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AR 10006896, Operating And Service Manual

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AR 10006896 Operating And Service Manual Download Page 45

 

Rev E 

33 

4.  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, only documentation pertaining to the highest levels of the system and to 
system control logic is included. 

 

Summary of Contents for 10006896

Page 1: ...Operating and Service Manual 500T2G8 Model 10006896 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: ...iance with the following 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...

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: ...ications to the machine may have been made use this information only as a guide Carefully compare the unit s actual configuration and operation to the descriptions in this manual before you undertake...

Page 8: ...Model 500T2G8...

Page 9: ...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 10: ......

Page 11: ...F Output Connections 12 3 2 6 External Interlock Connector 12 3 3 Front Panel Features 14 3 4 Front Panel Display and Soft Keys 15 3 5 Rear Panel Features 19 3 6 Initial Turn On and Warm up Procedure...

Page 12: ...TWT Amplifier SC Band Single A26901 311 51 5 3 8 Parts List 500W TWT Amplifier SC Band Three A26901 313 52 5 4 Sample Program for IEEE 488 Communication 53 FIGURES 3 1 Side View of TWT showing Thread...

Page 13: ...rack mountable amplifier is 8 75 inches high and the overall unit is 25 25 inches deep excluding the rear panel connectors For bench top use the amplifier is supplied in an enclosure with integral ca...

Page 14: ...this amplifier including Directional coupler Antenna Flexible transmission line Refer to a current AR RF Microwave Instrumentation catalog for Microwave Accessories 1 5 TEST DATA SHEET A Test Data She...

Page 15: ...ained forced air cooled broadband traveling wave tube TWT microwave amplifier designed for applica tions where instantaneous bandwidth and high gain are required A reliable TWT provides a conservative...

Page 16: ...e from the follow ing E1 or E2 or E2S E1 removable outer enclosure size 20 x 10 x 27 in 50 8 x 25 4 x 68 6 cm add 14 kg 30 lbs to weight of E2 E2 without outer enclosure size 20 x 8 75 x 26 in 50 8 x...

Page 17: ...4P M79 E2S P2 S4P S5V M4 E2 P2 M35 E1 P2 S1R S4P M80 E1 P1 S1R S4P S5V M5 E2S P1 M36 E2 P2 S1R S4P M81 E2 P1 S1R S4P S5V M6 E2S P2 M37 E2S P2 S1R S4P M82 E2S P1 S1R S4P S5V M7 E2 P2 S3V M50 E1 P1 S5V...

Page 18: ......

Page 19: ...The RF input is fed to the input connector on the solid state preamp The solid state preamp s output drives the RF input of the TWT via an equalizer The RF output of the TWT is a Type S C coaxial conn...

Page 20: ...A16485 000 The Heater Power Supply Module A10010 000 powers the TWT DC heater Grid bias and pulse top are provided by the Grid Modulator Module A21422 000 The high voltage power supply consists of the...

Page 21: ...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 22: ...arefully slide the amplifier out of the front of the cabinet or rack CAUTION Never rack mount the TWTA using the front panel alone The chassis is likely to be damaged unless its weight is supported Bo...

Page 23: ...ns 3 2 4 1 Three Phase Models only AC line power connection to the TWTA is made on a terminal block inside the power supply control module enclosure Access to the terminal block screws is by removal o...

Page 24: ...temperature sensing switch The temperature switch should be normally closed self resetting and with a temperature rating such that there is no possibility of damaging the load by overheating before t...

Page 25: ...ock is provided with an external inhibit function To enable the TWT grid on it is necessary to provide continuity between pins 10 and 11 of J2 Breaking continuity drives the grid to the bias condition...

Page 26: ...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 various...

Page 27: ...mber 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 appropriate...

Page 28: ...supply and put the HPA into Sleep 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 s...

Page 29: ...isabling this alarm In WARNINGS 3 the maximum reflected power level is set Note that these are warning levels at which the beep sounds the actual maximum reflected power level that generates a system...

Page 30: ...h voltage on will be enabled once again Factory Service Screens A number of screens intended for factory service and calibration are behind passwords and are not accessible to the user System Malfunct...

Page 31: ...le connector 3 6 INITIAL TURN ON AND WARM UP PROCEDURE Install the TWTA as discussed in Section 3 2 Provide an RF generator to the RF input Type N connector A2J1 Set RF generator level below 50 dBm an...

Page 32: ...e forward power bar graph will become active with maximum length when peak power output is achieved Best performance is obtained when the input RF drive is set at or just below the level which causes...

Page 33: ...and the return codes Table 3 3 Catalog of IEEE 488 Commands Command Function Units Response format RDSTAT Returns status code of processing of previous command see Table 3 4 STATUS RDFLT Returns syste...

Page 34: ...dBm SPOLOD Sets under forward power warning setpoint dBm dBm RDPOHIW Returns over forward power warning setpoint W watts Pohi W SPOHIW Sets over forward power warning setpoint W watts RDPOLOW Returns...

Page 35: ...t have remote enabled 51 Remote system is not ready to accept commands 901 Assert error invalid table argument 902 Assert error invalid calibration Please call a service representative if you observe...

Page 36: ...B 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 LSB no...

Page 37: ...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 valid comm...

Page 38: ...o RF drive Such operation for about one hour on a weekly basis should effectively reduce nuisance tripping Since the cathode structure has finite life extended periods of non functional operation of T...

Page 39: ...be released thus corrupting the vacuum of the tube If the tube become too gassy arcing may occur when the high voltage is fully applied in the Operate mode Another possible failure mode is a body ove...

Page 40: ...Model 500T2G8 28 Rev E...

Page 41: ...ave 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...

Page 42: ...ture Defective blower or power supply No response when main power turned on Panel open interlock switch open external interlock jumper removed Control module display does not come up unit does not bee...

Page 43: ...de Cap Assembly A21425 296 the High Voltage Filter Assembly A21461 500 the Grid Modulator Assembly A21422 000 and the Heater Supply A10010 000 are encapsulated modules and are not repairable Contact a...

Page 44: ...Model 500T2G8 32 Rev E...

Page 45: ...ician 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 maj...

Page 46: ...Model 500T2G8 34 Rev E...

Page 47: ...0 FEEDBACK XFMR HAND WOUND 1A1A8A1T3 A09229 000 BIAS XFMR HAND WOUND 1A1A8A1T4 T5 A09230 000 XFMR GATE DRIVE HAND WOUND 1A1A8A2 A23715 000 MODULATOR CONTROL BOARD 1A1A9 A10010 000 HEATER POWER SUPPLY...

Page 48: ...D 1A1A8A1T4 T5 A09230 000 XFMR GATE DRIVE HAND WOUND 1A1A8A2 A23715 000 MODULATOR CONTROL BOARD 1A1A9 A10010 000 HEATER POWER SUPPLY MODULE 1A1A9T1 A09409 000 XFMR HEATER FEEDBACK 1A1A9T2 A09408 000 X...

Page 49: ...A10010 000 HEATER POWER SUPPLY MODULE 1A1A9D30 A32660 000 DIODE BLOCK 1A1A9T1 A09409 000 XFMR HEATER FEEDBACK 1A1A9T2 A09408 000 XFMR HEATER POWER 1A1A10 A10017 511 PWM BD FOR 500T2G8 1A1A11 A25398 51...

Page 50: ...Model 500T2G8 38 Rev E...

Page 51: ...E 39 5 2 SCHEMATICS 10 16485 000 HPA Logic and Control A16485 000 10 24830 000 Emergency Bypass Board A24830 001 10 26901 311 500W TWT Amplifier SC Band Single Phase AR A26901 311 10 25444 000 HPA Int...

Page 52: ...Model 500T2G8 40 Rev E...

Page 53: ...SC Band Power Supply Three Phase A22826 501 500W SC Band Power Supply Single Phase A24830 001 Emergency Bypass Board A25444 000 HPA interface board A26857 003 Microwave Power Assembly 500W SC Band A26...

Page 54: ...IN 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 142 0...

Page 55: ...55D 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 REFERENCE...

Page 56: ...M BD FOR 500T2G8 1 A3 A16485 000 HPA LOGIC AND CONTROL MODULE 1 A8 A21422 000 GRID MODULATOR MODULE 1 A6A A21425 296 DIODE CAP ASSY FOR TWT 5296 1 A6 A21425 500 DIODE CAP ASSY FOR TWT MEC5196 1 A7 A21...

Page 57: ...3 A16485 000 HPA LOGIC AND CONTROL MODULE 1 A8 A21422 000 GRID MODULATOR MODULE 1 A6A A21425 296 DIODE CAP ASSY FOR TWT 5296 1 A7 A21461 500 HV FILTER FOR 5196 1 A1 A23280 000 HEAT SINK MOTHER BOARD 1...

Page 58: ...MPONENTS 142 0701 301 1 J1 J18180 000 CONN D SUB 15 PIN MALE STRAIGHT PCB MOUNT POSITRONIC MD15M3000 1 Q1 Q3 Q22222 000 TRANSISTOR NPN 2N2222A TO 18 3 Q4 Q5 Q22907 000 TRANSISTOR PNP 2N2907A TO 18 2 R...

Page 59: ...103 105 107 108 109 110 111 112 113 114 115 116 117 121 125 132 167 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 C...

Page 60: ...845 OHM 1 2W 1 MF 100PPM DALE RN55D 1 R59 R22332 000 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...

Page 61: ...U45 U24138 000 IC 8 BIT 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...

Page 62: ...EX 15 SMA MALE TO MALE 20 GHZ 50 OHM 0 141 CABLE INSULATED JACKET SRC 150 150 150150 1 A1 E01136 000 SSPA 2 5 8 GHZ 30DBM 33 DB GAIN VGA CPI CMA2580B XX 1 A3 E01416 000 DUAL COUPLER 2 5 8 0 GHZ 40 30...

Page 63: ...22933 300 CONTROL HEAD ENCLOSURE IEEE 488 1 A6 A23692 000 INSULATED FAN DRIVER 1 A5 A25444 000 HPA INTERFACE BOARD PLASTIC FIBERS 1 A3 A26856 001 FRONT PANEL ASSY AR 500T SINGLE PHASE 1 A2 A26857 003...

Page 64: ...A22933 300 CONTROL HEAD ENCLOSURE IEEE 488 1 A6 A23692 000 INSULATED FAN DRIVER 1 A5 A25444 000 HPA INTERFACE BOARD PLASTIC FIBERS 1 A3 A26856 000 HPA SYSTEM CONTROL FRONT PANEL ASSY AR 500T 1 A2 A26...

Page 65: ...ON 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 GOTO 10...

Page 66: ...Model 500T2G8 54 Rev E...

Page 67: ...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 68: ......

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