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FIGURE A N D INDEX NUMBERS

Items in this section are referenced by figure and index numbers to the illustrations

which appear on the pullout pages immediately following the Diagrams section of this

instruction manual.

INDENTATION SYSTEM

This mechanical parts list is indented to indicate item relationships. Following is an

example of the indentation system used in the Description column.

A s s e m b ly a n d / o r C o m p o n e n t

D e t a i l P a r t o f A s s e m b ly a n d / o r C o m p o n e n t

m o u n tin g h a r d w a r e fo r D e t a i l P a r t

P a rts o f D e t a i l P a r t

m o u n tin g h a r d w a r e fo r P a rts o f D e t a i l P a r t

m o u n t in g h a r d w a r e f o r A s s e m b ly a n d / o r C o m p o n e n t

Mounting hardware always appears in the same indentation as the item it mounts,

while the detail parts are indented to the right. Indented items are part of, and included
with, the next higher indentation.

Mounting hardware must be purchased separately, unless otherwise specified.

PARTS ORDERING INFORM ATION

Replacement parts are available from or through your local Tektronix, Inc. Field Office

or representative.

Changes to Tektronix instruments are sometimes made to accommodate improved

components  as  they  become  available,  and  to  give  you  the  benefit  of  the  latest  circuit
improvements  developed  in  our  engineering  department.  It  is  therefore  important,  when
ordering  parts,  to  include  the  following  information  in  your  order:  Part  number,  instru
ment  type  or  number,  serial  or  model  number,  and  modification  number  if  applicable.

If a part you have ordered has been replaced with a new or improved part, your

local Tektronix, Inc. Field Office or representative will contact you concerning any change
in part number.

Change information, if any, is located at the rear of this manual.

ABBREVIATIONS A N D SYMBOLS

For an explanation of the abbreviations and symbols used in this section, please refer

to the page immediately preceding the Electrical Parts List in this instruction manual.

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Содержание 1L20

Страница 1: ...INSTRUCTION I V I A I N J L J A I Serial Numher 0 TYPE 1120 SPECTRUM ANALYZER Tektronix Inc S W M illikan W ay P O Box 500 Beaverton Oregon 97005 Phone 644 0161 Cables Tektronix 070 0519 00 366...

Страница 2: ...ly to the field therefore all requests for repairs and re placement parts should be directed to the Tektronix Field Office or representative in your area This procedure will assure you the fastest pos...

Страница 3: ...ls Section 7 Electrical Parts List Mechanical Parts List Information Section 8 Mechanical Parts List Section 9 Diagrams Mechanical Parts List Illustrations Accessories Abbreviations and symbols used i...

Страница 4: ...Type 1L20 Fig 1 1 Type 1L20 Spectrum Analyzer...

Страница 5: ...vity See Table 1 1 Dial Accuracy 2 MHz 1 of dial reading Dispersion kHz CM RANGE Range 1 kHz cm to 500kHz cm and 0 dispersion In 1 2 5 sequence Accuracy 3 Linearity 3 MHz CM RANGE Range 2MHz cm to lOM...

Страница 6: ...ator 300 Hz At L O fundamental with phase lock Phase Lock Internal Markers 1 MHz 100 Hz Crystal controlled External Marker Requirements 1 MHz to 5 MHz 1 V to 5 V p p Dynamic Range LOG 4 0 dB LIN 2 6 d...

Страница 7: ...and 4200 MHz to the appropriate RF INPUT connector and switch the RF INPUT switch to the appropriate position BAND 1 10 275 MHz BANDS 2 5 275 4200 MHz If the signal strength is greater than 30 dBm 7 m...

Страница 8: ...nd i cator section next to the front panel turning the DIS PERSION sn itch and the knurled section away from the front panel turning the RESOLUTION switch VERTICAL DISPLAY Provides a means of selectin...

Страница 9: ...r a marker display about 3 centimeters in height d Use the FINE IF CENTER FREQ control to keep the markers aligned with the graticule lines while setting the DISP CAL adjustment for 1 marker 2 centime...

Страница 10: ...splayed as a conventional analog time versus signal amplitude display An uncalibrated GAIN control provides variable sensitivity Maximum sensitivity is approvimately 0 1 volt per centimeter The impeda...

Страница 11: ...F CENTER FREQ controls to midrange 2 Center the signal on the graticule with the RF CENTER FREQ control 3 Connect the external reference signal if used to the REF FREQ IN connector and set the REF FRE...

Страница 12: ...t of usable sweep speed to avoid a distorted display the sweep rate must be reduced to about 50 ms cm or slower The video filter will be useful in the following cases a When attempting to observe two...

Страница 13: ...195 u D TB2 2 v4 where S Sensitivity S0 Sensitivity at very slow sweep speeds and zero dispersion D Dispersion in hertz T Sweep time in seconds B Bandwidth in hertz Usually the resolution of the Spect...

Страница 14: ...between signals that are up to 100 MHz apart The measurement is made as follows 1 With the two signals displayed on the screen set the DISPERSION RANGE and DISPERSION switches so that the signals are...

Страница 15: ...nd each line on the j I UUL b screen is equivalent to one pulse It might be helpful if the RESOLUTION control is uncoupled and reset for better resolu tion 3 Set the sweep controls of the oscilloscope...

Страница 16: ...NOTES...

Страница 17: ...rwise by such factors as oscillator drift and microphonics The instantaneous RF voltage being generated by the Local Oscillator is sampled by the Phase Detetctor at a rate deter mined by the reference...

Страница 18: ...Fig 3 1 Block Diagram of the Type 1L20 N Circuit Description Type 1L20...

Страница 19: ...ge common emitter IF amplifier tuned for a wide band response centered around 200 MHz The signal from Q130 is combined in the amplifier mixer stage of Q140 with the Swept Frequency Oscillator signal c...

Страница 20: ...ut circuits of the attenuator to prevent harmonics from the following 70 MHz Oscillator from feeding back to mix with the Swept Frequency Sweeper Oscillator signal to generate spurious signals Narrow...

Страница 21: ...unt Xc of the crystal Hence with C504 properly adjusted Y501 exhibits no parallel resonance and assumes the impedance versus frequency curve of Fig 3 4 Variable Resolution Filter The resolution of the...

Страница 22: ...hape the 100 kHz response and suppresses spurious responses generated by Y610 V620 and Q650 further amplify and isolate the 5 MHz signal before it is detected by D657 for the TO RECORDER output and by...

Страница 23: ...are kept properly lubricated Use a cleaning type lubricant such as Cramoline on shaft bushings plug in con nector contacts and switch contacts Lubricate the switch detents with a heavier grease Beacon...

Страница 24: ...d color cod ing If the resistor has three significant figures with a multi plier the resistor will be EIA color coded If it has four significant figures with a multiplier the value will be printed on...

Страница 25: ...nd connectors to prevent pinching and straining of the connections When replacing the DISPERSION RANGE switch be sure its shaft is properly coupled to SW365 Also check the operation of the DIS PERSION...

Страница 26: ...tch into place with a small screwdriver 5 Replace the nuts securing the front panel controls and the rear tab IMPORTANT Be sure the correct nut is used to secure the INT 1 MHz REF FREQ switch Because...

Страница 27: ...used to establish a better bond to the plated notches in the ceramic strip This bond may be broken by repeated use of ordinary tin lead solder or by excessive heat Occasional use of ordinary 60 40 so...

Страница 28: ...usual trouble symptoms The quickest way to check the operation of the oscilloscope is with another vertical plug in unit if one is available If faulty operation is still noted with a different plug in...

Страница 29: ...s Be sure that the test probes are well insulated to prevent accidental shorting of the compo nents For checking waveforms use a test oscilloscope which has the following minimum specifications Bandwi...

Страница 30: ...subject to the same conditions If the original transistor is good return it to the same socket Unnecessary replace ment of transistors is not only expensive but may also result in needless recalibrati...

Страница 31: ...rted or partially shorted inductors can usually be found by checking the response to high fre quency signals Capacitors Leaky or shorted capacitors can best be detected by checking resistance with an...

Страница 32: ...Maintenance Type 1L20 4 10 Fig 4 6 Phase Lock and Recorder Detector Circuit Boards...

Страница 33: ...No 011 0059 00 6 Coaxial Cable with BNC connectors 3 needed Tek tronix Part No 012 0057 00 7 Connector Adapters Type BNC female to Type GR Tektronix Part No 017 0063 00 General Radio No 874 QBJA Type...

Страница 34: ...tal shift of the pip should not be more than 1 centimeter when the DISPERSION RANGE con trol is changed to the kHz cm position 3 Set Front Panel DISP CAL Adjustment a Preset the controls of the Spectr...

Страница 35: ...POS IF ATTEN DISPERSION RANGE DISPERSION COUPLED RESOLUTION VIDEO FILTER VERTICAL DISPLAY RF INPUT RF CENTER FREQ FINE FREQ Spectrum Analyzer as follows Position the trace to the bottom line of the g...

Страница 36: ...ON VERTICAL DISPLAY RF INPUT Position the trace to the bottom line of the graticule Midrange 000 Midrange MHz CM 10 LOG BANDS 2 5 b Apply 100 MHz and 10 MHz markers from the Time Mark Generator to the...

Страница 37: ...e the RF CENTER FREQ from 225 MHz to 275 MHz and check that the signal display does not drop below the size noted in step f h Apply a 50 dBm 350 MHz signal from the signal gen erator to the BANDS 2 5...

Страница 38: ...tolerance the instru ment should be recalibrated as directed in Section 6 b Set the IF CENTER FREQ controls to midrange c At each DISPERSION CM setting of Table 5 3 readjust the DISP CAL adjustment t...

Страница 39: ...equency at which the Analyzer display falls to 2 8 centimeters This frequency should be 1 6 Hz f Apply a 50 kHz signal from the Constant Amplitude RF Generator to the VIDEO INPUT connector of the Anal...

Страница 40: ...al off the screen with the IF CENTER FREQ control and center the tunable signal on the CRT with the RF CENTER FREQ control i Turn the INT 1 MHz REF FREQ to OFF The display must not show more than 0 8...

Страница 41: ...67 0518 00 4 Calibrated Amplitude Calibrated Frequency RF Gen erators with frequency range 10 MHz to 4200 MHz fre quency accuracy 1 signal amplitude 100 dBm to 30 dBm amplitude accuracy 1 dB and outpu...

Страница 42: ...Calibration Type 1L20 4B 40 4D 4E 6 2 Fig 6 1 Recommended equipment for calibrating the Type 1L20...

Страница 43: ...Calibration Type 1L20 10 11 12 13 14 15 6 3 Fig 6 2 Recommended Calibration tools and equipment...

Страница 44: ...adjust midway between avalanche and free run Minimum jitter Check for voltage swing from 4 volts to 10 volts at Pin D as FINE FREQ control is rotated through range Check for 7 volts at Pin D with FIN...

Страница 45: ...check Table 2 1 or the oscilloscope instruction man ual to determine the amplitude of the sawtooth output volt age and set SW201 slide switch mounted on the rear plate of the Analyzer to the appropria...

Страница 46: ...odu 2 connector 3 Connect the Harmonic Modulator s Modu Harm Out connector to the Analyzer s BANDS 2 5 RF INPUT con nector 4 Set the Modulator s controls as follows Modu Freq 2 to ON 60 MC Trap to Out...

Страница 47: ...te directions so as to keep the display centered readjust R368 for 1 marker 2 centimeters and recheck the dispersion at the ends of the IF CENTER FREQ range Repeat this procedure until the dispersion...

Страница 48: ...s should be within 2 4 millimeters of the appropriate grati cule lines 4 Adjust Resolution O a Connect the equipment as shown in Fig 6 6 The test oscilloscope probe is on Pin B of the IF Chassis squar...

Страница 49: ...position i Adjust R543 100 kHz Resol Cal for a signal 1 2 centi meters wide at 3 centimeters above the baseline See Fig 6 10 Adjust the GAIN control for 6 centimeters display during this step Fig 6 9...

Страница 50: ...in posi tion as the DISPERSION COUPLED RESOLUTION control is rotated f Change the DISPERSION RANGE to kHz CM g Adjust R368 kHz CM Cal so that the signal does not shift in position when the DISPERSION...

Страница 51: ...t O a Preset the controls of the Analyzer as follows POS IF ATTEN IF CENTER FREQ FINE IF CENTER FREQ DISPERSION RANGE DISPERSION COUPLED RESOLUTION VERTICAL DISPLAY INT 1 MHz REF FREQ Position the tra...

Страница 52: ...g At the same time while changing the RF CENTER FREQ control setting drepress the LOCK CHECK pushbutton and check for phase lock zero beats about every 1 MHz Check for a phase locked display at 10 MHz...

Страница 53: ...se O ff Down LIN BANDS 2 5 c Set the generator for a 200 MHz signal d Set the Generator Output controls for a 4 centimeter display times the noise level POS IF ATTEN DISPERSION RANGE DISPERSION COUPLE...

Страница 54: ...Adjust LI44 see Fig 6 18 for maximum display ampli tude k Change the signal frequency to 65 MHz l Recenter the display with the IF CENTER FREQ control m Adjust LI47 see Fig 6 18 for mimimum display a...

Страница 55: ...pplied slowly turn the RF CENTER FREQ control through its range There should be no spurious signals greater in amplitude than twice the noise level c If a spurious signal is observed position it to th...

Страница 56: ...ntrol of the signal Generator e Adjust the Analyzer GAIN control until the average noise level is one centimeter in amplitude f Adjust the RF Atten control of the generator so that the displayed signa...

Страница 57: ...isable j Change the VERTICAL DISPLAY to SQ LAW k Set the generator RF Atten to 50 dBm POS IF ATTEN DISPERSION RANGE DISPERSION COUPLED RESOLUTION VIDEO FILTER GAIN VERTICAL DISPLAY RF INPUT Calibratio...

Страница 58: ...e noted in step o 16 Check IF Attenuator Accuracy a Set up the eguipment as shown in Fig 6 20 b Preset the controls of the Spectrum Analyzer as follows DISPERSION RANGE MHz CM DISPERSION COUPLED RESOL...

Страница 59: ...l for a 6 centimeter display d Measure the TO RECORDER signal with the test oscillo scope Check for 12 millivolts to 20 millivolts 18 Check VIDEO FILTER a Connect the 1 MHz CAL MARKERS OUT signal to t...

Страница 60: ...t control of the generator to obtain 4 centimeters of deflection d Monitor the signal amplitude with a DC coupled test oscilloscope for constant amplitude and decrease the output frequency of the gene...

Страница 61: ...red on the screen e Adjust the GAIN control for six centimeters of deflec tion f Adjust the POS control for a display similar to Fig 6 27 g Set the oscilloscope sweep rate to 20 mS CM The dis play mus...

Страница 62: ...pe drive to reset the tape 5 Check the dial tape tracking at several points includ ing each end of the dial tape The oscillator frequency is always 200 MHz above the dial tape reading The oscillator f...

Страница 63: ...t the varactor bias terminal 10 Set the frequency meter to indicate 210 MHz Set the dial tape to 10 and adjust the Band 1 inductance adjustment see Fig 6 30 to tune the oscillator frequency to 210 MHz...

Страница 64: ...k screw on the left side of the Bands 2 5 Local Oscillator see Fig 6 28 This screw is located on the left side slightly forward of the oscillator center Do not confuse this screw with the high frequen...

Страница 65: ...inimum value SN or S N GR General Radio greater than T TC H or h henry TD h height or high THB hex hexagonal e HF high frequency thk HHB hex head brass THS HHS hex head steel tub HSB hex socket brass...

Страница 66: ...umber instrument type or number serial or model number and modification number if applicable If a part you have ordered has been replaced with a new or improved part your local Tektronix Inc Field Off...

Страница 67: ...05 00 0 8 8 5 pF Cer Var C83 281 0616 00 6 8 pF Cer 200 V C84 281 0105 00 0 8 8 5 pF Cer Var C86 281 0616 00 6 8 pF Cer 200 V C87 281 0105 00 0 8 8 5 pF Cer Var C89 281 0616 00 6 8 pF Cer 200 V C90 28...

Страница 68: ...9 00 0 001 pF Cer 500 V C310 283 0065 00 0 001 jaF Cer 100 V 5 C311 281 0613 00 10 pF Cer 200 V 10 C314 283 0563 00 1000 pF Mica 500 V 10 C315 281 0610 00 2 2 pF Cer 200 V C320 283 0039 00 0 001 juF C...

Страница 69: ...Cer 500 V 283 0001 00 0 005 ixF Cer 500 V 281 0564 00 24 pF Cer 500 V 5 281 0579 00 21 pF Cer 500 V 5 281 0550 00 120 pF Cer 500 V 10 281 0511 00 22 pF Cer 500 V 10 283 0001 00 0 005 xF Cer 500 V 283...

Страница 70: ...857 283 0127 00 2 5 pF Cer 100 V C859 283 0065 00 0 001 XF Cer 100 V 5 C876 283 0059 00 1 jxF Cer 25 V 8 0 2 0 C883 283 0065 00 0 001 xF Cer 100 V 5 C890 283 0081 00 0 1 xF Cer 25 V 8 0 2 0 C892 283 0...

Страница 71: ...HD1841 D846 152 0112 00 Snap Off D851 D852 152 0152 00 GaAs 1 pair D856 D857 152 0152 00 GaAs 1 pair Connectors J1 131 0390 00 BNC panel mtd female J10 131 0372 00 Coaxial J14 131 0372 00 Coaxial J18...

Страница 72: ...108 0381 00 LI 01 108 0371 00 LI 02 108 0370 00 LI 04 108 0369 00 LI 05 108 0401 00 LI 06 108 0369 00 LI 07 108 0370 00 LI 08 108 0371 00 LI 24 108 0373 00 LI 34 114 0205 00 LI 44 114 0206 00 LI 47 11...

Страница 73: ...6 00 LR423 108 0367 00 LR427 108 0367 00 LR433 108 0367 00 LR437 108 0368 00 LR443 108 0368 00 1 iH woundon a 1 kfi resistor 1 xH woundon a 1 kO resistor 1 xH woundon a 1 kO resistor 10 ju H wound on...

Страница 74: ...y 2N2501 Q830 151 0096 00 Silicon Selected from 2N1893 Q840 151 0108 00 Silicon Replaceable by 2N2501 Q860 151 0155 00 Silicon Replaceable by 2N2925 Q870 151 0155 00 Silicon Replaceable by 2N2925 Resi...

Страница 75: ...30 0 A W 5 315 0120 00 120 A W 5 315 0431 00 430 0 A W 5 315 0911 00 9100 A W 5 307 0107 00 5 6 O A W 5 315 0911 00 9100 A W 5 321 0332 00 28 kO VbW Prec 1 321 0358 00 52 3 kO y w Prec 1 311 0465 00 1...

Страница 76: ...322 0469 00 750 kO y4w 321 0423 00 249 kO w 315 0512 00 5 1 kO y4w 311 0443 00 2 5 kO 323 0402 00 150 kO y2w 315 0510 00 51 O y4w 316 0562 00 5 6 kO y4w 315 0202 00 2 kO y4w 316 0102 00 1 kO y4w 315...

Страница 77: ...kO 315 0562 00 5 6 kO 315 0102 00 1 kO 315 0101 00 100 O 315 0102 00 1 kO 301 0433 00 43 kO 315 0204 00 200 kO 311 0326 00 10 kO 315 0151 00 150 0 315 0161 00 160 0 315 0111 00 110O 315 0151 00 150 0...

Страница 78: ...k 2 1w 5 316 0471 00 47012 y4w 316 0471 00 47012 y4w 323 0438 00 357 k 2 y2w Prec 1 321 0288 00 9 76 k 2 y8w Prec 1 316 0103 00 10 k 2 w 321 0289 00 10 k 2 y8w Prec 1 321 0284 00 8 87 k 2 y8w Prec 1 3...

Страница 79: ...00 SW164 260 0642 00 SW169 260 0642 00 SW174 260 0642 00 SW179 260 0642 00 SW184 260 0642 00 SW201 260 0583 00 SW2203 260 0759 00 262 0763 00 SW230 260 0757 00 SW365 260 0643 00 SW5503 SW660 260 0758...

Страница 80: ...0 154 0499 00 Y 1506 V41 154 0499 00 Y 1506 V620 154 0040 00 12AU6 Cable Assemblies W1 175 0362 00 10 inch W14 175 0310 00 6 inch W19 175 0367 00 2 inch W34 175 0367 00 2 inch W40 175 0310 00 6 inch W...

Страница 81: ...gher indentation Mounting hardware must be purchased separately unless otherwise specified PARTS ORDERING INFORMATION Replacement parts are available from or through your local Tektronix Inc Field Off...

Страница 82: ...Mechanical Parts List Type 1L20 INDEX FIG 1 FIG 2 FIG 3 FIG 4 OF MECHANICAL PARTS LIST ILLUSTRATIONS FRONT REAR CHASSIS IF CHASSIS LOW PASS FILTER PHASE LOCK ASSEMBLY FIG 5 ACCESSORIES...

Страница 83: ...R internal 4 ID x 0 400 inch OD WASHER flat V4 ID x 3 4 inch OD NUT hex V4 32 x s 1 6 inch KNOB charcoal FINE IF CENTER FREQ knob includes SCREW set 6 32 x 3 u inch HSS RESISTOR variable mounting hard...

Страница 84: ...y4 ID x 0 400 inch OD NUT hex Y4 32 x 5 1 6 inch BUSHING y4 32 x 3 32 inch KNOB charcoal GAIN knob includes SCREW set 6 32 x 3 1 6 inch HSS SWITCH unwired VIDEO FILTER mounting hardware not included...

Страница 85: ...unting hardware not included w assembly BRACKET mounting SCREW 10 32x2 inches HHS WASHER flat 0 204 ID x 0 438 inch OD not shown WASHER flat 0 390 ID x 9 1 6 inch OD not shown SCREW 6 32x 5 i6 inch PH...

Страница 86: ...ex 5 8 24x 3 4 inch 210 1010 00 l WASHER flat 0 643 ID x 0 875 inch OD 61 119 0066 00 l ATTENUATOR pad 62 103 0057 00 i ADAPTER connector 63 175 0362 00 l ASSEMBLY cable 10 inches J1 to J10 64 179 104...

Страница 87: ...REW 4 40 x V4 inch PHS NUT keps 4 40 x V4 inch SWITCH unwired SW201 mounting hardware not included w switch SCREW 2 56 x 3 1 6 inch RHS NUT hex 2 56x 3 1 6 inch RESISTOR mounting hardware for each not...

Страница 88: ...3 2 x l9 32 inch long 43 358 0054 00 1 BUSHING V4 32 x 1 3 32 inch long 44 136 0235 00 1 SOCKET transistor dual mounting hardware notincludedw socket 45 354 0234 00 1 RING socket mounting 46 136 0181...

Страница 89: ...6 inch PHS 63 211 0504 00 1 SCREW 6 32 x V4 inch PHS 210 0457 00 1 NUT keps 6 3 2 x5 1 6 inch not shown 64 670 0099 00 1 ASSEMBLY circuit board RECORDER DETECTOR assembly includes 388 0650 00 1 BOARD...

Страница 90: ...CONNECTOR coaxial w hardware LUG solder SE 10 long CAPACITOR mounting hardware for each not included w capacitor FASTENER plastic STRIP terminal SHIELD filter CHASSIS mounting hardware not included w...

Страница 91: ...EW 4 40 x 3 1 6 inch PHS 37 175 0308 00 1 ASSEMBLY cable 2 inches J120 to J109 175 0313 00 1 ASSEMBLY cable 3 inches J147 to J151 175 0384 00 X ASSEMBLY cable black band 175 0384 01 X ASSEMBLY cable b...

Страница 92: ...UG solder y4 ID x 7 1 6 inch OD SE 210 0583 00 2 NUT hex V4 32 x 5 1 6 inch n 260 0642 00 1 SWITCH unwired INT 1 MHz REF FREQ mounting hardware not included w switch 210 0046 00 1 LOCKWASHER internal...

Страница 93: ...38 00 4 SCREW sheet metal A x z t inch PHS mounting hardware not included w assembly 34 213 0138 00 2 SCREW sheet metal 4 x 3 1 6 inch PHS 3 5 ASSEMBLY cable 2 inch J20 to J18 see FIG 2 REAR CHASSIS 3...

Страница 94: ......

Страница 95: ...I F O U T TO 150 1 3 0 M H z BMJD PNSS F IL T E R S TO LOCK CHECK SW ITCH t 1165 TYPE IU2LO SPECTRUM AMALYZER A R F a n d P H A S E L O C K B L O C K DIACRAH R F PH AS E LO CK B LO C K DIAGRAM...

Страница 96: ...4 7 VARIABLE RESOLUTION CIRCUITS IS OUTPUT AMPLIFIER 11 6 5 T Y P E I L Z O I L 3 0 S P E C T R U M A N A L Y Z E R A I F S Y S T E M B L O C K D I A G R A M IF SYSTEM BLOCK b I AG R A M...

Страница 97: ...N0I133S 3H ZHU i...

Страница 98: ...TYPE IL LO SPECTRUM ANALYZER A P H A S E LO C K U S C IR C U IT 2 PHASE LOCK CIRCUIT...

Страница 99: ...XER m oo i O T W I5Q T 5 M H z IF SIG NAL TO J151 5 SWEPT FREQ WEOO S IG N A L FROM 03fo3 Vvtuu SEE PARTS LIST FOR SEMIOONDVJC TOR T Y P E S a 1 1 66 TYPE IL2 O IL30 SPECTRUM ANALYZER A W I D E B A N...

Страница 100: ...T 1 SW EEPER CIRCUITS...

Страница 101: ...E RE NGE 3 W ID E BAND A M P LIFIE R M IX E R NARROW BAWD I F AMPLIFIER v TOMLIz OSCILLATOR M IX ER C I 5 I L I5 I C I 5 2 C IB 7 L I 8 8 G IB S F O R M A L O W P A S S F IL T E R C H A R A C T E R IS...

Страница 102: ...N B IFA M PL 70 MHz OSC 6...

Страница 103: ...I o o z o o 5 1166 TYPE IL Z 0 IL 3 0 SPEC TR U M ANALYZER A VARIABLE RESOLUTION CIRCUITS T V A R IA B L E RESOL...

Страница 104: ...5 M H z AM PLIFIE R D E TECTO RS TYPE IL Z O IL 3 0 S P E C T R U M ANALYZER A OUTPUT AMPLIFIER OUTPUT AMPLIFIER...

Страница 105: ...TYPE 1L20 SPECTRUM ANALYZER...

Страница 106: ...FIG 2 REAR CHASSIS TYPE 1L20 SPECTRUM ANALYZER 1 F IG 2...

Страница 107: ...FIG 3 IF CHASSIS T i T L A TYPE 1L20 SPECTRUM ANALYZER F I G 3...

Страница 108: ...FIG 4 LOW PASS FILTER PHASE LOCK ASSEMBLY FIG 4...

Страница 109: ...Fig Index No Tektronix Part No Serial M odel No Eff Disc Q t y Description 1 2 3 4 5 5 1 134 0052 00 l PLUG red 2 012 0091 00 l CORD patch BNC to banana red 3 134 0076 00 i PLUG protector 070 0519 00...

Страница 110: ...OPTIONAL ACCESSORIES TYPE 1L20 SPECTRUM ANALYZER...

Страница 111: ...t and component improvements to our instruments as soon as they are developed and tested Sometimes due to printing and shipping require ments we can t get these changes immediately into printed manual...

Страница 112: ...TYPE 1L20 TYPE 1L30 PARTS LIST CORRECTION CHANGE TO R823 30 0181 00 180 a 1W 10 Cl 366...

Страница 113: ...ST CORRECTION CHANGE TO l8o 4 114 0208 00 90 150 uH Var R260 321 0423 00 249 kft 1 8 W 1 R26l 321 0423 00 249 kft 1 8 W R373 315 0510 00 51 f t 1 4 W 5 R376 315 0510 00 51 1 4 W 5 R876 315 0101 00 100...

Страница 114: ...t o s l i g h t l y e x c e e d t h e g r a t i c u l e l i m i t s S e c t i o n M a i n t e n a n c e I n t h e l a s t l i n e o f t h e s e c o n d c o l u m n d e l e t e t h e t h r e e c o n t...

Страница 115: ...i n t h M a r k e r t o F i f t h M a r k e r I n S t e p 2 c t o p o f p a g e c h a n g e 1 0 m S t o 1 0 n S P a g e 6 1 1 C h a n g e S t e p 7 c t o r e a d c T u r n t h e t u n i n g s l u g o...

Страница 116: ...I n S t e p l O h c h a n g e 7b M H z t o 2 0 0 M H z C h a n g e S t e p 1 1 a t o r e a d a S e t u p t h e e q u i p m e n t a s d i r e c t e d i n S t e p s 1 0 b t h r o u g h l O f I n F i g 6...

Страница 117: ...o l t s f r o m a n e x t e r n a l s o u r c e t o t h e v a r a c t o r b i a s t e r m i n a l s I n S t e p s 1 2 1 3 1 c h a n g e s e e F i g 6 2 8 t o s e e F i g 6 2 9 S e c t i o n 7 E l e c...

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