AR 10052412 Operating And Service Manual Download Page 29

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Model 5000A225C

•

5 kW

•

.01-225 MHz

AR RF/Microwave Instrumentation • 160 Schoolhouse Rd, Souderton, PA 18964

To order AR Products, call: 215.723.8181. For an applications engineer, call: 800.933.8181. Direct to Service call: 215.723.0275 or email:

[email protected]

For Faxing Orders: 866.859.0582 (Orders Only Please) [email protected]

Approved for public release by AR RF/Microwave Instrumentation ISO 9001:2015 Certified • ISO 17025:2017 Accredited

Revision 082222

TYPICAL INPUT VSWR

TYPICAL NOISE FIGURE

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1.2

1.3

1.4

1.5

1.6

1.7

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1.9

VSW

Freq. (MHz)

gur

e (

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Freq. (MHz)

Summary of Contents for 10052412

Page 1: ...Operating and Service Manual 5000A225C Model 10052413 High Voltage 10052412 Low Voltage Part Number Serial Number 160 Schoolhouse Road Souderton PA 18964 215 723 8181 Fax 866 859 0582 www arworld us ...

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Page 3: ...or Measurement Control and Laboratory Use Part 1 General Requirements CAN CSA C22 2 61010 1 Issued 2012 05 11 Ed 3 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements HAZARDOUS SUBSTANCES RoHS DIRECTIVE 2011 65 EU of the European Parliament and of the Council of 8 June 2011 on the restriction of the use of certain hazardous substances...

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Page 5: ...en Minimalwerte der Schirmdämpfung und Filterung in den unterschiedlichen Leistungsklassen empfohlen Hochfrequenzleistung min Schirmdämpfung 100 Watt 50 dB 101 1000 Watt 60 dB 1001 10 000 Watt 70 dB Falls andere elektrische oder elektronische Geräte gleichzeitig mit dem Gerät betrieben werden kann es zu Beeinflussungen kommen Da das Gerät zur Erzeugung von Hochfrequenzenergie dient ist es daher au...

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Page 7: ... clearance on all vented sides of the equipment to permit the airflow required for proper ventilation Do not restrict airflow into the equipment by blocking any vents or air intakes Restricting airflow can result in damage to the equipment intermittent shut downs or safety hazards Keep equipment away from extremely hot or cold temperatures to ensure that it is used within the specified operating r...

Page 8: ...na assembly may be heavy requiring two persons to lift Use caution when installing or removing unit Follow all equipment setup and lifting instructions specified in this document Ensure connectors are appropriate for intended operation Connectors are specified in the user manual and product specification sheet Do not exceed the maximum RF input level stated in the specifications Refer to the user ...

Page 9: ...von 10 2 cm 4 in auf allen belüfteten Seiten des Geräts ein um eine ausreichende Luftzirkulation zu gewährleisten Beinträchtigen Sie den Luftstrom des Geräts nicht indem Sie Lüftungsöffnungen oder den Lufteinlass blockieren Wird der Luftstrom eingeschränkt kann dies zu Schäden am Gerät periodischen Abschaltungen und anderen Gefahren führen Halten Sie das Gerät von extrem heißen oder kalten Tempera...

Page 10: ...n in diesem Dokument angegebenen Anweisungen zur Anbringung Stellen Sie sicher dass alle Anschlüsse für den beabsichtigten Betrieb geeignet sind Informationen zu den Anschlüssen erhalten Sie im Benutzerhandbuch und im Produktspezifikationsblatt Überschreiten Sie nicht den in Spezifikationen angegebenen maximalen HF Eingangspegel Informationen zum geeigneten HF Pegel erhalten Sie im Benutzerhandbuc...

Page 11: ...imitez pas le flux d air allant dans l équipement en bloquant tout évent ou entrée d air La restriction du flux d air peut endommager l équipement causer des coupures intermittentes ou des dangers pour la sécurité Tenez l équipement à l écart de températures extrêmement chaudes ou froides pour veiller à ce qu il soit utilisé dans la plage de fonctionnement indiquée Lorsque vous installez des acces...

Page 12: ...z prudent lorsque vous installez ou retirez l unité Respectez toutes les instructions concernant l installation et le levage de l équipement indiquées dans ce document Assurez vous que les connecteurs sont appropriés pour l utilisation prévue Les connecteurs sont indiqués dans le manuel d utilisation et la fiche signalétique du produit Ne dépassez pas le niveau d entrée RF maximal indiqué dans les...

Page 13: ...g is voor goede ventilatie mogelijk te maken Belemmer de luchtstroom in het apparaat niet door ventilatieopeningen of luchtinlaten te blokkeren Het belemmeren van de luchtstroom kan leiden tot schade aan het apparaat onregelmatige uitvallen of veiligheidsrisico s Houd het apparaat uit de buurt van extreem hoge of lage temperaturen om ervoor te zorgen dat het apparaat binnen het gespecificeerde wer...

Page 14: ...instellen en optillen van de apparatuur die in dit document worden vermeld Zorg ervoor dat de connectoren geschikt zijn voor de beoogde werking De connectoren worden gespecificeerd in de gebruikershandleiding en in het productspecificatieblad Overschrijd het maximale RF ingangsniveau niet dat in de specificaties is vermeld Raadpleeg de gebruikershandleiding en het productspecificatieblad om de toe...

Page 15: ...ommunications Ports 10 2 4 Inputs and Outputs 11 2 4 1 RF Input 11 2 4 2 RF Output 11 2 4 3 IEEE 488 USB and RS 232 Interfaces 11 2 4 4 Safety Interlock Connector 11 2 5 Amplifier Operation 12 2 5 1 Local Operation 12 2 6 Local User interface 12 2 6 1 Menu Map 12 2 6 2 Inhibit Screen 13 2 6 3 Main Menu Screen 13 2 6 4 Select Screen 14 2 6 5 Mode Screen 14 2 6 6 User Screen 15 2 6 7 Breakout Firmwa...

Page 16: ...r Query 33 2 8 6 16 Reverse Power Query 34 2 8 6 17 Operating Hours RF ON Query 34 2 8 6 18 Operating Hours Power ON Query 34 2 8 6 19 Faults Query 34 2 8 6 20 Reset Faults 35 2 8 6 21 Read Fault Log 35 2 8 6 22 Read Fault Count 35 2 8 6 23 Clear Fault Log 36 2 8 6 24 Remote Operating Timeout ROPTO 36 2 8 6 25 ALC Board Firmware Query 36 2 8 6 26 SBB Piggyback Firmware Query 37 2 8 6 27 SBB Optica...

Page 17: ...through PS12 Fault 47 4 3 6 Amplifier Faults Schematic 10039874 10045132 47 4 3 7 ALC Fault 47 4 3 8 Low or No Power Output DC Tests Schematic 10052498 LV 10052499 HV 48 4 3 9 Low or No Power Output RF Test 49 4 4 Locating and Replacing Modules 50 Appendix A Installing Software Upgrades 53 FIGURES 1 1 5000A225C AC Line Cord Installation 2 2 1 Model 5000A225C Front Panel 8 2 2 Model 5000A225C Rear ...

Page 18: ...Model 5000A225C ii ...

Page 19: ...ment of the amplifier s RF Gain during CW mode operation and provides graphical displays of the amplifier s Forward and Reflected power levels RF Output Level Protection A General Purpose Interface Bus GPIB IEEE 488 2 interface for remote control of the amplifier s operating functions RS232 serial communications including both wire and fiber optic ports for remote control USB Communication port fo...

Page 20: ...er input of 200 240 VAC 47 63Hz three phase Delta 4 wire Wye compatible A 70 amp or greater common trip circuit breaker should be used to supply power to the 5000A225C low voltage model Included with the low voltage model is a 15 foot 4 7 meters four conductor harmonized line cord consisting of three phase wires brown black and grey and a protective GND conductor green yellow The power cord is lef...

Page 21: ... mode without a load connected to the output connector is not recommended 1 4 3 RF Sample Ports The Forward and Reverse power sample port connectors are Type N female and can be located on the front or rear of the amplifier depending on ordered configuration Cables and equipment connected to these ports should exhibit resistive 50Ω impedance throughout the band The sample ports are normally used f...

Page 22: ...Model 5000A225C 4 Rev A ...

Page 23: ... RF power Protection from input overdrive beyond 0 dBm is provided as well as protection from various failure conditions including over temperature and power supply faults A front panel display indicates the operational status and fault conditions All amplifier control functions and status indications are available remotely using GPIB IEEE 488 RS 232 fiber optic serial USB or Ethernet Interface co...

Page 24: ...3dB 4000 4500 5000 W Power Output 3dB Compression 150 225 MHz P3dB 3750 4250 4500 W Power Output 1dB Compression 0 01 100 MHz P1dB 4000 5000 5500 W Power Output 1dB Compression 100 150 MHz P1dB 3000 4000 4500 W Power Output 1dB Compression 150 225 MHz P1dB 2750 3250 3500 W Operating Frequency BW 0 01 225 MHz Gain Small Signal 67 dB Gain Reduction Adjustment when below gain compression 0 20 dB Flat...

Page 25: ... may limit output reflected power to 50 of minimum rated power 50 AC Power 3 phase Low voltage option 200 240 VAC AC Power 3 phase High voltage option 380 415 VAC AC Power 47 63 Hz Ambient Temperature 5 25 35 C Storage Temperature 20 50 C Altitude 2000 m Shock Vibration Normal Truck Transport Mechanical Specifications Parameters Unit Dimensions W x H x D 35U Rack 57 4 x 181 x 95 5 cm 22 6 x 71 25 ...

Page 26: ... pin female RS 232 9 pin subminiature D female RS 232 fiber optic ST USB 2 0 Type B Ethernet RJ 45 Interlock 15 pin subminiature D female AC Input 5 meter harmonized power cord supplied with amplifier The power cords are left open ended to allow for facility power connection of user s choice Ordering Options 5000A225C N R 158 Model RF IN Conn Location Type RF OUT Conn Location Type RF Sample Ports...

Page 27: ... MHz ARRF MicrowaveInstrumentation 160SchoolhouseRd Souderton PA18964 215 723 8181 info arworld us www arworld us ISO9001 2015Certified ISO17025 2017Accredited 5 TYPICAL OUTPUT POWER LINEAR FORMAT TYPICAL OUTPUT POWER LOG FORMAT ...

Page 28: ...trumentation 160SchoolhouseRd Souderton PA18964 215 723 8181 info arworld us www arworld us ISO9001 2015Certified ISO17025 2017Accredited 6 TYPICAL SMALL SIGNAL GAIN 20dBm INPUT TYPICAL HARMONICS 3750 WATTS 70 60 50 40 30 20 10 0 dBc Freq MHz 2nd 3rd ...

Page 29: ...ct to Service call 215 723 0275 or email service arworld us For Faxing Orders 866 859 0582 Orders Only Please info arworld us Approved for public release by AR RF Microwave Instrumentation ISO 9001 2015 Certified ISO 17025 2017 Accredited Revision 082222 7 TYPICAL INPUT VSWR TYPICAL NOISE FIGURE 1 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 VSWR Freq MHz 5 6 7 8 9 10 11 12 Noise Figure dB Freq MHz ...

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Page 31: ... mode without a load connected to the output connector is not recommended It has also been designed to withstand without damage RF input power levels up to twenty 20 times its rated input of 1mW However signal levels higher than 20mW or transients with high peak voltages can damage the amplifier Also accidental connection of the Model 5000A225C s output to its input either through direct connectio...

Page 32: ...4 5 Figure 2 1 Digital Control Panel DCP Features Item Title Function 1 RF INPUT RF Input Connector front option 2 POWER POWER control with indicator LED 3 INHIBIT LOCAL REMOTE Keylock Switch 3 position key removal in INHIBIT position only 4 DISPLAY TOUCH SCREEN Numerous parameter values and fault messages plus manual input control 5 ADJUST Adjust knob to change selected variables ...

Page 33: ...1 RF INPUT RF Input Connector rear option 2 SAFETY INTERLOCK Safety Interlock 15 pin DIN connector 3 REMOTE CONTROL GPIB USB RS 232 F O and Ethernet remote control connectors 4 RF SAMPLE PORTS Forward left and Reverse right rear option 5 RF OUTPUT RF Output Connector 6 CB Circuit Breaker ...

Page 34: ... on 2 3 1 3 Adjust Knob The ADJUST knob is used to set the value of several parameters available through the touch screen menu options These parameters are RF Gain ALC Threshold ALC Detector Gain and ALC Response The Select Menu is used to select which parameter the ADJUST knob is able to adjust The range of RF Gain ALC Threshold and ALC Detector Gain is 0 to 100 percent The range of the ALC Respo...

Page 35: ...h position that can be controlled from the front panel When the amplifier is in the Remote mode as determined by the position of the Keylock Switch a special Remote display is shown see Figure 2 3 Front panel controls are deactivated except for the Keylock Switch which can be rotated to LOCAL or INHIBIT in order to prevent remote control commands from being executed Refer to Section 2 6 for inform...

Page 36: ...essing the RF On Off touch screen button 7 Adjust the amplifier s gain by rotating the ADJUST knob 8 In the event of a fault press the RESET touch screen button if the fault does not clear refer to Section 4 3 Troubleshooting of this manual 2 6 LOCAL USER INTERFACE This section describes the user interface used during local operation of the amplifier as it pertains to the control system 2 6 1 Menu...

Page 37: ...currently being displayed Press the Select button to change the value displayed For more information see the Select Screen section below The RF State indicator shows the current RF State as either RF Off or RF On Use the RF On Off button to enable or disable the RF path through the amplifier Next to the RF State indicator is the Calculated VSWR display This display shows the calculated output VSWR...

Page 38: ...or Frequency screen section 2 6 4 Select Screen The Select screen is the same as the Main Menu screen except for the menu options The menu options in this screen allow the user to select what parameter the ADJUST knob can adjust Once a selection is made the screen will automatically change back to the Main Menu screen The blue bar graph and associated value will change to reflect the value of the ...

Page 39: ... the RF On and Power On Operating Hours are displayed A menu option is provided for accessing the settings for the remote I O ports found on the rear of the unit see I O Screen section and for setting the VSWR limit see VSWR Limit section 2 6 7 Breakout Firmware Screen The Breakout Firmware screen is accessed by clicking the More button within the User Screen and shows the firmware revisions for a...

Page 40: ... to the black text at the top of the screen and the grey text in the box will clear Press the BSP button Backspace to remove the last number entered or use the CLR button Clear to clear the entry completely If a frequency is entered that is either above or below the amplifier s specified frequency range the value will be coerced to the upper or lower frequency limit when the ENT button is pressed ...

Page 41: ...B address screen is used to select the GPIB address To get here from the Main Menu touch the User menu button followed by the I O menu button and finally the GPIB menu button Touching any of the buttons labeled 1 to 30 immediately sets the GPIB address to the corresponding value A thin black outline indicates the present GPIB address selection When the back button is pushed the address selection i...

Page 42: ...ack outline indicates the present baud rate selection When the back button is pushed the baud rate selection is stored to non volatile memory Therefore if power is lost prior to hitting the back button any baud rate selection changes will be lost The default baud rate is 19200 2 6 13 Key Beep Screen The Key Beep screen allows the user to turn on or off the audible beep that occurs when a valid tou...

Page 43: ...he screen 2 6 15 Fault Screen The Fault screen will appear anytime that a fault condition is met The name of the fault is shown toward the center of the screen In either LOCAL or REMOTE Keylock switch positions a Reset button will appear allowing local resetting of the fault condition Faults can also be reset remotely If the fault reset is successful the screen will return to the Main Menu or Remo...

Page 44: ...ve of AR RF Microwave Instrumentation Severe damage to the faulting module can occur if the RF is not disabled The amplifier fault diagnostic mode is enabled by navigating to the GPIB address screen User I O GPIB Address and entering the password 3 27 8 10 See figure below The current GPIB address setting will not be lost during this process unless the Back button is pressed before the password is...

Page 45: ...play In addition while in the locked state the Adjust knob is automatically tied to the RF Gain adjustment which remains adjustable regardless of the ALC lockout state To access the ALC lockout feature the user must navigate to the GPIB address screen User I O GPIB Address and enter the password 23 15 5 3 1 See figure below The current GPIB address setting will not be lost during this process unle...

Page 46: ...ptic SBB ASSY stopped communicating C Mounted SBB ASSY failure A52A3 J5 9 0x0020 32 PS3 DC Fault Pwr Supply Failure PS3 A52A3 J5 10 0x0021 33 PS4 DC Fault Pwr Supply Failure PS4 A52A3 J5 11 0x0022 34 PS5 DC Fault Pwr Supply Failure PS5 A52A3 J5 12 0x0023 35 PS6 DC Fault Pwr Supply Failure PS6 A52A3 J5 13 0x0024 36 PS7 DC Fault Pwr Supply Failure PS7 A52A3 J5 14 0x0025 37 PS8 DC Fault Pwr Supply Fa...

Page 47: ...0x040e 1038 Therm A26 Thermal Fault Module A26 A61 J5 30 0x040f 1039 Therm A27 Thermal Fault Module A27 A61 J5 31 0x0410 1040 Therm A28 Thermal Fault Module A28 A61 J5 32 0x0411 1041 Therm A29 Thermal Fault Module A29 2 8 REMOTE OPERATION This section describes remote operation of the amplifier using the provided General Purpose Interface Bus GPIB RS 232 serial port fiber optic serial ports Univer...

Page 48: ...t out on this port The baud rate for the RS 232 port is user selectable from the RS 232 Fiber Optic Serial Baud Rate selection screen For more information see Local User Interface section of this document NOTE This baud rate setting is shared by both the RS 232 port and the Fiber Optic serial port The RS 232 port is setup as a Data Circuit terminating Equipment DCE port When connecting to a Person...

Page 49: ... end and SMA connectors on the other When the amplifier is connected to an IF7001 device the baud rate must be set to 19200 2 8 4 USB Communication The USB port is a USB 2 0 port The cable required to make this connection is a USB 2 0 A B peripheral device cable The cable should be no longer than 5 meters If a longer distance is required a USB hub should be used A cable carrying the official USB l...

Page 50: ...e contact your network administrator for more information about how IP addresses are assigned and maintained If the connected network does not have DHCP enabled then the device can be assigned an IP address using a utility called DeviceInstaller downloaded from www Lantronix com For assistance using this utility please consult the embedded help file installed with the DeviceInstaller utility Once ...

Page 51: ...nd queries must be terminated with a Line Feed Character indicated as LF in subsequent definitions 2 8 6 1 Power On Off This command controls the power state No other command will be accepted until the POWER ON command has been issued It is good practice to wait a minimum of two 2 seconds before polling the status after issuing the POWER ON command Syntax POWER ON OFF Query No see Amplifier State ...

Page 52: ...always be 4 digits wide Example To query the RF Gain send the following command RFG LF Response RFG space 0075 LF 75 Gain 2 8 6 5 Power Indicator Frequency This command sets the current frequency used to correct the forward and reverse power indicators shown on the display The correction factors used by this feature are set from the factory and stored in non volatile memory Syntax CORR POW FREQ fr...

Page 53: ...t mode MANUAL or a user configurable mode ALC INT In the default mode MANUAL the ALC Detector Gain ALC Response and ALC Threshold settings do not affect the operation of the ALC feature because factory settings are used instead In the user configurable mode ALC INT the ALC Detector Gain ALC Response and ALC Threshold settings are used to configure the ALC functionality NOTE For safety reasons the ...

Page 54: ...ce setting the threshold to 50 will limit the RF Output to 50 of the default threshold level Syntax LEVEL THR thresh val thresh val Specifies the ALC Threshold value in from 0 no gain to 100 default ALC Threshold value Query No see the Machine State query command Example To set the ALC Threshold Level to half of the default value send the following command LEVEL THR50 LF Default Value 100 2 8 6 10...

Page 55: ... firmware of the I O board send the following command IOB LF Response INTERFACE_BOARD_SW_REV3 20 LF 2 8 6 13 Machine State Query This command queries the RF gain detector gain ALC threshold and ALC response time Query MSB Response Format RF space GAIN rf_gain DT space GAIN det_gain THRES alc_thresh RESP resp LF rf_gain The RF Gain setting 0 100 padded with leading spaces to be 3 characters det_gai...

Page 56: ...ound in the Amplifier State Response Table below For help converting the ASCII characters into binary bits see the Hex character to Binary Bits table Amplifier State Response Table Bit Position Description State Notes char 1 0 Not Used 1 Not Used 2 Not Used 3 Remote Control 0 Disabled 1 Enabled Response to keylock position REMOTE char 2 0 Power Status 0 OFF 1 ON 1 Standby Status 0 OFF 1 ON Depreca...

Page 57: ...on 1 Position 0 1 0 0 0 1 2 0 0 1 0 3 0 0 1 1 4 0 1 0 0 5 0 1 0 1 6 0 1 1 0 7 0 1 1 1 8 1 0 0 0 9 1 0 0 1 A 1 0 1 0 B 1 0 1 1 C 1 1 0 0 D 1 1 0 1 E 1 1 1 0 F 1 1 1 1 2 8 6 15 Forward Power Query This command queries the internally detected forward power values are corrected and linearized Query FPOW Response Format FPOW power LF power The detected forward power 0 99999 in Watts value is always fiv...

Page 58: ...query the RF On operating hours send the following command OH LF Response OH space space space space 37 LF The system has spent 37 Hours in an RF On state 2 8 6 18 Operating Hours Power ON Query This command queries hours spent in Power ON Query OHP Response Format OHP x LF hours The total hours with Power On 0 to 100000 padded with spaces to always be 6 digits wide Example To query the Power On o...

Page 59: ... the fault log Response Format hex error power time rf time LF hex error A hexadecimal number 0000 to FFFF representing the fault code padded with zeros to always be 4 characters wide power time The total power on hours 0 to 100000 rf time The total hours with RF enabled 0 to 100000 Example To query the fault log entry for memory location 1 most recent send the following command FSTA LOG 1 LF Resp...

Page 60: ...tax ROPTO timeout timeout The seconds between 0 and 500 that the amplifier will allow the RF to stay enabled before requiring a remote command If exceeded the RF will be disabled Query ROPTO LF Response Format ROPTO timeout LF Example 1 To set the timeout value to 1 minute send the following command ROPTO60 LF Example 2 To query the timeout value send the following command ROPTO LF Response ROPTO ...

Page 61: ... no fiber optically connected SBB assemblies are present an empty list is returned Syntax SBB group group The group number 1 or 2 of the SBB assemblies to query Response Format SBB_SW_REV revision LF revision A comma separated list of twenty 20 firmware revisions Example To query the firmware revisions of the first group send the following command SBB1 LF Response SBB_SW_REV2 70 2 70 2 70 2 70 2 7...

Page 62: ...Model 5000A225C 38 Rev A ...

Page 63: ...drive condition is detected The 2W Amplifier Assembly has two gain stages U1 and Q1 that have a combined gain of approximately 30 dB The output RF power is greater than 1W at the 1 dB compression point 3 2 2 A2 125W Driver Assembly The 125W Module Assembly consists of RF matching circuits an RF transistor Q1 a bias control circuit and a fault detection circuit The RF input is fed to a 4 1 balun tr...

Page 64: ...he output of U1 is fed to an op amp U3 which has a reference voltage on the non inverting input U3 compares the output of U1 to the reference voltage and generates an error signal This error signal varies the gate voltages of Q1 which in turn controls Q1 s current draw U5 is a comparator that monitors the output of U1 and generates a fault signal if the drain current varies outside normal operatin...

Page 65: ...29 final modules the A59 dual detector assembly K3 and K4 LV relays and the A57 interlock isolation assembly PS2 supplies 28V to the A1 pre amplifier module PS3 supplies 24V to all fan assemblies PS4 supplies the 34V drain voltage to the A2 driver assembly PS5 through PS12 supplies the 48V drain voltage to the A14 A29 final modules 3 4 CONTROL SYSTEM 3 4 1 A60 A61 and A52A3 Control Fault Boards Th...

Page 66: ...pearing at the sample ports produce a level of approximately 13 dBm at 5000 W Both forward and reverse signals have the same scaling at this point The sample ports are measured during final alignment of the amplifier and a correction table is provided with enough measured points to adequately characterize the sample ports across the full bandwidth of the amplifier When used with a power meter samp...

Page 67: ... fault control and detection circuits including display panel indications that can expedite troubleshooting of the unit For a description of how these indications can be used to assist in troubleshooting the unit please see Section 4 3 Shipping instructions are as follows To return an item contact AR Customer Service for an RMA number and shipping instructions Returns from outside the United State...

Page 68: ...SD sensitive devices Troubleshooting the Model 5000A225C in a logical manner can speed the solution to a problem The settings of potentiometers pots capacitors caps or other variables should not be disturbed until other problems have been eliminated Comparing the measured DC voltages to those shown on the schematics can solve many problems Before measuring circuit voltages first verify that the vo...

Page 69: ...000A225C and the power reflected back to it If the reflected power is very high with respect to the forward power this could indicate that the output coax cable is defective or that the load being driven has a high VSWR 4 3 2 The Unit Cannot Be Operated Remotely 1 Verify that the front panel key switch is set to the REMOTE position 2 Verify that the unit operates locally by setting the key switch ...

Page 70: ...ng for safety try to clear the Interlock Fault from the front panel by using the RESET switch 4 If the Interlock Fault will not clear check for continuity in the External Interlock Circuit Pin 1 to Pin 8 in the connector 5 Check the voltage on A52A3 J5 pin 32 it should be 0 1V 6 If the voltage on A52A3 J5 pin 32 is high check the interlock line to ground 4 3 4 2 AC Interlock Fault 1 In the event o...

Page 71: ...rough 18 If the power supply output fails this output will go high 4 0V and inhibit the A1 preamp driver module 4 3 6 Amplifier Faults Schematic 10039874 10045132 1 The fault output of driver module A2 and final modules A14 through A29 is sensed on A60 J5 pins 16 through 32 A fault will measure 0 1V under normal operation these lines will measure 4 9V 2V 2 Verify the correct voltages to the module...

Page 72: ...eck the following voltages on the Power Supply If any of the voltages are out of tolerance correct them before further troubleshooting PS1 J18 Pins 1 and 2 5V 0 3 V Pin 5 15 0V 0 3 V Pin 8 15 0V 0 3 V PS2 V 28V 0 3 V PS3 V 34V 0 3 V PS4 through PS12 V 48 V 0 3 V 5 Check the voltage on the feed thru caps of the A1 pre amplifier with the RF gain control at maximum gain Troubleshoot any incorrect vol...

Page 73: ...Section 4 4 8 should be completed before conducting the RF tests specified in the following sections The Model 5000A225C s typical gain response at 0 dBm input and 20 dBm input is shown in Figures 4 1 and 4 2 Figure 4 1 Typical Response at 0 dBm Input Figure 4 2 Typical Response at 20 dBm Input ...

Page 74: ...Model 5000A225C 50 Rev A 4 4 LOCATING AND REPLACING MODULES Remove rack enclosure side panels to gain access to Final modules See Figure 4 3 Figure 4 3 5000A225C Left Side Modules A22 A29 ...

Page 75: ... Rev A 51 Disconnect the green connectors the SMA input and output connectors and remove the four module screws holding the module in place See Figures 4 4 through 4 7 Figure 4 4 Connectors Figure 4 5 SMA Module Input ...

Page 76: ...00A225C 52 Rev A Figure 4 6 Final Module RF Output Figure 4 7 RF Module Install new replacement module using new thermal pad P N 10051176 Tighten the four mounting screws in an X pattern to ensure even pressure ...

Page 77: ...he device being upgraded 2 Unzip the AR Firmware Upgrade Utility and run the installer executable 3 After the installation completes unzip the model specific firmware and save it to a safe place on the hard drive do not rename the file The utility will ask for this file later 4 Run the AR Firmware Upgrade Utility and follow the instructions provided 5 Once the utility successfully connects click t...

Page 78: ...Model 5000A225C 54 Rev A ...

Page 79: ... cover If the security label is removed and or cut the warranty of the module will be voided Vacuum tubes in the L series amplifiers traveling wave tubes in TWT amplifiers and power heads will be free from defects in material and workmanship for a period of one 1 year Contact AR RF Microwave Instrumentation for warranty information regarding items not listed Seller s sole responsibility in fulfill...

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