HP 8662A Service manual

OPERATINGANDSERVICEMANUAL
MODIFICATION
MODEL8662A
OPTIONH08
SYNTHESIZEDSIGNALGENERATOR
HowtoUseThisInsert
ThisManualModificationInsertshouldbeusedinconjunctionwiththeHP8662AOperatingand
ServiceManual,VolumeI (HPPartNumber08662-90061)andVolumeII(HPPartNumber
08662-90062),bothprintedFebruary1982.MakethechangesdescribedinthisInserttothe
indicatedSectionsoftheOperatingandServiceManuals.
ApplicableSerialNumbers
ThisManualModificationInsertappliestoinstrumentswithserialnumberprefixesgreaterthanor
equalto2413A.
UpdatestothisManualInsert
Periodically,changesaremadetotheManualInserttocorrecterrorsintheoriginalprintingandto
includeOptionimprovements.Correctionsareindicatedbya markattheright-handedgeofthe
modifiedtext.Themarkusediskeyedtothedatethecorrectionsareadded(foundonthiscover
belowtheissuedate).
ManualModificationInsertIssuedJune1984
HPPartNumber08662-92038
Copyright1984- HEWLETT-PACKARDCOMPANY- SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599U.S.A.

8662AOptionH08
08662-92038
Page 1 of11
SECTIONI.GENERALINFORMATION
OptionH08tothe8662ASynthesizedSignalGeneratorprovidesaninternal60MHzRFSignal
fromtheLODriversectionoftheinstrumentoutputa rear-panelconnector. Thisoptioncannotbe
orderedwithOption001orOptionC02becausetherear-panelMODINPUTconnectorlocationis
utilizedforthe60MHzOUTPUT.
Onpage1-9,inTable1-2,SupplementalCharacteristics,addthefollowingunder
FREQUENCY:
60MHzOUTPUT(highimpedancesource):
60MHzsinewavesignalavailablefroma rear-panelconnectorata nominallevelof
>0dBminto50ohms.Donotapplyreversedc,acorRFpowertothisinput.
SECTIONIII.OPERATION
Onpage 3-1, addthefollowingunderparagraph3-2,OperatingCharacteristics:
TheHPModel8662AOptionH08maybeoperatedasa standardinstrumentwhen
OptionH08isnotinuse.Nosignificantdegradationofstandardspecificationswill
resultfromuseinthisconfiguration.
Onpage3-17,replacepartofFigure3-7,RearPanelFeatures,withthepartialFigure3-7A,
RearPanelFeatures,onpage5 ofthisInsert.
SECTIONIV.PERFORMANCETESTS
OptionH08tothe8662Adoesnotaffectanyperformancetests.
SECTIONV.ADJUSTMENTS
Certainadjustments,suchas5-8,the40MHzCRYSTALFILTERADJUSTMENT,5-9,the
160MHzand640eMHzBAND-PASSFILTERADJUSTMENT,land5-10,the480 MHzBAND
PASSFILTERADJUSTMENT,directlyaffecttheRFlevelofthe60MHzOUTPUTsignal.
Therefore,usecautionwhenmakinganyadjustmentsonOptionH08,andverifythe60MHzRF
levelaftermakinganysuchadjustments.
Copyright1984- HEWLETT-PACKARDCOMPANY- SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599U.S.A.

8662AOptionH08
08662-92038
Page2 of11
SECTIONVI.REPLACEABLEPARTS
InTable6-3,ReplaceableParts,addordeletethefollowingpartsasnoted:
Add
or
Del
Page
No.
Refer.Desig. HPPart
Number Qty Description
D
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
D
A
D
A
D
A
6-64
6-64
6-65
6-65
6-66
6-66
6-66
6-93
6-93
6-93
6-93
6-93
6-93
6-93
6-93
6-93
6-93
6-93
6-93
6-93
6-93
6-93
6-101
6-101
6-101
6-101
6-101
6-101
A6A2
A6A2
A6A2J3
08662-60114
08662-62029
A6A2MP10
A6A2W1
All
A11MP1
A11MP2
A11MP3
A11MP4
A11A1
A11A1C1
A11A1C2
A11A1C3
A11A1C4
A11A1J1
A11A1J2
A11A1L1
A11A1L2
A11A1R1
MP109
MP109
MP112
MP112
MP127
MP127
0361-1076
08662-22030
2190-0124
2950-0078
08662-62030
11710-80001
11710-80002
2190-0124
2950-0078
08662-62031
0610-3879
0160-4527
0160-4389
0160-4527
1250-1220
1250-1220
9100-2250
9100-2250
0698-7228
08662-00028
08662-02028
08662-00216
08862-02030
0590-1011
2950-0035
1
1
1
1
1
1
1
1
1
1
2
2
1
1
2
1
2
4
LODriveAssembly
LODriveAssembly,OptionH08
NSR,P/OA6A2W1
Eyelet,RollFlange,0.047"OD, 0.093"L
Cable,Semi-rigid(IncludesA6A2J3)
Lockwasher,#10,0.195"ID,(forA6A2J3)
Hexnut,10-32thd, 0.067"thick, (forA6A2J3)
60MHzLowPassFilterAssembly
Cover,Bottom
Can,LPF
Lockwasher,#10, 0.195"ID
Hexnut,10-32thd, 0.067"thick
60MHzLowPassFilterBrd.Assy.
Cap-Fxd 0.01 uF+/-20%lOOVdcCer
Cap-Fxd56pF +1-5% 200VdcCer
Cap-FxdlOOpF +1-5% 200VdcCer
Cap-Fxd56pF +1-5% 200VdcCer
RF-conn,SMCmale,P.C.,50ohm
RF-conn,SMCmale,P.C.,50ohm
InductorRF-CH-MLD180nH10%
InductorRF-CH-MLD180nH10%
Res-Fxd,464ohm,1%, 0.05W
Deflector,Air
Deflector,Air,OptionH08
RearSupportPanel,BNC
RearSupportPanel, BNC,OptH08
KurlNut,15/32-32thd, 0.12"thk
Hexnut,Dbl-Chm,15/32-32thd
Copyright1984- HEWLETT-PACKARDCOMPANY- SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599U.S.A.

8662AOptionH08
08662-92038
Page3 of11
Table6-3.ReplaceableParts(Cont'd):
Add
or
Del
D
A
A
A
A
Page
No.
6-101
6-101
6-103
6-103
6-103
Refer.
Desig.
MP128
MP128
W102
W103
W103J1
HPPart
Number
2190-0068
2190-0102
08662-62027
08662-62028
1250-0870
Qty
2
4
1
1
1
Description
Washer-Lk,IntlT 1/2",0.505"ID
Lockwasher,IntlT 15/32",0.472"ID
CableAssy.(957),flex., 50ohm
CableAssy.(956),flex., 50ohm
RF-conn,BNCfern,50ohm
SECTIONVIII.SERVICE
Onpage8-203,intable8-202,FailuresAssociatedWithExternalconnectors,incorporatethe
following: Connector
60MHzOUTPUT
TroubleshootAssembly(ServiceSheet)
A6A2(21)
All(21A)
Onpage 8-205 (ServiceSheetA),inFigure8-201,OverallBlockDiagram,replacesectionC
withthefigureonpage6 ofthisInsert.
Onpage8-215(ServiceSheetC),inFigure8-206,ReferenceSectionBlockDiagram,
replacepartofthediagramshowingA6A3andA6A2withthefigureonpage7 ofthisInsert.
Onpage 8-408 (ServiceSheet21),addthefollowingafterthelastparagraph:
DescriptionofOptionH08Modification
TheA6A2LODriverAssemblyhasbeenmodifiedbytheinstallationofa semi-rigidcable
connectedbetweenpin2 ofUlA andanaddedsubminiaturecoaxialconnector(partofthe
semi-rigidcable)ontheshieldedcoverfortheassembly.ThisSMCconnectorislabeled"J3
OUTPUT,60MHz".Fromthisconnectora flexible coaxialcable(W102)routesthe60
MHzsignaltotheAl 1 60MHzLowPassFilterAssemblymountedontheairdeflectorat
therearoftheinstrument.
Copyright1984- HEWLETT-PACKARDCOMPANY- SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599U.S.A.

8662AOptionH08
08662-92038
Page4 of11
Fromthe60MHzLowPassFilterAssemblya flexiblecoaxialcable(WO13)routesthe60
MHzsignaltoa BNCconnectormountedontherearpanel.Also, a jumperwirehasbeen
installedbetweenA6A2U2pin10andA6A2U2 pin15(ground)toenabledividerA6A2U1
atalltimes.
Alsoonpage 8-408 (ServiceSheet21),addFigure8-410A,PictorialViewofModified
A6A2Assembly,asshownonpage8 ofthisInsert.
Onpage 8-409 (ServiceSheet21),inFigure8-411,A6A2ReferenceSectionLODrive
BlockDiagrams,replacethediagramatthebottomofthepagewiththediagramonpage9 ofthis
Insert.
Alsoonpage8-409,inFigure8-412,A6A2ReferenceSectionLODriveSchematic,replace
partofFigure8-412withthepartialschematiconpage10ofthisInsert.
Afterpage8-409,addpage8-409A,(ServiceSheet 21A) containingFigure8-412A,theAll
60MHzLowPassFilterSchematic,shownonpage11ofthisInsert.
Copyright1984- HEWLETT-PACKARDCOMPANY- SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599U.S.A.

8662AOptionH08
08662-92038
Page5 of11
640KHzOUTPUT.AKCfnultconnector
tnp«dmc«IsapproximatelySOonm.Output
lavellafcuttrthan0 dBoInto50oh»a.
2-AXISBLAMCIMC/MARKER.BHCfeaalaconnector
Load1«pedant*shouldb*«eleatt1 koha.
Provider• 250u».TTL-HlghpulaeattS«
□c«liuiln|ofeachfrequencychangefarblanking
a*veptdisplay(to elininjtedisplayofsvitch-
logcrjtiKi«ntc>.Goestom.-lovduring(•-
nalndaroffrequencystep.Coax LO A nonlnal
-5V(Intarnally»dJuita»Ubetween-2and-ftV)
forZ-Axl«Intensityaariiar.
. BLECTMMCFRirjUESCYCONTROL.SSQ faoal^)
earns*etor.Provide!inputfoea voltaeeI
froa-»10Vdcto-Ml Vdc«htchproduce*a /"
Blnlaumof1 Mivariationinthu|0MHz(
outputoftheinternalretetenca.J
FEULIFT.BNCfenaleconnector.ControlLed
fcy SingleSn«Bpnode.rn,-Hi|hfjrpun-up;
TTt-'Low(orpin-down.
AUXFKINPUT.BNCfaaalaconnector.Input
InpcdiTKeliapproximately5 kohasDCcoupl
Foraorcdetaili,see JUR* 3-fiA.
FIGURE3-7A.RearPanelFeatures
Copyright1984- HEWLETT-PACKARDCOMPANY- SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599U.S.A.

8662AOption H08
08662-92038
Page 6 of11
uE5iIII™L!j O--
j EXT~INPUT I v_
INTERNAL
10 MHZ
REFERENCE
OSCILLATOR
0
m
FREQUENCY
DOUBLERS,
DIVIDERS,
AMDMIXERS
_y'"OUTPUT"1
"N [_10MHZ__]
A6X3J4
AfolOJ?
A6A10J4
A6A1J3
A8A5J2
A8A5J3
A8A5J4
AUA1J2
A2FL1J2
REFERENCESECTION
C2p>
OvenVoltage
-- • fromPowerSupply
<ir>-
-C5T5>-
<1>
<2>
<Z>
-C93Z)-
W8
"©-
W31
W32
-$-
W9
"3~
W40
-9-
W37
-s-
W38
W103
vis
j'320-640MHz,Af-20MHz
~Vt0
Reference Sum Loop
-ri20MHz toFM Loop
S
20MHz (CH)
CO FMSum Loop
10 or 20MHz
CoReference Sum Loop
-{ 10MHz toN Loop
S
lOMKz
toModulationSection
10MHz
toFractional-NLoop
—( ri9lSiil2SlEk?j
./520MHz
\to OutputSection
PART OF SERVICESHEET A.
PART OF FIGURE 8-201,
OverallBlockDiagram.
Copyright1984 - HEWLETT-PACKARDCOMPANY - SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599U.S.A.

8662AOptionH08
08662-92038
Page7 of11
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Copyright1984- HEWLETT-PACKARDCOMPANY- SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599 U.S.A.

8662AOptionH08
08662-92038
Page8 of11
A6A2ASSEMBLY
t A J A Jl
ol2J
JUMPERWIRESON
CIRUITSIDE.
OFBOARD
FIGURE8-410A.PictorialView of Modified
A6A2Assembly.
Copyright1984- HEWLETT-PACKARDCOMPANY- SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599U.S.A.

8662AOptionH08
08662-92038
Page9 of11
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Copyright1984- HEWLETT-PACKARDCOMPANY- SpokaneDivision
24001E.MissionAve,LibertyLake,WA99019-9599U.S.A.