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ServiceManual
Ibktronix
494A & 494AP
SpectrumAnalyzers
Volume 2
070-5561-00
Warning
Theservicing instructions for useby qualified
are
personnelonly.To avoidpersonal injury do not
performanyservicing unless arequalifiedto
you
{o do so.Refer to the SafetySummaryprior to
performingservice.
Pleasecheckfor changeinformation at the rear
of this manual.
FirstEdition:January
198?
LastRevised: December1992
@ Inc. 1987.All rightsreserved.
Copyright Tektronix,
Tektronixproducts coveredby U.S. and foreignpatents,
are issuedand pending.Informationin this publicationsupercedes
that in all previouslypublishedmaterial.Specifications
and price changeprivilegesreserved.
in
Printed theU.S.A.
Tektronix,Inc., P.O.Box 1000,Wilsonville,OR 97070-1000
trademarks Tektronix,Inc.
TEKTRONIX and TEK are resistered of
RELEASE COPYRIGHT
OF
Tektronix cannotprovide manuals measurement
for products are no
that
longer eligible longtermsupport.
for Tektronix hereby grantspermission
and license others reproduce distribute
for to and copies anyTektronix
of
measurement product manual, including usermanuals, operator's
manuals, servicemanuals, and the like,that (a) havea Tektronix Part
Number (b) arefor a measurement
and product is no longer
that
supported Tektronix. Tektronix
by A manualmaybe revised reflect
to
changes madeto the product duringits manufacturing Thus,
life.
differentversions a manual
of mayexistfor anygivenproduct. Care
should takento ensure
be thatone obtains proper
the manual version for
a specificproductserialnumber. This permission licensedoes not
and
applyto any manual otherpublication is stillavailable
or that from
Tektronix, to any manual otherpublication a videoproduction
or or for
product a colorprinterproduct.
or Tektronix does notwarrantthe
accuracy completeness the information, graphics,
or of text, schematics,
partslists,or othermaterial contained withinany measurement product
manualor otherpublication is not suppliedby Tektronix that is
that or
produced distributed accordance the permission license
or in with and
set forthabove. TEKTRONIX SHALL NOTBE LIABLE FORANY
DAMAGES (t
WHATSOEVERNCLU NG,WITHOUT M|TAT|ON,
Dl Lt ANy
CONSEQUENTIAL INCIDENTAL
OR DAMAGES, DAMAGES FOR
LOSS PROFITS,
OF BUSINESS INTERRUPTION, FOR OR
TNFRTNGEMENT OF TNTELLECTUAL PROPERTY) ARTSTNG OF OUT
THEUSEOF ANY MEASUREMENT PRODUCT MANI.'AL OTHER
OR
PUBLICATION PRODUCED D]STRIBUTED ACCORDANCE
OR IN
WITHTHEPERMISS]ON LICENSE AND SETFORTH ABOVE
Thomas Lenihan
F. ChiefIntellectual CounselTektronix, (503) 627-7266
Property lnc
da
WARRANTY
Tektronixwaffantsthat this productwill be free from defects materials workmanship a periodof one (l)
in and for
yearfrom the dateof shipment. any suchproductprovesdefectiveduringthis warrantyperiod,Tektronix, its
If at
option,eitherwill repairthe defectiveproductwithout charge partsandlabor,or will providea replacement
for in
exchange the defective
for product.
In orderto obtain serviceunderthis wananty,customermust notify Tektronixof the defectbeforethe expiration
of the warrantyperiodandmakesuitable arrangements the performance service.
for of Customer shallbe
responsible packaging shippingthe defectiveproductto the servicecenterdesignated Tektronix,with
for and by
shippingcharges prepaid.Tektronixshallpay for the returnof the productto Customer the shipment to a
if is
locationwithin the countryin which the Tektronixservicecenteris located.Customer shall be responsible
for
payingall shippingcharges, duties,taxes,and any othercharges products
for returned any otherlocations.
to
This warrantyshall not apply to any defect,
failure or damagecaused improperuseor improperor inadequate
by
maintenance care-Tektronixshall not be obligatedto furnish serviceunderthis warrantt a) to repairdamage
and
resultingfrom attempts personnel
by otherthan Tbktronixrepresentatives install,repairor service producq
to the
b) to repairdamage resultingfrom improperuseor connection incompatible
to equipment; c) to service
or a
productthat hasbeenmodifiedor integrated with otherproductswhenthe effectof suchmodification or
integrationincreases time or difficulty of servicing product.
the the
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF
ANY OTHER WARRANTIES, EXPRESSEDOR IMPLIED. TEKTRONIX AND ITS VENDORS
DISCLAIM ANY IMPLMD WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.TEKTRONIX'RESPONSIBILITY TO RNPAIR OR REPLACE DEFECTTVE
PRODUCTSIS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO TIM CUSTOMER FOR
BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTTVEOF
WIMTTMR TBKTRONIX OR TTM VENDOR HAS ADVANCE NOTICE OF TTIB POSSIBILITY OF
SUCH DAMAGES.
494A/494APService,Vol. 2
TABLEOF CONTENTS
This manual is divided into two volumes.
VOLUME1
PREFACE Section4 PERFORMANCE
SERVICING CHECK
SAFETYSUMMARY Sectlons ADJUSTMENT
Section1 PROCEDURE
GENERAL INFORMATION Sec{on 6 MAINTENANCE
Section2 SPECIFICATION Sectlon7 THEORYOF OPERATION
Section3 INSTALLATION Section8 OPTIONS
AppendirA GLOSSARY
VOLUME2
SERVICING SAFETY SUMMARY Section10 DTAGRAMS (CONT.)
Section9 REPLACEABLE ELECTRICAL PARTS 24 VIDEO
Section10 PROCESSOR
DIAGRAMS 25 VERTICAL
1 FUNCTIONAL DIGITAL STORAGE
BLOCK 26 HORIZONTAL DIGITAL
2 1st CONVERTER STORAGE
BLOCK 27 DEFLECTION AMPLIFIERS
3 2nd CONVERTERS BLOCK 28 Z.AXIS RF INTERFACE
4 3TdCONVERTER &
BLocK 29 H]GHVOLTAGE SUPPLY
5 IF BLOCK 30 CRTREADOUT
6 DISPLAY CONTROL BLOCK 3.I SWEEP
7 FREQUENCY CONTROL BLOCK 32 SPANATTENUATOR
8 COUNTER PHASELOCKBLOCK
& 33 1st Lo DRTVER
9 DIGITAL CONTROL BLOCK 34 PRESELECTOR
10 POWER DRIVER
SUPPLY BLOCK 35 CENTER FREOUENCY
11 RF DECKINTERCONNECT CONTROL
36 HARMONIC MIXER &
12 1st CONVERTER & PHASEGATE
2O72MHz
'13 PHASE 2nd CoNVERTER 37 AUXILIARY SYNTHESIZER
LOCKED 2nd LO 38 COUNTER
(16-20 MHz pHASELOCK) 39 PHASE LOCKSYNTHESIZER
14 PHASE LOCKED LO
2nd (SYNTHESIZER)
(LO & 2200MHz REF/CONV.) 40 PHASE LOCKSYNTHESIZER
15 829 MHz 2nd CONVERTER (PHASE
(LO SECTION) LOCK)
41 PROCESSOR
16 829 MHz2nd CONVERTER 42 MEMORY
0F sEcTtoN) 43 ROMBANKS GPIB
&
17 110MHz lF & 3rd GONVERTER 44 ACCESSORIEgINTERFACE
18 VARIABLE RESOLUTION 45 FRONT PANEL
MOTHER BOARDS 46 MAINPOWER
19 VR INPUT SUPPLY
& (PRTMARY SECTION)
lSt FILTER SELECT 47 MAINPOWER SUPPLY
19A 10 Hzll00 Hz BANDpASS FTLTER (SECoNDARY SECTION)
20 10 dB GA]N,20 GAIN,
dB & FANDR]VE
& BANDLEVELING 48 MOTHER BOARD (FRONT)
21 VR 2nd FTLTER SELEOT 49 MOTHER BOARD (REAR)
& POSTAMPLIFIER 50 REFERENCE LOCK
22 LOGAMPLIFIER DETECTOR
& Sectlon 11 REPLACEABLE MECHANICAL PARTS
23 V]OEO AMPLIFIER
o
49441494AP Vol. 2
Service,
LIST OF ILLUSTRATIONS
The tollowingfiguresare locatednear their associateddiagramsin Section10.
10-1 A16A1-1st LO Interface circuitboard. 10-32 A68A8-VR 2nd FitterSelectcircuitboard.
10-2 A18A1-2072 MHz 2nd Converter circuitboard. 10-33 A68A9-VR Post Amptifier circuitboard.
10-3 A22A1-16-20 MHz PhaseLock circuitboard. 10-34 A62A1-Log Amplifiercircuitboard(front).
10-4 A22A2A1-2182MH2MicrostripOsc.circuitboard. 10-35 462A1-Log Amplifier circuitboard(rear).
10-5 A22A2A2-2200MHz Reference circuitboard. 10-36 A4O-Video Processor circuitboard.
10-6 A22A2A3-2200MHz Reference Mixercircuitboard. 10-37 A61A1-VerticalDigital Storage circuitboard.
10-7 A23A1-719 MHz 2nd LO circuitboard. 10-38 A60-Horizontal DigitalStoragecircuitboard.
10-8 A23A2-25 MHz PhaseLock circuitboard. 10-39 A64A1-Deftection Amptifiers circuitboard.
10-9 A23A3-HarmonicMixer circuitboard. 10-40 A70-Z-Axis & RF Interface circuitboard.
10-10 A23A4-829 MHz Diplexer circuitboard. 10-41 A74-High Voltage circuitboard.
10-11 A23A5-829 MHz Amplifier circuitboard. '1042 466A1-CRT Readout circuitboard.
10-12 A23A6-110MHz lF Selectcircuitboard. 10-43 A72-Sweep circuitboard.
10-13 A23A7-829 MHz 2nd Converter circuitboard. 10-44 A48A1-Span Attenuator circuitboard.
10-14 A32A1-110 MHz lF Amplifier circuitboard. 10-45 A44A1-1st LO Drivercircuitboard.
'10-15 A34A1-100 MHz Osc.& 3rd Conv.circuit board, 10-46 A42A1-PreselectorDrivercircuitboard.
10-16 A34A3A1-5015a Cal Out circuitboard(Option 07). 1447 A46A1-CF Controlcircuitboard.
10-l 7 Al 9A1-l 10 MHz lF Out circuitboard(Option 42). 1048 -Auxiliary Synthesizer
A26A'l circuitboard.
10-18 A68A1-VR Motherboard#1. 10-49 A51A1-Gounter circuitboard.
10-19 A68A2-VR Motherboard #2. 10-50 A50A1-Synthesizercircuit board.
10-20 A68A3-VR Input circuitboard. 10-51 ASOA2-StrobeDrivercircuitboard(front).
10-21 A68A4-VR 1st FilterSelectcircuitboard. 10-52 A50A2-Strobe Drivercircuitboard(rear).
10-22 A69A1-1st Mixer circuitboard(front) 10-53 AsoA3-OtrsetMixercircuitboard.
10-23 A69A2-10 Hzll00 Hz Bandpass Filter 10-54 A50A4-Error Amplifiercircuitboard.
circuit board(front) 10-55 A50AS-Controlled Oscillatorcircuit board.
10-24 A69A3-2nd Mixer circuitboard 10-56 A58-Processorcircuitboard.
1A-25 A69A4-Local Oscillator circuitboard(front) 10-57 A54-Memory circuitboard.
10-26 A69A1-1st Mixer circuitboard (rear) 10-58 A56-GPIB circuitboard (front)
1A-27 A69A2-10 Hzl100 Hz Bandpass Filter 10-59 A56-GPIB circuitboard (rear).
circuitboard(rear) 10-60 A30A76-Accessorieslnterfacecircuitboard.
1A-28 A69A4-Local Oscillator circuitboard(rear) 10-61 A38-Front Panetcircuitboard.
10-29 468A5-VR 10 dB GainStepscircuit board. 10-62 A30A1-Main PowerSupply circuitboard.
10-30 A68A6-VR 20 dB GainStepscircuitboard. 10-63 A30A2-Fan Drivecircuitboard.
101 A68A7-VR Band Leveling circuitboard. 10-64 A36A1-RefereneeLock circuitboard.
494A1494APService, Vol. 2
SERVICING
SAFETYSUMMARY
FOR QUALIFIEDSERVICEPERSONNEL
ONLY
Do Not Service Alone
Do not performinternal serviceor adjustment this
SYMBOLS
of
product unless another person capable of rendering
first aid and resuscitation present.
is In This Manual
Do Not Wear Jewelry This symbol indicateswhere applicablecau_
jewelry prior to servicing. Rings, neck_ tionary or other informationis to be found,
. Remove
laces,and other metallicobjects could come inlo con_
tact withdangerousvoltages and currents. As Markedon Equipment
Use Care When Servicing With power On
Dangerousvoltagesexist at severalpoints in this
product. To avoid personal injury, do not touch
exposedconnectionsand components
q -
DANGER HighVoltage.
while power is
on.
D.isconnect power before removing protective
panels,
soldering, replacing
or components.
e Protective
ground(earth)
terminal.
Power Source
This product is intendedto operatefrom a power
A -
ATTENTION Referto manual,
source that will not apply more than 250 volts rms
between supplyconductor
the and ground. A protective
ground connectionby way of the groundingconductor
in the powercord is essential safeoperaiion.
for
o Referto manual.
Grounding product
the
X-Radiation
This product is groundedthrough the grounding
X-rayemissiongenerated withinthis instrument has conductorof the power cord. To avoidelectriCal
shocli
been sufiicientlyshielded. Do not modifyor otheffvise plug the power cord into a properlywired receptacte
alterthe high voltagecircuitryor the crt enclosure. beforeconnecting the produci input or outputtermi-
to
nals. A protectiveground connectionby way of the
grounding conductor the powercord ij essential
in
TERMS safe operation.
for
In This Manual Danger Arising From Loss of Ground
CAUTIONstatementsidentify conditionsor prac- Upon toss of the protectiveground connection, all
tics that could resultin damageto the equipment accessible conductiveparts (including
knobsand con_
or trols that may appearto be insulating)
other property. can render an
electricshock.
WARNINGstatementsidentify conditionsor prac_
ticesthat could resultin personalin1ury loss of life.
or Use the Proper power Cord
As Marked on Equipment Use only the powercord and connector
specified
for
your product.
CAUTION indicates a personal injury hazard not
immediatelyaccessible one readsthe marking,or a
as Use onlya powercordthat is in goodcondition.
hazard propertyincluding equipment
to the itself. For detailedinformationon power cords and con_
DANGER indicates personalinjuryhazardimmedi-
a nectorssee Section1.
atelyaccessible one reads the mirking.
as
o
lil
494A1494APService, Vol. 2
The 494AP Spectrum Anatyzer,
Section 9-494A/494Ap Sewace Vot.z
REPLACEABLE
ELECTRICAL
PARTS
PARTS ORDERING INFORMATION
R e p l a c e m e n tp a r l s a r e a v a i l a b l ef r o m o r t h r o u g h y o u r l o c a l Only the circuit number will appear on the diagrams and
T e k t r o n i x ,I n c . F i e t d O l l i c e o r . r e D r e s n t a t i v e . circuit board illuslral,ons. Each diagram and circuit board
illustralion is clearly marked with the assembly number.
C h a n g e s t o T e k l r o n i x i n s t r u m e n t sa r e s o m e t i m e sm a c t et o Assembly numbers are also marked on the mechanical exploded
accommodate improvect components as they becom available, views located in the Mechanical pans List. The component
and lo give you lhe benetit ol the latest circuit improvements number is obtained by adding the assembly number prefix to the
developectin our engineering departmenl. ll is therefore rmpor_ circuit number.
l a n t , w h e n o r d e r i n g p a r l s ,t o i n c l u d e t h e t o l l o w i n g i n t o . m a t i o n i n
your otdet Part number, inslrument lype or number. serial The Etectricat parts Lisr is divided and arranged by
number, and moditication number if applicable. assemblies in numerical sequence (e.g., assembly A1 with its
subassemblies and parts, precedes assembly AA with its sub-
It a parl you have orclered has been replaced wilh a new or assemblies and parts).
improved part, your local Tektronix. Inc. Field Ofticeor represen_
latavewill contact you concerning any change in part number.
Chassis-mounted parts have no assembly number pretix
and ate located al the end of the Electricat parts Lisl.
Change inlormation, it any, is tocaled at the rear ot this
manual.
LISTOF ASSEMBLIES TEKTRONTX
PART NO. (cotumntwo ot the
A list ot assemblies can be found at lhe beginning of lhe
ElectricalPartsLlst)
Electrical Parts List. The assemblies are listed in numerical order. Indicales part number lo be used when ordering replacs.
W h e n t h e c o m p l e t e c o m p o n e n tn u m b e r o f a p a r t i s k n o w n , l h i s t i s t menl part from Tektrontx.
will identify the assembly in which the part is tocated.
CROSSINDEX.MFR.
CODE NUMBERTO SERIAL/MODEL (columns
NO. threeand four
MANUFACTURER
ot the Efectricalparts List)
The Mfr. Code Number to Manulaclurerindex tor lhe
EleclricalPartsList is tocatedimmediatety Column three (3) indicates serial numbrat which lhe
the
after this page,The parl wasfirsl used.Columnfour {4) indicateslheserial
CrossIndexprovides codes.namesand actdresses manufac- numberat
of whichthe part was removed. serialnumberenteredindicates
lurers ot componenls listect the Electricalparts List No
in
parl is good tor all serialnumbers.
ABBREVIATIONS
A b b r e v i a l i o n s o n l o r m t o A m e r i c a nN a t i o n a lS t a n c t a r d 1 . t _
c y
NAME & DESCRTPTTON (cotumntive ot the
Eleclrical Parts List)
COMPONENTNUMBER (cotumnone ot the In the Parts List, an ltem Name is separatdtrorn the
ElectricalParts List) ctescription a colon (:). Because spacelimitations, ttem
by ot an
Name may sometimesappear as incomplete.For turther ltem
A numberingmethodhas beenusedto identityassemblies. Nameidentilication. U.S.Federal
the Cataloging
Handbook HGI
suDassemblies parts. Examptes this numberingmethod
and ot can be utilizedwher possible
ancttypicalexpansions illustratedby the following:
are
Eranrplca. componentnumber
/-&-\
423R1234 -- A23 R.t234 MFR.CODE(columnsix of lhe Electricat
parts
-\-rrt""
o"r".o,ynr.o", nr,n= Lisl)
Indicates code numberof the actualmanutacturer
the otthe
Rrldr Rcrlslor 1234ot A33emuy 23
parl. (Codelo nameand actdresscrossreterencecan be found
immediatety atter this page.)
Errmple b. component number
,-/^-\
42342R1234 423 A2 81234
Assembly MFR-PART NUMBER(column seyenot the
number
Etectricatparts List)
Reed: Rerislor 123rt ol Subdsembly 2 ot Assembly 23 Indicatesactualmanutacturers
part number.
9-1
Replaceable Electrical Parts
494A/494APService Vol .2
CROSSINDEX- MFR.CODENUMBERTO MANUFACTURER
itfr.
Corh lhnuFactrrer Adress City, State, Zip Cd
00213 NYTR0NICS C0'IP0NENTS INC
GROUP ORAIIGE ST DARLIIGTON
SCA$2
SUBSIDIARY OFNYTRONICS ]NC
0068I I,IINESAFFTY APPLIA}ICE CO 1421CI-ARKVIT}'' RD MD
BALTII'ilRE 21249.2),03
CATATYST RSEARCH DIV
OO8O9 CROVTN CRYSTALS 5OO BEECH ST ONT LTN
I+IITBY CAN 5S5
SUB ELECTRONIC
OF TTCHNOLGIES P0Box420
INC
01121 ALLEN-BRADLEY CO 1201 zND
s 5T L/I 53204-24T0
MILIIAI.KEE
0128I MOTOROLA INC 14520 AVIATION BLVD r.Ar,JtlDALE
CA90260-1121
RF& OPTOELECTRONIC DIV PRODIJCTS
01295 TEXAS INSTRLT'IENTS INC I35OO CENTML
N EXPY DALLAS 75265
TX
SEMICONOI,cTOR GRCIJP P0Box655012
02111 MI'IIITON STAIIDARD CONTROLS INC E
17070 GALE AVE CA
CIIYOFINDT'STRY91749
SPECTROL DIV P 0 Box1220
OZII4 MPERilELECTRONIC CORP 5083KINGS }il/Y NY12477
SAI.JGERTIES
FERROXCUBE DIV
02735 RCA C0RP
SOLID STATI OIVISION
a4222 AVX CERA|.{ICS I91HAVE SOIJIH I4YR]LE SC
BEACH 29577
DIVOFAVX CORP P O BOX 867
04713 l',l0T0RoLA
lllc 5OO5 MCDOI,/ELL
E RD PT0ENIX 85008-4229
AZ
SEMICONDIrTOR SECTOR
PRODIJCTS
05397 UNIO{ CARBIDE CORP 11901 MDISON AVi OH4410I
CLEVELAND
I'OTERIALS SYSTEI',ISDIV
05828 GENMAL INSTRI}IENI CORP 600!/ JOHN ST NYlIBO2
HICKSVILLE
GOVERNMENT DIV
SYSTEMS
07088 KELVIN ELECTRIC CO 5907NOBLT AVE NTJYS 91411
VAN CA
07?63 FAIRCHILD SEHICOI{UJCTOR CORP
077t6 TR}, INC 2B5O PLEASANT
MT AVE IA 52601
BURLI}IGTON
TRII FIXED
IRC RESISTORS/BMLINGTON
11236 CTS C0RP 406 PARR ROAD BERNT 46711-9506
IN
EERNE DIV
THICK FII.I,I
PRODIITS GROUP
11532 TELEDYNE RELAYS 125A5 DAPHNE AVI HAi.rrhmNE90250-3308
cA
TELEDYNE INB.8TRIES IM
SU8 TELEDYNE
OF IIT
t29V MICROSTMI - SCOTTSDALE
CORP 87OO TIO.IAS
E RD N 85252
SCOTTSDALE
P 0 80x 1390
1296S t',[cR0s$11 C0RP0RATION 530PLTASANT STREET r,,ATtRTSlN 02172
M
I,|ATERTO,INDIVISION
14433 ITT SE}'IICOND|rTORS DIV !,ESTPALI,I
BEACH FL
14552 MICmSB'll CORP 2830S FAIRVIEII ST SANTA CA92704-5948
Al{A
1475? TLECTRO IIE
CItsE 1710S DEL AVE
MAR sAN CA
GABRIEL 91776-3825
16179 M/A-CS,I SPECIM
$AII INC 2I CONTINENTAL ELVD MERRIi'IACK
NH03054-4303
MICRHAVE COfONENT DIV
suB0F t,yA-c0'lll{c
17540 ALPMINU.JSTRIES II,IC 20 SYLVAJ\ RD toBuRN 01801-18y *
trtA
rc/sEl4lcq{ufToR DIv P0 Box 1044
18324 SIGNETICS CORP 4I3OS MARKfl COI'RT ca
sAcRAr'[r{T0 9834-tz?z
I4ILITARY TTS DIV
PRO
18612 VISIAY II{TERIE$N&OGY I}f 63 TINCOLN I}'Y flALVERN19355-2120
PA
VISTAY RESISMR MOilTTS GRO,|P
TOOL
19396 ILLINOIS I.ORJG l}tr 1205 llccoNvtLLE R0 LYr[HzuRG 24502-4535
VA
PMnoil otv P0 Box4539
19701 P}|ILIPS C0,IP0I|ENTS DISCRETE PR(DIITSP0 Box760 I'INEML lX
I,JELTS 76067-0760
DIV RESISTIVE PROIITS FACILITY
AIRPORT R[}AD
1F8@ L'NIO{ CARBIDE CORP ONE CALIFORNIA FRANCISCo 94111
sAt{ CA
EATTERY PROUf,]S t)IV
20S32 KMERAINTERIIATISIAL INC 116A0 VALLEY
SORRENTO RO sANDIES CA32121
POBOX 81543 PLAI{T 1
NO
222N SOLITRON DEVICES INC BBOS BALBOA AVE SAN CA
DIEGO 92123
SEMICOI{UTTOR SA}I
GROUP DIEGO @ERS
24165 SPRAGUE ELEC1RIC CO 267 LOIIELL ROAD ruDsoNNH0305i
24355 AMLOG DEVICES INC RTI INDUSTRIAL PK N0Rro00 020@
r'rA
P0Box9106
9-2 REV ISA
m
Rep'laceableElectrical Parts
494V494AP Service Yol .2
o llfr.
Crrle |lanufacturer
CROSSINDEX- MFR.CODE NUMBER MANUFACTURER
Adhess
TO
Citv. State- Zio Co&
24539 HEI,,LFIT-PACKARD C0 3I/5 BCL,ERS
AVE SANTA
CLAM 95051
CA
MICROI'AVE SE}'IICONU.}CTOR DIV/AVAI,ITEK
24931 SPECIALTY CONIIECTOR COINC 2IOO IARLYIJOODDR FMNKLIN 46131
IN
P0Box547
25088 SIil4ENS CORP 186r.,l00D S
AVE NJ
ISELIN OB83O-2704
26769 MEPCO/CENTMI.AB 59OO AUSTMLIAN AVE rdtsTPAt"rir FL
BEACH 33407-?330
A NORTH A,IERICAN PIIILIPS CO
26805 O'{NI
M/A-C0I| SPECTM INC i4O4TH AVE r.,ALTMt4 02154-i507
M
MICRO.'AVE CONNECTOR DIV
suB0F M/A-C0'1 INC
2/012 |tlICRODEVICES CORP S
I32O MAIN ST l'',tANSFIELD
0H4490/-2516
SUB F4ERSOi'I
OF ELECTRIC CO P0Box3538
270t4 NATIONAL SEMICONDI.CTOR CORP 2900ss'ilc0NDtJcT0RDR SANTA
CLAM 95051-0606
CA
28480 HEYLETT-PACIORD CO 3OOO |IANOVERST PAL0
ALTo 94304-1u2
CA
CORrcMTE I-Q
29587 RA'|0
BLilKER C0RP A',|PHB,I0L iNDUSTRIAL S 54TH
1830 AVE CHICAGO60650
IL
DIV
2ttfi27 ROI'-,I
CORPOMTION P0Box19515 IRVINE 92713
CA
3178i EDAC INC 20 MILSIDE RD MNMILLS CAN lM
ONT M3A
32293 iI.ITERSIt iNC
3n97 BOURNS ]NC i200 c0lt[48iAAvE RlvtRslDE 9?507 4
cA -211
IRII,IPOTDIV
33095 CONTROL
SPECTRTT',I INC 2185 I/EIGHT
I,' ST ERIIPA16505
33096 COLORAM CRYSTAL CORP 2303 8TH
hi ST L0vELAllD 80537-5268
C0
34335 MICRO
ADVAJ'ICED DEVICES 901ThO4PSON PL SUNNYVALE
CA94086-4518
34630 K AND L/QJARTZTEK INC 3940 MONTECITO
i/ HJOENIX85019
M
50101 FREq]ENCY SOLRCES INC 16 MAPLE RD CHTLMSFORD
MA01824.3737
Sil4ICONDTITOR DIV
SUB LORAL
OF CORP
50140 K AND MICRS'AVI
L INC 408COLES CIR SALISBTJRY
MD21BOI-3214
SttsOFOWER CORP
50434 HE\ILITT-PACKARD CO 370t,J TRIMBTERD JOSE 95131
SAN CA
OPTOTLEC1RONICS D]V
50438 HE!'LETT-PACKARO CO IiOOO UDLFE RD CUPERTIN0
CA95014-0602
DATA SYSTEI'IS DIV
50558 ELECTR0NIC C0'|CEPTS ir,lc 526INU"'STRIAL t'
hlAy IATONTO,'N477
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51642 CEI{TRE EIGINEERIITG INC 2820E COLLEGE AVE STATE
COLLEGE16801-7515
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PARK
53387 I4INIIESOTA }1INII6 I'IFG CO P0Box2963 AIJSTIN 7876S-2963
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AVT PALo CA
ALTo 94304-1319
58854 GTEPRODIf,TS
CORP
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5S492 K AIO L MRTZTEK
DIV OF K AI,ID I'IICR&'AVE
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59660 TUSOTIIX
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1O8O JOINSON DRIVE
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NEY 1992
DE 9-3
Replaceable Electrical Parts
494 /494AP Service VoI.2
CROSSINDEX- MFR.CODE NUMBER MANUFACTURER
TO
Itfr.
Co& liat'ufacturer Adrcss Citv. State. ZiD Co&
75042 CO,IPONEJ'ITS
IRCITECTRONIC ST
4OI N BROAO PIIILADELPHIAPAI9108-IOOI
PHILADELPTIIA DIV
TRUFIXED RESISTORS
75378 CTSKNIGfrfTS INC 4OO AVE
REIM}IN sAl{of,lcH 60548-1846
IL
75915 LITTELFUSE II{C E T*/Y
BOO NORTIfrEST DES PTAINES 60016-3049
IL
SW TMCM Irc
76493 EILL IIIilJSTRIES II{C I9O/O REYESAVE c04PT0r,r 90224-825
cA
.R' },IILLER
DIV P0 80x 5825
800{B TEKIROI{IX INC 14150 KARL
SI/ BMUN
M 0R970/7-0001
BEAVERT0N
P0 Box500
810/3 INC
GMYHILL AVE
56i HILTGROVE r-AGMJ'IGE 60525-5914
IL
P0Box10373
84411 A},IERICAN CORP
SHIZUKI 301i,iEST ST
O NE
ffiALLALA 69153-1844
OGALLALA OPERATIONS
87473 INSIJTECTRO 3176 AVE
AIRI.'AY MESA 92626-4608
cosTA CA
INDUSTRIIS
A OIV OFQUINTEC
915ffi AI,6ATINC 33 PERRYAVE ATTLEBORO O3-?4T7
I4AO?7
P 0 Box779
91637 DALE INC
ELECTRONICS 2064lzTHAVE coufiEJsilE 68501-3632
P0 Box609
95275 VITRAHONINC Box544 CT06601-0544
BRIDGEPORT
98821 NORTHHILLSELTCTRONICSlNC AUNDR PL 6LENCoVE 11s42-3704
NY
s0545 NIPPONELECTRIC LTD
CO TOKYOJAPA},I
TK0146 BUEHLER
PRODIITSII,IC PO A HI$E/AY
BOX 70 EAST NC
KiNSTON 2850I
TK0510 PANASONIC
C(}PANY ONT IilAY
PAMSONIC tTJO7@4
SECAUCUS
CORP
ELECTRIC
DIV OFMTSUSHIIA
TK0858 5TAIJFFERSUPPLY (DTST)
CO
TK0900 UNITED C|E'|IC0N
TK0935 MROIIARDT SI{ITCHESII$C
TK0961 NECELECTRONICS Ilf
USA
TKl134 TI,SOIIIX
INC 2155N FORBES
BLVD rrcs0NM 85705
TKl345 Zf'tAN ASSOCIATES
&
TKl375 ESM
TKt409 AIERICAI,I
PRECIS1ON INC
IilITJSTRIES
TKI421 COILTRO{,I P0Box904 970/5
BEAVERTON
OR
TKt424 MRCON CORP
AI',IERICA
TKl468 LINEAR TECHNOLGY CORP ELVD
1$O rcCARTHY MILPITAS 95037
CA
rK1727 PHILIPS NEDERLAND BV POSTBUS9OO5O 5600PtsEINDHOVENNTTHERLAND5
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AFDELOi.ICO
TK2469 UNITREK
CORPMAIIO}I 3OOO & }'AY
LE}'IS CLARK ',,A
VANCOWER 98601
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IEC
Replaceable Electrical Parts
494M494APService Vol .2
Tektrurix Serial/Asserbly lh. ltfr.
Cotwrent lb. Part tfo. Effective Dscont llare & Description Cod lilfr. part lb.
ATIO 119-100/-078010100 8020683 ATTENUAT0R,VAR:0-60D8
IN t0DBSTtpS 50667 ORDER DESCR
8Y
ATlO 119-1007-098020684 ATTENUAT0R:0-6008
IN iODBSTEPS 80009 119-1007-09
0t5-1053-01 ATTENUATOR,
FXD:3DBPAD 16179 2082-4287-03
NLz 015-1053-01 ATTENUATOR,
FXD:3DBPAD 16179 2W?-4287-03
At0 I l9-1061-00
B0l0l00 B0i0438 TIMITER
ASSY:2GM 8000"qll9-1061-00
A10 119-1061-018010439 LIMITER
ASSY:26flZ B0009 n9-1061-0I
All 119-1iM-00 BiASRFIURN: 800c'9 119-1164-00
Atz I 19-1017-01 FIRST CONV ASSY: B00sr 119-10i7-01
A12A1 I 55-0189-02 I|ICR0CKI, :DUAL
LINEAR DIODE
Wl-IlJSIl{6 80009 t55-0189-02
Al3 119-1019-00 PO}JER ASSY:
DIV 8000s li9-1019-00
A14 119-1645-01 OIPLTXERASSY: 80m9 119-164s-01
A16 LLg-0752-02 OSCILLATOR,RF:2.0 GllZII/CAN
T0 6.1 80009 1t9-0752-02
AI6Al 670-5540-00 CIRCUIT ASSY:IST O INTERFACE
BD L 80009 6i0-5540-00
AI7 015-1053-01B010zz0 ATTENUATOR, FXD;3DB
PAD i6179 ?08?-4287-A3
Al8 8010100 B020696
I 19-1096-02 SEC CONV ASSY: 80009 119-1096-02
A18 119-10S6-038020697 SEC C0i'lVASSY:494AP 80009 ll9-1m6-03
AlBAI CKTB0ARD ASSY:ZND
CONVERTER
(PART Al8)
0F
A19 119-1845-02
8010100 8010113 IIO'IHZIF ASSY: 80@9 119-145-02
(oPTIoN oNLY)
42
A19 119-1845-03
8010114 110'lHZ ASSY:
IF 80009 119-1845-03
(0PTIoN oNLY)
42
A1941 670-8650-02
8010100 B0t0t
i3 CIRCUIT ASSY:rl0tlfZ OUT
BD IF d0009 670-8650-0?
i0PTloN42 SrLY)
A19A1 670-8650-03
B010li4 CIRCUIT ASSY:llOMl'Z OUT
BD IF 80009 670-8650-03
(0PTIoN O{LY)
42
Ata 650-0/36-01
80i0100 Bot023z PHLOCK LO:
2ND 80009 650-0736-01
A?2 650-0736-02
8010233 PIIASE
LOCK ASSY: 80000 650-0736-02
A?241 670-7914-00 CIRCUIT ASSY:16-2s&Z
BD P|IASEL0CK 80009 670-t914-00
MzM (PARI0F A22)
A?ZAUL 670-/395-0i CIRCUIT ASSY:2l82l*lZ
BD l'll0R0STRIP
OSC 80009 670-1395-01
A??j.ZM 670-7076-01 0IRCUIT ASSY:2ZO0fltlZ
80 REF 80009 670-7076-01
A?24?}A 670-/079-00 CIRCUIT ASSY:2200t'lflZ
BD REFERtl{CtMIXER 80009 670-i079-00
M3 ii9-1131-0s SECCONN ASSY:8291{HZ 80009 119-ll3i-05
A23Ai 670-5936-00 CIRCUIT ASSY:7l9MM
BD SEC0ND t0 80009 670-1c36-00
42342 670-5S3/-03 CIRCUIT ASSY:251{M
BD PMSELOCK 8000.9 670-5937-03
A23A3 670-6016-00 CIRCUIT ASSY:829MfZ
B0 MRltlONIC