Tableof ContentsModel34904LISTOFILLUSTBATIONS
Figure

 

Page

Figure

Page

2

-1.

Line VoltageSelection

 

. . .2-l4-23. WaveformsIllustrating

 

2 - 2 .

P o w e r C o r d C o n f i g u r a t i.o. n. .s

 

. . . . . . . 2 - l

 

 

A c q u i r e / H o l d M o d e .

. . . . . . 4 - 2 2

2 - 3 .

M o d e l 3 4 9 0 A D i m e n s i o n s

 

. . . . . . 2 - 2

4-24. SimplifiedDiagramand

 

24.

Installationof IsolatedBCD Output

 

 

 

 

O p e r a t i o n oSf/ H C i r c u iAt . . . .

. . . . 4 - 2 3

2

- 5 .

andRemoteOptions

. . .. . .. .2-3

4-25. SimplifiedDiagramof S/H CircuitB

. . . . .. .. .4-24

D a t aO u t p u t C o n n e c t i o nOsp, t i o n0 2 1 . . . . . . . . 2 4

4-26. Aebctric AbsorptionCompensation. . . . . . - . . 4-25

2

-

6.

RemoteInput Connections,Option 022 ... . . . . 2-54-27. Sample/HoleLogicBlock Diagram .. . .... . . . 4-25

2

- 7 .

R e a r l n p u t C o n n e c t o r a n d C a b l e

 

. . . . . . . 2 - 6

4-28. Block Diagramof S/H Timing

 

2

-8.

InterfaceBusCables

 

. . . .2-6

 

 

a n d T r i g g e r C i r c u i t s

. . . . . . . 4 - 2 6

2

-

9. GeneralPurposeInterfaceBusConnections.. . . .2-J4-29. Sample/HoldTriggerTiming

. . .4-26

2

-10. Tigger Connections,GPIB Option 030 . . .. . . . .2-84-30. Sample/HoldMeasurementSequence.. .. -...+28

2

-l I . TriggerConnectionsS/H Option 045 . . . - . . . . . . 2-84-31. Sample/HoldSimplifiedDiagramand

3

-1.

Front and RearPanel

 

. . . . 3-0

 

 

M e a s u r e m eSnet q u e n c e

. . . . + 2 9

3

-2.

Connectingthe Guard

 

. . .3-2

5

-1.

AC Voltmeter High Frequency

 

3 - 3 . O h m m e t e r l n p u t C o n n e c t i o.n s

. . . . . . . . 3 - 5

 

 

A c c u r a c y T e s t . .

. . . . . 5 - 2

34.

ExternalTriggerSequence(Option020) ... . .. . 3-5

5

- 2 . D C C o m m o n - M o dRee j e c t i o n T e s t

. . . . . 5 - 3

3

-5.

Option021 Printout

 

. . . .3-6

5

-3.

AC Common-ModeRejectionTest

. . . . .54

3

-6.

RemoteProgramSequence(Option 022)

. . . . . .3-7

5 4 .

A C N o r m a l - M o dRee j e c t i o n T e s. .t

. . . . . 5 - 5

3

-7.

Positionof JumperWireson Outguard

 

 

5

-5.

DCVoltmeterlnputResistanceTest .. . . . . .. . . 5-5

 

 

 

Mother BoardAssemblvA31

 

3-8

5

- 6 .

A C V o l t m e t eIrn p u tI m p e d a n cTee s t. . . . . . . . . . 5 - 6

3

-8.

Timing Diagram,3490A Addressedto Listen . . 3-l I

5

-7.

Sample/HoldResponseTest .

- . .5-7

3

-9.

Timing Diagram,3490A Addressedto Talk . . . .3-12

5

-8.

ExternalReferenceInput

 

3

-10. ExampleofMarked CardProgramming. . . . . .. 3-15

5

-9.

R e s i s t a n c e T e s t . .

. . . . 5 - 9

3

-1l. Typical Responseto a Step

 

 

Locationof Adjustments,

. . . . 5 - 1 4

 

 

 

I n p u t V o l t a g e . . . .

 

. . 3 - 1 8

 

 

S t a n d a r d 3 4 9 0 A

3

- 1 2 .D i $ t i z i n g a R a m p

 

. . . . . 3 - 1 9

5

-10. Locationof Sample/HoldAdjustments.......5-17

3

-13. UsingDelayed-SweepOscilloscopein

 

 

5

- l l .

L o c a t i o no f R a t i oA d j u s t m e n t s

. . . . . . . 5 - 1 8

 

 

 

RampLinearityMeasurements. .

 

...3-20

6-1. ChassisParts.

..6-30

3

-14. Filter Output Measurement

 

. . . .3-2OG 2 .B i n d i n g P o sAts s e m b l y. . . .

. . . 6 - 3 1

3

-l 5. Measurementof a StepInput

 

. . . 3-21

6 - 3 .

S w i t c h A s s e m b l y. . . . . . G 3 1

3

- 1 6 .R a t i o l n p u t C o n n e c t i o n s .

 

. . . . . 3 - 2 1

7-1.

SwitchingInputsto A2U2 .

. .. . .7-3

4-1. Dual-SlopeIntegration

 

...4-1

7 - 2 . S w i t c h i n g O u t p u t s o f A l U 4 O l

. . . . . . . . 1 - 3

4 - 2 . B a s i c D i a g r a m a n d O p e r a t i o n . . . . .

. . . . . 1 " 2. : 7 - 3 . S a m p l e / H o l d A s s e m b l y

. . . . . . . . 7 - 7

4 - 3 . S i m p l i f i e d D i a g r a m , D C A m p l i f i e r

 

. . . . . . 4 - 3

1 4 . d e n e r a l T r o u b l e s h o o t i n g T r e e

. . . . 7 - l l 1 7 - 1 2

44.

MeasurementSequence

.. . ... - .44

iL'l-5.DC Ana1osTroubleshootinsTree.]￿-1317-14

4-5.

SimplifiedDiagram,IntegratorCircuits . . . . - . . . 4-6

j 4.

AC ConveiterTroubleshoolingTree. . . . . i,-1511-16

4

-6.

SimplifiedDiagram,AC Converter. . . . . . . . . . . .4-7

7-7.

OhmsConverterTroubleshootingTree . . .7-17 17-18

4 - 1 . S i m p l i f i e d D i a g r a m , O h m s C o n v e r t e r . . . . . . . . . . 4 - 8 7 - 9 . D i s p l a y T r o u b l e s h o o t i n g T r e e

. . . . . - 1 9 1 7 - 2 0

4

-8. Block Diagram,Clock and Counters

 

. . . .4-9

j-

9.

Loeic TestTroubleshootingTree

. .7-2117-22

4 - 9 . T y p i c a l S t a t e M a c h i n e B l o c k D i a g r a m . . . 4 - g

7 - t O . I _ o f i b C l o c k T r o u b l e s h o o t i " n g T r e e . . . . . . . l - 2 3 1 7 - 2 4

4

-10. Block Diagram,Main Logic

 

 

7

-l l. DataOutput TroubleshootingTree

 

 

 

 

A S M F l o w C h a r t .

 

. . . 4 - 1 0

 

 

o p t i o n } 2 l . .

. . 1 - 2 5 1 7 - 2 6

4

-l l. Block Diagram,Main LogicCircuits

 

. . . .4-11

7

-12. RemoteTroubleshootingTree,

 

4

-12. Block Diagram,QualifierMultiplexer

 

. .4-12

 

 

option 022 . .

. .i-2717-28

4

-13. SimplifiedDiagram,Reference

 

 

7

-13. GPIB I/O TroubleshootingTree,

 

 

 

 

and RatioCircuits

 

. . .4-13

 

 

Option030 . .

. .7-2917-30

4

-14. SimplifiedDiagram,External

 

 

7

-14. Sample/HoldGeneralTroubleshooting

 

 

 

ReferenceCircuits

 

. . 4-14

 

 

Tree .

. .1-3117-32

4

-15. Input BiasCompensation.

 

. . . . .4-15

7

-15. Sample/HoldLogicTroubleshooting
4 - 1 6 .R e f e r e n c e P o l a r i t y L o g i c .

 

. . . . . 4 - 1 5

 

 

T r e e. .

. 1 - 3 3 1 7 - 3 4

4 - 1 7 .P o w e r S u p p l y B l o c k D i a g r.a. m.

 

. . . . . 4 - 1 6

7 - 1 6 .R a t i o T r o u b l e s h o o t i n g T r e e

. . . . 7 - 3 5

4 1 8 . D a t a O u t p u t T i m i n g D i a g r a m ( O p t i o n 0 2.l.). 4 - 1 8

7

- 1 7 .L o c a t i o n o Af s s e m b l i e.s. .

. . . . 7 - 3 6

4

-19. RemoteControlTimingDiagram

 

 

7

-18. 3490A BlockDiagram

. .7-37

 

 

 

( O p t i o n

 

. . . . . 4 - 1 9

7

- 1 9 .R e f e r e n cDee s i g r a t i o n. .s

. . . . . 7 - 3 8

 

 

 

0 2 2 ) .

 

4

-20. T1'picalBusSystem

 

. . . .4-20

7

-20. SchematicDiagram,DC Amplifier

.7-391740

4

-31. SampleiHoldCircuirPosition

 

. .4-22

 

 

andSwitchingCircuits,Al, A2
-1-ll. \\'aveforms

 

 

7

-21. SchematicDiagrant,Integratorand

 

 

 

 

Illustrating

 

 

 

 

 

 

T r a c k ' H o l d \ { o d e .

 

. . + 2 2

 

 

T r , r o D e t e c t C i r c u i t s.,.A. l

. . . 7 4 1 1 7 - 4 2

'.;