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AR 200T4G8 Operating And Service Manual

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Operating and
Service Manual
200T4G8
Model
10006031
Part Number
Serial Number
160 School House Road, Souderton, PA 18964 • 215-723-8181 • Fax 215-723-5688 • www.arworld.us

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  • Page 1 Operating and Service Manual 200T4G8 Model 10006031 Part Number Serial Number 160 School House Road, Souderton, PA 18964 • 215-723-8181 • Fax 215-723-5688 • www.arworld.us...
  • Page 3 Models 200T1G2, 200T1G3, 250T1G3, 200T2G4, 200T2G8, 300T2G8, 200T4G8, 200T8G18, 250T8G18 RF amplifiers to which this declaration relates is in compliance with the requirements of the EEC EMC Directive (89/336/EEC) in accordance with the relative standards listed below:...
  • Page 5 Avoid sudden care. stops and uneven surfaces. BEFORE APPLYING POWER Indicates a terminal intended for connection to an Your AR equipment may have more than one power supply external conductor protection against cable. Use only approved power cable(s). If you have not been...
  • Page 6 EQUIPMENT CONTAINING LASERS to unsafe product handling should be AR Field Probes (FL/PL Series) and Field Analyzers a fundamental consideration of every (FA Series) are Class 1 laser products containing user. An authoritative guideline for embedded Class 4 lasers.
  • Page 7 Suggested Periodic Maintenance for TWT Amplifiers 1. Keep monthly log of the voltages, currents and temperatures as shown on Menus. Also record Date, “Console” and “Operate” hours. Take readings in Operate mode with the gain at zero (0%) percent. Leave unit in Operate mode for 20 minutes (Max Duty if Pulsed Unit), and then record data.

  • Page 9: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS ....................i DESCRIPTION AND SPECIFICATIONS .............1 TWTA Description ....................1 Suggested Applications....................1 Specifications ......................1 Accessories.........................1 Test Data Sheet ......................1 THEORY OF OPERATION..................5 Design of the Amplifier .....................5 Description of the RF Circuit (A24380-030) .............5 Description of the Power Supply (A22520-090) ............6 OPERATION ......................7 Warnings and Cautions ....................7 Installation........................8...
  • Page 10 Model 200T4G8 5.4.7 Parts List-200 Watt C Band TWTA, AR 10-1/2, A28880-932......47 Recommended Spare Parts..................48 Sample Program for IEEE-488 Communication............49 FIGURES AND TABLES Figure 3-1. Rear View of HPA...................8 Figure 3-2. TWTA Front Panel Features................11 Figure 3-3. Front Panel Display Screens................12 Figure 3-4.

  • Page 11: Description And Specifications

    1. DESCRIPTION AND SPECIFICATIONS This manual provides operating, interfacing and selected service information pertinent to Amplifier Research Model 200T4G8 Broadband Microwave Amplifier. The Model 200T4G8 is a 200 watt C band traveling-wave tube amplifier (TWTA). TWTA DESCRIPTION The amplifier uses a 250 watt traveling wave tube (TWT) to provide 200 watts minimum output over the TWT amplifier's full bandwidth.
  • Page 12 Model 200T4G8 Rev F...
  • Page 13 Specifications Features The Model 200T4G8 is a self contained, Modular design of the power supply and RF 200T4G8 forced air cooled, broadband traveling wave components allow for easy access and repair. tube (TWT) microwave amplifier designed for Use of a switching mode power supply results applications where instantaneous bandwidth in significant weight reduction.
  • Page 14 Enclosure removed. Side carry handles 41 kg (90 lb) 48.3 x 26.7 x 68.6 cm 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: service@arworld.us For Faxing Orders:866.859.0582 (Orders Only Please) info@arworld.us...

  • Page 15: Theory Of Operation

    2. THEORY OF OPERATION DESIGN OF THE AMPLIFIER The Model 200T4G8 TWT amplifier consists of four principal subsystems. Two of these subsystems, the microwave power assembly (A24380-030) and the TWT power supply (A22520-090) are discussed in sections 2.2 and 2.3, respectively.

  • Page 16: Description Of The Power Supply (A22520-090)

    Model 200T4G8 provided locally on the remote control board. The foldback circuit remains on line in emergency bypass operation. DESCRIPTION OF THE POWER SUPPLY (A22520-090) The TWT power supply is of modular construction. Low voltage power for logic and control of the entire power supply assembly, the preamplifier, and the HPA interface board is provided by the low voltage power supply module (A23687-001).

  • Page 17: Operation

    3. OPERATION WARNINGS AND CAUTIONS Throughout this manual, the symbol: WARNING: indicates that a hazard exists that may result in personal injury or loss of life. CAUTION: indicates that failure to follow procedures may result in damage to the equipment. WARNING: DANGER - High Voltage Present: Electrical equipment in this TWTA generates and stores high-voltage energy that can result in fatal electrocution.

  • Page 18: Installation

    Model 200T4G8 INSTALLATION 3.2.1 Unpacking Upon receiving the TWTA, unpack the unit and inspect it for obvious signs of external damage. If damage is observed, notify the carrier and contact an authorized service representative. Save and store the shipping container in case the unit needs to be returned in the future for calibration or repair.

  • Page 19: Cooling Requirements

    Model 200T4G8 For rack mount installation of multiple units, the units should be separated vertically by at least 1 3/4 inches. This will allow room for necessary support rails and facilitate installation and removal of the units. 3.2.3 Cooling Requirements The TWTA is provided with a cooling fan.

  • Page 20: Rf Connections

    Model 200T4G8 3.2.5 RF Connections The RF output connector is type N female coaxial connector. CAUTION: Never operate the TWTA without a matched output load rated for at least 350 watts, continuous. The TWTA is not provided with an output isolator.

  • Page 21: Front Panel Features

    Model 200T4G8 Front Panel Features ADJUST INHIBIT LOCAL STANDBY OPERATE REMOTE EXIT MAIN POWER Figure 3-2. TWTA Front Panel Features Table 3-1. Front Panel Features Label Title Function MAIN POWER Switchable 16 A. circuit breaker; connects primary power to power supplies.

  • Page 22: Front Panel Display And Soft Keys

    Model 200T4G8 FRONT PANEL DISPLAY AND SOFT KEYS The purpose of the front panel display is to permit the operator to access extensive information about the condition and operation of the TWTA. To accomplish this, a number of informational screens are programmed.
  • Page 23 Model 200T4G8 Menu screens - The screens at the highest level are called menu screens. There are four menu screens. At power on, the MENU 1 screen is displayed. Each of the menu screens has the soft key S4 labeled MORE. The MORE key (S4) causes the next menu screen to appear.
  • Page 24 Model 200T4G8 To activate Sleep Mode locally: Press the MORE soft key to get to MENU 2. At MENU 2 press the SETUP soft key to get to SETUP 1. At SETUP 1 press SET to activate Sleep Mode (turn heater and fan off). The system will ask Are you sure? Press SET again.
  • Page 25 Model 200T4G8 number and firmware revision information that may be required by a service representative when providing technical assistance. The EXIT key returns the display to MENU 2. Event Screen - From MENU 4, S2 (labeled EVENT) provides a display of events logged by the control system.

  • Page 26: Rear Panel Features

    Model 200T4G8 REAR PANEL FEATURES Figure 3-4. TWTA Rear Panel Features Table 3-2. TWTA Rear Panel Features Label Title Function 190-260 VAC IN AC power input connector REMOTE INTERFACE Remote control connector EXTERNAL INTERLOCK Connector to remote temperature switch protecting the isolator load...

  • Page 27: Initial Turn On And Warm-Up Procedure

    Model 200T4G8 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 A1J1. Set RF generator level below -50dBm and set desired frequency in specified range. Connect a load suitable for 350 watts continuous operation to the output coax.

  • Page 28: Emergency Bypass Operation

    Model 200T4G8 Emergency Bypass Operation For reference, see schematic 10-24369-000 in section 5.2. The TWTA is provided with a means of operating the amplifier manually in the event that there is a failure of the control module and it is imperative that the amplifier remains on line.
  • Page 29 Model 200T4G8 RDTMPTWTF Returns TWT temp (°F) °F TWTF=[ ]F RDTMPTWTC Returns TWT temp (°C) °C TWTC=[ ]C RDTMPPSF Returns power supply temp (°F) °F PSF=[ ]F RDTMPPSC Returns power supply temp (°C) °C PSC=[ ]C RDTWTOTF Returns TWT overtemp warning setpoint (°F) °F...
  • Page 30 Model 200T4G8 Table 3-4. Catalog of Status Codes (The RDSTAT command causes the TWTA to return a string in the form STATUS=[code], where [code] is an ASCII number whose meaning is given below) Status Code Meaning No command was given.
  • Page 31 Model 200T4G8 Table 3-6. Catalog of System State Codes (The RDLOGIC command causes the TWTA to send a string containing an operational state code consisting of 4 ASCII characters representing hex digits. The response is in the form Sys:[w][x][y][z][eol] where the hex...
  • Page 32 Model 200T4G8 Table 3-8. *STB?; Response Codes (The command *STB?; causes the TWTA to send a string containing an operational state code consisting of 2 ASCII characters representing hex digits. The response is in the form STATUS:[x][y][eol] where the hex...

  • Page 33: Twta General Considerations

    Cooling during Operate Mode: AR TWTAs have their air outlets and inlets on the rear panels. It is important to prevent the heated air, which is expelled from the TWTA’s air outlets, from being recycled into the air inlets.
  • Page 34 Model 200T4G8 other contraindication, the Operate mode may be selected again. This procedure may be repeated, if needed up to 25 times, until the Operate mode is actually set. If this condition persists, contact Amplifier Research Service for additional assistance. (See Explanation of Limiting the Time in Standby mode and of...
  • Page 35 Model 200T4G8 To preclude this gassing problem, and thus reduce the need for repeating the Operate selection, it is recommended that the time in Standby be limited – to about one hour. Extended periods in Standby may result in an inability to clear the fault by this method. In this case, service measures may be needed to correct the unit.
  • Page 36 Model 200T4G8 Rev. F...

  • Page 37: Maintenance

    4. MAINTENANCE The TWTA does not require routine scheduled maintenance. The only moving parts are the elements of switches, relays and blowers. Preventive maintenance is recommended in Paragraph 4.3. The TWTA is basically a factory repairable unit. However, since limited logic schematics and partial parts information is supplied in this manual (Section V) some user service organizations may choose to perform their own corrective maintenance.

  • Page 38: Troubleshooting

    Model 200T4G8 If significant dust has been noted on the air intake grill, it may be desirable to vacuum the dust and debris from inside the enclosure. To open the enclosure: 1. Remove the amplifier from the cabinet or rack as follows:...

  • Page 39: Non-Repairable Modules

    Model 200T4G8 After review of the symptoms of the failure, the user may want to check for a loose connector or component especially after rough handling of the unit. Look externally for physical damage and internally for unmated or loose parts.
  • Page 40 Model 200T4G8 Rev. F...

  • Page 41: Technical Documentation

    5. TECHNICAL DOCUMENTATION This section provides 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.

  • Page 42: Top Level Build Tree

    Model 200T4G8 TOP LEVEL BUILD TREE A28880-932 200 Watt C Band TWTA, AR 10-1/2 Series A22520-090 C-Band Power Supply for TWT 5889 (230V) 1A1A1 A24357-000 Heat Sink/Mother Board 1A1A2 A23687-001 Low Voltage Power Supply Module 1A1A3 A16485-000 HPA Logic and Control Module...

  • Page 43: Schematics

    Model 200T4G8 SCHEMATICS 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 (A24380-030) 10-28880-000 HPA 200W 10 1/2" Series (A28880-932) 10-25444-000 HPA Interface (A25444-000) Rev. F...
  • Page 44 Model 200T4G8 Rev. F...

  • Page 45: Wiring Diagrams

    Model 200T4G8 WIRING DIAGRAMS 20-22520-000 TWT Power Supply 10 1/2" Series (A22520-090) Rev. F...
  • Page 46 Model 200T4G8 Rev. F...

  • Page 47: Parts Lists

    HPA Logic and Control Assembly A22520-090 C-Band Power Supply for TWT 5889 A24324-000 HPA System Front Panel Assembly A24369-000 Remote Control Board A24380-030 Microwave Power Assembly A25444-000 HPA Interface Board A28880-932 200W C Band TWTA, AR 10-1/2” Series Rev. F...

  • Page 48: Parts List-Hpa Logic And Control Module, A16485-000

    Model 200T4G8 5.4.1 Parts List-HPA Logic and Control Module, A16485-000 REF. DESIG. ETM P/N DESCRIPTION QUANTITY B16485-000 HPA LOGIC AND CONTROL BOARD C16333-000 CAP,33MF,25V,AERL,(NICHICON UVX1E330M) C2, C5, C15, C58 C31028-000 CAP,1000PF,200VDC,10%,CER,1% FAILURE,(KEMET CKR05 SERIES W/"V" OPTION) C3, C9, C10, C13, C14, C17, C19, C31032-000 CAP,0.01MF,200VDC,10%,CER,1% FAILURE,(KEMET...
  • Page 49 Model 200T4G8 REF. DESIG. ETM P/N DESCRIPTION QUANTITY R47, R48 R22200-000 RES,20K,1/2W,1%,MF,100PPM,(DALE RN55D) R79, R80 R22470-000 RES,47K,1/2W,1%,MF,100PPM,(DALE RN55D) R42, R60, R61, R89 R23100-000 RES,100K,1/2W,1%,MF,100PPM,(DALE RN55D) R33, R55 R23698-000 RES,698K,1/2W,1%,MF,100PPM,(DALE RN55D) R23750-000 RES,750K,1/2W,1%,MF,100PPM,(DALE RN55D) R23845-000 RES,845K,1/2W,1%,MF,100PPM,(DALE RN55D) R23953-000 RES,953K,1/2W,1%,MF,100PPM,(DALE RN55D) R12, R15...

  • Page 50: Parts List-C-Band Power Supply For Twt 5889, A22520-090

    Model 200T4G8 5.4.2 Parts List-C-Band Power Supply for TWT 5889, A22520-090 REF. DESIG. ETM P/N DESCRIPTION QUANTITY A10007-000 ANODE MODULE ASSY A10010-000 HEATER POWER SUPPLY MODULE A10017-090 PWM BOARD A16485-000 HPA LOGIC AND CONTROL MODULE A16487-001 POWER BOARD ASSY (C.MODE)

  • Page 51: Parts List-Hpa System Control Front Panel, A24324-000

    HPA DISPLAY BOARD A24369-000 REMOTE CONTROL BOARD H13029-000 PLASTIC KNOB WITH FINGER DIMPLE,(HP 01650- 47401) H17037-000 ESCUTCHEONAR2 1/2X1 1/4,(AR 1006659-1-101) H17038-000 PAL NUT FOR AR ESCUTCHEON,(AR 14048) J01031-000 CONN,MALE 3 PIN,.063,(MOLEX 03-06-20332) XJ26 J03013-000 CONN,PIN MALE,.063,(MOLEX 002-06-2103) N21564-001 DISPLAY VIEW WINDOW N22922-900...

  • Page 52: Parts List-Remote Control Board, A24369-000

    Model 200T4G8 5.4.4 Parts List-Remote Control Board, A24369-000 REF. DESIG. ETM P/N DESCRIPTION QUANTITY BB24369-000 REMOTE CONTROL BOARD C4-C6 C04105-000 CAP,0.1MF,100V,20%,MON, (KEMET C331C104M1R5CA) C05223-000 CAP,2.2MF,35V,10%,SOLID SEALED TANT,RADIAL,(SPRAGUE 199D225X9035BA1) C31028-000 CAP,1000PF,200VDC,10%,CER,1% FAILURE,(KEMET CKR05 SERIES W/"V" OPTION) C31032-000 CAP,0.01MF,200VDC,10%,CER,1% FAILURE,(KEMET CKR06 SERIES W/"V" OPTION)

  • Page 53: Parts List-Microwave Power Assembly 200C, A24380-030

    Model 200T4G8 5.4.5 Parts List-Microwave Power Assembly 200C, A24380-030 REF. DESIG. ETM P/N DESCRIPTION QUANTITY E00888-009 CABLE,RF FLEX, 9,SMA,MALE TO MALE,20 GHZ,50 OHM,0.141 CABLE,INSULATED JACKET,[SRC 150-150- 150090] E00888-012 CABLE,RF FLEX,12,SMA,MALE TO MALE,20 GHZ,50 OHM,0.141 CABLE,INSULATED JACKET,[SRC 150-150- 150120] E00888-015 CABLE,RF FLEX,15,SMA,MALE TO MALE,20 GHZ,50 OHM,0.141 CABLE, INSULATED JACKET, [SRC 150-...

  • Page 54: Parts List-Hpa Interface Board (Plastic), A25444-000

    Model 200T4G8 5.4.6 Parts List-HPA Interface Board (Plastic), A25444-000 REF. DESIG. ETM P/N DESCRIPTION QUANTITY B25444-000 HPA INTERFACE BOARD C161 C03105-000 CAP,0.01MF,100V,CER,10%,RADIAL,(AVX SR201C103KAA) C171 C04223-000 CAP,0.22MF,35V,TANT,RADIAL, [JAMCO 33507] C20, C32, C100 C05153-000 CAP,1.5MF,35V,TANT,RADIAL,(JAMECO TM1.5/35) C129, C163 C05223-000 CAP,2.2MF,35V,10%,SOLID SEALED TANT,RADIAL,(SPRAGUE...
  • Page 55 Model 200T4G8 REF. DESIG. ETM P/N DESCRIPTION QUANTITY J16215-000 TEST JACK,GREEN,VERTICAL,(EF JOHNSON 105- 0854-001) J16216-000 TEST JACK,BLUE,VERTICAL,(EF JOHNSON 105-0860- 001) J18167-000 D-SUB,37 PIN,FEMALE,PCB MOUNT,RIGHT ANGLE (AMP 745784-4) J18180-000 CONN,D-SUB,15 PIN,MALE,STRAIGHT,PCB MOUNT (POSITRONIC MD15M3000) J31013-000 CONN,D-SUB,25 PIN,MALE,RIGHT ANGLE,PCB MOUNT,[AMP 747238-4] XJ1-XJ4...
  • Page 56 Model 200T4G8 REF. DESIG. ETM P/N DESCRIPTION QUANTITY U20730-000 IC,DUAL J-K FLIP FLOP W/RESET,(7473) (SSD) U21328-000 IC,QUAD 2 INPUT NAND,SCHMIDTT TRIGGER,(74HC132) (SSD) U21388-000 IC,3 TO 8 DECODER/DEMULTIPLEXER,INVERTING,(74HC138) (SSD) U21536-000 IC,DUAL 4 INPUT DIGTAL MULTIPLEXER,(74F153) (SSD) U22598-000 IC,8 BIT ADDRESSABLE LATCH W/RESET,(74HC259)

  • Page 57: Parts List-200 Watt C Band Twta, Ar 10-1/2, A28880-932

    Model 200T4G8 5.4.7 Parts List-200 Watt C Band TWTA, AR 10-1/2, A28880-932 REF. DESIG. ETM P/N DESCRIPTION QUANTITY A22520-090 C-BAND POWER SUPPLY FOR TWT 5889 (230V) A24324-000 HPA SYSTEM CONTROL FRONT PANEL ASSEMBLY A24380-030 MICROWAVE POWER ASSEMBLY 200C A24381-030 HPA CABINET, 200C 10-1/2 SERIES (DO NOT KIT)

  • Page 58: Recommended Spare Parts

    Model 200T4G8 Recommended Spare Parts A10007-000 Anode module assembly A10010-000 Heater power supply module A10017-090 PWM board A16487-001 Power board assembly A21457-001 High voltage filter assembly A21425-090 High voltage diode/cap assembly A23683-000 Power factor correction, 100-250V input A23687-001 Low voltage power supply module (220 V) E00809-000 Power supply, 28V, 150 W (Kepco FAW 28-3.5k)

  • Page 59: Sample Program For Ieee-488 Communication

    Model 200T4G8 SAMPLE PROGRAM FOR IEEE-488 COMMUNICATION 1000 ! *********************************************** 1010 IEEE-488 COMMUNICATIONS SOFTWARE 1030 7/24/92 AARON D. McCLURE 1040 ! *********************************************** 1041 DIM F$[80] 1042 DIM A$[80] 1050 CLEAR SCREEN 1060 INPUT "INPUT COMMAND TO SEND TO POWER SUPPLY.
  • Page 60 Model 200T4G8 Rev. F...
  • Page 61 These modules are not field- repairable and should never be opened outside of AR’s Microelectronics Lab. The modules in these product lines have a security label on two sides of the modules between the housing and lid/cover. If the security label is removed and or cut, the warranty of the module will be voided.

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