AR 100A400AM20 Operating And Service Manual Download Page 16

Model 100A400AM20 

ii 

4.3

 

Troubleshooting ................................................................................................... 24

 

4.3.1

 

Power On Indication Doesn’t Display on Front Panel Vacuum Fluorescent Display 

(VFD) when POWER Switch is Depressed (Schematic 10042447) .................... 25

 

4.3.2

 

The Unit Cannot Be Operated Remotely ............................................................. 26

 

4.3.3

 

Thermal Fault (Schematic 10047796, 10039874) ................................................ 26

 

4.3.4

 

Interlock Fault (Schematic 10047796) ................................................................. 26

 

4.3.5

 

PS2 Fault (Schematic 10047796) ......................................................................... 27

 

4.3.6

 

Amplifier Faults (Schematics 10047796 and 10039874)..................................... 27

 

4.3.7

 

Low or No Power Output (DC Tests) (Schematic 10047796) ............................. 27

 

4.3.8

 

Low or No Power Output (RF Test) (Schematic 10047796) ............................... 28

 

 

FIGURES 

2-1 

Model 100A400AM20 Front Panel ....................................................................... 9 

2-2 

Model 100A400AM20 Rear Panel ....................................................................... 10 

4-1 

Saturated Power and Typical Response at -20 dBm Input ................................... 28 

 

TABLES 

2-1 

IEEE-488 Address Selection ................................................................................ 11 

2-2 

RS-232 Port Settings ............................................................................................ 12 

2-3 

RS-232 (DCE) Port Pinout Diagram DB-9 Female ............................................. 12 

2-4 

Fiber-Optic Port Settings ...................................................................................... 13 

2-5 

Relationship between DCP Controls and Remote Communication ..................... 14 

 

 

 

 

Summary of Contents for 100A400AM20

Page 1: ...Operating and Service Manual 100A400AM20 Model 10047767 Part Number Serial Number 160 School House Road Souderton PA 18964 215 723 8181 Fax 866 859 0582 www arworld us...

Page 2: ......

Page 3: ...ty Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements UL 61010 1 Issued 2012 05 11 Ed 3 Safety Requirements for Electrical Equipment for Measu...

Page 4: ......

Page 5: ...n folgenden Minimalwerte der Schirmd mpfung und Filterung in den unterschiedlichen Leistungsklassen empfohlen Hochfrequenzleistung min Schirmd mpfung 100 Watt 50 dB 101 1000 Watt 60 dB 1001 10 000 Wat...

Page 6: ......

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...

Page 8: ...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 9: ...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 10: ...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 11: ...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 12: ...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 13: ...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 14: ...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 15: ...s 14 2 4 6 1 Power On Off 15 2 4 6 2 Gain 15 2 4 6 3 Reset 15 2 4 6 4 Identity 16 2 4 6 5 IO Board Firmware Revision 16 2 4 6 6 State 17 2 6 6 7 Faults 100A400AM20 18 3 THEORY OF OPERATION 19 3 1 Intr...

Page 16: ...c 10047796 27 4 3 6 Amplifier Faults Schematics 10047796 and 10039874 27 4 3 7 Low or No Power Output DC Tests Schematic 10047796 27 4 3 8 Low or No Power Output RF Test Schematic 10047796 28 FIGURES...

Page 17: ...remote via a computer interface control of the amplifier including adjustment of the amplifier s RF Gain during CW mode operation and provides graphical displays of the amplifier s Forward and Reflec...

Page 18: ...air into or exiting from the unit will not be restricted diverted or re circulated through the unit itself in particular the flow of warm air exiting the rear of the amplifier should not be impeded Do...

Page 19: ...is a solid state self contained air cooled broadband amplifier designed for applications requiring RF power down to 4kHz such as for MIL STD 461 CS114 testing This amplifier along with ARI BI00400 cu...

Page 20: ...or Pulse modulation appearing on input sig nal THIRD ORDER INTERCEPT 55 dBm typical NOISE FIGURE 8 dB typical HARMONIC DISTORTION Minus 20 dBc maximum at 75 watts 30 dBc typical at 50 watts 01 400MHz...

Page 21: ...Page 3 100A400AM20 4kHz 400MHz Graphs...

Page 22: ...Page 4 100A400AM20 4kHz 400MHz Graphs...

Page 23: ...ngineer 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 Approved for public release by AR RF Microwa...

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Page 25: ...stand 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 accid...

Page 26: ...s rear panel is set to the 1 on position 5 Press the POWER switch the front panel vacuum fluorescent display VFD should read POWER ON when power is applied NOTE The amplifier changes state each time t...

Page 27: ...488 bus is already using address 1 reset the switch to a vacant address Resetting the address requires re booting the unit Specific IEEE 488 bus commands depend on which software package you are using...

Page 28: ...Pin 3 RD Pin 4 DTR Pin 5 GND Pin 6 DCR Pin 7 CTS Pin 8 RTS Pin 9 Unused 2 4 3 Fiber Optic Communications The Fiber Optic port is a serial communications bus All commands and queries through this port...

Page 29: ...SB hub must be used A cable carrying the official USB logo is recommended When connected to a PC running Windows 2000 or XP a window will pop up labeled Hardware Wizard If this PC has National Instrum...

Page 30: ...y be sent in Remote mode All spaces in commands and queries are indicated by space A COMMUNICATIONS_ERROR LF can occur if the time between commands or queries is too short or the internal RS 485 link...

Page 31: ...95 steps of resolution Syntax Gxxxx Parameters Gain xxxx xxxx 0000 to 4095 Where 0000 Minimum gain 4095 Maximum gain Response Format Same as command syntax Example To set the amplifier to minimum gain...

Page 32: ...entity of the amplifier send the following command IDN LF Response AR RF MICROWAVE INST 100A400AM20 1 0 LF 2 4 6 5 IO Board Firmware Revision Query to get the firmware revision of the IO Board Syntax...

Page 33: ...e amplifier The definitions of these bit positions can be found in the table below Note Bits labeled NOT USED may be read as a bit state of 1 or 0 BIT STATE BIT POSITION BIT DESCRIPTION 0 1 NOTES x 0...

Page 34: ...he amplifier Syntax FSTA Parameters None Response Format FSTA space 00xx Where xx 00 to 04 Hexadecimal xx Dec Description 00 0 No Fault 01 1 Interlock 02 2 PS2 03 3 A2 Thermal 04 4 A2 Amp Example To f...

Page 35: ...chematic 10047615 The Pre Amplifier PWB Assembly consists of a variable attenuator circuit Q1 Q4 a gain stage U4 a resistive splitter R13 R14 R16 an RF power detector U6 and associated control circuit...

Page 36: ...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 operating conditions It also monitors the module t...

Page 37: ...utputs 4 Digital outputs 6 Digital inputs 5 volt tolerant 24 Analog outputs 2 2 channel encoder input 1 Inputs for a keypad 6 Display connectors 1 Serial communication jacks 2 3 4 2 A5 Interface Board...

Page 38: ...Model 100A400AM20 22 Rev A...

Page 39: ...ir However due to the importance of the amplifier s alignment it is recommended that when failure is caused by breakdown of any of the components in the signal circuits the amplifier be returned to th...

Page 40: ...viduals who are familiar with the handling of microwave GaN HEMTs LDMOS and other ESD sensitive devices Troubleshooting the Model 100A400AM20 in a logical manner can speed the solution to a problem Th...

Page 41: ...s not running check to see that the unit is plugged into a live outlet and that the AC line cord is plugged securely into the unit 4 Check the 5V housekeeping output voltage from PS1 this voltage shou...

Page 42: ...ling fans are operating normally check the voltage at the A4 Control Fault Board J13 Pin 28 should be 0 1V 3 If the voltage on A4 J13 pin 28 is high check the connection to J3 5 and C53 4 3 4 Interloc...

Page 43: ...tors are normal the front panel display reads Power On and the cooling fans B1 B2 are operating 1 Check the position of the RF Gain control is it set to maximum gain 2 Check the RF input to the unit i...

Page 44: ...uld be completed before conducting the RF tests specified in the following sections 1 The Model 100A400AM20 s saturated power and typical gain response at 20 dBm input is shown in Figure 4 1 The actua...

Page 45: ...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...

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