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Eni 3100LA, Operating And Service Instructions, Page: 15 / 32

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Eni 3100LA Operating And Service Instructions Download Page 15

Summary of Contents for 3100LA

Page 1: ...Copyright 19 tiy resor ...

Page 2: ...the Instrument must be returned transportation charges pre paid to the factory or our authorized service facility If in our opinion the fault has been caused by misuse or abnormal conditions of operation repairs will be billed at cost In this case an estimate will be submitted before the work is started There are no other warranties expressed or implied Including any warranty of merchantibility or...

Page 3: ...5 2 5 1 4 RF Output Power Test 5 2 5 1 4 1 Measurement Procedure 5 2 5 1 5 RF Output Distortion Test 5 2 Paragraph Page 5 1 5 1 Measurement Procedure 5 2 CHAPTER 6 TROUBLESHOOTING AND REPAIR 6 1 6 1 Troubleshooting 6 1 6 2 Locating Faulty RF Module 6 2 6 2 1 General 6 2 6 2 2 Isolating Amplifier Problem 6 2 6 2 2 1 Output Combiner Test IA235 3100LA 14402 6 3 6 2 2 2 RF Power Amplifier Module Test ...

Page 4: ...er Sweep Test Set Up 6 3 7 1 RF Power Amplifier Schematic Diagram 7 3 7 2 Power Distribution 3100LA 12401 7 4 Table Page 1 1 Specifications 1 2 2 1 Line Voltage Connections 2 1 3 1 Front and Rear Panel Devices 3 2 6 1 Troubleshooting Guide 6 1 6 2 Regulator Connections 6 5 7 1 Replacement Parts List 7 5 7 2 Glossary of Abbreviations 7 3 7 3 List of Manufacturers 7 9 ...

Page 5: ... without causing failure or oscillation Output RF voltage is displayed on the front panel meter The Model 3100LA is packaged for bench mounting and is shipped with rack mounting adapters Its integral power supply and cooling operate from a 100 107 5 1150 120 or 200 125 230 240VAC 50 60HZ main supply The Model 3100LA will raise the power level of signal sources and generators without requiring tuni...

Page 6: ...ERING POWER REQUIREMENTS OPERATING TEMPERATURE SIZE WIEGHT CONNECTORS 59dBm 50 ohms Less than 1 5 Less than 2 5 lOdB Maximum Unconditionally stable unit will not oscillate for any condition of load and source impedance Unit will withstand more than 16 dB of overdrive input signal of IV RMS for all output load conditions Average reading voltmeter calibrated in RMS volts for a sine wave with an accu...

Page 7: ...nates and the fan motor is operating normally b Perform RF Output Power Test Section 5 1 4 2 2 PREPARATION FOR USE 2 2 1 Power Requirements The Model 3100LA requires a 50 60HZ single phase power source capable of supplying llOOW The unit must be adjusted to accommodate the available AC line voltage This is accomplished by connecting the jumpers to the correct terminals of the terminal strip TBl in...

Page 8: ...N CHART Nominal Line Voltage Jumpers AC Hot Black AC Neutral White White Black lOOVAC 1 2 3 4 1 4 107 5VAC 1 2 5 6 1 6 115VAC 1 2 7 8 1 8 120VAC 1 2 9 10 1 10 200VAC 2 3 1 4 215VAC 2 5 Remove 1 6 230VAC 2 7 Jumper 1 8 240VAC 2 9 1 10 ...

Page 9: ...2 372 4 ...

Page 10: ...of a pulse yet the meter reading will be low due to the low duty cycle of the pulse Input 3 2 CONTROLS INDICATORS AND CONNECT ORS Front and roar panel devices are described in Table 3 1 3 3 OPERATING PROCEDURE Refer to the following procedure as a guide to oper ating the Model 3100LA e The input and output are connected via the front panel type N conr ectors to the sigrial source and load respecti...

Page 11: ... voltage pick off is mounted directly behind the front panel at the output connector Type N for connection of the driving generator Input imp edance is 50 ohms No more than 0 25 volts is required to obtain saturated output Up to 1 4 volts peak can be supplied without causing dam age however no additional power output can be expected Output Connector Type N for connection of amplifier output to loa...

Page 12: ...RF output is fed into tee output type N connector and to die RF voltmeter module E3100LA 14403 The RF volt meter module provides a DC signal to the front pane meter proportional to the output level The power dis tribution E3100LA 12401 provides cooling and DC power to the entire unit The five regulated power supplies are each capable of supplying 26 4 volts at a current of 5 amperes 4 2 1 Driver A...

Page 13: ...P A EATSiNK ASSY 5i00LA 3403 I ft A M ATS NK i 5iOOLA i3 04 ...

Page 14: ...imary of transformer T1 See power connections section 2 2 1 The secondary of T1 supplies voltage to three full wave bridge rectifiers CR1 CR2 and CR3 on the baseplate assembly 3100LA 13401 The output of each rectifier Is connected to capacitor Cl and C3 respectively The outputs of CRT CR2 and CR3 are fed to the collectors of Q1 Q2 and 33 located on the power supply assemblies 3100LA 13406 These po...

Page 15: ...Variation Teat The purpose of this test is to verify the g in arid gain flatness versus frequency of the McKie 31001A 5 1 3 1 CALIBRATION OF SET UP a Set up test equipment as sho m in figure 5 1 Figure 6 1 Gain and Gain Variation Test Set Up b Set the oscilloscope to DC time CM to Ext X and vertical gain to 10 mV CM c Set Sweep Generator to the S S mode with start frequency at 1 MHz and the stop f...

Page 16: ...fc c K c RF I CTKjv Figure 5 3 RF Output Distortion Test Set Up b Set the power meter to 10 wan range With the 30 dB serl attenuator this corresponds to a full scale deflection of 100 watts c Set the Generator Swe jer to CW and frequency to 150 MHz b Set the power meter to the 3 watt range With the 30 dB series attenuator this cor responds to a full scale deflection of 300 watts c Set the Sweep Ge...

Page 17: ...Power Lamp does not light Burned out bulb Check for 26 4 volts across bulb Defective power supply Perform test in section 6 3 2 Thermal switch open If TS1 contacts do not close after unit has cooled replace thermal switch Defective power switch Replace switch SI Blown fuse Replace fuse with 15 amp slo biown 3AG Power Lamp dim Power supply out of adjustment Perform power supply adjustment section 6...

Page 18: ...Meter Tighten all RF connectors Excessive ripple on gain versus frequency sweep of amplifier Ripple on power supply Perform DC power supply test section 6 3 2 6 2 LOCATING FAULTY RF MODULE 6 2 1 General The input and output impedance of each of the RF modules in the Model 31 OOLA is 50 ohms Therefore they can be disconnected from each other at any point and tested independently The following sec t...

Page 19: ... 15 VDC and the emitter volt ages of Q2 Q5 are 2 80 VDC 15 VDC See Figure 7 1 e If all voltages are within tolerance proceed to the low power sweep test 6 2 2 2 2 Low Power Sweep Test a Set Up the test equipment as shown in Figure 6 1 To check the remaining channels connect the RF detector to each connector J16 through J18 succes sively while terminating all the remaining connectors with the three...

Page 20: ...generator sweeper to CW and the fre quency to 1 MHz Adjust the output level so that 100 warts is indicated on the power meter c Adjust potentiometer R5 located on the RF voltmeter module so that the front panel meter indica 100 watts d Set the generator sweeper to 150 MHz and adjust the output level so that 100 watts is in dictated on the power meter Move resistor R2 on the RF voltmeter module fro...

Page 21: ...located on top of the cover Carefully lift the cover up To replace the cover simply reverse the procedure When replacing the cover care should be taken that the cover does not come into contact with the interna cabling 6 4 4 Driver Amplifier Heatsink Assembly 31IJ0LA 13406 a Remove the six 4 40 screws holding the module to the power amplifier heatsink assemblies b Remove the input cable from J2 on...

Page 22: ...fier heatsink assembly 3100LA 13405 and power supply regulator board 3100LA 14404 per sections 6 4 4 and 6 4 5 b Drop rear pane by releasing its 4 6 32 screws c Remove two 6 32 screws holding the assembly to the baseplate a Remove the heatsink assembly 3100LA 13403 or 13404 see section 6 4 7 b Remove the four 440 screws and nuts which hold the module to the heatsink c Remove five 8 32 reduced nuts...

Page 23: ...r Table 7 2 pro vides 3 reference glossary of abbreviations used in the parts list 7 3 LIST OF MANUFACTURERS Table 7 3 provides a correlation of the manufacturers federal supply code numbers used in the parts list with the names and addresses of the manufacturers If ENI s manufacturer code number 10226 appears that part must be obtained directly from Electronic Navigation industries Inc 7 4 ORDERI...

Page 24: ...P A HEATSINK ftSSY 3100LA 13403 ...

Page 25: ...X X 5 m cj D X ij 1 U X 3 UJ QC Qi O LJ H Crt l J o X 1 to X o a X IX 2 O 0 u CJ n X bJ UJ d a o Q u 1 1 bJ X X 0 UJ X tx 1 X O M X X X J o X at X X UJ X X X X UJ I a X X X X to X h X a t 1 X Id S o 0 z 3 r X H a X UJ Q X iX 7 If X g X O X g X h I O O to to S X X X o X o o X f to X cn P X p o sSg X ct o X h o UJ S X X X T X X h o X U o X X 8 U X X X jj X 8 X X X n X X P 3 X g r X y o _J_ o XX own ...

Page 26: ......

Page 27: ...I 7Z b Ld O X X O U CH X r o X X X X u U Qi U1 a X cz r a in CO u CO us X LJ ZD __J ZD XXX a X cr 3 3 X X O X O h o y y CO X a U X X X U y X l X X X X XXX ox X HH g X X X X 3 U 05 H O X y 1 3 O Id OX U X H X X 1a V i ...

Page 28: ...10226 Metal Oxide A234R19 Res 20 ohm 2W 5 10226 Metal Oxide A234R32 Res 120 ohm 2W 5 10226 Metal Oxide A234R24 Res 150 ohm 2W 5 10226 Metal Oxide A234R25 33 VARIABLE VALUE 10226 Metal Oxide A234R18 Res 82 ohm 3W 5 10226 Metal Oxide A234C2 4 8 Capacitor 033uF 50V 36346 C320C333M5U ICA C9250 A234C1 3 5 10 13 15 Capacitor luF 50V 36346 C330C104M5U ICA C9250 A234C6 7 12 14 16 17 18 A234C19 Capacitor 4...

Page 29: ...AMPLIFIER COMT A166R4 Res 75 ohm 1 2W 5 10226 Carbon Film 15 18A166R2 3 Res 390 ohm 1 2W 55 1022 6 Carbon Film A166R27 42 Res 10 ohm IW 5 10226 Metal Oxide A166R8 11 Res 12 ohm IW 5 10226 Metal Oxide A166R44 Res 51 ohm 2W 5 10226 Metal Oxide A166R19 22 Res 68 ohm 2W 5 10226 Metal Oxide 7 ...

Page 30: ...sistor 10226 ENl 1 R1 R2 Resistor ISohm 5W 10 75042 PW 5 POWER SUPPLY REGULATOR 10226 3100LA 14404 A236RI 5 RES 47K ohm 1 4W 5 10226 Carbon Film A236R6 10 Res 2 7K ohm l 2W 2 16299 HC 5 A236R11 15 Res 7 5K ohm 1 2W 2 16299 HC 5 A236R16 20 Potentiometer 2 0 Oohm 32997 3386T 1 201 A236R21 25 Potentiometer 500ohm 32997 3386T 1 501 A236C1 10 Capacitor 033uf 50V 36346 C320C333M5U ICA C9250 A236C11 20 C...

Page 31: ...e 27hHv 99800 2890 30 A166L2 6 Choke 1 BOMHy 99800 3500 12 A166Q1 5 Transistor 10226 ENI 16 A166TM6 Transformer 10226 OUTPUT COMBINER 10226 3100LA 14402 A235R1 Res 50 ohm BOw 10226 MR250 875 A235R2 Res 100 ohm BOw 10226 MR250 875 A235C1 Capacitory 33pF 09023 CM05ED330JO3 A35C2 Capacitor 24pF 09023 CM05ED240JO3 A235T1 4 Transformer 10226 R F VOLTMETER 10226 3100 LA 14403 A168R6 Res 22 ohm Viw 5 102...

Page 32: ...tronic Navigation Industries Rochester NY 12715 American Magnetics Corp Carterville IL 13511 Amphenol Corp Los Gatos CA 16299 Corning Glass Raleigh NC 24840 Hewlett Packard Co Palo Aito CA 27191 Cutler Hammer Milwaukee Wl 28875 IMC Magnetics Rochester NH 29990 American Technical Ceramics Huntington Station NY 32171 Modutec Inc Norwalk CT 32997 Bourns Inc Riverside CA 36346 Union Carbide IKemet New...

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