AR 10012510 Operating And Service Manual Download Page 49 | Manualshive

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Rev D

31

5.

TECHNICAL

DOCUMENTATION

NOTE:

The purpose of this technical documentation section is to provide a guide to the TWTA for technician-
level servicing. It is intended for use by qualified technical personnel who

must

troubleshoot and

repair the TWTA in the field. Such repairs are typically limited to replacement of modules or major
components. For this reason, documentation pertaining to the highest levels of the system and to
system control logic is included.

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Summary of Contents for 10012510

Page 1: ...Operating and Service Manual 250T8G18 Model 10012510 Part Number Serial Number 160 School House Road Souderton PA 18964 215 723 8181 Fax 215 723 5688 www arworld us...

Page 2: ......

Page 3: ...lowing European directives Low Voltage Directive 2014 35 EU EMC Directive 2014 30 EU Supplementary Information Safety EN 60215 1 1989 EN 61010 1 2010 EMC EN 61000 6 2 2005 EN61000 6 4 2007 Year Mark A...

Page 4: ......

Page 5: ...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...

Page 6: ...a 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...

Page 7: ...von 10 2 cm 4 in auf allen bel fteten Seiten des Ger ts ein um eine ausreichende Luftzirkulation zu gew hrleisten Beintr chtigen Sie den Luftstrom des Ger ts nicht indem Sie L ftungs ffnungen oder de...

Page 8: ...allen in diesem Dokument angegebenen Anweisungen zur Anbringung Stellen Sie sicher dass alle Anschl sse f r den beabsichtigten Betrieb geeignet sind Informationen zu den Anschl ssen erhalten Sie im Be...

Page 9: ...tilation Ne limitez pas le flux d air allant dans l quipement en bloquant tout vent ou entr e d air La restriction du flux d air peut endommager l quipement causer des coupures intermittentes ou des d...

Page 10: ...dent lorsque vous installez ou retirez l unit Respectez toutes les instructions concernant l installation et le levage de l quipement indiqu es dans ce document Assurez vous que les connecteurs sont a...

Page 11: ...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 a...

Page 12: ...nstellen 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 gebruikershand...

Page 13: ...quency with Gain set to 100 apply RF drive that will provide rated power This will help indicate if the gain or power is changing and if the traveling wave tube or pre amp needs service Record the fol...

Page 14: ......

Page 15: ...Features 11 3 4 Front Panel Display and Soft Keys 12 3 4 Rear Panel Features 16 3 6 Initial Turn On and Warm up Procedure 17 3 7 Emergency Bypass Operation 17 3 8 Remote IEEE 488 Operation 18 3 9 Pul...

Page 16: ...Spare Parts 50 5 6 Sample Program for IEEE 488 Communication 51 FIGURES 3 1 Rear View of HPA 8 3 2 TWTA Front Panel Features 11 3 3 Front Panel Display Screens 12 3 4 TWTA Rear Panel Features 16 TABL...

Page 17: ...ch top use The front panel of the rack mountable amplifier is 10 5 inches high and the overall unit is 25 25 inches deep excluding the rear panel connectors For bench top use the amplifier is supplied...

Page 18: ...Model 200T8G18A 250T8G18 2 Rev D 1 5 TEST DATA SHEET A Test Data Sheet for a specific unit is prepared at the time of manufacture and is included with the unit s copy of this manual...

Page 19: ...a self contained forced air cooled broadband traveling wave tube TWT microwave amplifier designed for applications where instantaneous bandwidth and high gain are required A reliable TWT provides a co...

Page 20: ...N female on rear panel GPIB IEEE 488 f on rear panel Interlock DB 15 f on rear panel Video BNC female on rear panel COOLING Forced air self contained fans air entry and exit in rear SIZE AND WEIGHT Se...

Page 21: ...wave Filter Model TF Type TF type TF2005 For Use with AR TWTA Model 250T8G18 with WRD750D24 waveguide flange requires one filter Pass Band GHz 7 5 12 4 Insertion Loss dB Max 0 5 Reject Band GHz 15 36...

Page 22: ......

Page 23: ...000 and a traveling wave tube amplifier E30068 000 for Model 200T8G18A E08114 000 for Model 250T8G18 The type N RF input connector is located on the rear panel The RF input is fed to the input connec...

Page 24: ...reamplifier and the HPA interface board is provided by the low voltage power supply module A23687 001 Control logic and TWT protection circuits are contained in the HPA logic and Control Assembly A164...

Page 25: ...s been unplugged and it has been positively established that the high voltage filter capacitors have been discharged to a known safe level WARNING Safety Ground Improper grounding of this equipment ca...

Page 26: ...side screws on each side mounting the front panel to the cabinet Carefully slide the amplifier out of the front of the cabinet CAUTION Never rack mount the TWTA using the front panel alone The chassis...

Page 27: ...result in the unit shutting down from overtemperature conditions The TWTA dissipates approximately 1 5 kilowatts when in the operate mode 3 2 4 AC Line Power Connections AC line power connection to th...

Page 28: ...interlock connector J3 If no external isolator is used install a jumper between pins 3 and 4 See section 3 2 6 External Interlock Connector below 3 2 6 External interlock connector The TWTA is provid...

Page 29: ...as an input device to change values of a variety of parameters 5 EXIT Push button terminates various menu selection routines and returns to the previous menu level 6 9 S1 S4 Soft Key push buttons var...

Page 30: ...s a number of informational screens are programmed It is important for the operator to be able to select the screen with the required information Screen selection is accomplished by pressing an approp...

Page 31: ...Mode see below Pressing S1 SET toggles between ON and OFF Pressing MORE again brings up the SETUP 2 screen which allows the user to change the Auto Sleep Mode timer setting Pressing SET will change t...

Page 32: ...to determine the cause Pressing more brings up WARNINGS 2 which allows the under forward power setpoint to be entered Adjusting this to the minimum value causes OFF to be selected disabling this alarm...

Page 33: ...s the operational state of the TWTA is used as a fault display line until the fault is cleared When the fault clears the system will automatically resume the standby state and high voltage on will be...

Page 34: ...mote control connector 3 EXTERNAL INTERLOCK Connector to remote temperature switch protecting the isolator load 4 Cooling air intake 5 Cooling air outlet 6 RF IN RF input type N female on rear panel c...

Page 35: ...e cathode and the collector voltages rise Verify that the grid collector and cathode voltages are near nominal The helix current should be near the nominal value for no RF drive Then push MORE or EXIT...

Page 36: ...E STANDBY and RESET push buttons as well as access to parameter measurements system faults and control unit status The following tables summarize the commands and the return codes Table 3 3 Catalog of...

Page 37: ...D Returns under forward power warning setpoint dBm dBm Polo dBm SPOLOD Sets under forward power warning setpoint dBm dBm RDPOHIW Returns over forward power warning setpoint W watts Pohi W SPOHIW Sets...

Page 38: ...system does not have remote enabled 51 Remote system is not ready to accept commands 60 Command is not allowed in current system state 901 Assert error invalid table argument 902 Assert error invalid...

Page 39: ...4 LSB Heater time delay expired 5 Under forward power warning 6 Foldback active 7 MSB Inhibit mode x bit Meaning 8 LSB External inhibit 9 Interlock open 10 not used 11 MSB not used w bit Meaning 12 L...

Page 40: ...4 2 5 hour heater auto off time delay 5 3 0 hour heater auto off time delay Command syntax is in this form command mnemonic parameter carriage return where command mnemonic consists of one of any val...

Page 41: ...th a rear panel BNC connector which can be used for pulsing the beam of the TWT and hence the RF output As compared with providing a pulsed RF input pulsing the beam of the TWT offer low noise between...

Page 42: ...is important to prevent the heated air which is expelled from the TWTA s air outlets from being recycled into the air inlets Applications should have a clearance behind the TWTA of at least two feet...

Page 43: ...and the tube is gassy Occasional arcing is normal for a TWT The support components are designed to handle this protecting both the TWT and its support circuitry However if the tube arcs two or three t...

Page 44: ...Model 200T8G18A 250T8G18 26 Rev D...

Page 45: ...ve been discharged to a known safe level CAUTION A malfunctioning power supply can cause damage to the TWT If you are troubleshooting the TWTA remove the TWT and substitute suitable loads to prevent d...

Page 46: ...ehind TWTA High air inlet temperature Defective blower or power supply No response when main power turned on Panel open interlock switch open Control module display does not come up unit does not beep...

Page 47: ...tage Diode Cap Assembly A22818 002 the High Voltage Filter Assembly A21461 000 the Modulator Assembly A21422 101 and the Heater Supply A10010 000 are encapsulated modules and are not repairable Contac...

Page 48: ...Model 200T8G18A 250T8G18 30 Rev D...

Page 49: ...hnician level servicing It is intended for use by qualified technical personnel who must troubleshoot and repair the TWTA in the field Such repairs are typically limited to replacement of modules or m...

Page 50: ...A1A8A1T1 A09227 000 PULSE TOP XFMR HAND WOUND 1A1A8A1T2 A09228 000 FEEDBACK XFMR HAND WOUND 1A1A8A1T3 A09229 000 BIAS XFMR HAND WOUND 1A1A8A1T4 T5 A09230 000 XFMR GATE DRIVE HAND WOUND 1A1A8A2 A23715...

Page 51: ...A09229 000 BIAS XFMR HAND WOUND 1A1A8A1T4 T5 A09230 000 XFMR GATE DRIVE HAND WOUND 1A1A8A2 A23715 121 PIJ PSC MODULATOR CONTROL BOARD FOR PULSED CW APPLICATION HPAS W KEYLOCK 1A1A9 A10010 000 HEATER P...

Page 52: ...Model 200T8G18A 250T8G18 34 Rev D...

Page 53: ...TICS 10 16485 000 HPA Logic and Control A16485 000 10 24369 000 Remote Control Board with Foldback A24369 000 10 24380 000 Microwave Power Assembly A24380 042 10 28880 000 HPA 200W 10 1 2 Series A2888...

Page 54: ...Model 200T8G18A 250T8G18 36 Rev D...

Page 55: ...Model 200T8G18A 250T8G18 Rev D 37 5 3 WIRING DIAGRAMS 20 22520 000 TWT Power Supply 10 1 2 Series A22520 062...

Page 56: ...Model 200T8G18A 250T8G18 38 Rev D...

Page 57: ...ogic and control assembly A22520 062 I J band power supply pulsed for TWT 5401 A24324 000 HPA system front panel assembly A24369 000 Remote control board A24380 042 Microwave power assembly A25444 000...

Page 58: ...37 PIN MALE D SUB PCB RIGHT ANGLE AMP 747252 4 1 J18075 000 MALE SCREW LOCK FOR D SUBMIN CONN AMP 205817 1 1 J4 J5 J18086 000 CONN SMA JACK RECEPTACLE RIGHT ANGLE 0 18GHZ PC MOUNT JOHNSON COMPONENTS...

Page 59: ...ALE RN55D 1 R12 R15 R32020 000 TRIMPOT 10K 1 2W 10 CERMET 20T SIDE ADJ BECKMAN 67X 2 U4 U5 U6 U02390 000 IC QUAD COMPARATOR NAT LM139J 3 U7 U03240 000 IC LOW POWER OP AMP NAT LM324 1 U9 U10070 000 REF...

Page 60: ...17 500 PWM BOARD 1 A3 A16485 000 HPA LOGIC AND CONTROL MODULE 1 A5 A16487 002 POWER BOARD ASSY C MODE 1 A8 A21422 101 GRID MODULATOR FOR CW HPA W PULSE OPTION 1 A7 A21461 000 HV FILTER ASSEMBLY 1 A6 A...

Page 61: ...101 1 H17038 000 PAL NUT FOR AR ESCUTCHEON AR 14048 2 J26 J01031 000 CONN MALE 3 PIN 063 MOLEX 03 06 20332 1 XJ26 J03013 000 CONN PIN MALE 063 MOLEX 002 06 2103 3 N21564 001 DISPLAY VIEW WINDOW 1 XA2...

Page 62: ...TEST JACK RED VERTICAL EF JOHNSON 105 0852 001 1 TP3 J16213 000 TEST JACK ORANGE VERTICAL EF JOHNSON 105 0856 001 1 J2 J4 SEE NOTE J18086 000 CONN SMA JACK RECEPTACLE RIGHT ANGLE 0 18GHZ PC MOUNT JOH...

Page 63: ...GRID 4 DB EQ E30068 000 for 200W model E08114 000 for 250 watt model 1 R1 R2 E20012 000 ATTENUATOR 6DB SMA 2W MIDISCO MDC8065 6 2 E20014 000 ATTENUATOR 14DB SMA 2W MIDISCO MDC8065 14 1 E20066 000 ATT...

Page 64: ...112 113 114 115 116 117 121 125 132 167 C31036 000 CAP 0 1MF 100VDC 10 CER 1 FAILURE KEMET CKR06 SERIES W V OPTION 61 C12 C14 C21 C27 C29 C31 C34 C36 C38 C17 C18 C19 C37 C54 C55 C56 C57 C58 C59 C60 C...

Page 65: ...0 RES 33 2K 1 2W 1 MF 100PPM DALE RN55D 1 R3 R5 R30071 000 TRIMPOT 10K 1 2W 10 CERMET 100PPM 20T TOP ADJ BECKMAN 67W 2 R9 R12 R15 R22 R35 R36 R40 R44 R30103 000 RES 10K 1 8W 1 MF AXIAL 100PPM DALE CMF...

Page 66: ...T BINARY DOWN COUNTER 74HC40103 SSD 1 U43 U26889 000 IC 8 BIT MAGNITUDE COMPARATOR 74HCT688 SSD 1 U22 U24 U57 U28008 000 IC QUAD 2 INPUT AND 74HC08 SSD 3 U4 U49 U58 U28032 000 IC QUAD 2 INPUT OR 74HC3...

Page 67: ...000 HPA SYSTEM CONTROL FRONT PANEL ASSEMBLY 1 A2 A24380 042 MICROWAVE POWER ASSEMBLY 250IJ 1 A9 A24381 040 HPA CABINET 200IJ 10 1 2 SERIES DO NOT KIT 1 A6 A24382 000 COOLING SYSTEM 10 1 2SERIES 1 A5 A...

Page 68: ...2 101 Modulator assembly A21461 000 High voltage filter assembly A22818 002 High voltage diode cap assembly A23683 000 Power factor correction 100 250V input A23687 001 Low voltage power supply module...

Page 69: ...2 AARON D McCLURE 1040 1041 DIM F 80 1042 DIM A 80 1050 CLEAR SCREEN 1060 INPUT INPUT COMMAND TO SEND TO POWER SUPPLY EXIT TO QUIT A 1070 IF A EXIT THEN 1130 1080 OUTPUT 701 A 1090 IF A 1 2 RD THEN GO...

Page 70: ...Model 200T8G18A 250T8G18 52 Rev D...

Page 71: ...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...

Page 72: ......

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