Tektronix 494AP A a o, Preparation, 7lu, Adluctment Procedure- 4g4A/4g4ApServtceVot

Adluctment Procedure- 4g4A/4g4ApServtceVot. 1

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Equlpmentor Test Flxture lsolationTransformer

Att€nuator(3 dB miniature)

Autotransformer

Multimeter

Dc Block

Adapt€r (Sealectromaleto male)

Adapter (bnc female to Sealectro male)

Three ExtensionCables (Sealectro femaleto Seal€ctromale)

Adapter(bncto Sealectro)

Adapter(bncfemaleto sma male) Cable(20"),Tip Ptugsto bnc CoaxialCable(8)

50 O Terminator

Screwdriver,Tuning

AlignmentTool

Screwdriver,Flat,6" with 1/8, Tip

Screwdriver,PhillipsNo. 1

Allen Wrenches (3), 3lgl, 5/il"

7lu

Table 5-l

EOUIPMENTREOUIRED

Recommendatlonand Use

1:1turns ratioANDAT LEAST500VA StancorGS21000

Frequency,to 5 GHz;connectors5 mm WeinchelModel 4M, TektronixPart No. 015-1053-00

Capableof varyingline vottagefrom 90 GeneralRadioVariacTypeWl0MT3 Vac to 130Vac

100pV to 350VdcTEKTRONIXDM 5O1Aor DM 5O2A

TektronixPart No. 015-022140

TektronixPart 10i!-0098-00

TektronixPart No. 103-0180-00

TektronixPart No. 17$2902-00

TektronixPart No. 175-241240

TektronixPart No. 015-1018-00

TektronixPart No. 175-1178-00

TektronixPart No. 012-020&00

TektronixPart No. 011-0049-01

TektronixPart No. 003-0675-00

TektronixPart No. 003-0968-00

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ServiceKit (ExtenderBoardsla TektronixPart No. 672-0865-01

ADJUSTMENTPROCEDURE

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PREPARATION

Removethe cabinetas follows:

1.Set the instrumenton its faceor front panel.

2.Loosenthe lour screwsthroughthe back rubber

feet.

3.Pullthe coverup and off.

4.Placethe instrumenton the bench and reconnect the power cord.

Some circuit boards or assemblies must be removed and placed on extendersto gain accessto some test points or adjustments.When this is done, turn the poweroff beforeremovingthe assembly.

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e This kit is pari of the service Kit 006-3286-01.listed in the Maintenance section,

5-2

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