.6006.02 Option UNIVERSAL SIGNALLING UNIT CMU-B21 1100.5200.02 Option AUDIO-GEN.
  • Page 123 Installing the Options All options can be installed by the user himself. No additional measuring equipment is necessary for putting into operation. Caution! Disconnect the instrument from the mains before opening the casing. Also note the safety instructions at the beginning of this manual. The components used in the instrument are sensitive to electrostatic discharges which is why they are to be dealt with according to the ESD regulations.
  • Page 124 Installing the Options Option UNIV. SIGN. UNIT CMU-B21 1100.5200.02 To this end the instrument must be opened. Proceed according to the instructions enclosed with the option (see also chapter 3, Replacing the OPTION UNIV. SIGN. UNIT CMU-B21 1100.5200.02). Option AUDIO-GEN. + ANA. CMU-B41 1100.5300.02 To this end the instrument must be opened.
  • Page 125 Installation of Option CMU-B11 OCXO REF.OSC. (1100.5000.02) Contents 1 Preparation ........................2 2 Installation of Option......................3 3 Assembling Unit ....................... 4 4 Functional Test of Option CMU-B11 ................5 This option may also be installed at the customer’s R&S Installation Instructions CMU-B11 OCXO REF.OSC.

  • Page 126: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four cross-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig. 1 R&S Installation Instructions CMU-B11 OCXO REF.OSC. Bi/1CMK 22.02.99 1100.5080.00 01.00...

  • Page 127: Installation Of Option

    2 Installation of Option Insert OCXO REFERENCE OSC. into unit from the side until it plugs into connector X212 on motherboard 1. Fit OCXO REFERENCE OSC. using the three supplied screw and washer assemblies (VS 0071.5040.00, see Fig. 2). LABEL “OPTION INCL.” OCXO REFERENCE OSC.

  • Page 128: Assembling Unit

    3 Assembling Unit Affixing Option Label ½ Affix OPTION INCL. label to power supply unit (Fig. 2). Putting Casing Back ½ Fit casing and cabinet feet in the reverse order given under 1.2 / 1.3 (Fig. 1). R&S Installation Instructions CMU-B11 OCXO REF.OSC. Bi/1CMK 22.02.99 1100.5080.00 01.00...

  • Page 129: Functional Test Of Option Cmu-B11

    4 Functional Test of Option CMU-B11 ½ Connect unit to AC supply and switch on. Test of Option Detection ½ Press SETUP hardkey SYSTEM panel. ½ Press OPTIONS softkey located on the row of keys at bottom of display. ½ -->...
  • Page 131 Installation of Option CMU-B12 OCXO REF.OSC. (1100.5100.02) Contents 1 Preparation ..........................2 2 Installation of Option........................3 3 Assembling Unit ......................... 4 4 Functional Test of Option CMU-B11 ..................5 This option may also be installed at the customer’s R&S Installation Instructions CMU-B12 OCXO REF.OSC.

  • Page 132: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four cross-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig. 1 R&S Installation Instructions CMU-B12 OCXO REF.OSC. Bi/1CMK 22.02.99 1100.5180.00 01.00...

  • Page 133: Installation Of Option

    2 Installation of Option Insert OCXO REFERENCE OSC. into unit from the side until it plugs into connector X212 on motherboard 1. Fit OCXO REFERENCE OSC. using the three supplied screw and washer assemblies (VS 0071.5040.00, see Fig. 2). LABEL „OPTION INCL.“ OCXO REFERENCE OSC.

  • Page 134: Assembling Unit

    3 Assembling Unit Affixing Option Label ½ Affix OPTION INCL. label to power supply unit (Fig. 2). Putting Casing Back ½ Fit casing and cabinet feet in the reverse order given under 1.2 / 1.3 (Fig. 1). R&S Installation Instructions CMU-B12 OCXO REF.OSC. Bi/1CMK 22.02.99 1100.5180.00 01.00...

  • Page 135: Functional Test Of Option Cmu-B11

    4 Functional Test of Option CMU-B12 ½ Connect Unit to AC Supply and switch on. Test of Option Detection ½ Press SETUP hardkey SYSTEM panel. ½ Press OPTIONS softkey located on the row of keys at bottom of display. --> Check whether option CMU-B12 is indicated and activated. Test of Frequency Accuracy Preparation: The measurement can be carried out the connector REFOUT1 (rear of CMU) at 10 MHz or at the connector RF3OUT...
  • Page 137 Installation of Option CMU-B21 UNIV. SIGN. UNIT (1100.5200.02) Contents 1 Preparation ..........................2 2 Installation of Option........................4 3 Assembling Unit ......................... 5 4 Functional Test of Option CMU-B21 ..................6 This option may also be installed at the customer’s. R&S Installation Instruction CMU-B21 UNIV.SIGN.UNITBi/1CMK...

  • Page 138: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four cross-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig. 1 R&S Installation Instruction CMU-B21 UNIV.SIGN.UNITBi/1CMK 18.11.99 1100.5280.00 02.00 page 2 of 6...
  • Page 139 After undoing two countersunk head screws at the top left frame, raise cover slightly, push somewhat to the right and take it off towards the top. COUNTERSUNK HEAD COVER SCREWS Fig. 2 R&S Installation Instruction CMU-B21 UNIV.SIGN.UNITBi/1CMK 18.11.99 1100.5280.00 02.00 page 3 of 6...

  • Page 140: Installation Of Option

    2 Installation of Option Remove cover on the vent in the intermediate panel of the 7 slot as seen from the front (Fig. 3). Insert CMU-B21 into 7 slot as seen from the front. CMU-B21 COVER removed OPTION INCL. label Fig.

  • Page 141: Assembling Unit

    Assembling Unit Affixing Option Label ½ Affix OPTION INCL. label on power supply unit (Fig. 2). Putting Cover Back ½ Fit cover and cabinet feet back on in the reverse order to that described under 1.2/1.3 (Fig. 1). R&S Installation Instruction CMU-B21 UNIV.SIGN.UNITBi/1CMK 18.11.99 1100.5280.00 02.00...

  • Page 142: Functional Test Of Option Cmu-B21

    4 Functional Test of Option CMU-B21 ½ Connect unit to AC supply and switch on Automatic Module Data Adjustment ½ During startup observe the display. ½ When three BEEPs can be heard, press the MENU SELECT key. The VersionManager is started (see also chapter 4, Firmware update). The display includes the menu item FIRMWARE UPDATE AFTER BOARD CHANGE.
  • Page 143 Installation of Option CMU-B41 AUDIO-GEN.+ANA. (1100.5300.02) Contents 1 Preparation ......................2 2 Installation of the Option ..................4 2.1 Fitting............................4 2.1 Cabling ............................5 3 Assembly of Unit ....................6 3.1 Affixing Option Label ........................6 3.2 Fitting Enclosure ......................... 6 4 Functional Test of Option CMU-B41 ..............

  • Page 144: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four crosss-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig.1 R&S PB Installation Instruction CMU-B41 AUDIO-GEN.+ANA. Bi/1CMK 18.11.99 1100.5397.00 02.00 page 2 of 7...
  • Page 145 ½ After undoing two countersunk head screws at the top left frame, raise cover slightly, push somewhat to the right and take it off towards the top COUNTER HEAD SCREWS COVER Fig. 2 R&S PB Installation Instruction CMU-B41 AUDIO-GEN.+ANA. Bi/1CMK 18.11.99 1100.5397.00 02.00 page 3 of 7...

  • Page 146: Installation Of The Option

    2 Installation of the Option 2.1 Fitting ½ Remove clamp. Take off vent cover between air duct and cage since it is no longer needed (Fig. 3). ½ Plug module CMU-B41 into free slot at the right-hand side of unit. ½...

  • Page 147: Cabling

    2.1 Cabling The option has the electrical designation A 11. When installing the option CMU-B41, observe that the designations of built-in cables for batches 831593..., 829740..., 830377..., and 828942... are not complete or incorrect and so the cables have to be identified according to the following list.

  • Page 148: Assembly Of Unit

    Assembly of Unit 3.1 Affixing Option Label ½ Stick ”OPTION INCL.” label to the power supply (Fig.3). 3.2 Fitting Enclosure ½ Mount enclosure and rear feet in the reverse order to that described under points 1.2/1.3 (Fig. 1). R&S PB Installation Instruction CMU-B41 AUDIO-GEN.+ANA. Bi/1CMK 18.11.99 1100.5397.00 02.00...

  • Page 149: Functional Test Of Option Cmu-B41

    4 Functional Test of Option CMU-B41 ½ Connect unit to AC supply and switch on. 4.1 Automatic Module Data Adjustment ½ During startup observe the display. ½ When three BEEPs can be heard, press the MENU SELECT key. The VersionManager is started (see also chapter 4, Firmware update). The display includes the menu item FIRMWARE UPDATE AFTER BOARD CHANGE.
  • Page 151 Installation of Option CMU-B52 SPEECH CODEC (1100.5400.02) Contents 1 Preparation ......................2 2 Installation of Option ..................... 4 3 Assembling Unit ..................... 6 3.1 Affixing Option Label ........................6 3.3 Putting Cover Back ........................6 4 Functional Test of Option CMU-B52 ..............7 4.1 Automatic Module Data Adjustment..................

  • Page 152: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four cross-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig. 1 R&S Installation Instruction CMU-B52 SPEECH_CODEC Bi/1CMK 18.11.99 1100.5474.00 02.00 page 2 of 7...
  • Page 153 ½ After undoing two countersunk head screws at the top left frame, raise cover slightly, push somewhat to the right and take it off towards the top. COUNTERSKUNK HEAD COVER SCREWS Fig. 2 R&S Installation Instruction CMU-B52 SPEECH_CODEC Bi/1CMK 18.11.99 1100.5474.00 02.00 page 3 of 7...

  • Page 154: Installation Of Option

    2 Installation of Option ½ Remove module CMU-B21 from slot seven as viewed from the front and undo screws on shielding enclosure (Fig. 3) ½ Plug option CMU-B52 into slots on CMU-B21 A420 and A470 and affix label (Fig. 4) CMU-B21 OPTION INCL.
  • Page 155 LABEL OPTION INCL. A420 A470 Fig. 4 R&S Installation Instruction CMU-B52 SPEECH_CODEC Bi/1CMK 18.11.99 1100.5474.00 02.00 page 5 of 7...

  • Page 156: Assembling Unit

    Assembling Unit 3.1 Affixing Option Label ½ Affix OPTION INCL. label on power supply unit (Fig. 3) 3.2 Assembly of Unit ½ Fit enclosure to module and insert module into the unit (Fig. 3). ½ Mount cover in the reverse order to that described under 1.4 (Fig. 2). 3.3 Putting Cover Back ½...

  • Page 157: Functional Test Of Option Cmu-B52

    4 Functional Test of Option CMU-B52 ½ Connect unit to AC supply and switch on 4.1 Automatic Module Data Adjustment ½ During startup observe the display. ½ When three BEEPs can be heard, press the MENU SELECT key. The VersionManager is started (see also chapter 4, Firmware update). The display includes the menu item FIRMWARE UPDATE AFTER BOARD CHANGE.
  • Page 159 Installation of Option CMU-B53 BLUETOOTH F.CMU (1100.5700.02) Contents Preparation.......................... 2 Installation of Option ......................4 Modification of Universal Link Handler (Fig. 4) ..............5 Assembling the Unit ......................6 Functional Test of Option CMU-B53.................. 6 This option may also be installed at the customer's. Required hardware: CMU-B21 R&S Installation Instruction...

  • Page 160: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four cross-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig. 1 R&S Installation Instruction CMU-B53 BLUETOOTH_F.CMUBi/1CMK 08.09.00 1100.5780.00 01.00 page 2 of 6...
  • Page 161 After undoing two countersunk head screws at the top left frame, raise cover slightly, push somewhat to the right and take it off towards the top. COUNTERSKUNK HEAD COVER SCREWS Fig.2 R&S Installation Instruction CMU-B53 BLUETOOTH_F.CMUBi/1CMK 08.09.00 1100.5780.00 01.00 page 3 of 6...

  • Page 162: Installation Of Option

    2 Installation of Option If the module in the second slot from the instrument front has the order no. 1100.1404.02 or 1100.1733.02, then it is not possible to fit option CMU-B53. Use modification kit CMU-U53 instead. Remove module CMU-B21 in the seventh slot seen from the front (Fig. 3). CMU-B21 RX/TX Fig.

  • Page 163: Modification Of Universal Link Handler (Fig. 4)

    3 Modification of Universal Link Handler (Fig. 4) Remove the two screen covers after undoing the screws. If the TAZ (update status) of the Link Handler base plate (1097.3570.02) is lower than –03.06-, refer to Service Info No. 1304. The update status (TAZ) can be seen on the barcode label stuck to the solder side of the board inside the screening strip.

  • Page 164: Assembling The Unit

    Assembling the Unit Fit cover and cabinet feet back on in the reverse order to that described under 1.2/1.3/1.4 (Fig. 1 + 2). 5 Functional Test of Option CMU-B53 Connect unit to AC supply and switch on. Automatic module data adjustment During startup observe the display.
  • Page 165 Modification Kit CMU-U53 BLUETOOTH F.CMU (1100.7302.02) Contents Preparation.......................... 2 Board Exchange........................4 Modification of Universal Link Handler................5 Assembling the Unit ......................10 Functional Test of Modification Kit CMU-U53 ..............10 Required hardware: CMU-B21 R&S Installation Instruction CMU-U53 BLUETOOTH_F.CMUBi/1CMK 08.09.00 1100.7383.00 01.00 page 1 of 11...

  • Page 166: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four cross-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig. 1 R&S Installation Instruction CMU-U53 BLUETOOTH_F.CMUBi/1CMK 08.09.00 1100.7383.00 01.00 page 2 of 11...
  • Page 167 After undoing two countersunk head screws at the top left frame, raise cover slightly, push somewhat to the right and take it off towards the top. COUNTERSUNK HEAD COVER SCREWS Fig. 2 R&S Installation Instruction CMU-U53 BLUETOOTH_F.CMUBi/1CMK 08.09.00 1100.7383.00 01.00 page 3 of 11...

  • Page 168: Board Exchange

    2 Board Exchange If the module in the second slot from the instrument front has the Order No. 1100.1404.02 or 1100.1733.02, replace it by the RX/TX module included in the modification kit. Caution: cables are to be disconnected at the top and the bottom of the instrument (Fig. 3). Remove module CMU-B21 in the seventh slot seen from the front (Fig.

  • Page 169: Modification Of Universal Link Handler

    3 Modification of Universal Link Handler Remove the two screen covers after undoing the screws (Fig. 4). If the TAZ (update state) of the Link Handler base plate (1097.3570.02) is lower than -03.06-, modify as shown in Fig. 5. The update status (TAZ) can be seen on the barcode label stuck to the solder side of the board inside the screening strip.
  • Page 170 BLUETOOTH MODULE LABEL OPTION INCL. A430 A420 Fig. 4 R&S Installation Instruction CMU-U53 BLUETOOTH_F.CMUBi/1CMK 08.09.00 1100.7383.00 01.00 page 6 of 11...
  • Page 171 Modifications on component side: Connect pin 30 of X422 to pin 29 of X432. Fix wires with UV glue. Fig. 5 R&S Installation Instruction CMU-U53 BLUETOOTH_F.CMUBi/1CMK 08.09.00 1100.7383.00 01.00 page 7 of 11...
  • Page 172 Modification of screen cover Make opening in top screen cover. Fig. 6 R&S Installation Instruction CMU-U53 BLUETOOTH_F.CMUBi/1CMK 08.09.00 1100.7383.00 01.00 page 8 of 11...
  • Page 173 Modifications on component side: Connect 2.43 kΩ resistor R400 (stock no. 0083.0884.00, included in the modification kit) closely to R4 (upper pad) and to pin 29 of X432. Fig. 7 R&S Installation Instruction CMU-U53 BLUETOOTH_F.CMUBi/1CMK 08.09.00 1100.7383.00 01.00 page 9 of 11...

  • Page 174: Assembling The Unit

    Assembling the Unit Fit cover and cabinet feet back on in the reverse order to that described under 1.2/1.3/1.4 (Fig. 1 and 2). 5 Functional Test of Modification Kit CMU-U53 Connect unit to AC supply and switch on. Automatic module data adjustment During startup observe the display.
  • Page 175 Calibration Since the Rx/Tx module was replaced, a complete instrument calibration (ACS) has to be performed: Calibrate the FM path in the Maintenance menu. Bluetooth Functional Test Connect a Bluetooth module to RF2 via RF cable or antenna. Perform inquiry procedure. Set up a connection to the Bluetooth DUT.
  • Page 177 Installation of Option CMU-U61 FLOPPY DISKDRIVE (1100.5500.02) Contents 1 Preparation ........................2 2 Installation of Option......................5 3 Assembling Unit ....................... 8 4 Functional Test of Option CMU-U61 ................9 This option may also be installed at the customer’s. R&S Install.

  • Page 178: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig. 1 R&S Install. Instruction CMU-U61 FLOPPY DISKDRIVE Bi/1CMK 06.05.99 1100.5568.00 02.00 page 2 of 9...
  • Page 179 Undo four screws from front handles and take off handles. Undo the countersunk screw (if any) at the front on the labelling panel next to the rollkey and pull panel to the front. Undo two countersunk screws each from the top and bottom frame at the front as well as two countersunk screws above the AUX1/2 BNC connector at the front.
  • Page 180 Screw assembly Fig. 2 R&S Install. Instruction CMU-U61 FLOPPY DISKDRIVE Bi/1CMK 06.05.99 1100.5568.00 02.00 page 4 of 9...

  • Page 181: Installation Of Option

    2 Installation of Option ½ Fold up flat cable (Fig. 3). Contacts top Fig. 3 R&S Install. Instruction CMU-U61 FLOPPY DISKDRIVE Bi/1CMK 06.05.99 1100.5568.00 02.00 page 5 of 9...
  • Page 182 ½ Fit floppy drive to holding frame and plug flat cable (Fig. 4). Flat cable Holding frame Floppy frame Fig. 4 R&S Install. Instruction CMU-U61 FLOPPY DISKDRIVE Bi/1CMK 06.05.99 1100.5568.00 02.00 page 6 of 9...
  • Page 183 ½ Fit floppy drive with frame to front module using two countersunk screws supplied (Fig. 5). Fig. 5 R&S Install. Instruction CMU-U61 FLOPPY DISKDRIVE Bi/1CMK 06.05.99 1100.5568.00 02.00 page 7 of 9...

  • Page 184: Assembling Unit

    3 Assembling Unit Affixing Label ½ Affix „CMU-U61“ label on power supply unit (Fig. 6). CMU-U61 label Fig. 6 Re-Mounting Front-Panel ½ Mount front module, labelling panel, front handles and casing in the reverse order to that described under 1.4 to 1.11 (Fig. 2). ½...

  • Page 185: Functional Test Of Option Cmu-U61

    4 Functional Test of Option CMU-U61 ½ Connect unit to AC supply and switch on. Enter Floppy Disk Drive into BIOS setup If PCMCIA Interface is retrofitted on Floppy Disk Drive CMU-U61 or Floppy Disk Drive CMU-U61 is fitted for the first time the following alterations are necessary in BIOS setup: ½...
  • Page 187 Installation of Option CMU-B71 ABIS INTERFACE UNIT (1100.6406.02) Contents 1 Preparation ..........................2 2 Installation of Option........................4 3 Assembling Unit ......................... 5 4 Functional Test of Option CMU-B71 ..................5 This option may also be installed at the customer’s. R&S Installation Instruction CMU-B71 ABIS INTERFACE UNIT Bt/1CMK...

  • Page 188: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four cross-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig. 1 R&S Installation Instruction CMU-B71 ABIS INTERFACE UNIT Bt/1CMK 07.02.01 1100.6493.00 01.00 page 2 of 6...
  • Page 189 1.4 After undoing two countersunk head screws at the top left frame, raise cover slightly, push somewhat to the right and take it off towards the top. COUNTERSUNK HEAD COVER SCREWS Fig. 2 R&S Installation Instruction CMU-B71 ABIS INTERFACE UNIT Bt/1CMK 07.02.01 1100.6493.00 01.00 page 3 of 6...

  • Page 190: Installation Of Option

    2 Installation of Option Remove cover on the vent in the intermediate panel of the 1 slot as seen from the front (Fig. 3). Insert CMU-B71 into 1 slot as seen from the front. Fit cables W714, W713, W700. CMU-B71 COVER removed W 714 side on Motherboard X204...

  • Page 191: Assembling Unit

    Assembling Unit 3.1 Putting Cover Back Fit cover and cabinet feet back on in the reverse order to that described under 1.2/1.3 (Fig. 1). Functional Test of Option CMU-B71 4.1 Connect unit to power and switch on 4.2 Automatic Module Data Adjustment ½...
  • Page 192 --> The following screen is displayed: The Alarm Monitor softkey switches to RUN. The NO Signal LED symbol is red. Alarm Indication Signal, No Synchronization and No CRC Multiframe are grey (de-activated). Alarm messages with date and time are displayed in the window next to the Alarms softkey. They are continuously updated and always state No Signal.
  • Page 193 Installation of Option CMU-B81 CDMA SIGN. UNIT (1100.6506.02) Contents 1 Preparation ..........................2 2 Installation of Option........................4 3 Assembling Unit ......................... 5 4 Functional Test of Option CMU-B81 ..................6 This option may also be installed at the customer's. R&S Installation Instruction CMU-B81 CDMA.SIGN.UNITBi/1CMK...

  • Page 194: Preparation

    1 Preparation Switch off unit and unplug power cable. Screw off cabinet feet (four cross-recessed screws, size 2). Place unit on handles at the front, push casing upwards and remove (Fig. 1). Fig. 1 R&S Installation Instruction CMU-B81 CDMA.SIGN.UNITBi/1CMK 21.12.00 1100.6587.00 03.00 page 2 of 6...
  • Page 195 1.4 After undoing two countersunk head screws at the top left frame, raise cover slightly, push somewhat to the right and take it off towards the top. COUNTERSUNK HEAD COVER SCREWS Fig. 2 R&S Installation Instruction CMU-B81 CDMA.SIGN.UNITBi/1CMK 21.12.00 1100.6587.00 03.00 page 3 of 6...

  • Page 196: Installation Of Option

    2 Installation of Option Caution: Prior to installation, check whether the connectors of the module fit into the 5th or 8th slot of the motherboard of as seen from the front panel. Depending on the result of this check, proceed according to items 2.1 and 2.2.

  • Page 197: Assembling Unit

    Assembling Unit Affixing Option Label Affix OPTION INCL. label on power supply unit (Fig. 2). Putting Cover Back Fit cover and cabinet feet back on in the reverse order to that described under 1.2/1.3 (Fig. 1). R&S Installation Instruction CMU-B81 CDMA.SIGN.UNITBi/1CMK 21.12.00 1100.6587.00 03.00 page 5 of 6...

  • Page 198: Functional Test Of Option Cmu-B81

    4 Functional Test of Option CMU-B81 Connect unit to AC supply and switch on Automatic module data adjustment During startup observe the display. When three BEEPs can be heard, press the MENU SELECT key. The VersionManager is started (see also chapter 4 of CMU service manual instrument, Firmware update). The display includes the menu item FIRMWARE UPDATE AFTER BOARD CHANGE.

  • Page 199: Documents

    Module and Cable Exchange Documents This chapter contains the documents for the CMU basic unit. The documents for the modules with the description of function, adjustment and interfaces are relegated to the Service Manual, Stock no. 1110.4903.92. To order replacement parts and modules please contact our spare parts express service or your Rohde &...

  • Page 200: Table 5-1 List Of Power Cables Available

    Module and Cable Exchange The defective parts must be sent back with a returned accompanying document containing the following information: • Stock number, serial number and designation of the dismounted part, • Precise description of the error, • Stock number, serial number and designation of the instrument the part was dismounted from, •...
  • Page 201 Overview of Spare Parts for CMU Basic Unit 1100.4903.82...
  • Page 203 Module and Cable Exchange List of CMU Spare Parts The CMU is constructed in accordance with R&S design 2000. Overall dimension: W x H x L, 465 mm x 193 mm x 517 mm Rackmount: 4E 1/1 T450 Note: The parts which are fitted with a Current No. can be ordered as spare parts. Current No.
  • Page 204 Module and Cable Exchange Current No. Designation Stock No. Electr.No. Keyboard frame 1091.1153.00 Keyboard mat 1100.0166.00 Keyboard membrane 1100.2008.00 A 15 Mounting plate 1090.9680.00 Shielded filter plate 1091.2014.00 RF Spring long 1069.3011.00 RF Spring short 1069.3105.00 Plate support 0852.0844.00 LCD VAR 04 0048.4435.00 A 14 LCD VAR 12...
  • Page 205 Module and Cable Exchange Current No. Designation Stock No. Electr.No. Hood VAR 12 1091.1024.00 Panel 1090.9650.00 FRONT MODULE CONTROLLER VAR 04 1091.2108.00 FRONT MODULE CONTROLLER VAR 12 1091.2489.00 Lithium battery 0565.1687.00 Memory MODULES 16 MB (SIMM –72) 0010.9369.00 VAR 04 Memory MODULES 32 MB (SODIMM –144) 0048.5654.00 VAR 12...
  • Page 206 Module and Cable Exchange Current No. Designation Stock No. Electr.No. DIGITAL BOARD 1100.1791.02 DIGITAL BOARD 1100.1804.02 A 700 DDC MODULE1 1100.2300.03 A 710 DDC MODULE2 1100.2300.03 A 730 AUC MODULE1 1100.2500.02 A 760 AUC MODULE2 1100.2500.02 A 780 TXDSP MODULE1 1100.2100.03 A 750 TXDSP MODULE2...
  • Page 207 Module and Cable Exchange Current No. Designation Stock No. Electr.No. OCXO REFERENCE OSC. 1100.2900.03 CMU-B21 UNIVERS.SIGN.UNIT 1100.5200.02 UNIV. SIGN. UNIT A 8 / A 9 1100.5216.02 1100.5216.03 LINK HANDLER BOARD 1097.3570.02 A 400 DSP MODULE0 A 440 1097.3106.03 1097.3129.03 DSP MODULE1 1097.3106.03 A 450 1097.3129.03...
  • Page 208 Module and Cable Exchange Current No. Designation Stock No. Electr.No. Flex strip connection 1091.2066.00 PCMCIA INTERFACE 1100.5616.02 Card slot 1047.2006.00 ∗ RF cable 1100.3894.00 ∗ RF cable 1100.3907.00 ∗ RF cable 1100.3913.00 ∗ RF cable 1100.3920.00 ∗ RF cable 1100.3965.00 W 12 ∗...
  • Page 209 Module and Cable Exchange Current No. Designation Stock No. Electr.No. 1040 Front grip 1096.1480.00 1050 Screw 1096.4780.00 1060 Rear panel foot 1096.2493.00 1070 Instrument foot 1096.2506.00 1080 Clamp 1096.2529.00 1090 Tube hood 1096.2558.00 1100.4903.82 5.11...
  • Page 211 Drawings of all CMU Spare Parts 1100.4903.82 5.13...
  • Page 213 Circuit Diagram Part List Adjustment Devices for CMU Basic Unit 1100.4903.82...
  • Page 215 Index Index ADC Module1 (DIGITAL Board)........3.12 Manual Test Procedure ..........1.7 Adjustment Maximum distortion ............1.13 + 5 VDC Reference Voltage ........2.2 Measuring instruments ..........1.2, 1.8 10 MHz Reference-Frequency ........2.3 Module replacement Automatic of Module Data ........2.4 ADC Module1 ............3.42 AUC Module1 (DIGITAL Board)........3.13 AUC Module1 ............
  • Page 216 Index POWERGOOD signal (POWER SUPPLY) .....3.6 TCXO Adjustment............... 2.3 REARPANEL Board1 .............3.7 Function..............3.8 REARPANEL Board2 .............3.8 Test report ..............1.18 REFERENCE Board ............3.8 Tolerance analysis ............1.6 Reference frequencies............1.8 Troubleshooting Repair................3.1 General errors............3.61 RF Frontend ..............3.9 using the error messages........3.60 RX Dynamic / average noise level ........1.15 using the INFO Menu for Modules ......

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