Rohde & Schwarz 1138.4000 Service Manual Download

Page: 133 / 213

Radio Unit R&S

CRTU-RU

Troubleshooting

1140.0050.82 3.59

E-4

More troubleshooting

General errors on the transmitter side of the CRTU Radio Unit

Error description

Troubleshooting to

Setting frequency in the module test faulty

REFERENCE BOARD
MMCX cable W12
RXTX BOARD1/2
TR-CORRECTION MODULE1/2
MMCX cable W17
AUC MODULE1/2
TXDSP MODULE1/2

Setting frequency in the signalling test faulty

LINKHANDLER1/2
DIGITAL BOARD

Setting level in the module test faulty

RF FRONTEND
SMA-cable W13
RXTX BOARD1/2
TR-CORRECTION MODULE1/2
MMCX cable W17
AUC MODULE1/2
TXDSP MODULE1/2

Setting level in the signalling test faulty

LINKHANDLER1/2
DIGITAL BOARD

Modulation in the module test faulty

DIGITAL BOARD
AUC MODULE1/2
TXDSP MODULE1/2

Modulation in the signalling test faulty

DIGITAL BOARD
AUC MODULE 1/2
LINKHANDLER1/2

Summary of Contents for 1138.4000

Page 1: ...1140 0050 82 04 1 Test and Measurement Division Service Manual Instrument Radio Unit R S CRTU RU 1138 4000 Printed in the Federal Republic of Germany...

Page 2: ...CRTU RU is generally used as an abbreviation for the Radio Unit R S CRTU RU GPIB is a trademark or a registered trademark of National Instruments Drive Image PartitionMagic BootMagic are registered tr...

Page 3: ...Express Service List of R S Representatives Safety Instructions Contents Contents of Manuals for Universal Radio Communication Tester CMU Tabbed Divider 1 Chapter 1 Performance Test 2 Chapter 2 Adjust...

Page 4: ......

Page 5: ...Fig 4 2 Drive mapping after booting the GSM Operation Software old partition structure 4 3 Fig 4 3 Drive mapping after booting the Windows OPSW new partition structure 4 4 Fig 4 4 VersionManager 4 8 T...

Page 6: ......

Page 7: ...users and equipment 5 Prior to switching on the unit it must be ensured that the nominal voltage set on the unit matches the nominal voltage of the AC supply network If a different voltage is to be s...

Page 8: ...must be packed in the original packing or in packing with electrostatic and mechanical protection 13 Electrostatics via the connectors may dam age the equipment For the safe handling and operation of...

Page 9: ...loor mat and heel strap combination The batteries used in the instrument are high power lithium cells with a life utility of approx 5 years If you do not handle them properly there is a danger of expl...

Page 10: ...9 13306 E mail werner breidling rsd rohde schwarz com In case of urgent spare parts requirements for this Rohde Schwarz unit please contact our spare parts express service Outside business hours pleas...

Page 11: ...9 Hamburg Postfach 60 22 40 D 22232 Hamburg 49 40 63 29 00 0 49 40 630 78 70 Zweigniederlassung Mitte Gesch ftsstelle K ln Niederkasseler Stra e 33 D 51147 K ln Postfach 900 149 D 51111 K ln 49 2203 8...

Page 12: ...giou Thoma 18 Kiti Larnaca 7550 357 24 42 51 78 357 24 42 46 21 hinis logos cy net Cyprus ROHDE SCHWARZ Praha s r o Hadovka Office Park Evropsk 33c 16000 Praha 6 420 2 24 31 12 32 420 2 24 31 70 43 of...

Page 13: ...n Crown Engineering Trading Co Jabal Amman Second Circle Youssef Ezzideen Street P O Box 830414 Amman 11183 962 6 462 17 29 962 6 465 96 72 jocrown go com jo Jordan ROHDE SCHWARZ Kazakhstan Representa...

Page 14: ...65 65 80 77 77 65 62 87 65 77 general infotel com sg Singapore ROHDE SCHWARZ Support Centre Asia PTE Ltd 1 Kaki Bukit View 04 05 07 Techview Singapore 415 941 65 68 46 37 10 65 67 49 17 91 rsca rssg r...

Page 15: ...2 81 88 18 service 44 1252 81 14 47 sales rsuk rohde schwarz com United Kingdom AEROMARINE S A Cerro Largo 1497 11200 Montevideo 598 2 400 39 62 598 2 401 85 97 mjn aeromarine com uy Uruguay ROHDE SCH...

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Page 17: ...measures for re pair and fault diagnosis in particular the replacement of modules and access to hardware settings by means of service commands Chapter 4 Contains information on the extension and modi...

Page 18: ......

Page 19: ...nce Analysis 1 6 Manual Test Procedure 1 7 Selftest 1 7 Interface Test 1 8 IEC bus Interface 1 8 RS 232 Interface 1 8 Control and Sync Bus CSB and Trigger Test of CRTU RU 1 8 Reference Frequencies 1 1...

Page 20: ...SSB Phase Noise 1 18 RX Residual FM AM 1 18 RX Dynamic Average Noise Level 1 18 Options for CRTU Radio Unit 1 19 TX GSM Modulation 1 19 RX GSM Demodulation 1 19 Verification of GSM Functionality 1 20...

Page 21: ...ays A Calibration by an R S Representative with an ACS Calibration System Advantages Automatic procedure Small measurement uncertainties Calibration and readjustment In most cases the instrument does...

Page 22: ...010 30 1066 4317 02 1093 4495 03 TX measurements 3 Power meter NRVD with sensors NRV Z4 NRV Z51 857 8008 02 RX measurements TX measurements 4 Power amplifier 100 kHz to 2 7 GHz Pout 100 W RX measureme...

Page 23: ...DUT CRTU Spectrum Analyzer FSE or FSIQ 10 MHz Reference Freq REFOUT2 REF2 REF IN Fig 1 1 Test setups for reference frequencies TX Level Measurements Test setup TX1 TX2 TX3 TX4 depending on level range...

Page 24: ...z Reference Freq DUT CRTU RF PreAmp 36 dB FSE or FSIQ 130 dBm to 93 dBm 117 dBm to 76 dBm 90 dBm to 55 dBm 10 MHz Reference Freq TX4 RF1 RF2 RF3 OUT Fig 1 2 Test setups for TX level measurements Gener...

Page 25: ...F Power Splitter NRV Z4 NRVD DUT CRTU GEN RX1 depending on max level of power splitter Power Ampl LPF NRVD DUT CRTU GEN direct coupl 30 dB RX2 NRV Z4 Fig 1 4 Test setups for RX level measurements Gene...

Page 26: ...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 The tol...

Page 27: ...vice WCDMA or DOS OPSW Service software Test Select the individual tests and check the results Continuous Selftest 1 4 3 2 RF Loop Test Note The Continuous Selftest combines the System Selftest and In...

Page 28: ...Control and Sync Bus of the CRTU RU and external trigger connectors This test differs depending on whether the CRTU RU has the additional signalling Link Handler LH Boards CRTU B5 fitted or not This...

Page 29: ...nd Sync Bus Detailed Test Analysis beginning on p 1 10 Control and Sync Bus Test for CRTU RU with two CRTU B5 These tests are supported starting with CR02P2P operational software version 1 55 Boot fro...

Page 30: ...Windows service CRTU X startup service Control and Sync Bus Test 2 External Trigger Bus Test Setup CTRL Cable connected to CONTROL A and CONTROL B of the CRTU RU loopback Two BNC Cables connect TRIG...

Page 31: ...lock period of the SLOT CLOCK is 576 92 s and the period of the BIT CLOCK is 3 69 s If one or more clocks cannot be detected the motherboard must be replaced Control and Sync Bus Test 7 Frame and Slot...

Page 32: ...ronized test setup REF1 Preparation Feed in at REF IN 52 MHz sinewave 0 5 V rms Connect frequency counter to RF3 OUT Control Set CRTU Radio Unit to external reference 52 MHz RF 1 GHz menu RF ANALYZER...

Page 33: ...up REF2 REF OUT 2 signal 13 MHz or 10 MHz Set CRTU Radio Unit to external reference Feed in at REF IN 10 MHz sinewave 0 5 V rms Set CRTU Radio Unit to REF OUT 2 13 MHz or 10 MHz depending on SW menu C...

Page 34: ...RF2 RF3 OUT RF4 IN one after the other Cable losses must be corrected Control CRTU Radio Unit Switch generator on and set level to minimum 130 dBm or 90 dBm switch RF wideband analyzer on RF1 RF2 RF4...

Page 35: ...setup TX5 no external trigger Analyzer Start Stop specified frequency range RBW 100 kHz Control Set CRTU Radio Unit to connector RF3 OUT specified setting frequency level 0 dBm Test The suppression o...

Page 36: ...ut level at RF1 27 dBm analyzer to specified center frequency AM demodulator Test The residual AM with the specified weighting is measured TX Carrier Sideband Suppression Max Distortion The modulation...

Page 37: ...of course it is also possible to use other values for the measurement RX Harmonics Preparation Test setup RX3 Generator fin level 0 dBm Control Set CRTU Radio Unit to connector RF2 Max Level 2 dBm Te...

Page 38: ...level is 10 dBm RBW 100 Hz Phase noise measured value 10 dB 21 dB RX Residual FM AM Preparation Test setup RX4 Generator fiCRTU Radio Unit level 20 dBm Control Set CRTU Radio Unit to connector RF4 IN...

Page 39: ...Sync Pattern gsm_bts0 training sequence GSM0 Trigger Sync Offset 60 symbols Test Phase rms and peak and frequency errors are measured according to GSM recommendation RX GSM Demodulation Only with opti...

Page 40: ...st programs see the Software Manual for Operational Software CR02P2P Auxiliary equipment for verifying the GSM protocol test functionality Item Required Equipment R S Article Name R S Order Number 1 G...

Page 41: ...ake sure that the Test SIM configuration within SetCfg tool is set so that it matches the Test SIM you are using by default CRT Z2 Phase 2 SIM card MTC Audio Path Test Run AUD_CALL with parameter FR F...

Page 42: ...yed or If a CRTU G is detected as a CRTU S the CRTU K5 software option 1139 9106 02 must be installed For the installation procedure you have to distinguish which version of CRTU RU software is presen...

Page 43: ...passed Adjusting 5 V DC REFERENCE VOLTAGE Chapter 2 4 999 5 001 mV Adjusting TCXO 10 MHz at RF3 OUT 1 GHz if none option CRTU B2 is not installed Chapter 2 50 50 Hz Adjusting CRTU B2 OCXO 10 MHz at RF...

Page 44: ...ing time F1 2200 MHz F2 2100 MHz to 1 kHz 400 s TX frequency settling time F1 100 MHz F2 2200 MHz to 1 kHz 400 s TX frequency settling time F1 2000 MHz F2 100 MHz to 1 kHz 400 s VSWR VSWR RF1 10 MHz V...

Page 45: ...dBc TX 3rd harmonic at RF2 at carrier frequency 2200 MHz 30 dBc TX 2nd harmonic at RF3 OUT at carrier frequency 10 MHz 20 dBc TX 2nd harmonic at RF3 OUT at carrier frequency 900 MHz 20 dBc TX 2nd harm...

Page 46: ...from carrier 40 dBc TX In band spurious CRTU setting 894 5 MHz search freq 5 500 kHz from carrier 40 dBc TX In band spurious CRTU setting 1930 5 MHz search freq 5 500 kHz from carrier 40 dBc TX In ba...

Page 47: ...40 dBc TX fixed spurious CRTU setting 501 87 MHz search freq 501 37 MHz Level 20 dBm 40 dBc TX fixed spurious CRTU setting 1330 1 MHz search freq 1329 6 MHz Level 0 dBm 40 dBc TX fixed spurious CRTU...

Page 48: ...dBc TX fixed spurious CRTU setting 1199 MHz search freq 1817 12 MHz Level 10 dBm 40 dBc TX fixed spurious CRTU setting 1201 MHz search freq 842 08 MHz Level 10 dBm 40 dBc TX fixed spurious CRTU settin...

Page 49: ...etting 1900 MHz search freq 1684 16 MHz Level 10 dBm 40 dBc TX fixed spurious CRTU setting 1900 MHz search freq 2742 08 MHz Level 10 dBm 40 dBc TX fixed spurious CRTU setting 2199 MHz search freq 842...

Page 50: ...f 1990 kHz 110 dBc TX SSB phase noise f 2200 MHz f 20 kHz 100 dBc TX SSB phase noise f 2200 MHz f 250 kHz 110 dBc TX SSB phase noise f 2200 MHz f 400 kHz 110 dBc TX SSB phase noise f 2200 MHz f 1990 k...

Page 51: ...z fRF 1000 MHz 40 dBc TX Modulation characteristics carrier suppression fmod 135 kHz fRF 1000 MHz 40 dBc RX Harmonics RX 2nd harmonic at RF2 fIN 50 MHz CRTU frequency 100 MHz RX harmonics 30 dBc RX 2n...

Page 52: ...t spurious response at RF2 fIN 421 5425 MHz CRTU frequency 200 MHz 50 dBc RX inherent spurious response at RF2 fIN 908 0575 MHz CRTU frequency 300 MHz 50 dBc RX inherent spurious response at RF2 fIN 6...

Page 53: ...inherent spurious response at RF2 fIN 908 0575 MHz CRTU frequency 2200 MHz 50 dBc RX inherent spurious response at RF2 fIN 605 3716667 MHz CRTU frequency 2200 MHz 50 dBc RX inherent spurious response...

Page 54: ...t spurious response at RF4 IN fIN 2200 MHz CRTU frequency 191 9425 MHz 50 dBc RX inherent spurious response at RF4 IN fIN 1671 5425 MHz CRTU frequency 1250 MHz 50 dBc RX inherent spurious response at...

Page 55: ...noise at RF2 f 945 MHz f 400 kHz 118 dBc Hz RX SSB phase noise at RF2 f 945 MHz f 1990 kHz 118 dBc Hz RX SSB phase noise at RF2 f 1850 MHz f 20 kHz 100 dBc Hz RX SSB phase noise at RF2 f 1850 MHz f 2...

Page 56: ...rms 50 Hz RX Residual FM at 1900 MHz at RF4 IN 20 dBm 30Hz to 15 kHz peak 200 Hz RX Residual FM at 1900 MHz at RF4 IN 20 dBm CCITT rms 5 Hz RX Residual AM at 1900 MHz at RF4 IN 20 dBm CCITT rms 0 02...

Page 57: ...m f 2700 MHz 95 dBc RX average noise level RF1 RBW 1 kHz expPow 10 dBm f 10 MHz 100 dBc RX average noise level RF1 RBW 1 kHz expPow 10 dBm f 500 MHz 100 dBc RX average noise level RF1 RBW 1 kHz expPow...

Page 58: ...dBm f 2700 MHz 68 dBc RX average noise level RF4 IN RBW 1 kHz expPow 22 dBm f 10 MHz 100 dBc RX average noise level RF4 IN RBW 1 kHz expPow 0 dBm f 500 MHz 100 dBc RX average noise level RF4 IN RBW 1...

Page 59: ...1 59 73 95 106 117 Tolerance See data sheet Base Unit RF Generator See data sheet GSM Specification RF Generator TX Generator level error at RF3 OUT measurement on frequency cal points Frequency MHz 1...

Page 60: ...ication RF Analyzer RX Power meter wideband level error at RF1 measurement on frequency cal points Frequency in MHz 50 100 200 300 400 500 600 700 800 1000 1100 1200 1300 1400 1500 1600 1700 2000 2100...

Page 61: ...or at 921 MHz rms 1 1 X K21 TX GSM frequncy error at 921 MHz 15 15 Hz X K21 TX GSM phase error at 960 MHz peak 4 4 X K21 TX GSM phase error at 960 MHz rms 1 1 X K21 TX GSM frequency error at 960 MHz 1...

Page 62: ...X K20 RX GSM phase error at 486 MHz peak level 14 dBm 2 2 X K20 RX GSM phase error at 486 MHz rms level 14 dBm 0 6 0 6 X K20 RX GSM frequency error at 486 MHz level 14 dBm 10 10 Hz X K21 RX GSM phase...

Page 63: ...10 Hz X K24 RX GSM phase error at 824 MHz peak level 5 dBm RX Demodulation 2 2 X K24 RX GSM phase error at 824 MHz rms level 5 dBm 0 6 0 6 X K24 RX GSM frequency error at 824 MHz level 5 dBm 10 10 Hz...

Page 64: ......

Page 65: ...t 2 1 Measuring Instruments and Auxiliary Equipment 2 1 Preparing the Instrument 2 2 Adjusting the 5 VDC Reference Voltage 2 2 Adjusting the 10 MHz Reference Frequency 2 2 TCXO 2 3 OCXO REFERENCE OSC...

Page 66: ......

Page 67: ...ments must be performed at an ambient temperature between 23 C and 26 C after the instrument has warmed up After the software controlled adjustment has been performed the CRTU Radio Unit is ready for...

Page 68: ...using a small screwdriver Adjusting the 5 VDC Reference Voltage Preparation Connect the DC voltmeter test cable to the SMB plug X221 on the motherboard Switch on the CRTU Radio Unit and allow it to wa...

Page 69: ...s not installed OCXO REFERENCE OSC CRTU B2 if option is installed Adjustment Note Use potentiometer R5 on the OCXO REFERENCE OSC BOARD to adjust the measured value at the frequency counter to 10 000 0...

Page 70: ...tment Replacement of module s Replace the faulty module s see chapter 3 module replace ment Close the CRTU Radio Unit casing see chapter 3 module replacement Connect the CRTU Radio Unit to the mains a...

Page 71: ...ooling system 3 13 Control and supply 3 13 Complete function 3 13 Transmitter function 3 14 Receiver function 3 14 DSP 56301 Modules 3 14 DSP 56311 Modules 3 14 Option MAC SPEECH CRTU B6 3 14 Cooling...

Page 72: ...le 3 27 Installing the new memory module and completing the instrument 3 27 Putting into operation 3 27 Replacing the LCD and or DC AC Converter in the FRONT MODULE 3 28 Opening the instrument and rem...

Page 73: ...pening the instrument and removing the option OCXO REFERENCE OSC 3 41 Installing the new option OCXO REFERENCE OSC and completing the instrument 3 41 Manual OCXO adjustment 3 41 Replacing the Option L...

Page 74: ...instrument frame 3 51 REARPANEL BOARD Interface Board for Further Connectors at the Rear of the Instrument Frame 3 51 Troubleshooting 3 52 Troubleshooting using the LEDs H1 to H9 on the MOTHERBOARD 3...

Page 75: ...erview of the CRTU Radio Unit design refer to the block diagram below and the exploded views in Chapter 5 The function description of the instrument in the present chapter refers to the block diagram...

Page 76: ...8 M H z D IV 3 D D S D D S V C O 84 to 16 8M H z V C O 84 to 16 8M H z D IV 2 4 D IV 2 4 N E T C L K 2 2 1 to 8 4 M H z N E T C L K 1 2 1 to 8 4 M H z 1 1 0 8M 2 R121 1 1 0 8M 1 1 1 0 8M 3 5VREF R120...

Page 77: ...e easily replaced A further rear panel that is screwed to the frame serves as support for further electrical interfaces and optional extensions Front of Instrument Frame The front of the instrument fr...

Page 78: ...e controlled axial fan 80 mm x 80 mm x 25 mm with a separate air circulation The fan sucks in cold air on the left rear side of the power supply casing and blows out the heat produced in the power sup...

Page 79: ...LEDs it is controlled in a special microprocessor on the controller board by means of a matrix technique The STANDBY ON key is handled by the computer s ATX functionality Spinwheel The spinwheel cons...

Page 80: ...the AC Supply is installed on the rear panel of the POWER SUPPLY From there the AC supply voltage is internally taken to the first board via two cables Two fuses are also fitted there as a means of f...

Page 81: ...protect against external overvoltages of the interface signals Nine LEDs indicate the status of the supply voltages and help with troubleshooting On MOTHERBOARD1 a circuit for temperature dependent in...

Page 82: ...nnector REF IN at the rear of the CRTU Radio Unit as reference signal At the BNC connector REF OUT1 at the rear of the CRTU Radio Unit either the internal 10 MHz reference frequency or the signal appl...

Page 83: ...s installed is equipped with cooling fins in a special cooling duct and an extra temperature controlled fan for heat dissipation if high RX power is fed in Control and supply Control and supply of the...

Page 84: ...neighboring modules This efficient cooling is required since a very high degree of integration and a large portion of fast RF components are implemented on this board Control and supply Control and vo...

Page 85: ...uency oscillator shared with the transmitter and an extra LO3RX with a very small tuning range All LOs are synchronized by the MMCX connector 110 8 MHz at the bottom of the module with the reference f...

Page 86: ...ing filtering and down converting the digital IF internally and for the LINKHANDLER1 2 Besides two programmable logic devices FPGA are used on the DIGITAL BOARD which provide address decoding interrup...

Page 87: ...are generated On the receive side digital IQ signals or magnitude and phase are expected Design The LINKHANDLER is designed as a HVC2000 plug in module The HVC2000 cabinet is equipped with a screwed o...

Page 88: ...SPEECH CRTU B6 The MAC SPEECH board constitutes the MAC RLC layer for GPRS and EGPRS It also provides the speech coder decoder functionality including audio digital analog conversion and amplifying Th...

Page 89: ...ctors IQ IN OUT CH1 and IQ IN OUT CH2 on the rear panel The board is divided into 4 parts RX1 IQ IN and OUT RX2 IQ IN and OUT TX1 IQ IN and OUT and TX2 IQ IN and OUT This strict separation of the func...

Page 90: ...with additional monitoring of the IQ OUT signal at pins TXxIOUT and TXxQOUT of the IQ IN OUT CHx connectors Alternatively it is possible to feed out the IQ data via IQ IN OUT CHx and to modulate the...

Page 91: ...beling panel next to the spinwheel and pull off the labeling panel towards the front Unscrew all three countersunk screws in the front frame at the top and all four countersunk screws at the bottom of...

Page 92: ...Unit If necessary load new software to the FRONT MODULE see chapter 4 Firmware update Boot up within BootMagic menu into DOS OPSW Service or Service WCDMA During startup observe the display When three...

Page 93: ...T MODULE from the rear to the front using little pressure Note Note the three ribbon cables for the PCMCIA INTERFACE that are still connected to the MOTHERBOARD1 After sliding out the FRONT MODULE dis...

Page 94: ...Radio Unit Complete the instrument without causing damage to the cables Putting into operation BIOS update Connect the instrument to the mains Connect the external keyboard to an USB connector of the...

Page 95: ...nt slightly shift towards the right and lift off Slightly push the FRONT MODULE from the rear to the front using little pressure Note Note the three ribbon cables for the PCMCIA INTERFACE that are sti...

Page 96: ...Install the old PCMCIA INTERFACE in the FRONT MODULE in the reverse order Install the FRONT MODULE in the CRTU Radio Unit in the reverse order Note Make sure to route the cables of the PCMCIA INTERFAC...

Page 97: ...the top left instrument frame slightly lift the cover at the top of the instrument slightly shift towards the right and lift off Remove the ribbon cable from the hard disk to the FRONT MODULE CONTROLL...

Page 98: ...startup menu into 2 DOS Start the BootMagic software by typing BM Check the BootMagic Enabled box and make sure that the menu name Windows OPSW is set as the default system Click on the Save Exit butt...

Page 99: ...m copy the file REG_INFO DAT which has been saved from the exchanged hard disk to the path C CONFIG Boot up within BootMagic menu into DOS OPSW Service and make sure that the currently valid version o...

Page 100: ...e size of the memory modules For replacement proceed as follows Opening the instrument and removing the FRONT MODULE Switch off the instrument pull the power plug unscrew the rear panel feet Place the...

Page 101: ...nto the slot slightly press towards the rear and engage the brackets on the sides Note The memory modules can be obtained with the size 256 MB spare part list Current No 290 It is possible to insert t...

Page 102: ...e support for support of the PCMCIA INTERFACE After unscrewing the two countersunk screws at the top left instrument frame slightly lift the cover at the top of the instrument slightly shift towards t...

Page 103: ...the new LCD and or DC AC converter and completing the instrument Insert new LCD and or DC AC converter in the reverse order connect all connecting cables in the correct position and replace all screws...

Page 104: ...right and lift off Slightly push the FRONT MODULE from the rear to the front using little pressure Note Note the three ribbon cables for the PCMCIA INTERFACE that are still connected to the MOTHERBOAR...

Page 105: ...nt to the mains and switch on The built in FRONT MODULE CONTROLLER registers on the LCD and starts the operating software Replacing the Labeling Panel on the FRONT MODULE see chapter 5 spare part list...

Page 106: ...rsunk screws at the top left instrument frame slightly lift the cover at the top of the instrument slightly shift towards the right and lift off Slightly push the FRONT MODULE from the rear to the fro...

Page 107: ...instrument Insert the RF FRONTEND into the instrument in the reverse order and connect all cables Complete the instrument without causing damage to the cables Connect the instrument to the mains Conne...

Page 108: ...in the reverse order and connect all MMCX plug in cables Perform manual adjustment 5 VDC reference voltage and TCXO adjustment as described in chapter 2 Complete the instrument without causing damage...

Page 109: ...reverse order and carefully connect all the MMCX plug in and RF SMA coax cables Complete the instrument without causing damage to the cables Connect the instrument to the mains Connect the external k...

Page 110: ...unscrew all screws of the RXTX aluminum cover shells Then the cover shells of the top and bottom can be removed Pull off the sandwich module TR CORRECTION MODULE using a pull out tool from the RXTX BO...

Page 111: ...ver at the instrument top slightly push to the right and lift off Pull off all the MMCX plug in cables using a pull out tool from the top of the DIGITAL BOARD and pull off the module towards the top u...

Page 112: ...nd the CRTU Radio Unit is ready for use and complies with the specifications except for the high precision level accuracy In order to achieve the level accuracy as described in the data sheet a so cal...

Page 113: ...trument top slightly push to the right and lift off Pull off all the MMCX plug in cables using a pull out tool from the top of the DIGITAL BOARD and pull off the module towards the top using the two l...

Page 114: ...tioned menu item The automatic module data adjustment is performed under software control firmware updates for microprocessors and programmable devices being performed as well This may take a few minu...

Page 115: ...the instrument onto the left side locate the option OCXO see chapter 5 explosion drawing 1138 4000 01 D sheet 2 and unscrew the two combi screws on the module support and one combi screw on the MOTHER...

Page 116: ...gh these holes and the module As the board does not consume very much power cover one of the two rows of holes towards the fan with a tape to reduce the air flow through the LINKHANDLER and reserve th...

Page 117: ...left Take off the cover on the higher side B side by loosening the cover screws Carefully unscrew and take out the respective sandwich module see chapter 5 drawing 1135 5406 01 D sheet 2 Installing th...

Page 118: ...formed under software control firmware updates for microprocessors and programmable devices being performed as well This may take a few minutes After the adjustment has been terminated the operating s...

Page 119: ...ong cooling flow through these holes and the module As the board does not consume very much power cover one of the two rows of holes towards the fan with a tape to reduce the air flow through the MAC...

Page 120: ...ightly shift towards the right and lift off Pull off all MMCX plug in cables using a pull out tool and the flat ribbon cables from the top of the MAC SPEECH Take out the option using the two levers on...

Page 121: ...nd completing the instrument Insert the new option IQIF BOARD into the instrument in the reverse order Complete the instrument without causing damage to the cables Connect the instrument to the mains...

Page 122: ...onto the front carrying handles push the tube upwards and take off Place the instrument onto the left side and locate the fan connecting cable Coming from the air duct the cable leads to connector X2...

Page 123: ...osen all connecting cables to the boards then lever out all boards as described above using the two levers at the right and at the left Likewise remove the POWER SUPPLY and the FRONT MODULE disconnect...

Page 124: ...e order Complete the instrument without causing damage to the cables Connect the instrument to the mains and switch on FRONTPANEL BOARD1 at the front of the instrument frame Opening the instrument and...

Page 125: ...strument to the mains and switch on REARPANEL BOARD Interface Board for Further Connectors at the Rear of the Instrument Frame Opening the Instrument and removing the REARPANEL BOARD Switch off the in...

Page 126: ...n measuring voltages For simple troubleshooting the CRTU Radio Unit provides the following tools Nine green LEDs H1 to H9 at the bottom of MOTHERBOARD1 which indicate the operating voltages A SELFTEST...

Page 127: ...Y ON key pressed and green LED 5 2 V operating voltage illuminated below the front of the CMU Yes Yes Yes Yes Provide appropriate AC supply voltage Plug in mains cable Set mains switch to position 1 N...

Page 128: ...es and repeat test Faulty module found Yes POWER SUPPLY or MOTHERBOARD faulty No Respective module faulty Fault Instrument fan does not work 12 VFAN voltage present LED H5 at MOTHERBOARD illuminated P...

Page 129: ...all measured values are indicated Selftest instrument for diagnostic voltages passed failed with error output is only indicated Selftest Module RF FRONTEND for diagnostic voltages in this case all me...

Page 130: ...for RF FRONTEND All measured values are indicated Diagnostic voltages for MODULE REFERENCE BOARD All measured values are indicated Diagnostic voltages for DIGITAL BOARD All measured values are indicat...

Page 131: ...N hardkey All diagnostic voltages within permissible limits deviations marked red Yes Connect ext reference source with correct frequency Ext reference source selected but not connected to REFIN Int r...

Page 132: ...ARD DIGITAL BOARD MMCX cable W33 DIG diag adc cal error Calibration error of the diagnosis AC DC converter DIGITAL BOARD FE pow adc cal error Calibration error of the power meter AC DC converter RF FR...

Page 133: ...le W17 AUC MODULE1 2 TXDSP MODULE1 2 Setting frequency in the signalling test faulty LINKHANDLER1 2 DIGITAL BOARD Setting level in the module test faulty RF FRONTEND SMA cable W13 RXTX BOARD1 2 TR COR...

Page 134: ...ed frequency in the signalling test faulty LINKHANDLER1 2 DIGITAL BOARD Received level in the module test faulty RF FRONTEND SMA cable W14 RXTX BOARD1 2 TR CORRECTION MODULE1 2 MMCX cable W19 ADC MODU...

Page 135: ...Partition Structure 4 2 New Partition Structure 4 3 Maintaining and Restoring Hard Disk Partitions 4 5 Images Provided Ex Factory Stdimage 4 6 Updating Factory Images 4 6 Creating User Specific Images...

Page 136: ......

Page 137: ...perating manual for CRTU G S and CRTU W The software packages are stored in different partitions of the CRTU RU hard disk and can be booted separately in the BootMagic startup menu see Table 4 1 on p...

Page 138: ...6 format 2 MAINTAIN partition 102 MB FAT16 format 3 CRTU_OS partition 1 47 GB NTFS format 4 Extended partition 16 75 GB The extended partition contains two logical drives 1 IMAGES drive 9 77GB FAT32 f...

Page 139: ...rational software and test packages CRTU_OS New Partition Structure The hard disk with the new structure of a CRTU Radio Unit is divided into 4 partitions 1 SERV_WCDMA partition 1 99 GB FAT format 2 M...

Page 140: ...sible SERV_WCDMA C If the Maintenance backup partition is booted the following drives will be visible MAINTAIN C PCMCIA Card 1 D right slot PCMCIA Card 2 E left slot If the Windows OPSW partition is b...

Page 141: ...ure Start Drive Image Connect the instrument to the mains Connect the external USB keyboard and USB mouse to an USB connector of the CRTU Radio Unit Switch on the CRTU Radio Unit Select the Maintenanc...

Page 142: ...ervice partition image must be recreated service pqi resp SERV3_21 PQI Creating User Specific Images Please refer to the original Drive Image documents provided with the CRTU Radio Unit to learn how t...

Page 143: ...ervice software module of the BootMagic startup menu During startup observe the display When three BEEPS can be heard press the softkey to the left upper side of the LCD C will appear Insert a flash d...

Page 144: ...hapter 2 Automatic Adjustment of Module Data The CRTU Radio Unit is always supplied with the latest software version including the VersionManager Note The newest CRTU software is also available for do...

Page 145: ...to keep several software versions stored on the internal hard disk of the CRTU Radio Unit and reload them if required using the VersionManager To this end proceed as follows Switch on the CRTU RU Afte...

Page 146: ...they are available whenever they are required Caution Disconnect the instrument from the mains before opening the casing Also note the safety instructions at the beginning of this manual The component...

Page 147: ...Radio Unit R S CRTU RU Contents of Chapter 5 1140 0050 82 I 5 1 E 4 Contents 5 Documents 5 1 Module and Cable Exchange 5 1 List of Spare Parts for CRTU Radio Unit 5 5 Drawings 5 13...

Page 148: ......

Page 149: ...see component lists in this chapter Designation Component number according to component list Number of pieces Instrument type the replacement part belongs to Contact person for possible questions Rep...

Page 150: ...ed the part A returned accompanying document is provided with each replacement module Table 5 1 List of power cables available Stock No Earthed contact connector Preferably used in DS 006 7013 BS1363...

Page 151: ...1140 0050 82 5 3 E 4 Overview of Spare Parts for CRTU Radio Unit...

Page 152: ......

Page 153: ...No 10 Instrument frame 1090 9221 00 20 Instrument fan 1091 1001 00 30 Instrument fan cover 1091 0840 00 40 Cover 1100 0872 00 50 Maintenance label 1138 4352 00 60 Part of the mounting plate 1138 4346...

Page 154: ...0852 1086 00 240 DC AC converter 0048 6996 00 T 13 250 Converter connector 1091 2643 00 W 13 260 Panel 1090 9538 00 270 FRONT MODULE CONTROLLER Var 16 1091 2520 00 A 4 280 Lithium battery CR 2032 085...

Page 155: ...E1 1100 2500 02 A 760 440 AUC MODULE2 1100 2500 02 A 780 450 TXDSP MODULE1 1100 2100 03 A 750 460 TXDSP MODULE2 1100 2100 03 A 770 470 ADC MODULE1 1100 2200 02 A 720 480 ADC MODULE2 1100 2200 02 A 740...

Page 156: ...MODULE 56301 1135 5506 03 573 DSP MODULE 56301 1135 5506 03 575 FLAT RIBBON CABLE 1138 4452 00 576 FLAT RIBBON CABLE 1138 4469 00 CRTU B6 MAC SPEECH 1139 0280 02 580 MAC SPEECH 1135 5793 02 A9 590 MAC...

Page 157: ...W 518 720 RF cable 1139 0167 00 W 519 730 RF cable 1139 0173 00 W 521 740 RF cable 1139 0373 00 W704 750 RF cable 1100 3894 00 W 5 760 RF cable 1100 3907 00 W 6 770 RF cable 1138 4481 00 W 7 780 RF c...

Page 158: ...1100 4155 00 W 31 950 RF cable 1100 4161 00 W 32 960 RF cable 1100 4178 00 W 33 970 RF cable 1100 4190 00 W 35 980 RF cable 1100 4203 00 W 36 990 RF cable 1100 4210 00 W 37 1000 RF cable 1138 5707 00...

Page 159: ...ts for CRTU Radio Unit 1140 0050 82 5 11 E 4 Current No Designation Stock No Electr No 1100 Screw 1096 4780 00 1110 Rear panel foot 1096 2493 00 1120 Instrument foot 1096 2506 00 1130 Carrying handle...

Page 160: ...PGA A D DDC RX DSP ADC Module DDC Module C o rre c P roc RX IF TX IF RXTX Board Channel 2 I Q I Q Control FIFO AUC Module DIGITAL Board MAC DSP MULTI DSP Board Codec Aud DSP Aux Aud DSP Master SSI SSI...

Page 161: ...1140 0050 82 5 13 E 3 Drawings of all Radio Unit R S CRTU RU Modules...

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Page 168: ...1140 0050 82 6 1 E 3 Circuit Diagrams for Radio Unit R S CRTU RU...

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Page 212: ...nterface 1 10 Image software 4 5 Instrument design 3 1 Instrument frame 3 3 Interface test IEC bus 1 8 RS 232 1 8 L LCD FRONT Module 3 5 Linkhandler Communication 1 10 Loudspeaker 3 3 M MAC SPEECH CRT...

Page 213: ...elftest 1 7 Service kit CRTU Z3 1 10 Software structure 4 1 update 4 1 Software Update CRTU RU MS software 4 8 Spare parts order 5 1 Spinwheel FRONT Module 3 5 STANDBY circuit POWER SUPPLY 3 6 STANDBY...

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