Tektronix 2410 Service Manual

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Model 2410

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1100 V SourceMeter

Service Manual

2410-902-01C / April 2017

Instrument

*P2410-902-01C*

2410-902-01C

Model 2410 1100V SourceMeter

Service Manual

Cleveland, Ohio, U.S.A.

Third Printing, April 2017 Document

Number: 2410-902-01 Rev. C

ents, Inc.

Manual Print History

The print history shown below lists the printing dates of all Revisions and Addenda created for this manual. The Revision Level letter increases alphabetically as the manual undergoes subsequent updates. Addenda, which are released between Revisions, contain important change information that the user should incorporate immediately into the manual. Addenda are numbered seq

uentially. When a new Revision is created, all Addenda associated with the previous Revision of the manual are incorporated into the new Revision of the manual. Each new Revision i

ncludes a revised copy of this print history page.

Revision A (Document Number 2410-902-01)..........................................................February 1997

Addendum A (Document Number 2410-902-02) ............................................................ April 1997

Revision B (Document Number 2410-902-01) ..................................................................July 1998

Revision C(Document Number 2410-902-01) ................................................................April 2017

All Keithley product names are trademarks or registered trademarks of Keithley Instruments, Inc. Other brand names are trademarks or registered trademarks of their respective holders.

Safety Precautions

The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with non-hazardous voltages, there are situations where hazardous conditions may be present.

This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer to the manual for complete product specifications.

If the product is used in a manner not specified, the protection provided by the product may be impaired.

The types of product users are:

Responsible body ment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.

Operators us instrument. They must be protected from electric shock and contact with hazardous live circuits.

Maintenance personnel voltage or replacing consumable materials. Maintenance procedures are described in the manual. The procedures explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.

Service personnel are trained to work on live circuits, and perform safe installations and repairs of products. Only properly trained service personnel may perform installation and service procedures.

Keithley products are designed for use with electrical signals that are rated Measurement Category I and Measurement Category II,

as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient over-voltages. Measurement Category II connections require protection for high transient over-voltages often associated with local AC mains connections. Assume all measurement, control, and data I/O connections are for connection to

ategory I sources unless otherwise marked or described in the Manual.

Exercise extreme caution when a shock hazard is present. Lethal v The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30V RMS,

42.4V peak, or 60VDC are present. A good safety practice is to expect that hazardous voltage is present in any unknown

circuit before measuring.

Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators

revented access and/or insulated from every connection point. In some cases, connections must be exposed to potential

are p human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is capable of operating at or above 1000 volts, no conductive part of the circuit may be exposed.

Do not connect switching cards directly to unlimited power circuits. Th es. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card.

Before operating an instrument, make sure the line cord is connected to a properly grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.

When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input power disconnect device must be provided, in close proximity to the equipment and within easy reach of the operator.

For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under

est. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting ca-

is the individual or group responsible for the use and maintenance of equipment, for ensuring that the equip-

e the product for its intended function. They must be trained in electrical safety procedures and proper use of the

perform routine procedures on the product to keep it operating properly, for example, setting the line

oltage may be present on cable connector jacks or test fixtures.

ey are intended to be used with impedance limited sourc-

5/03

bles or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.

Do not touch any object that could provide a current path to the ways make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measur

The instrument and accessories must be used in accordance with its specifications and operating instructions or the safety of the equipment may be impaired.

Do not exceed the maximum signal levels of the instruments and accessories, as defined in the specifications and operating information, and as shown on the instrument or test fixture panels, or switching card.

When fuses are used in a product, replace with same type and rating for continued protection against fire hazard.

Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth ground connections.

If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the us of a lid interlock.

If a screw is present, connect it to safety earth ground using the wire recommended in the user documentation.

common side of the circuit under test or power line (earth) ground. Al-

ed.

The symbol on an instrument indicates that the user should r

The symbol on an instrument shows that it can source or measure 1000 volts or more, including the combined effect of normal and common mode voltages. Use standard safety precautions to avoid personal contact with these voltages.

The symbol indicates a connection terminal to the equipment frame.

The WAR information very carefully before performing the indicated procedure.

The CAUTION heading in a manual explains hazards that could damage the instrument. Such damage may invalidate the warranty.

Instrumentation and accessories shall not be connected to humans.

Before performing any maintenance, disconnect the line cord and all test cables.

To maintain protection from electric shock and fire, replacement components in mains circuits, including the power transformer,

st leads, and input jacks, must be purchased from Keithley Instruments. Standard fuses, with applicable national safety ap-

te provals, may be used if the rating and type are the same. Other components that are not safety related may be purchased from other suppliers as long as they are equivalent to the original component. (Note that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product.) If you are unsure about the applicability of a replacement component, call a Keithley Instruments office for information.

To clean an instrument, use a damp cloth or mild, water based cleaner. Clean the exterior of the instrument only. Do not apply

leaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that consist of a circuit board with

c no case or chassis (e.g., data acquisition board for installation into a computer) should never require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board should be returned to the factory for proper cleaning/servicing.

NING heading in a manual explains dangers that might result in personal injury or death. Always read the associated

efer to the operating instructions located in the manual.

Table of Contents

1 Performance Verification

Introduction..........................................................................................1-2

Verification test requirements..............................................................1-3

Restoring factory defaults....................................................................1-6

Performing the verification test procedures.........................................1-7

Compliance considerations..................................................................1-9

Ouptut voltage accuracy ....................................................................1-11

Voltage measurement accuracy.........................................................1-13

Output current accuracy.....................................................................1-14

Current measurement accuracy..........................................................1-16

Resistance measurement accuracy.....................................................1-17

2 Calibration

Introduction..........................................................................................2-2

Environmental conditions....................................................................2-3

Calibration considerations ...................................................................2-4

Front panel calibration.........................................................................2-9

Remote calibration.............................................................................2-16

Single-range calibration.....................................................................2-24

3 Routine Maintenance

Introduction..........................................................................................3-2

Line fuse replacement..........................................................................3-2

4 Troubleshooting

Introduction..........................................................................................4-2

Repair considerations...........................................................................4-2

Power-on self-test ................................................................................4-2

Front panel tests...................................................................................4-3

Principles of operation.........................................................................4-5

Troubleshooting.................................................................................4-13

Analog circuitry checks.....................................................................4-16

Battery replacement...........................................................................4-17

No comm link error ...........................................................................4-18

5 Disassembly

Introduction .........................................................................................5-2

Handling and cleaning......................................................................... 5-2

Static sensitive devices........................................................................ 5-3

Assembly drawings .............................................................................5-4

Case cover removal .............................................................................5-5

Analog board removal......................................................................... 5-6

Digital board removal..........................................................................5-7

Front panel disassembly......................................................................5-8

Removing power components............................................................. 5-9

Instrument re-assembly .....................................................................5-10

6 Replaceable Parts

Introduction .........................................................................................6-2

Parts lists ............................................................................................. 6-2

Ordering information...........................................................................6-2

Factory service .................................................................................... 6-3

Component layouts.............................................................................. 6-3

A Specifications

Accuracy calculations ........................................................................ A-2

B Command Reference

Introduction ........................................................................................ B-2

Command summary ........................................................................... B-2

Miscellaneous commands .................................................................. B-3

Detecting calibration errors.............................................................. B-11

Detecting calibration step completion.............................................. B-13

C Calibration Programs

Introduction ........................................................................................ C-2

Computer hardware requirements...................................................... C-2

Software requirements........................................................................ C-2

Calibration equipment........................................................................ C-3

General program instructions............................................................. C-3

Requesting calibration constants........................................................ C-7

List of Illustrations

1 Performance Verification

Connections for voltage verification tests .........................................1-12

Connections for current verification tests..........................................1-15

Connections for resistance accuracy verification .............................1-18

2 Calibration

Voltage calibration test connections..................................................2-11

Current calibration test connections ..................................................2-13

3 Routine Maintenance

Rear panel ............................................................................................3-3

4 Troubleshooting

Overall block diagram .........................................................................4-5

Analog circuitry block diagram...........................................................4-7

Power supply block diagram ...............................................................4-8

Output stage simplified schematic.......................................................4-9

Digital circuitry block diagram..........................................................4-11

List of Tables

1 Performance Verification

Recommended verification equipment................................................1-4

Output voltage accuracy limits..........................................................1-11

Voltage measurement accuracy limits...............................................1-13

Output current accuracy limits .......................................................... 1-14

Current measurement accuracy limits

Ohms measurement accuracy limits.................................................. 1-18

2 Calibration

Recommended calibration equipment.................................................2-5

Calibration unlocked states .................................................................2-6

Front panel voltage calibration.......................................................... 2-11

Front panel current calibration .......................................................... 2-14

Remote calibration command summary............................................2-16

Recommended :CALibration:PROTected:SENSe............................2-17

parameter ranges

Recommended :CALibration:PROTected:SOURce .........................2-18

parameter ranges

Voltage calibration initialization commands.....................................2-20

Voltage range calibration commands................................................2-20

Current calibration initialization

Current range calibration commands ................................................2-22

............................................. 1-16

comm

ands .....................................2-22

3 Routine Maintenance

Power line fuse ....................................................................................3-2

4 Troubleshooting

Display board checks ........................................................................4-13

Power supply checks .........................................................................4-14

Digital circuitry checks .....................................................................4-15

Analog circuitry checks.....................................................................4-16

6 Replaceable Parts

Analog board parts list ........................................................................ 6-4

Digital board parts list.......................................................................6-11

Display board parts list......................................................................6-14

Mechanical parts list.......................................................................... 6-15

B Command Reference

Remote calibration command summary............................................. B-2

Recommended :CALibration:PROTected:SENSe .............................B-7

parameter ranges

Recommended :CALibration:PROTected:SOURce...........................B-9

parameter ranges

Calibration errors.............................................................................. B-12

Performance

Verification

1-2 Performance Verification

Introduction

Use the procedures in this section to verify that Model 2410 accuracy is within the limits stated in the instrument’s one-year accuracy specifications. You can perform these verification procedures:

• When you first receive the instrument to make sure it was not damaged during shipment.

• To verify that the unit meets factory specifications.

• To determine if calibration is required.

• Following calibration to make sure it was performed properly.

WARNING The

only. Do not attempt these procedures unless you are qualified to do Some of these procedures may expose you to hazardous voltages, which could cause personal injury or death if contacted. Use standard safety precautions when working with hazardous voltages.

NOTE

If the instrument is still under warranty and its performance is outside specified limits, contact your Keithley representative or the factory to determine the correct course of action.

rmation in this section is intended for qualified service personnel

info

so.

Verification test requirements

Be sure that you perform the verification tests:

• Under the proper environmental conditions.

• After the specified warm-up period.

• Using the correct line voltage.

• Using the proper test equipment.

• Using the specified output signal and reading limits.

Environmental conditions

Conduct your performance verification procedures in a test environment with:

Performance Verification 1-3

• An ambient temperature of 18-28

• A relative humidity of less than 70% unless otherwise noted.

Warm-up period

Allow the Model 2410 to procedures. If the instrument has been subjected to temperature extremes (those outside the ranges stated above), allow additional time for the instrument’s internal temperature to stabilize. Typically, allow one extra hour to stabilize a unit that is 10°C outside the specified temperature range.

Also, allow

Line power

The Model 2410 requires a line voltage of 100 to 240V and a line frequency of 50 Hz to 60 Hz. Verification tests must be performed within this range.

°C.

warm up for at least one hour before conducting the verification

the test equipment to warm up for the minimum time specified by the manufacturer.

1-4 Performance Verification

Recommended test equipment

Table 1-1 summarizes recommended v

erification equipment. You can use alternate

equipment if that equipment has specifications at least as good as those listed in Table 1-1. Be aware, however, that test equipment uncertainty will add to the uncertainty of each measurement. Generally, test equipment uncertainty should be at least four times better than corresponding Model 2410 specifications. Table 1-1 lists the uncertainties of the recommended test equipment including the maximum allowable uncertainty of alternate test equipment shown in parentheses.

Table 1-1

Recommended verification equipment

Manufacturer/

Description

Digital multimeter Hewlett Packard

Resistance calibrator Fluke 5450A Resistance** 19Ω:

** 90-day full-scale accuracy specifications of ranges required for various measurement points.

** 90-day specifications of nominal resistance values shown. Maximum uncertainty of alternate test

ipment is shown in parentheses.

equ

el Accuracy

Mod

3458A

DC voltage*

DC current*

1V: 10V: 100V: 1000V: 1µA:

10μA: 100μA:

1mA: 100mA: 1A:

190Ω:

1.9kΩ: 19kΩ: 190kΩ:

1.9MΩ: 19MΩ: 100MΩ:

±5.6ppm ±4.3ppm ±6.3ppm ±6.1ppm ±55ppm ±25ppm ±23ppm ±20ppm ±35ppm ±110ppm

±23ppm (±340ppm) ±10.5ppm (±370ppm) ±8ppm (±265ppm) ±7.5ppm (±250ppm) ±8.5ppm (±260ppm) ±11.5ppm (±365ppm) ±30ppm (±315ppm) ±120ppm (±1700ppm)

Verification limits

The verification limits stated in this section have been calculated using only the Model 2410 one-year accuracy spe particular measurement falls outside the allowable range, recalculate new limits based both on Mod

el 2410 specifications and corresponding test equipment specifications.

Example limits calculation

As an example of how verification limits are calculated, assume you are testing the 20V DC output range using a 20V output value. Using the Model 2410 one-year accuracy specification for 20V DC output of ±(0.02% of output + 2.4mV offset), the calculated output limits are:

Outp

ut limits = 20V ± [(20V × 0.02%

Output limits = 20V ± (0.004 + 0.0024)

Output limits = 20V ± 0.0064V

Output limits = 19.9936V to 20.0064V

Resistance limits calculation

When verifying the ohms function, it will probably be necessary to recalculate resistance limits based on the actual calibrator resistance values. You can calculate resistance reading limits in the same manner described above. Be sure to use the actual calibrator resistance values and the Model 2410 normal accuracy specifications for your calculations.

Performance Verification 1-5

cifications, and they do not include test equipment uncertainty. If a

) + 2.4mV]

As an example, assume that you are testing the 20kΩ range and that the actual value of the nominal 19kΩ calibrator resistor is 19.025kΩ. Using the Model 2410 one-year normal accuracy specifications of ±(0.07% of reading + 6Ω), the recalculated reading limits are:

Reading limits = 19.025kΩ ± [(19.025kΩ × 0.07%) + 6Ω]

Reading limits = 19.025kΩ ± 19.3Ω

ding limits = 19.0057kΩ to 19.0

Rea

443kΩ

1-6 Performance Verification

Restoring factory defaults

Before performing the verification proced

(bench) defaults as follows:

1. P

ress the MENU key. The instrument will display the following prompt:

MAIN MENU

SAVESETUP COMMUNICATION CAL

2. Select SAVESETUP, and then press ENTER. The unit displays:

SAVESETUP MENU

GLOBAL SOURCE-MEMORY

3. Select GLOBAL, and then press ENTER. The unit then displays:

GLOBAL SETUP MENU

SAVE RESTORE POWERON RESET

4. Select RESET, and then press ENTER. The unit displays:

RESET ORIGINAL DFLTS

BENCH GPIB

5. Select BENCH, and then press ENTER. The unit then displays:

RESETTING INSTRUMENT

ENTER to confirm; EXIT to abort

6. Press ENTER to restore bench defaults, and note the unit displays the following:

RESET COMPLETE

BENCH defaults are now restored

Press ENTER to continue

7. Press ENTER and then EXIT as necessary to return to normal display.

ures, restore the instrument to its factory front panel

Performance Verification 1-7

Performing the verification test procedures

Test summary

• DC voltage output accuracy

• DC voltage measurement accuracy

• DC current output accuracy

• DC current measurement accuracy

• Resistance measurement accuracy

If the Model 2410 is not within specifications and not under warranty, see the calibration procedures in Section 2 for information on calibrating the unit.

Test considerations

When performing the verification procedures:

• Be sure to restore factory front panel defaults as outlined above.

• Make sure the test equipment is properly warmed up and connected to the Model 2410 INPUT/OUTPUT TERMINALS key.

• Make sure the Model 2410 is set to the correct source range.

• Be sure the Model 2410 output is turned on before making measurements.

• Be sure the test equipment is set up for the proper function and range.

• Allow the Model 2410 output signal to settle before making a measurement.

• Do not connect test equipment to the Model 2410 through a scanner, multiplexer, or o

r switching equipment.

jacks. Also be sure that the front panel jacks are selected with the

WARNING The

round) is 250V peak. Exceeding this value may cause a breakdown in

insulation, creating a shock hazard.

CAUTION

The max SENSE HI and LO is 1100V peak. The maximum voltage between INPUT/ OUTPUT HI and 4-WIRE SENSE HI or between INPUT/OUTPUT LO and 4-WIRE SENSE LO is 5V. Exceeding these voltage values may result in instrument damage.

imum common-mode voltage (voltage between LO and chassis

max

imum voltage between INPUT/OUTPUT HI and LO or 4-WIRE

1-8 Performance Verification

Setting the source range and output value

Before testing each verification point, you must properly set the source range and output

value as outlined below.

1. Press either the SOURCE V or SOURCE I key to select the appropriate source function.

2. Press the EDIT key as required to select the source display field. Note that the cursor will flash

3. With the cursor in the source display field flashing, set the source range to the lowest

oss

ible range for the value to be sourced using the up or down RANGE key. For example, you should use the 20V source range to output a 20V source value. With a 20V so

rce value and the 20V range selected, the source field display will appear as follows:

Vsrc:+20.0000 V

4. With the source field cursor flashing, set the source output to the required value using eithe

• The SOURCE adjustment and left and right arrow keys.

• The numeric keys.

5. Note that the source output value will be updated immediately. You need not press ENTE

in the source field while its value is being edited.

R when setting the source value.

Setting the measurement range

When simultaneously sourcing and measuring either voltage or current, the measure range is coupled to the source range, and you cannot independently control the measure range. Thus, it is not necessary for you to set the range when testing voltage or current measurement accuracy.

Compliance considerations

Compliance limits

When sourcing voltage, you can set the SourceMeter to limit current from 1nA to 1.05A. Conversely, when sourcing current, you can set the SourceMeter to limit voltage from 200μV to 1.1kV. The SourceMeter output will not exceed the programmed compliance limit.

Types of compliance

Performance Verification 1-9

There are two types o value is lower, the output will clamp at either the displayed compliance setting (real) or at the maximum measurement range reading (range).

The real compliance condition can occur when the compliance setting is less than the highest possible reading of the measurement range. When in compliance, the source output clamps at th

e displayed compliance value. For example, if the compliance voltage is set to 1V and the

measurement range is 2V, the output voltage will clamp (limit) at 1V.

Range compliance can occur when the compliance setting is higher than the possible reading of the selected measurement range. When in compliance, the source output clamps at the maximum measurement range reading (not the compliance value). For example, if the compliance voltage is set to 1V and the measurement range is 200mV, the output voltage will clamp (limit) at 210mV.

f compliance that can occur: Real and range. Depending upon which

Determining compliance limit

The relationships to determine which compliance is in effect are summarized as follows. They assume the measurement function is the same as the compliance function.

• Compliance Setting < Measurement Range = Real Compliance

• Measu

You can determine the compliance that is in effect by comparing the displayed compliance setting possible reading on the present measurement range, the compliance setting is the compliance limit. If the compliance setting is higher than the measurement range, the maximum reading on that measurement range is the compliance limit.

rement Range < Compliance Setting = Range Compliance

to the present measurement range. If the compliance setting is lower than the maximum

1-10 Performance Verification

Taking the SourceMeter out of compliance

Verification measurements should not be made when the SourceMeter is in compliance. For purposes of the verification tests, the SourceMeter can be taken out of compliance by going into the edit mode and increasing the compliance limit.

NOTE Do no

the range. Always use the recommended range and source settings when performing the verification tests.

t take the unit out of compliance by decreasing the source value or changing

Output voltage accuracy

Follow the steps below to verify that Model 2410 output voltage accuracy is within specified limits. This test involves setting the output voltage to each full-range value and measuring the voltages with a precision digital multimeter.

1. With the power off, connect the digital multimeter to the Model 2410 INPUT/ jac

ks as shown in Figure 1-1.

2. Select the multimeter DC volts measuring function.

3. Set the voltage source protection to >1100V. To do so, press CONFIG and then SOURCE V-SOURCE menu select PROTECTION, and set the voltage source protection limit to >1100V.

4. Press the Model 2410 SOURCE V key to source voltage, and make sure the source output is turned on

5. Verif

6. Repeat the procedure for negative output voltages with the same magnitude as thos

7. Repeat the entire procedure using the rear panel INPUT/OUTPUT jacks. Be sure to

y output voltage accuracy for each of the voltages listed in Table 1-2. For each test

poin

• Select the correct source range.

• Set the Model 2410 output voltage to the indicated value.

• Verify that the multimeter reading is within the limits given in the table.

listed

select th

Table 1-2.

anel jacks with the front panel TERMINALS key.

e rear p

Performance Verification 1-11

OUTPUT

to access the CONFIGURE V-SOURCE menu. Then

Table 1-2

Output voltage accuracy limits

Model 2410

source range

200mV

20V

1000V

Model 2410

output voltage setting

200.000mV

2.00000V

20.0000V

975.00V

Output voltage limits

(1 year, 18°C–28°C)

199.360 to 200.640mV

1.99900 to 2.00100V

19.9936 to 20.0064V

974.705 to 975.295V

1-12 Performance Verification

Figure 1-1

Connections for voltage verification tests

EDIT

DISPLAY

TOGGLE

POWER

LOCAL

DIGITS SPEED

MEAS

REL

FILTER

STORE

2410 1100V SourceMeter

SOURCE

FCTN

230

EDIT

TRIG

SWEEP

LIMIT

+/-

EXIT ENTER

RECALL

CONFIG MENU

Model 2410

2410 SourceMeter

SENSE

INPUT/

4-WIRE

Ω 4 WIRE

OUTPUT

SENSE

1100V

PEAK

250V PEAK

RANGE

AUTO

TERMINALS

ON/OFF

FRONT/

RANGE

REAR

OUTPUT

Digital Multimeter

Input HI

Input LO

Voltage measurement accuracy

Follow the steps below to verify that the Model 2410 voltage measurement accuracy is within specified limits. The test involves setting the source voltage to full-range values, as measured by a precision digital multimeter, and then verifying that the Model 2410 voltage readings are within required limits.

Performance Verification 1-13

1. With the power off, connect the digital multimeter to the Model 2410 INPUT/ ks as shown in Figure 1-1.

jac

2. Select the multimeter DC volts function.

3. Set the voltage source protection to >1100V. To do so, press CONFIG then SOURCE V

to access voltage source protection limit to >1100V.

4. Set the Model 2410 to both source and measure voltage by pressing the SOURCE V and

5. Verify output voltage accuracy for each of the voltages listed in Table 1-3. For each test

poin

• Select the correct source range.

• Set the Model 2410 output voltage to the indicated value as measured by the digital

• Verify that the Model 2410 voltage reading is within the limits given in the table.

NOTE It ma

6. Repeat the procedure for negative source voltages with the same magnitudes as those

listed in

7. Repeat the entire procedure using the rear panel INPUT/OUTPUT jacks. Be sure to

select the rear p

the CONFIGURE V-SOURCE menu, then select PROTECTION, and set the

S V keys, and make sure the source output is turned on.

eter.

ultim

ot be possible to set the voltage source to the specified value.

y n

Use the closest possible setting, and modify reading limits accordingly.

Table 1-3.

anel jacks with the front panel TERMINALS key.

OUTPUT

Table 1-3

Voltage measurement accuracy limits

Model 2410 source

and measure

range*

200mV

20V

1000V

* Measure range coupled to source range when simultaneously sourcing and

measuring voltage. ** As measured by precision digital multimeter. Use closest possible value, and

modify reading

limits accordingly if necessary.

Source voltage**

200.000mV

2.00000V

20.0000V

975.00V

Model 2410 voltage

reading limits

(

1 year, 18°C–28°C)

199.676 to 200.324mV

1.99946 to 2.00054V

19.9960 to 20.0040V

974.80 to 975.20V

1-14 Performance Verification

Output current accuracy

Follow the steps below to verify that Model 2410 output current accuracy is within specified limits. The test involves setting the output current to each full-range value and measuring the currents with a precision digital multimeter.

1. With the power off, connect the digital multimeter to the Model 2410 INPUT/OUTPUT jac

ks as shown in Figure 1-2.

2. Select the multimeter DC current measuring function.

3. Press the Model 2410 SOURCE I key to source current, and make sure the source output is tu

rned

on.

4. Verify output current accuracy for each of the currents listed in Table 1-4. For each

poin

• Select the correct source range.

• Set the Model 2410 output current to the correct value.

• Verify that the multimeter reading is within the limits given in the table.

5. Repeat the procedure for negative output currents with the same magnitudes as those listed in

6. Repeat the entire procedure using the rear panel INPUT/OUTPUT jacks. Be sure to select th

Table 1-4.

anel jacks with the front panel TERMINALS key.

e rear p

test

Table 1-4

Output current accuracy limits

Model 2410

source range

1µA

10µA

100µA

1mA

20mA

100mA

Model 2410 output

curre

1.00000µA

10.0000µA

100.000µA

1.00000mA

20.0000mA

100.000mA

1.00000A

nt se

tting

Output current limits

(1 year, 18°C–28°C)

0.99905 to 1.00095µA

9.9947 to 10.0053µA

99.949 to 100.051µA

0.99946 to 1.00054mA

19.9870 to 20.0130mA

99.914 to 100.086mA

0.99640 to 1.00360A

Figure 1-2

Connections for current verification tests

MEAS

EDIT

LOCAL

DIGITS SPEED

230

REL

FILTER

RECALL

STORE

DISPLAY

TOGGLE

POWER

Model 2410

Digital Multimeter

Performance Verification 1-15

SENSE

INPUT/

Ω 4 WIRE

OUTPUT

1100V

PEAK

2410 1100V SourceMeter

2410 SourceMeter

SOURCE

FCTN

EDIT

TRIG

SWEEP

LIMIT

+/-

EXIT ENTER

CONFIG MENU

250V PEAK

RANGE

AUTO

TERMINALS

ON/OFF

FRONT/

RANGE

REAR

OUTPUT

Input LO

Amps

1-16 Performance Verification

Current measurement accuracy

Follow the steps below to verify that Model 2410 current measurement accuracy specified limits. The procedure involves applying accurate currents from the Model 2410 current source and then verifying that Model 2410 current measurements are within required limits.

1. W

ith the power off, connect the digital multimeter to the Model 2410 INPUT/OUTPUT

jacks a

s shown in Figure 1-2.

2. Select the multimeter DC current function.

3. Set the Model 2410 to both source and measure current by pressing the SOURCE I and I keys, and make sure the source output is turned on.

MEAS

4. Verify measure current accuracy for each of the currents listed in Table 1-5. For each

measurem

• Select the correct source range.

• Set the Model 2410 source output to the correct value as measured by the digi

• Verify that the Model 2410 current reading is within the limits given in the table.

NOTE It ma

5. Repeat the procedure for negative calibrator currents with the same magnitudes as those

listed in Ta

6. Repeat the entire procedure using the rear panel INPUT/OUTPUT jacks. Be sure to

select the rear pan

ent:

multimet

possible setting, and modify reading limits accordingly.

er.

t be possible to set the current source to the specified value. Use the closest

y no

ble 1-5.

el jacks with the front panel TERMINALS key.

is within

tal

Table 1-5

Current measurement accuracy limits

Model 2410 source

and measure

range*

1µA

10µA

100µA

1mA

20mA

100mA

** Measure range coupled to source range when simultaneously sourcing

and measuring current.

** As measured by precision digital multimeter. Use closest possible value,

nd mod

ify reading limits accordingly if necessary.

Source

current**

1.00000µA

10.0000µA

100.000µA

1.00000mA

20.0000mA

100.000mA

1.00000A

Model 2410 current

reading limits

(1 ye

ar, 18°C–28°C)

0.99941 to 1.00059µA

9.9966 to 10.0034µA

99.969 to 100.031µA

0.99967 to 1.00033mA

19.9918 to 20.0082mA

99.939 to 100.061mA

0.99723 to 1.00277A

Resistance measurement accuracy

Follow the steps below to verify that Model 2410 resistance measurement accuracy is within specified calibrator and then verifying that Model 2410 resistance measurements are within required limits.

NOTE It may no

limits. This procedure involves applying accurate resistances from a resistance

1. With the power off, connect the resistance calibrator to the Model 2410 INPUT/

OUTPUT and 4-WIRE SENSE jacks as shown in Figure 1-3. Be sure to use the fourwire connections as shown.

2. Select the resistance calibrator external sense mode.

3. Configure the Model 2410 ohms function for the 4-wire sense mode as follows:

• Press CONFIG then MEAS Ω. The instrument will display the following: CONFIG OHMS

SOURCE SENSE-MODE GUARD

• Select SENSE-MODE, and then press ENTER. The following will be displayed:

SENSE-MODE

2-WIRE 4-WIRE

• Select 4-WIRE, and then press ENTER.

• Press EXIT to return to normal display.

4. Press MEAS Ω to select the ohms measurement function, and make sure the source

out-put is turned on.

5. Verify ohms measurement accuracy for each of the resistance values listed in Table 1-6.

For each measurement:

• Set the resistance calibrator output to the nominal resistance or closest available value.

t be possible to set the resistance calibrator to the specified value. Use

the closest possible setting, and modify reading limits accordingly.

Performance Verification 1-17

• Select the appropriate ohms measurement range with the RANGE keys.

• Verify that the Model 2410 resistance reading is within the limits given in the table.

6. Repeat the entire procedure using the rear panel INPUT/OUTPUT and 4-WIRE SENSE jack

re to select the rear panel jacks with the front panel TERMINALS key.

s. Be su

1-18 Performance Verification

Table 1-6

Ohms measurement accuracy limits

Model 2410

range

Calibrator

resistance*

Model 2410 resistance

reading limit

s**

(1 year, 18°C–28°C)

20Ω

200Ω

2kΩ

20kΩ

200kΩ

2MΩ

20MΩ

200MΩ

19Ω

190Ω

1.9kΩ 19kΩ

190kΩ

1.9MΩ 19MΩ

100MΩ

18.9731 to 19.0269Ω

189.709 t

o 190.291Ω

1.89788 to 1.90212kΩ

18.9807 to 19.0212kΩ

189.807 to 190.193kΩ

1.89712 to 1.90288MΩ

18.9748 to 19.0252MΩ

99.316 to 100.684MΩ

** Nominal resistance value.

** Reading limits based on Model 2410 normal accuracy specifica-

tions and

nominal resistance values. If actual resistance values

ffer

from nominal values shown, recalculate reading limits

di using actual calibrator resistance values and Model 2410 normal accuracy specifications. See verification limits earlier in this section for details.

igure 1-3

Connections for resistance accuracy verification

DISPLAY

TOGGLE

POWER

MEAS

EDIT

DISPLAY

REL

LOCAL

FILTER

TOGGLE

LOCAL

REL

FILTER

POWER

DIGITS SPEED

STORE

DIGITS SPEED

STORE

2410 1100V SourceMeter

SOURCE

FCTN

230

EDIT

RELFILTER

LIMIT

TRIG

SWEEP

LIMIT

+/-

Model 2410

RECALL

DIGITS RATE

RECALL

CONFIG MENU

Model 2400

EXIT ENTER

EDIT

2400 SourceMeter

2410 SourceMeter

SENSE

INPUT/

Ω 4 WIRE

OUTPUT

SENSE

INPUT/

4-WIRE

Ω 4 WIRE

OUTPUT

SENSE

250V

PEAK

1100V

PEAK

250V PEAK

RANGE

AUTO

RANGE

TERMINALS

ON/OFF

FRONT/

RANGE

ON/OFF

FRONT/

REAR

OUTPUT

Output HI

Resistance Calibrator

Output HI

Output LO

Sense HI

Sense LO

Calibration

2-2 Calibration

Introduction

Use the procedures in this section to calibrate the Model 2410. These procedures require accurate test equipmen performed either from the front panel, or by sending SCPI calibration commands over the IEEE-488 bus or RS-232 port with the aid of a computer.

WARNING The information in this section is intended for qualified service personnel

t to measure precise DC voltages and currents. Calibration can be

only. Do not attempt these procedures unless you are qualified to do so. Some of these procedures may expose you to hazardous voltages.

Environmental conditions

Temperature and relative humidity

Conduct the calibration procedures at an ambient temperature of 18-28°C with relative

humidity

Warm-up period

above allow one extra hour to stabilize a unit that is 10°C (18°F) outside the specified temperature range.

of less than 70% unless otherwise noted.

Allow the Model 2410 to warm up for at least one hour before performing calibration.

If the instrument has been subjected to temperature extremes (those outside the ranges stated

), allow additional time for the instrument’s internal temperature to stabilize. Typically,

Also, allow the test equipment to warm up for the minimum time specified by the

anufa

cturer.

Calibration 2-3

Line power

The Model 2410 requires a line voltage of 100 to 240V at line frequency of 50 to 60Hz. The

instrument must be calibrated within this range.

2-4 Calibration

Calibration considerations

When performing the calibration procedures:

• Make sure that the test equipment is properly warmed up and connected to the Model 2410 fron selected with the TERMINALS switch.

• Always allow the source signal to settle before calibrating each point.

• Do not connect test equipment to the Model 2410 through a scanner or other switchi equipment

• If an error occurs during calibration, the Model 2410 will generate an appropriate error m

t panel INPUT/OUTPUT jacks. Also be certain that the front panel jacks are

essage. See Appen

dix B for more information.

WARNING The maximum comm

CAUTION The

Calibration cycle

Perform calibration at least once a year to ensure the unit meets or exceeds its specifications.

NOTE Calibration constants are stored in volatile memories of the Model 2410, which are

protected by a replaceable battery when power is off. Typical life for the battery is approximately 10 years, but the battery should be replaced if the voltage drops below 2.5V regardless of age. See Section 4 for battery repla

on-mode voltage (voltage between LO and chassis

ground) is 250V peak. Exceeding this value may cause a breakdown in insulation, creating a shock hazard.

maximum volt SENSE HI and LO is 1100V peak. The maximum voltage between INPUT/ OUTPUT HI and 4-WIRE SENSE HI or between INPUT/OUTPUT LO and 4-WIRE SENSE LO is 5V. Exceeding these voltage values may result in instrument damage.

age between INPUT/OUTPUT HI and LO or 4-WIRE

cement details.

Recommended calibration equipment

Table 2-1 lists the recommended equipment for the calibration procedures. You can use alternate equipment as long as that equipment has specifications at least as good as those listed in the table. Where possible, test equipment specifications should be at least four times better than corresponding Model 2410 specifications.

Table 2-1

Recommended calibration equipment

Calibration 2-5

Description

Digital Multimeter Hewlett Packard

* 90-day, full-scale accuracy specifications of ranges required for various measurement points.

Unlocking calibration

Before performing calibration, you must first unlock calibration by entering or sending the calibration password as discussed below:

Unlocking calibration from the front panel

1. Press the MENU key, then choose CAL and press ENTER. The instrument will display the following:

CALIBRATION

UNLOCK EXECUTE VIEW-DATES

SAVE LOCK CHANGE-PASSWORD

2. Select UNLOCK, and then press ENTER. The instrument will display the following:

PASSWORD:

Use , , ▲, ▼, ENTER, or EXIT.

3. Use the up and down RANGE keys to select the letter or number and use the left and right arrow keys to choose the position. (Press down RANGE for letters; up RANGE for numbers.) Enter the present password on the display. (Front panel default: 002410.)

Manufacturer/ Model

HP3458A

Accura

cy*

DC voltage

DC current

1V: 10V: 100V: 1000V: 1µA: 10µA: 100µA: 1mA: 100mA: 1A:

±5.6ppm ±4.3ppm ±6.3ppm ±6.1ppm ±55ppm ±25ppm ±23ppm ±20ppm ±35ppm ±110ppm

2-6 Calibration

4. Once the correct password is displayed, press the ENTER key. If the password was

correctly entered, the following message will be displayed:

CALIBRATION UNLOCKED

Calibration can now be executed.

5. Press EXIT to return to normal display. Calibration will be unlocked and will assume the states summarized in Table 2-2. Attempts to change any of the settings listed below with calibration unlocked will result in an error +510, "Not permitted with cal unlocked."

NOTE With

calibratio

n unlocked, the sense function and range track the source function and range. That is, when :SOUR:FUNC is set to VOLT, the :SENS:FUNC setting will be 'VOLT:DC'. When :SOUR:FUNC is set to CURR, the :SENS:FUNC setting will be 'CURR:DC'. A similiar command coupling exists for :SOUR:VOLT:RANG/ :SENS:VOLT:RANG/ and SOUR:CURR:RANG/:SENS:CURR:RANG.

Table 2-2

Calibration unlocked states

Mode State Equivalent remote command

Concurrent Functions Sense Function Sense Volts NPLC Sense Volts Range Sense Current NPLC Sense Current Range Filter Count Filter Control Filter Averaging Source V Mode Volts Autorange Source I Mode Current Autorange Autozero Trigger Arm Count Trigger Arm Source Trigger Count Trigger Source

OFF Source

1.0 Source V

1.0 Source I 10 REPEAT ON FIXED OFF FIXED OFF ON 1 Immediate 1 Immediate

:SENS:FUNC:CONC OFF :SENS:FUNC <source_ function> :SENS:VOLT:NPLC 1.0 :SENS:VOLT:RANG <source_V_range> :SENS:CURR:NPLC 1.0 :SENS:CURR:RANG <source_ I_ range> :SENS:AVER:COUN 10 :SENS:AVER:TCON REPeat :SENS:AVER:STAT ON :SOUR:VOLT:MODE FIXED :VOLT:RANG:AUTO OFF :SOUR:CURR:MODE FIXED :SOUR:CURR:RANG:AUTO OFF :SYST:AZERO ON :ARM:COUNT 1 :ARM:SOUR IMMediate :TRIG:COUNT 1 :TRIG:SOUR IMMediate

Unlocking calibration by remote

To unlock calibration via remote, send the following command:

:CAL:PROT:CODE '<password>'

For example, the following command uses the default password:

:CAL:PROT:CODE 'KI002410'

Changing the password

The default password may be changed from the front panel or via remote as discussed below.

Changing the password from the front panel

Follow the steps below to change the password from the front panel:

1. Press the MENU key, then choose CAL and press ENTER. The instrument will display the followin

CALIBRATION

UNLOCK EXECUTE VIEW-DATES

SAVE LOCK CHANGE-PASSWORD

2. Select UNLOCK, and then enter the password. (Default: 002410.)

3. Select CHANGE-PASSWORD, and then press ENTER. Th

following:

New Pwd: 002410

Use , , ▲, ▼, ENTER, or EXIT.

4. Using the range keys, and the left and right arrow keys, enter the new password on the display.

5. Once the desired password is displayed, press the ENTER key to store the new password.

Calibration 2-7

e instrument will display the

Changing the password by remote

To change the calibration password by remote, first send the present password, and then send the new password. For example, the following command sequence changes the password from the 'KI002410' remote default to 'KI_CAL':

:CAL:PROT:CODE 'KI002410' :CAL:PROT:CODE 'KI_CAL'

You can use any combination of letters and numbers up to a maximum of eight characters.

NOTE If

you change the first two characters of the password to something other than "KI,"

you will no

t be able to unlock calibration from the front panel.

2-8 Calibration

Resetting the calibration password

Viewing calibration dates and calibration count

If you lose the calibration password, you can unlock calibration by shorting together the CAL

ads, which are located on the display board. Doing so will also reset the password to the factory

p default (KI002410).

See Section 5 for details on disassembling the unit to access the CAL pads. Refer to the display board component layout drawing at the end of Section 6 for the location of the CAL pads.

When calibration is locked, only the UNLOCK and VIEW-DATES selections are accessible in the calibration menu. To vie

1. From normal display, press MENU, select CAL, and then press ENTER. The unit will display the following:

CALIBRATION

UNLOCK EXECUTE VIEW-DATES

2. Select VIEW-DATES, and then press ENTER. The Model 2410 will display the next and last calibration dates and the calibration count as in the following example:

NEXT CAL: 12/15/97

Last calibration: 12/15/96 Count: 0001

w the calibration dates and calibration count at any time:

Calibration errors

The Model 2410 checks for errors after each calibration step, minimizing the possibility that

improper calibration may occur due

Front panel error reporting

If an error is detected during comprehensive calibration, the instrument will display an appropriate error message (see Appendix B). The unit will then prompt you to repeat the calibration step that caused the error.

Remote error reporting

You can detect errors while in remote by testing the state of EAV (Error Available) bit (bit

2) in the status byte. (Use the *STB? query to request the status byte.) Query the instrument for the type of error by using the appropriate :SYST:ERR? query. The Model 2410 will respond with the error number and a text message describing the nature of the error. See Appendix B fo details.

to operator error.

Front panel calibration

The front panel calibration procedure described below calibrates all ranges of both the current and voltage source and measure functions. Note that each range is separately calibrated by repeating the entire procedure for each range.

Step 1: Prepare the Model 2410 for calibration

Calibration 2-9

1. Turn on

least one hour before performing calibration.

2. Press the MENU key, and then choose CAL and press ENTER. Select UNLOCK, and

then press ENTER. The instrument will display the following:

PASSWORD:

Use , , ▲, ▼, ENTER, or EXIT.

3. Use the up and down range keys to select the letter or number, and use the left and right arrow keys to choose the position. Enter the present password on the display. (Front panel default: 002410.) Press ENTER to complete the process.

4. Press EXIT to return to normal display. Instrument operating states will be set as summarized in Table 2-2.

the Model 2410 and the digital multimeter, and allow them to warm up for at

Step 2: Voltage calibration

Perform the steps below for each voltage range, using Table 2-3 as a guide.

1. Connect the Model 2410 to the digital multimeter, as shown in Figure 2-1. Select the multimeter DC volts measurement function.

NOTE The 2-wire connections shown assume that remote sensing is not used. Remote

ing may be used, if desired, but it is not essential when using the recommended

sens

igital multimeter.

2. Fr

om normal display, press the SOURCE V key.

3. Press the EDIT key to select the source field (cursor flashing in source display field), and th

en use th

4. From normal display, press MENU.

5. Select CAL, and then press ENTER. The unit will display the following:

CALIBRATION

UNLOCK EXECUTE VIEW-DATES

6. Select EXECUTE, and then press ENTER. The instrument will display the following message:

V-CAL

Press ENTER to Output +200.00mV

7. Press ENTER. The Model 2410 will source +200mV and simultaneously display the following:

DMM RDG: +200.0000mV

Use , , ▲, ▼, ENTER, or EXIT.

e down RANGE key to select the 200mV source range.

SAVE LOCK CHANGE-PASSWORD

2-10 Calibration

8. Note and record the DMM reading, and

then adjust the Model 2410 display to agree

exactly with the actual DMM reading. Use the up and down arrow keys to select the digit value, and use the left and right arrow keys to choose the digit position (or use the number keys, 0-9, +/-). Note that the display adjustment range is within ±10% of the present range.

9. After adjusting the display to agree with the DMM reading, press ENTER. The

instrument will then display the following:

V-CAL

Press ENTER to Output +000.00mV

10. Press ENTER. The Model 2410 will source 0mV and at the same time display the

following:

DMM RDG: +000.0000mV

Use , , ▲, ▼, ENTER, or EXIT.

11. Note and record the DMM reading, and then adjust the Model 2410 display to agree with

the actual DMM reading. Note that the display value adjustment limits are within ±1% of the present range.

12. After adjusting the display value to agree with the DMM reading, press ENTER. The

unit will then display the following:

V-CAL

Press ENTER to Output -200.00mV

13. Press ENTER. The Model 2410 will source -200mV and display the following:

DMM RDG: -200.0000mV

Use , , ▲, ▼, ENTER, or EXIT.

14. Note and record the DMM reading, and then adjust the Model 2410 display to agree with the DMM reading. Again, the maximum display adjustment is within ± 10% of the present range.

15. After adjusting the display value to agree with the DMM reading, press ENTER and note that the instrument displays:

V-CAL

Press ENTER to Output -000.00mV

16. Press ENTER. The Model 2410 will source -0mV and simultaneously display the following:

DMM RDG: +000.0000mV

Use , , ▲, ▼, ENTER, or EXIT.

17. Note and record the DMM reading, and then adjust the display to agree with the DMM reading. Once again, the maximum adjustment is within ±1% of the present range.

18. After adjusting the display to agree with the DMM reading, press ENTER to complete calibration of the present range.

19. Press EXIT to return to normal display, and then select the 2V source range. Repeat steps 2 through 18 for the 2V range.

20. After calibrating the 2V range, repeat the entire procedure for the 20V and 1000V ranges using Table 2-3 as a guide. Be sure to select the appropriate source range with the EDIT and RANGE keys before calibrating each range.

21. Press EXIT as necessary to return to normal display.

Figure 2-1

Voltage calibration test connections

Calibration 2-11

SENSE

INPUT/

4-WIRE

Ω 4 WIRE

OUTPUT

SENSE

1100V

PEAK

2410 SourceMeter

230

RECALL

2410 1100V SourceMeter

SOURCE

FCTN

EDIT

TRIG

SWEEP

LIMIT

+/-

EXIT ENTER

CONFIG MENU

MEAS

EDIT

LOCAL

DIGITS SPEED

REL

FILTER

STORE

DISPLAY

TOGGLE

POWER

Model 2410

250V PEAK

RANGE

AUTO

TERMINALS

ON/OFF

FRONT/

RANGE

REAR

OUTPUT

Table 2-3

Front panel voltage calibration

Source range*

0.2V

urce

So voltage

+200.00mV +000.00mV

-200.00mV

-000.00mV

+2.0000V +0.0000V

-2.0000V

-0.0000V

Multimeter voltage reading**

___________ mV ___________ mV ___________ mV ___________ mV

_____________V _____________V _____________V _____________V

Digital Multimeter

Input HI

Input LO

20V

1000V

+20.000V +00.000V

-20.000V

-00.000V

+975.00V +000.00V

-975.00V

-000.00V

_____________V _____________V _____________V _____________V

**Use EDIT and RANGE keys to select source range.

**Multimeter reading used in corresponding calibration

. See procedure.

step

2-12 Calibration

Step 3: Current calibration

Perform the following steps for each current range using Table 2-4 as a guide.

1. Connect the Model 2410 to the digital multimeter, as shown in Figure 2-2. Select the multimeter DC

2. From normal display, press the SOURCE I key.

3. Press the EDIT key to select the source display field, and then use the down RANGE

select the 1µA source range.

key to

4. From normal display, press MENU.

5. Select CAL, and then press ENTER. The unit will display the following:

CALIBRATION

UNLOCK EXECUTE VIEW-DATES

SAVE LOCK CHANGE-PASSWORD

6. Select EXECUTE, an message:

I-CAL

Press ENTER to Output +1.0000μA

7. Press ENTER. The Model 2410 will source +1µA and simultaneously display the following:

DMM RDG: +1.000000μA

Use , , ▲, ▼, ENTER, or EXIT.

8. Note and record the DMM reading, and then adjust the Model 2410 display to agree exactly with the actual DMM reading. Use the up and down arrow keys to select the digit value, and use the left and right arrow keys to choose the digit position (or use the number keys, 0-9, +/-). Note that the display adjustment range is within ±10% of the present range.

9. After adjusting the display to agree with the DMM reading, press ENTER. The instrument will then display the following:

I-CAL

Press ENTER to Output +0.0000μA

10. Press ENTER. The Model 2410 will source 0µA and at the same time display the

following:

DMM RDG: +0.000000μA

Use , , ▲, ▼, ENTER, or EXIT.

11. Note and record the DMM reading, and then adjust the Model 2410 display to agree with

the actual DMM reading. Note that the display value adjustment limits are within ±1% of the present range.

12. After adjusting the display value to agree with the DMM reading, press ENTER. The

unit will then display the following:

I-CAL

Press ENTER to Output -1.0000μA

13. Press ENTER. The Model 2410 will source -1µA and display the following:

DMM RDG: -1.000000μA

Use , , ▲, ▼, ENTER, or EXIT.

current measurement function.

d then press ENTER. The instrument will display the following

Calibration 2-13

14. Note and record the DMM reading, and then adjust the Model 2410 display to agree with the DMM reading. Again, the maximum display adjustment is within ± 10% of the present range.

15. After adjusting the display value to agree with the DMM reading, press ENTER and note th

at the instr

ument displays:

I-CAL

Press ENTER to Output -0.0000μA

16. Press ENTER. The Model 2410 will source -0µA and simultaneously display the following:

DMM RDG: +0.000000μA

Use , , ▲, ▼, ENTER, or EXIT.

17. Note and record the DMM reading, and then adjust the display to agree with the DMM reading. Once again, the maximum adjustment is within ±1% of the present range.

18. After adjusting the display to agree with the DMM reading, press ENTER to complete calibration

of the present range.

19. Press EXIT to return to normal display, and then select the 10µA source range using the EDIT

and up RANGE keys. Repeat steps 2 through 18 for the 10µA range.

20. After calibrating the 10µA range, repeat the entire procedure for the 100µA through 1A ran

using Table 2-4 as a guide. Be sure to select the appropriate source range with the

ges

EDIT and up RANGE keys before calibrating each range.

Figure 2-2

Current calibration test connections

MEAS

EDIT

DISPLAY

TOGGLE

POWER

LOCAL

DIGITS SPEED

FCTN

230

REL

LIMIT

FILTER

RECALL

STORE

Model 2410

Digital Multimeter

TRIG

+/-

CONFIG MENU

SWEEP

SOURCE

EXIT ENTER

2410 SourceMeter

2410 1100V SourceMeter

2420 3A SourceMeter

RANGE

EDIT

RANGE

4-WIRE

SENSE

INPUT/

Ω 4 WIRE

SENSE

OUTPUT

1100V

PEAK

250V

AUTO

PEAK

TERMINALS

ON/OFF

FRONT/

REAR

OUTPUT

Input LO

Amps

2-14 Calibration

Table 2-4

Front panel current calibration

Source range*

1µA

10µA

100µA

1mA

20mA

urce

So current

+1.0000µA +0.0000µA

-1.0000µA

-0.0000µA

+10.000µA +00.000µA

-10.000µA

-00.000µA

+100.00µA +000.00µA

-100.00µA

-000.00µA

+1.0000mA +0.0000mA

-1.0000mA

-0.0000mA

+20.000mA +00.000mA

-20.000mA

-00.000mA

Multimeter current reading**

____________ µA ____________ µA ____________ µA ____________ µA

___________ mA ___________ mA ___________ mA ___________ mA

100mA

**Use EDIT and RANGE keys to select source range.

**Multimeter reading used in corresponding calibration

step. See procedure.

+100.00mA +000.00mA

-100.00mA

-000.00mA

+1.0000A +0.0000A

-1.0000A

-0.0000A

___________ mA ___________ mA ___________ mA ___________ mA

_____________ A _____________ A _____________ A _____________ A

Calibration 2-15

Step 4: Enter calibration dates and save calibration

NOTE For temporary calibration without saving new calibration constants, proceed to Step

5: Lock out calibration.

1. From normal display, press MENU.

2. Select CAL, and then press ENTER. The Model 2410 will display the following:

CALIBRATION

UNLOCK EXECUTE VIEW-DATES

SAVE LOCK CHANGE-PASSWORD

3. Select SAVE, and then press ENTER. The instrument will display the following

message:

SAVE CAL

Press ENTER to continue; EXIT to abort calibration sequence.

4. Press ENTER. The unit will prompt you for the calibration date:

CAL DATE: 4/15/96

Use , , ▲, ▼, ENTER, or EXIT.

5. Change the displayed date to today's date, and then press the ENTER key. Press

ENTER again to confirm the date.

6. The unit will then prompt for the calibration due date:

NEXT CAL: 4/15/97

Use , , ▲, ▼, ENTER, or EXIT.

7. Set the calibration due date to the desired value, and then press ENTER. Press ENTER

again to confirm the date.

8. Once the calibration dates are entered, calibration is complete and the following message

will be displayed:

CALIBRATION COMPLETE

Press ENTER to confirm; EXIT to abort

9. Press ENTER to save the calibration data (or press EXIT to abort without saving

calibration data). The following message will be displayed:

CALIBRATION SUCCESS

Press ENTER or EXIT to continue.

10. Press ENTER or EXIT to complete process.

Step 5: Lock out calibration

1. From normal display, press MENU.

2. Select CAL, and then press ENTER. The Model 2410 will display the following:

CALIBRATION

UNLOCK EXECUTE VIEW-DATES

SAVE LOCK CHANGE-PASSWORD

3. Select LOCK, and

then press ENTER. The instrument will display the following

message:

CALIBRATION LOCKED.

Press ENTER or EXIT to continue.

4. Press ENTER or EXIT to return to normal display.

2-16 Calibration

Remote calibration

Use the followin the IEEE-488 bus or RS-232 port. The remote commands and appropriate parameters are separately summarized for each step.

g procedure to perform remote calibration by sending SCPI commands over

Remote calibration commands

Table 2-5 summarizes remote calibration commands. For a more complete description of these commands, refer to Appendix B.

Table 2-5

Remote calibration command summary

Command Description

:CALibration

:PROTected

:CODE '<password>'

:COUNT? :SAVE :LOCK :LOCK? :DATE <y>,<m>,<d> :DATE? :NDUE <y>,<m>,<d> :NDUE? :SENSe <nrf>

:DATA?

:SOURce <nrf>

:DATA?

*Calibration data will not be saved if:

1. Calibration was not unlocked with :CODE command.

2. Invalid data exists. (For example, cal step failed or was aborted.)

3. Incomplete number of cal steps were performed. (For example, omitting a negative full-scale step.) Ranges that successfully calibrated will be saved if calibration is unlocked. Ranges that failed will not be

ved.

Calibration subsystem. Cal commands protected by password. Unlock cal; changes password if cal is already unlocked.

(Default password: KI002410.) Query number of times 2410 has been calibrated. Save calibration data to EEPROM.* Lock calibration, inhibit SAVE command operation. Request cal lock status. Program calibration year, month, day. Query calibration year, month, day. Program calibration due year, month, day. Query calibration due year, month, day. Calibrate active measure range. (See Table 2-6 parameters.) Query measurement cal constants for active range. Calibrate active source range. (See Table 2-7 parameters.) Query source cal constants for active range.

Recommended calibration parameters

Calibration 2-17

The maximum calibration

command parameter ranges are: 75% to 150% of full scale for positive and negative full scale calibration points; ± zero calibration steps have ±50% of full scale for valid entry ranges. However, for optim

um calibration, use calibration points within the ranges listed in Table

2-6 and Table 2-7. Note that each sense range requires three parameters: zero, negative full scale, and positive full scale. Similarly, each source range requires four parameters: two zero parameters, a positive full-scale parameter, and a negative full-scale parameter.

Table 2-6

Recommended :CALibration:PROTected:SENSe parameter ranges

nge

0.2V 2V

20V

1µA

1mA

First pa

rameter

(zero)

-0.002 to +0.002

-0.02 to +0.02

-0.2 to +0.2

-2 to +2

-1E-8 to +1E-8

-1E-7 to +1E-7

-1E-6 to +1E-6

-1E-5 to +1E-5

-1E-4 to +1E-4

-1E-3 to +1E-3

-1E-2 to +1E-2

Second parameter (negative full scale)

-0.18 to -0.22

-1.8 to -2.2

-18 to -22

-800 to -1100

-0.9E-6 to -1.1E-6

-9E-6 to -11E-6

-90E-6 to -110E-6

-0.9E-3 to -1.1E-3

-18E-3 to -22E-3

-90E-3 to -110E-3

-0.9 to -1.1

Third parameter (positive full scale)

+0.18 to +0.22 +1.8 to +2.2 +18 to +22 +800 to +1100

+0.9E-6 to +1.1E-6 +9E-6 to +11E-6 +90E-6 to +110E-6 +0.9E-3 to +1.1E-3 +18E-3 to +22E-3 +90E-3 to +110E-3 +0.9 to +1.1

Sense ra

1000V

10µA

100µA

20mA

100mA

Note: Parameter steps for each range may be performed in any order, but all three parameter steps for each range must be completed. For optimum calibration, use parameters within recommended limits.

2-18 Calibration

Table 2

-7

Recommended :CALibration:PROTected:SOURce parameter ranges

Source range

0.2V 2V

20V

1000V

1µA

10µA

100µA

1mA

20mA

100mA

Note: Parameter steps for each range may be performed in any order, but all four parameter steps for each range must be completed. For optimum calibration, use parameters within recommended limits.

t parameter

Firs (negative full scale)

-0.18 to -0.22

-1.8 to -2.2

-18 to -22

-800 to -1200

-0.9E-6 to -1.1E-6

-9E-6 to -11E-6

-90E-6 to -110E-6

-0.9E-3 to -1.1E-3

-18E-3 to -22E-3

-90E-3 to -110E-3

-0.9 to -1.1

Second parameter (negative zero)

-0.002 to +0.002

-0.02 to +0.02

-0.2 to +0.2

-2 to +2

-1E-8 to +1E-8

-1E-7 to +1E-7

-1E-6 to +1E-6

-1E-5 to +1E-5

-1E-4 to +1E-4

-1E-3 to +1E-3

-1E-2 to +1E-2

Third parameter (positive full scale)

+0.18 to +0.22 +1.8 to +2.2 +18 to +22 +800 to +1200

+0.9E-6 to +1.1E-6 +9E-6 to +11E-6 +90E-6 to +110E-6 +0.9E-3 to +1.1E-3 +18E-3 to +22E-3 +90E-3 to +110E-3 +0.9 to +1.1

Fourth parameter (positive zero)

-0.002 to +0.002

-0.02 to +0.02

-0.2 to +0.2

-2 to +2

-1E-8 to +1E-8

-1E-7 to +1E-7

-1E-6 to +1E-6

-1E-5 to +1E-5

-1E-4 to +1E-4

-1E-3 to +1E-3

-1E-2 to +1E-2

Remote calibration procedure

Step 1: Prepare the Model 2410 for calibration

1. Connect the Model 2410 to the

shielded interface cable.

2. Turn on the Model 2410 and the test equipment, and allow them to warm up for at least

one hour before performing calibration.

3. If you are using the IEEE-488 interface, make sure the primary address of the Model

2410 is the same as the address specified in the program you will be using to send commands. (Use the MENU key and the COMMUNICATION menu to access the IEEE-488 address.)

controller IEEE-488 interface or RS-232 port using a

Calibration 2-19

Step 2: Voltage calibration

1. Connect the Model 2410 to the digital multimeter (see Figure 2-1), and select the

multimeter DC volts function.

2. Send the commands summarized in Table 2-8

calibration. (When the :CAL:PROT:CODE command is sent, the instrument will assume the operating states listed in Table 2-2.)

3. Perform the range calibration steps listed in Table 2-9 for each range. For each range:

• Send the :SOUR:VOLT:RANG command to select the source and sense range being

calibrated.. For example, for the 2V range, send the following command:

:SOUR:VOLT:RANG 2

• Program the source to output the negative full-range value using the :SOUR:VOLT

command. For example:

:SOUR:VOLT -2

NOTE Se

NOTE Set t

t the source to -975 for the 1000V range.

• Note

and record the multimeter reading.

• Use the multimeter reading as the parameter for the :CAL:PROT:SOUR and :CAL:PROT:SENS commands. For example, a typical value for the 2V range would be:

:CAL:PROT:SOUR -1.998 :CAL:PROT:SENS -1.998

• Program the voltage source for 0V output using the :SOUR:VOLT 0.0 command.

• Note the multimeter reading.

• Send the source and sense calibration commands using the multimeter reading for the p

ter. For example:

arame

:CAL:PROT:SOUR 1E-3 :CAL:PROT:SENS 1E-3

• Set the source to the positive full-range value using the :SOUR:VOLT command. For exam

ple:

:SOUR:VOLT 2

he source to 975 for the 1000V range.

in the order listed to initialize voltage

• Note an

• Send the source and sense commands using the multimeter reading as the parameter.

• Send the SOUR:VOLT 0.0 command to set the source voltage to 0V.

• Note and record the multimeter reading.

• Send the :CAL:PROT:SOUR command using the multimeter reading as the

d record the multimeter reading.

For example:

:CAL:PROT:SOUR 1.997 :CAL:PROT:SENS 1.997

command parameter. For example:

:CAL:PROT:SOUR -1.02E-3

2-20 Calibration

Table 2-8

Voltage calibration initialization commands

Command Description

*RST :SOUR:FUNC VOLT :SENS:CURR:PROT 0.01 :SENS:CURR:RANG 0.01 :SOUR:VOLT:PROT MAX :SYST:RSEN OFF :CAL:PROT:CODE 'KI002410' :OUTP:STAT ON

*Remote sensing may be used if desired but is not essential when using recommended digital

multimeter. To use remote sensing, send :SYST:RSEN ON.

Restore GPIB defaults. Activate voltage source. Current limit when voltage source is active. Make sure 100mA range is not active. Maximum allowable source voltage. Disable remote sensing.* Unlock cal. Turn source on.

Table 2-9

ltage range calibration commands

Step Command/procedure* Description

:SOUR:VOLT:RANGE <Range>

:SOUR:VOLT -<Source_value>

Take DMM reading.

:CAL:PROT:SOUR

DMM_Reading>

Check 2410 for errors.

:CAL:PROT:SENS <DMM_Reading>

Check 2410 for errors.

:SOUR:VOLT 0.0

Take DMM reading.

:CAL:PROT:SOUR

DMM_Reading>

Check 2410 for errors.

CAL:PROT:SENS <DMM_Reading>

Check 2410 for errors.

:SOUR:VOLT +<Source_value>

Take DMM reading.

:CAL:PROT:SOUR

DMM_Reading>

Check 2410 for errors.

:CAL:PROT:SENS <DMM_Reading>

Check 2410 for errors. :SOUR:VOLT 0.0

Select source range. Establish negative full-range polarity. Read actual output value. Calibrate sense function negative full scale.

Calibrate source function negative full scale.

Set output to 0V. Read actual output value. Calibrate sense function negative zero.

Calibration source function negative zero.

Establish positive full-range polarity. Read actual output value. Calibrate sense function positive full scale.

Calibrate source function positive full scale.

Set output to 0V. Read actual output value.

Calibrate source positive zero. Take DMM reading. :CAL:PROT:SOUR <

DMM_Reading>

*1. Perform complete procedure for each range, where <Range> = 0.2, 2, 20, and 1000, and <Source_value>

= 0.2, 2, 20, and 975.

2. <DMM_Reading> parameter is the multimeter reading from previous step.

3. Use :SYST:ERR? query to check for errors.

Calibration 2-21

Step 3: Current calibration

1. Connect the Model 2410 to the digital multimeter (see Figure 2-2), and select the

multimeter DC current fun

2. Send the commands summarized in Table 2-10 in the order listed to initialize current

calibration.

3. Calibrate each current range using the procedure summarized in Table 2-11. For each

range:

• Send the :SOUR:CURR:RANG command to select the source and sense range being

calibrated. For example, for the 1mA range, the command is:

:SOUR:CURR:RANG 1E-3

• Program the source to output the negative full-range value using the :SOUR:CURR

command. For example:

:SOUR:CURR -1E-3

• Note and record the multimeter reading.

• Use the multimeter reading as the parameter for the :CAL:PROT:SOUR and

:CAL:PROT:SENS commands. For example, a typical value for the 1mA range would be:

:CAL:PROT:SOUR -1.025E-3 :CAL:PROT:SENS -1.025E-3

• Program the current source for 0A output using the :SOUR:CURR 0.0 command.

• Note the multimeter reading.

• Send the source and sense calibration commands using the multimeter reading for the parameter. For example:

:CAL:PROT:SOUR 1E-6 :CAL:PROT:SENS 1E-6

• Set the source to the positive full-range value using the :SOUR:CURR command. For example, for the 1mA range:

:SOUR:CURR 1E-3

• Note and record the multimeter reading.

• Send the source and sense commands using the multimeter reading as the parameter. For example:

:CAL:PROT:SOUR 1.03E-3 :CAL:PROT:SENS 1.03E-3

• Send the :SOUR:CURR 0.0 command to set the source current to 0A.

• Note and record the multimeter reading.

• Send the :CAL:PROT:SOUR command using the multimeter reading as the command parameter. For example:

:CAL:PROT:SOUR -1E-6

ction.

2-22 Calibration

Table 2-10

Current calibration initialization commands

Command Description

:SOUR:FUNC CURR :SENS:VOLT:PROT 20 :SENS:VOLT:RANG 20 :OUTP:STAT ON

Select source current mode. Voltage limit when current source is active. Make sure 1000V range is not active. Turn source on.

Table 2-11

Current range calibration commands

Step Command/procedure* Description

:SOUR:CURR:RANGE <Range>

:SOUR:CURR -<Source_value>

Take DMM reading.

:CAL:PROT:SOUR <DMM_Reading>

Check 2410 for errors.

:CAL:PROT:SENS <DMM_Reading>

Check 2410 for errors.

:SOUR:CURR 0.0

Take DMM reading.

:CAL:PROT:SOUR <DMM_Reading>

Check 2410 for errors.

:CAL:PROT:SENS <DMM_Reading>

Check 2410 for errors.

:SOUR:CURR +<Source_value>

Take DMM reading.

:CAL:PROT:SOUR <DMM_Reading>

Check 2410 for errors.

:CAL:PROT:SENS <DMM_Reading>

Check 2410 for errors.

:SOUR:CURR 0.0

Take DMM reading.

:CAL:PROT:SOUR <DMM_Reading>

*1. Perform complete procedure for each range, where <Range> and <Source_value> = 1E-6, 10E-6, 100E-6,

1E-3, 20E-3, 100E-3, or 1.

2. <DMM_Reading> parameter is the multimeter reading from the previous step.

3. Use :SYST:ERR? query to check for errors.

Select source range. Establish negative full-range polarity. Read actual output value. Calibrate sense function negative full scale.

Calibrate source function negative full scale.

Set output to 0A. Read actual output value. Calibrate sense function negative zero.

Calibration source function negative zero.

Establish positive full-range polarity. Read actual output value. Calibrate sense function positive full scale.

Calibrate source function positive full scale.

Set output to 0A. Read actual output value. Calibrate source positive zero.

Calibration 2-23

Step 4: Program calibration dates

Use following commands to set the calibration date and calibration due date:

:CAL:PROT:DATE <year>, <month>, <day> (Calibration date) :CAL:PROT:NDUE <year>, <month>, <day> (Next calibration due date)

Note that the year, month, and day must be separated by commas. The allowable range for

the year is from 1996 to 2095, the month is from 1 to 12, and the day is from 1 to 31.

Step 5: Save calibration constants

Calibration is now complete, so you can store the calibration constants in EEROM by sending

the following command:

:CAL:PROT:SAVE

NOTE Calibration will be temporary unless you send the SAVE command. Also, calibration

ata will not be saved if (1) calibration is locked, (2) invalid data exists, or (3) all

steps were not completed.

Step 6: Lock out calibration

To lock out further calibration, send the following command after completing the calibration

procedure:

:CAL:PROT:LOCK

2-24 Calibration

Single-range calibration

Normally, the complete calibration instrument is properly calibrated. In some instances, however, you may want to calibrate only certain ranges. To do so, complete the entire procedure only for the ranges to be calibrated. Keep in mind, however, that you must complete all parameter steps for each source or sense range. Also be sure to set calibration dates and save calibration after calibrating the desired ranges.

procedure should be performed to ensure that the entire

Routine

Maintenance

3-2 Routine Maintenance

Introduction

The informatio performed by the operator.

n in this section deals with routine type maintenance that can be

Line fuse replacement

WARNING Disconnect the line cord at the rear panel, connected to the instrument (front and rear) before replacing the line fuse.

The power line fuse is accessible from the rear panel, just above the AC power receptacle (see Figure 3-1).

Perf

orm the following steps to replace the line fuse:

1. Carefully grasp and squeeze together the locking tabs that secure the fuse carrier to th holder.

fuse

2. Pull out the fuse carrier, and replace the fuse with the type specified in Table 3-1.

CAUTION

3. Re-in

NOTE If the power line fuse continues to blow, a circuit malfunction exists and must be

corrected. Refer to the troubleshooting section of this manual for additional information.

To prevent instrument damage,

stall the fuse carrier.

and remove all test leads

use only the fuse type specified in Table 3-1.

ble 3-1

Power line fuse

Line voltage Rating

240V 250V, 2.5A, slow blow 5 ×

100-

20mm

Keithley part no

-106-2.5

WARNING:NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.

CAUTION:FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.

WARNING: NO INTERNAL OPERATOR SERVICABLE PARTS, SERVICE BY QUALIFIED PERSONNEL ONLY.

CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE FUSE WITH SAME TYPE AND RATING.

Routine Maintenance 3-3

Figure 3-1

Rear panel

250V PEAK

4-WIRE SENSE

WITH FRONT PANEL MENU)

250V

PEAK

4-WIRE SENSE

INPUT/

OUTPUT

(ENTER IEEE ADDRESS

WITH FRONT PANEL MENU)

IEEE-488

(ENTER IEEE ADDRESS

5V PK

250V

PEAK

IEEE-488

INPUT/

OUTPUT

250V

PEAK

5V PK

V, Ω,

GUARD

V, Ω,

GUARD

250V

PEAK

GUARD SENSE

GUARD

SENSE

250V

PEAK

CAT I

RS232

RS-232

MADE IN

U.S.A.

TRIGGER

LINK

MADE IN

U.S.A.

LINE FUSE

SLOWBLOW

LINE FUSE

1A, 250V

SLOWBLOW

LINE RATING

2.5A, 250V

85-264VAC 50, 60, HZ

LINE RATING

70VA MAX

100-240VAC

50, 60, Hz

190VA MAX.

FUSE DRAWER

CUS

LISTED

SourceMeter

4ZA4

INTERLOCK-

DIGITAL I/O

OUTPUT ENABLE

Fuse

Troubleshooting

4-2 Troubleshooting

Introduction

This section of the manual will assist you in troubleshooting and repairing the Model 2410. Included are self-tests, test procedures, troubleshooting tables, and circuit descriptions. Note that disassembly instructions are located in Section 5, and component layout drawings are found at the end of Section 6.

WARNING The info

only. Do not perform these procedures unless you are qualified to do so. Some of these procedures may expose you to hazardous voltages that could cause personal injury or death. Use caution when working with hazardous voltages.

Repair considerations

Before making any repairs to the Model 2410, be sure to read the following considerations.

CAUTION

• Repairs will require variou the Front Panel Tests be performed prior to any disassembly. The disassembly instructions for the Model 2410 are contained in Section 5 of this manual.

• Do not make repairs to surface mount PC boards unless equipped and qualified to do so (see previous CAUTION).

• When working inside the unit and replacing parts, be sure to adhere to the handling pre-cautions and cleaning procedures explained in Section 5.

• Many CMOS devices are installed in the Model 2410. These static-sensitive devices require special handling as explained in Section 5.

• When a circuit board is removed or a component is replaced, the Model 2410 must be recalibrated. See Section 2 for details on calibrating the unit.

The PC boards are built using surface mount techniques and require specialized equipment and skills for repair. If you are not equipped and/ or

qualified, it is strongly recommended that you send the unit back to the factory for repairs or limit repairs to the PC board replacement level. Without proper equipment and training, you could damage a PC board beyond repair.

rmation in this section is intended for qualified service personnel

s degrees of disassembly. However, it is recommended that

Power-on self-test

During the power-on sequence, the Model 2410 will perform a checksum test on its EPROM

and test its RAM. If one of these tests fail, the instrument will lock up.

Front panel tests

Troubleshooting 4-3

There are three front p to test the display. In the event of a test failure, refer to Display board checks for details on troubleshooting the display board.

KEYS test

The KEYS test lets you check the functionality of each front panel key. Perform the following steps to run the KEYS test.

. Display the MAIN MENU by pressing the MENU key.

2. Select TEST, and press ENTER to display the SELF-TEST MENU.

3. Select DISPLAY-TESTS, and press ENTER to display the following menu:

FRONT PANEL TESTS

KEYS DISPLAY-PATTERNS CHAR-SET

4. Select KEYS, and press ENTER to start the test. When a key is pressed, the label name

for that key will be displayed to indicate that it is functioning properly. When the key is released, the “No keys pressed” message is displayed.

5. Pressing EXIT tests the EXIT key. However, the second consecutive press of EXIT

aborts the test and returns the instrument to the FRONT PANEL TESTS MENU. Continue pressing EXIT to back out of the menu structure.

DISPLAY PATTERNS test

The display patterns test lets you verify that each pixel and annunciator in the vacuum fluorescent display is working properly. Perform the following steps to run the display patterns test:

anel tests: one to test the functionality of the front panel keys and two

1. Display the MAIN MENU by pressing the MENU key.

2. Select TEST,

3. Select DISPLAY-TESTS, and press ENTER to display the following menu:

FRONT PANEL TESTS

KEYS DISPLAY-PATTERNS CHAR-SET

4. Select DISPLAY-PATTERNS, and press ENTER to start the display test. There are five parts to the display test. Each time a front panel key (except EXIT) is pressed, the next part of the test sequence is selected. The five parts of the test sequence are:

• Checkerboard pattern (alternate pixels on) and all annunciators.

• Checkerboard pattern and the annunciators that are on during normal operation.

• Horizontal lines (pixels) of the first digit are sequenced.

• Vertical lines (pixels) of the first digit are sequenced.

• Each digit (and adjacent annunciator) is sequenced. All the pixels of the selected digit

are on.

When finished, abort the display test by pressing EXIT. The instrument returns to the FRONT PANEL TESTS MENU. Continue pressing EXIT to back out of the menu structure.

and press ENTER to display the SELF-TEST MENU.

4-4 Troubleshooting

CHAR SET test

The character set test lets you display all characters. Perform the following steps to run the

character set test:

1. Display the MAIN MENU by pressing the MENU key.

2. Select TE

3. Select DISPLAY-TESTS, and press ENTER to display the following menu:

4. Select CHAR-SET, and press ENTER to start the character set test. Press any key except

ST, and press ENTER to display the SELF-TEST MENU.

FRONT PANEL TESTS

KEYS DISPLAY-PATTERNS CHAR-SET

EXIT to cycle through all displayable characters. When finished, abort the character set test by pressing EXIT. The instrument returns to the FRONT PANEL TESTS MENU. Continue pressing EXIT to back out of the menu structure.

Principles of operation

The following information is provided to support the troubleshooting tests and procedures

covered in this section of the manual. Refer to the following drawings:

Figure 4-1 — Overall block diagram

Figure 4-2 — Analog circuitry block diagram

Figure 4-3 — Power supply block diagram

Figure 4-4 — Output stage simplified schematic

Figure 4-5 — Digital circuitry block diagram

Overall block diagram

Figure 4-1 shows an overall block diagram of the Model 2410. Circuitry is divided into three

general areas:

Troubleshooting 4-5

Figure 4-1

Overall block diagram

Display,

Keyboard

Digital

I/O

• Analog circuits —

includes circuits such as the DACs, clamps, output stage, and

feedback circuits, as well as measurement circuits such as the A/D converter.

• Digital circuits — includes the microcomputer that controls the analog section, front

panel, and the GPIB and RS-232 ports, as well as associated interfacing circuits.

• Power supplies — converts the AC line voltage into DC voltages that supply the power

for the digital and analog circuits, and the output stage.

Analog Section

Output

Stage

RS-232

GPIB

Interface

Guard

Buffer

Output

Guard

RS-232 I/O

GPIB I/O

To Analog

CircuitsToOutput Stage

±15V

±70V

Analog Power Supply

+5V ±42V

Digital Circuits

±1200V +5V +12V

Output

Stage

Power

Supply

Line In

Power Supply

Digital Power Supply

Front Panel

Controller

Trigger, Digital

I/O

DACs

Clamps

Feedback

A/D

Converter

Microcomputer

Digital Section

4-6 Troubleshooting

Analog circuits

Figure 4-2 shows the analog circuitry block.

D/A converters control the programmed voltage and current, or voltage compliance and current compliance. Each DAC has two ranges, a 10V full-scale output or a 1V full-scale output. The DAC ability to control the main loop. If the unit is set for SV (source voltage), it will source voltage until the compliance current is reached (as determined by the I DAC setting), and the current loop will override the voltage loop. If, however, the unit is set for SI (source current), it will source current until the compliance voltage is reached (as determined by the V DAC setting), and the voltage loop will override the current loop. A priority bit in the V clamp/I clamp circuit controls these functions.

The error amplifier adds open-loop gain and slew-rate control to the system to assure accuracy and provide a controllable signal for the output stage, which provides the necessary voltage an

current gain to drive the output. Sense resistors in the HI output lead provide output current sensing, and a separate sense resistor is used for each current range. The 1A range uses 0.2V full-scale for a full-range 1A output, while all other ranges use 2V output for full-scale current. Voltage feedback is routed either internally or externally.

There are four voltage ranges: 0.2V, 2V, 20V, and 1000V. The feedback gain changes for only the 20V and 1000V ranges, resulting in three unique feedback gain values. A multiplexer directs the voltage feedback, current feedback, reference, or ground signal to the A/D converter. An opto-isolated interface provides control signals for both DACs, analog circuit control, and A/D converter communication to the digital section.

outputs are fed to the summing node, FB. Either the V DAC or the I DAC has the

Troubleshooting 4-7

Figure 4-2

Analog circuitry block diagram

V DAC

I DAC

Control

VFB

A/D

IFB

V Clamp

I Clamp

MUX

Output

Stage

Remote

+42

+1200

Sense

Resistors

Protection

Output

S+

Output

S-

Guard

Out

Guard

Sense

-42

-1200

Error Amp

VFB

IFB

4-8 Troubleshooting

Power supply

Figure 4-3

Power supply block diagram

Figure 4-3

shows a block diagram of the Model 2410 power delivery system.

The offline flyback switching power supply provides all power for the instrument while providing universal inputs for the 110/120V line. The digital board runs directly from the switcher, including the +12VD supply to program the flash ROM.

A constant-frequency switching supply runs off the +12VD supplies and generates all the floating supply voltages for the analog board: +5V, ±15V, and ±70VF. An AC output (low voltage) supplies the analog board with the power it uses to derive the output stage supply voltages, ±42V and ±1200V.

Analog Board

+70V +15V +5V

FFF FF

-15V -70V

Output Stage

-1200V -42V +42V +1200V

High Voltage

Power

Constant Frequency Low Noise Floating Switching Supply

AC1

AC2

Line Neutral

Switching Power

Supply

Digital Circuits

+12Vd

+5Vd

+12Vd

Output stage

Figure

The Model 2410 output stage serves two purposes: (1) it converts signals from floating common to output common, and (2) it provides both voltage and current amplification. The output stage drive transistors are biased in class B configuration to prevent the possibility of thermal runaway with high-current output values. High-current taps for the ±20V outputs are provided to reduce power dissipation on the 20V and lower ranges.

Output transistors Q518 and Q521 are cascoded with output MOSFETs Q516 and Q523. All o

her MOSFETs and transistors are slaves, and the voltages across these devices are determined by the resistor-capacitor ladder circuits shown. Coarse current limits are built into the output stage.

Troubleshooting 4-9

4-4 shows a simplified schematic of the output stage.

Figure 4-4

Output stage simplified schematic

Maindrive

+Hi Drive

+15VF

300K

-30VF

-Hi Drive

+1200V

Q500

Q502

Q505

Q506

Q504

+42V

Q514

Q516

Q518

Q521

Q523

Q525

-42V

Q507

Q509

Q533

Q511

-1200V

4-10 Troubleshooting

A/D converter

The SourceMeter unit uses a multi-slope charge balance A/D converter with a single-slope charge balance run-down. The converter is controlled by gate array U610. Commands are issued by the MPU on the digital board through communications opto-isolators to U610, and U610 sends A/D reading data back through opto-isolators to the digital board for calibration and processing.

Active guard

The Model 2410 has an active guard or "six-wire ohms" circuit used to measure complex devices. This circuitry provides a low-current (50mA) equivalent of the voltage on output HI. If the unit is in the SV mode, th guard terminal. If the unit is in the SI mode, the voltage on output HI is equal to the source current multiplied by the external resistance value. An equivalent voltage will be generated by the guard circuit, and a guard sense terminal is provided to sense around the voltage drop in the guard leads since significant current can flow (50mA).

e low-current equivalent of the source voltage will appear on the

Digital circuitry

Troubleshooting 4-11

Figure 4-5

Digital circuitry block diagram

Refer to

Figure 4-5 for the following discussion on digital circuitry.

The core digital circuitry uses a Motorola 68332 microcontroller running at 16.78MHz. The

emory configuration includes two 256K X 8-bit EEPROMs and two 128K X 8-bit RAMs used in parallel to utilize the 16-bit data bus of the MPU. The RAM is battery backed-up, providing continued storage of data buffer information during power-down cycles, and flash ROM support allows internal firmware upgrades using either the serial or GPIB port for downloading new firmware. All calibration constants and save setup o are stored in a separate serial EEPROM. Setups 1 through 4 are stored in battery backed up RAM.

External communication is provided via GPIB and serial interfaces. A 9914 GPIA IEEE-488 standard interface IC is used for the GPIB, and a 68332 Queued Serial Module (QSM) provides the serial UART. For internal communications, the Time Processing Unit (TPU) is used for serial communications with the front panel display module, and both the TPU and QSM handle d

igital-to-analog interfacing.

A/D

Control/Data

Reset

E PROM

U17

A/D Interface

U9, U25

Voltage Source

Control

ROM

U15, U16

Microprocessor

RAM

U12, U14

16.78MHz

Serial

Interface

GPIB

U6, U13

U20

Trigger

U23

RS-232 Interface

IEEE-488 Interface

To Display

Board Controller

Trigger

Digital I/O

Digital

I/O

4-12 Troubleshooting

Display board

U902 is the display microco and interprets key data. The microcontroller has four peripheral I/O ports that are used for the various control and read functions.

Display data is serially transmitted to the microcontroller from the digital board via the TXB line to the microcontroller PD0 terminal. In a similar manner, key data is serially sent back to the digital board through the RXB line via PD1. The 4MHz clock for the microcontroller is generated on the display board.

DS901 is the VFD (vacuum fluorescent display) module, which can display up to 49 characters. Each character is organized as a 5 × 7 matrix of dots or pixels and includes a long underbar segment to act as a cursor.

The display uses a common multiplexing scheme with each character refreshed in sequence. U90

3 and U904 are the grid drivers, and U901 and U905 are the dot drivers. Note that dot driver

and grid driver data is serially transmitted from the microcontroller (PD3 and PC1).

The VFD requires both +60VDC and 5VAC for the filaments. These VFD voltages are supplied by U625, which is located on the digital board.

The front panel keys (S901-S931) are organized into a row-column matrix to minimize the number of microcontroller peripheral lines required to read the keyboard. A key is read by strobing the columns and reading all rows for each strobed column. Key down data is interpreted by the display microcontroller and sent back to the main microprocessor using proprietary encoding schemes.

ntroller that controls the VFD (vacuum fluorescent display)

Troubleshooting

ubleshooting information for the various circuits is summarized below. See the

Tro

component layout drawings at the end of Section 6 for test point locations.

Display board checks

If the front panel display tests indicate that there is a problem on the display board, use Table

4-1. See principles of operation for display circuit theory.

Table 4-1

Display board checks

Step Item/component Required condition Remarks

Troubleshooting 4-13

Front panel test

P1005, pin 5

P1005, pin 9

U902, pin 1

U902, pin 43

U902, pin 32

U902, pin 33

Verify that all segments operate. +5V ±5% +37V ±5% Goes low briefly on power up then goe 4MHz square wave. Pulse train every 1ms. Brief pulse train when fron panel

s high.

key is pressed.

Use front panel display test. Digital +5V supply. Display +37V supply. Microcontroller RESET.

Controller 4MHz clock. Control from main processor. Key down data sent to main p

rocessor.

4-14 Troubleshooting

Power supply checks

Power supply problems can be checked out using Table 4-2. See principles of operation for circuit theory on the power supply.

Table 4-2

Power supply checks

Step Item/component Required condition Remarks

Line fuse

Line power

CR500 cathode

CR503 anode

CR504 cathode

CR505 anode

TP506

TP507

TP508

TP509

TP510

Check continuity. Plugged into live receptacle, power on. +1200V ±10%

-1200V ±10% +4

2V ±10%

-42V ±10% +70

V ±10%

+15V ±5%

-15V ±10%

-70V ±10% +5V ±5%

Remove to check. Check for correct power-up seq Referenced to TP501. Referenced to TP501. Referenced to TP501. Referenced to TP501. +70VF, referenced to TP500. +15VF, referenced to TP500.

-15VF, referenced to TP500.

-70VF, referenced to TP500. +5VF, referenced to TP500.

uenc

Digital circuitry checks

Digital circuit problems can be checked out using Table 4-3. See principles of operation for

a digital circuit description.

Table 4-3

Digital circuitry checks

Step Item/component Required condition Remarks

Troubleshooting 4-15

Power-on test

U3, pin 19, TP3

U3, pin 7, TP1

U3, pin 68, TP10

U3, lines A0-A19

U3, lines D0-D15

U3, pin 66, W23

U4, pin 7

U4, pin 8

U13, pins 34-42

U13, pins 26-31

U13, pin 24

U13, pin 25

U3, pin 43

U3, pin 44

U3, pin 45

U3, pin 47

RAM OK, ROM OK.

Digital common.

+5V Low on power-up, then goes hi

gh.

heck for stuck bits.

Check for stuck bits.

16.78MHz. Pulse train during RS-232 I/O. Pulse train during RS-232 I/O. Pulse train during IEEE-488 I/O. Pulses during IEEE-488 I/O. Low with remote enabled. Low during interface clear. Pulse train. Pulse train. Pulse train. Pulse train.

Verify that RAM and ROM are f

ctional.

All signals referenced to digital

commo Digital logic supply. MPU RESET line.

MPU address bus. MPU data bus. MPU clock. RS-232 RX line. RS-232 TX line. IEEE-488 data bus. IEEE-488 command lines. IEEE-488 REN line. IEEE-488 IFC line. D_ADDATA D_DATA D_CLK D_STB

4-16 Troubleshooting

Analog circuitry checks

Table 4-4 summarizes analog circuitry checks.

Table 4-4

Analog circuitry checks

Item/

Step

mponent Required co

ndition Remarks

TP200

TP201

TP202

TP203

TP213

TP218

6**

TP219

7**

TP214

8**

TP232

** Measured with respect to FCOM (TP500).

** Measured with respect to OCOM (TP501).

>1100V voltage protection SOURCE +10V SOURCE +10V (SVMI) SOURCE +10V SOURCE +10V OUTPUT COM OUTPUT COM SVMI, OUTPUT ON, 20V Bench defaults

-13V ±1V

-5V ±.5V

-10V ±1V

-10.5V ±1V 0V ±.1V 7V ±.7V 7V ±.7V 20V ±.5V

6.4V ±.6V

Battery replacement

Troubleshooting 4-17

WARNING Disconnect the instrument from the power line and all

before changing the battery.

The volatile memories of the Model 2410 are protected by a replaceable battery when power is off. Typical life for the battery is approximately ten years, but the battery should be replaced if the voltage drops below 2.5V regardless of age. The battery should be suspected if the instrument no longer retains buffer data or user-defined operating parameters, such as instrument set-ups, source memory, and math expressions. If the battery is absent or totally exhausted, the display will show the “Reading buffer data lost” message shortly after the Model 2410 is switched on.

The battery is a 3V wafer-type lithium cell (Panasonic BR-2330-1VC), which is located on the digital board. Replacement of the battery requires removal of the case cover and analog board assembly. (See Section 5.) Use only the recommended battery.

NOTE Calibration constants and user-defined parameters will be lost when the battery is

replaced. The Model 2410 must be re-calibrated (Section 2) after the battery is replaced.

ARNING The

1. Wear safety glasses or goggles when wo

2. Do not short the battery terminals together.

3. Keep lithium batteries away from all liquids.

4. Do not attempt to recharge lithium batteries.

5. Observe proper polarity when installing the battery.

6. Do not incinerate or otherwise expose the battery to excessive heat (>60°C).

7. Bulk quantities of lithium batteries should be disposed of as a hazardous waste.

preca

utions below must be followed to avoid personal injury.

rking with lithium batteries.

other equipment

To replace the battery, carefully unsolder it, and then solder the new one in its place.

Re-assemble the instrument and turn it on. The “Reading buffer data lost” error message will be di

splayed. Send the :SYST:MEM:INIT command to perform the following:

• Clear the reading buffer.

• Initialize instru

• Initialize all 100 source memory locations to the present instrument settings.

• Delete user math expressions.

ment setups 1 to 4 to the present instrument settings.

4-18 Troubleshooting

No comm link error

A “No Comm Link” error indicates that the front panel processor has stopped communicating with the main processor, which is located on the digital board. This error indicates that one of the main processor ROMs may require reseating in its socket. ROMs may be reseated as follows:

1. Turn off the power, and disconnect the line cord and all other test leads and cables fro the instru

2. Remove the case cover as outlined in Section 5.

3. Remove the analog board assembly as outlined in Section 5.

4. Locate the two firmware ROMs, U15 and U16, located on the digital board. These are the on Section 6 for exact locations.)

5. Carefully push down on each ROM IC to make sure it is properly seated in its socket.

CAUTION Be ca

6. Connect the line cord, and turn on th troubleshoo

ment.

ly ICs installed in sockets. (Refer to the component layout drawing at the end of

reful not to push down excessively, or you might crack the digital

board.

e power. If the problem persists, additional

ting will be required.

Disassembly

5-2 Disassembly

Introduction

This section explains how to handle, clean, and disassemble the Model 2410. Disassembly

drawings are located at the end of this section.

Handling and cleaning

To avoid contaminating PC board traces with body oil or other foreign matter, avoid touching the PC board traces while you are repairing the instrument. Motherboard areas covered by the shield have high-impedance devices or sensitive circuitry where contamination could cause degraded performance.

Handling PC boards

Observe the following precautions when handling PC boards:

• Wear cotton gloves.

• Only handle PC boards by the edges and shields.

• Do not touch any board traces or components not associated with repair.

• Do not touch areas adjacent to electrical contacts.

• Use dry nitrogen gas to clean dust off PC boards.

Solder repairs

Observe the following precautions when you must solder a circuit board:

• Use an OA-based (organic activated) flux, and take care not to spread the flux to other areas o

• Remove the flux from the work area when you have finished the repair by using pur water with

• Once you have removed the flux, swab only the repair area with methanol, then blowdr

•

After cleaning, allow the board to dry in a 50°C, low-humidity environment for several ho

the circuit board.

clean

, foam-tipped swabs or a clean, soft brush.

he board with dry nitrogen gas.

y t

urs.

Static sensitive devices

CMOS devices operate at very high impedance levels. Therefore, any static that builds up on you or your clothing may be sufficient to destroy these devices if they are not handled properly. Use the following precautions to avoid damaging them:

Disassembly 5-3

CAUTION M

• Transport and buildup. Typically, you will receive these parts in anti-static containers made of plastic or foam. Keep these devices in their original containers until ready for installation.

• Remove the devices from their protective containers only at a properly grounded work station. Also, ground yourself with a suitable wrist strap.

• Handle the devices only by the body; do not touch the pins.

• Ground any printed circuit board into which a semiconductor device is to be inserted to the bench or table.

• Use only anti-static type desoldering tools.

• Use only grounded-tip solder irons.

• Once the device is installed in the PC board, it is normally adequately protected, and you can handle the boards normally.

CMOS devices are installed in the Model 2410. Handle all semicon-

any

ductor devices as being static sensitive.

handle ICs only in containers specially designed to prevent static

5-4 Disassembly

Assembly drawings

Use the assembly drawings located at the end of this section to assist you as you disassemble and re-assemble the Model 2410. Also, refer to these drawings for information about the Keithley part numbers of most mechanical parts in the unit.

• Front panel assembly — 2410-040

• Analog board/heat sink/shield assembly — 2410-050

• Chassis assembly — 2410-051

• Chassis/analog board assembly — 2410-052

•

Final chassis assembly — 2410-053

Case cover removal

Follow the steps below to remove the case cover to gain access to internal parts.

Disassembly 5-5

WARNING Before

1. Remove handle — The h

gently pulling it away from the sides of the instrument case and swinging it up or down. To remove the handle, swing the handle below the bottom surface of the case and back until the orientation arrows on the handles line up with the orientation arrows on th mounting ears. With the arrows lined up, pull the ends of the handle away from the case.

2. Remove mounting ears — Remo

down and out on each mounting ear.

NOTE When r

side of the chassis and the left ear to the left side of the chassis. Each ear is marked “RIGHT” or “LEFT” on its inside surface.

3. Remove rear bezel — To

rear bezel to the chassis, and then pull the bezel away from the case.

4. Remove grounding screws — Remov

to the chassis. They are located on the bottom of the case at the back.

Remove chassis — To remove the case, grasp the front bezel of the instrument, and carefully slide the chassis forward. Slide the chassis out of the metal case.

removing the case cover, disconnect the line cord and any test leads

from the instrument.

andle serves as an adjustable tiltbail. Adjust its position by

ve the screw that secures each mounting ear. Pull

e-installing the mounting ears, make sure to mount the right ear to the right

emove the rear bezel, loosen the two screws that secure the

e the two grounding screws that secure the case

5-6 Disassembly

Analog board removal

Perform the following steps to remove the analog board. This procedure assumes that the case cover is already removed.

1. Disconnect the front and rear input terminals.

You mu

• INPUT/OUTPUT HI and LO

• 4-WIRE SENSE HI and LO

• V, Ω, GUARD, and GUARD SENSE (rear panel only)

Remov the ferrite n identify input terminals:

st disconnect these input terminal connections for both the front and rear inputs:

e all the connections by pulling the wires off the pin connectors, and then remove

oise filters from the chassis. During reassembly, use the following table to

Terminal Front wire color Rear wire color

INPUT/OUTPUT HI INPUT/OUTPUT LO 4-WIRE SENSE HI 4-WIRE SENSE LO V, Ω

, GUARD

GUARD SENSE

2. Unplug cables.

• Carefully unplug the ribbon cables at J1001, J1002, and J1003.

• Unplug the ON/OFF cable at J1034.

3. Remove screws.

• Remove the two fastening screws that secure the analog board assembly to the chassis. These screws are located on the side of the board opposite from the heat sink.

• Remove the two screws that secure the heat sink to the chassis.

4. Remove analog board assembly.

• After all screws have been removed, carefully lift the analog board assembly free of the main chassis.

5. Disass

CAUTION Be

emble analog board assembly.

• Remove the screws that secure the analog board and heat sink to the analog board subchassis.

• Carefu

lly remove the heat sink by sliding the clips off the power transistors.

caref

Red Black Yellow Gray — —

ul not to damage the heat sink insulation layer.

White/Red White/Black White/Yellow White/Gray White Blue/White

• Remove the analog board from the subchassis.

• Remove the four screws that secure the bottom cover, and then remove the cover from

ttom of the PC board.

the bo

NOTE When re

tered on each pair of output transistors.

-installing the heat sink, make sure all clips are properly installed and cen-

Digital board removal

Perform the following steps to remove the digital board. This procedure assumes that the

analog board assembly is already removed.

1. Remove the IEEE-488, digital I/O, and RS-232 fasteners. The IEEE-488, digital I/O, and RS-232 connectors each have two nuts that secure the con

nectors to the rear panel. Remove these nuts.

2. Remove the POWER switch rod. At the switch, place the edge of a flat-blade screwdriver in the notch on the pushrod. Gent

ly twist the screwdriver while pulling the rod from the shaft.

3. Unplug cables:

• Unplug the display board ribbon cables.

• Unplug the cables going to the power supply.

• Unplug the rear panel power module cable.

4. Remove digital board. Slide the digital board forward until it is free of the guide pins, then remove the board.

During re-assembly, replace the board, and start the IEEE-488, digital I/O, and RS-232 connector nuts and the mounting screw. Tighten all the fasteners once they are all in place and the board is correctly aligned.

Disassembly 5-7

5-8 Disassembly

Front panel disassembly

Use the following steps to remove the display board and/or the pushbutton switch pad.

1. Unplug the display board ribbon cable.

2. Remove the front panel assembly. This assembly has four retaining clips that snap Two retaining clips are located on each side of the front panel. Pull the retaining clips outward and, at the same time, pull the front panel assembly forward until it separates from the chassis.

3. Using a thin-bladed screw driver, pry the plastic PC board stop (located at the bottom of th

e display board) until the bar separates from the casing. Pull the display board from the

front panel.

Remove the switch pad by pulling it from the front panel.

onto the chassis over four pem nut studs.

Removing power components

The following procedures to remove the power supply and/or power module require that the

case cover and motherboard be removed, as previously explained.

Power supply removal

Perform the following steps to remove the power supply:

1. Remove the analog board.

2. Unplug the two cables coming from the digital board.

3. Remove the four screws that secure the po

4. Rem

Power module removal

Perform the following steps to remove the rear panel power module:

1. Remove the analog board.

2. Unplug the cable connecting the power module to the digital board.

3. Disconnect the power module's ground wire. This green and yellow wire connects to

4. Squeeze the latches on either side of the power module while pushing the module from

WARNING To

ove the power supply from the chassis.

eaded stud on the chassis with a kep nut.

thr

the acc

ess hole.

avoid electrical shock, which could result in injury or death, the ground wire of the power module must be connected to chassis ground. When installing the power module, be sure to re-connect the green and yellow ground wire to the threaded stud on the chassis.

Disassembly 5-9

wer supply to the bottom of the chassis.

5-10 Disassembly

Instrument re-assembly

Re-assemble the instrument by reversing the previous disassembly procedures. Make sure

that all parts are properly seated and secured and that all connections are properly made.

WARNING To ensure

line gro connected to the chassis. Also make certain that the two bottom case screws are properly installed to secure and ground the case cover to the chassis.

und (green and yellow wire attached to the power module) is

continued protection against electrical shock, verify that power

Replaceable

Parts

6-2 Replaceable Parts

Introduction

This section contains replacement parts information and component layout drawings for the

Model 2410.

Parts lists

The electrical parts lists for the Model 2410 are shown in tables at the end of this section. For part numbers to the various mechanical parts and assemblies, use the Miscellaneous parts list and the assembly drawings provided at the end of Section 5.

Ordering information

To place an order or to obtain information concerning replacement parts, contact your Keithley representative or the factory (see inside front cover for addresses). When ordering parts, be sure to include the following information:

• Instrument model number (Model 2410)

• Instrument serial number

• Part description

• Component designation (if applicable)

•

Keithley part number

Factory service

If the instrument is to be returned to Keithley Instruments for repair, perform the following:

Replaceable Parts 6-3

• Call the Repair Department at 1-800-833-92

(RMA) number.

• Complete the service form at the back of this manual, and include it with the instrument.

• Carefully pack the instrument in the original packing carton.

• Write ATTENTION REPAIR DEPARTMENT and the RMA number on the shipping

label.

Component layouts

The component layouts for the various circuit boards are provided on the following pages.

• Analog board — 2410-100

• Display board — 2400-110

• Digital board — 2400-140

00 for a Return Material Authorization

6-4 Replaceable Parts

Table 6-1

Analog board parts list

Circuit designation Description Keithley part no.

C200-203, 205-210, 225, 226

, 231, 232, 237, 238 C204, 404, 608 ,609, CAP, .01UF, 10%, 50V CERAMIC C-491-.01 550-553 C211-214 CAP, 1000PF,10%, 50V, MONO CERAMIC C-452-1000P C215-222, 611 CAP,100PF, 5%, 100V, CERAMIC C-465-100P C223, 224, 227-230, CAP, 33PF, 5%, 100V, CERAMIC C-465-33P 233-236, 239, 240, 320 C241 CAP,1000PF,1%,50V,CERAMIC C-347-1000P C242, 243,248, 249, CAP, .1UF, 10%, 25V, CERAMIC C-495-.1 252-255, 258-261, 269-271 C244, 245 CAP, .01UF, 10%, 200V CERAMIC C-472-.01 C247 CAP, .01, 5%, 50V, NPO C-514-.01 C250, 290, 291, 297-300, CAP, .1UF, 10%, 25V, CERAMIC C-495-.1 252-255, 258-261, 269-271 C256, 257, 340, 341 CAP, 22PF, 10%, 100V, CERAMIC C-451-22P C267, 513 CAPACITOR, SMT C-543-560P C273-282, 284-289, CAP, .1UF, 10%, 25V, CERAMIC C-495-.1 305-310, 321, 322, 600-602 C283, 337 CAP, 100P, 10%, 100V CERAMIC C-451-100P C296 CAP,33PF,10%,1000V,CERAMIC C-64-33P C301, 302 CAP, 1000PF,10%, 50V, MONO CERAMIC C-452-1000P C311 CAP, 100UF, 20%, 10V, ALUM ELEC C-483-100 C312-319 CAP,10PF,5%,100V,CERAMIC C-372-10P C323-326, 603, 604, 615 CAP, 47P, 5%, 100V, CERAMIC C-465-47P C329 CAP, 220PF, 10%, 100V, CERAMIC C-451-220P C331-334 CAP,100PF, 5%, 100V, CERAMIC C-465-100P C336 CAP,1000PF,10%,1000V,CERAMIC C-64-1000P C342 CAP, 4.7PF, 5%, 50V, MONO-CERAMIC C-452-4.7P C400 CAP,270PF,2.5%,630V,POLYPROPYLENE C-405-270P C401 CAPACITOR SMT C-544-270P C405, 406 CAP, .15UF,20%,50V, CERAMIC C-418-.15 C407 CAP, 1UF, 20%, 35V, TANTALUM C-494-1 C500, 501 CAPACITOR C-548-.033 C502, 503 CAPACITOR C-549-.047 C504, 505, 534, 535 CAP, 47UF, 20%, 100V ALUM ELEC C-521-47 C512, 514 CAP, 22PF, 10%, 100V, CERAMIC C-451-22P C515, 541 CAP,.1UF, 20%,50V,CERAMIC C-418-.1 C522, 523, 526, 544, CAPACITOR SMT C-542-1000P 527-529, 547, 532, 533 C539, 540 CAP, 1UF, 20%, 50V CERAMIC C-519-1 C545, 546 CAP, .022U, 10%, 2000V C-550-.022 C549, 272 CAP, .1UF, 10%, 25V, CERAMIC C-495-.1

CAP, .1UF, 10%, 25V, CERAMIC C-495-.1

Replaceable Parts 6-5

Table 6-1 (cont.)

og board parts list

Anal

Circuit designation Description Keithley part no.

C605-607, 613, 614, CAP, .1UF, 10%, 25V, CERAMIC C-495-.1 617-625, 650-652, 659, 660 C610, 612 CAP, 2200P, 10%, 100V CERAMIC C-430-2200P C616 CAP, 22UF, 20%, 25V, TANTALUM C-440-22 C661, 662, 524, 554, 555, CAP, .1UF, 10%, 25V, CERAMIC C-495-.1 338, 339, 542, 548 CR200-203, 205, 207, 208, DIODE, SWITCHING, MMBD914 RF-83 210, 216-221, 235 CR206, 209, 230-233, 400, DIODE,IN3595 RF-43 401, 222, 214, 215 CR223 DIODE,IN3595 RF-43 CR224, 225, 504-507 ULTRAFAST POWER RECTIFIER RF-105 CR236, 204, 211, 212, 213, 5

522, 602

13,

DIODE, SWITCHING, MMBD914 RF-83

CR237, 238, 512 DIODE, DUAL SWITCHING, BAV99L RF-82 CR500-503, 523 RECTIFIER RF-116 CR508-511, 520, 521 DIODE,CONTROLLED AVALANCHE, RF-91

BYD17GSOD-87 CR514, 515, 516 RECTIFIER RF-125 CR517, 519 RECTIFIER RF-117 CR600 DIODE, DUAL HSM-2822T31 RF-95 CR601, 524 DIODE, SCHOTTKY, SD103C RF-113 J1001 CONN,HEADER STRAIGHT SOLDER PIN CS-368-10 J1002 CONN, HEADER STRAIGHT SOLDER

CS-368-16

PIN J1003 CONNECTOR, HEADER STRAIGHT

SOLDER PIN CS-368-14 J1034 LATCHING HEADER,FRICTON, SGL

CS-7

24-3

J1035 CONN,BERG CS-339 K200, 201, 202, 203, 204 RELAY SMT K205 N.C RELAY, 1 FORMB, AQV214S RL-176 K206 RELAY, REED, HI-VOLT/ISOLA-

RL-152

TION,848-1 K207, 208 RELAY RL-199 L201 CHOKE, SHIELD BEAD CH-52 L600, 601, 602 FERRITE CHIP 600 OHM BLM32A07 CH-62 L603 FERRITE CHIP 600 OHM BLM32A07 CH-62 Q200-207, 240, 241, 232 TRANS, N CHANNEL JFET, SNJ132199 TG-294 Q208, 210, 212, 214, 216,

Q209, 211, 213, 215, 217,

TRANS,NPN CATV SILI

TRANS,C

URRENT REGULATOR,CR430 TG-219

CON,MPSH17 TG-221

219

6-6 Replaceable Parts

Table 6-1 (cont.)

Ana

log board parts list

Circuit designation Description Keithley part no.

Q220, 225 TRANS,NPN SILICON,MJE340 TG-209 Q221, 226 TRANS,PNP POWER,MJE350 TG-210 Q222, 224 TRANS, N-CHAN JFET, SST4393 TG-263 Q234-239, 244-246, 255, TRANS, N-MOSFET, VN0605T TG-243 256, 400, 401, 404, 229 Q242, 243 TRANS, N-CHAN MOSFET, 2SK1412 TG-276 Q258 TRANSISTOR SMT TG-345 Q259 TRANSISTOR SMT TG-346 Q260 VERTICAL DMOS FET TG-301 Q261 TRANS, N-CHAN MOSFET, TN254ON8 TG-274 Q402, 409 TRANS, N-CHAN DMOS FET TN2504N8 TG-261 Q403, 406, 407, 408 TRANS, N-CHAN JFET, SST109 TG-266 Q405,410,411, 602-605, TRANS, N-MOSFET, VN0605T TG-243 223, 233 Q412, 414 TRANS, N-MEGAFET, RFD 14N05LSM TG-267 Q413 TRANS, P-CHAN, MOSFET, TP0610T TG-259 Q415 TRANS, P-FET, MTP23P06 TG-229 Q501,503,505,508,510, TRANS, NPN, MMBT3904 TG-238 512,513,227,257 Q504 TRANS, NPN TIP48 TG-314 Q506,520,601,228, TRANS, PNP, MMBT3906L TG-244 262, 263 Q507 TRANS, PMP,MJE5731A TG-315 Q514,516,500,502,230, TRANS, NCHANNEL PWR

231 Q515,517,519,532,600 TRANS, NPN, MMBT3904 TG-238 Q518 TRANS,NPN DARLINGTON, TIP101 TG-230 Q521 TRANS,PNP DARLINGTON, TIP106 TG-231 Q523,531,525,509,533, TRANS, P-CHANNEL FET, MTP2P50 TG-208 511 Q526, 527 TRANS, N CHANNEL MOSFET,

Q528, 265 TRANS, NPN SILICON, BC846BL TG-278 Q529, 264 TRANS PNP, BC 856BL TG-287 R125 RESISTOR R-461-200K R149 RES, 10K, 5%, 250MW, METAL FILM R-376-10K R151,152,536,537, RES, 1K, 1%, 100MW, THICK FILM R-418-1K 667-671, 157, 661, 662, 665 R156 RES, 24.9K, 1%, 100MW, THICK FILM R-418-24.9K R200,201, 203, 232, 238 RESISTOR NETWORK, 10K-10K TF-236 R202, 204, 252, 255, 25

259

, 260, 263, 264, 267

FET,

MTPIN1

10DY

I94

RES, 100K, 1%, 100MW THICK FILM R-418-100K

TG-222

TG-302

Replaceable Parts 6-7

Table 6-1 (cont.)

Ana

log board parts list

Circuit designation Description Keithley part no.

R207 RES, 90.9K, 1%, 125mW, METAL FILM R-391-90.9K R210 RES, 768, 1%, 100MW, THICK FILM R-418-768 R213 RES NET 5K, .1%, 668A TF-243-5K R216, 318, 274-279, 319, RES, 20K, 1%, 100MW THICK FILM R-418-20K 345, 445 R217 RES, 121K, 1%,100MW, THICK FILM R-418-121K R218 RES, 80.6K, 1%, 100MW THICK FILM R-418-80.6K R219, 220, 230, 231, 616, RES, 49.9K, 1%, 100MW THICK FILM R-418-49.9K 482, 221, 483, 373, 374 R222 RES, 66.5K, 1%, 100MW, THICK FILM R-418-66.5K R224, 234-237, 244-247, RES, 10K, 1%, 100MW, THICK FILM R-418-10K 281, 282, 284-286, 225 R226, 288, 301, 617, 622, 6

, 655, 211, 223, 372

RES, 10K, 1%, 100MW, THICK FILM R-418-10K

R227 RES, 6.04K, 1%, 100MW THICK FILM R-418-6.04K R228, 229 RES, 2K, 1%, 100MW, THICK FILM R-418-2K R240, 243, 248, 251, 253, RES, 4.99K, 1%, 100MW THICK FILM R-418-4.99K R241, 242, 249, 250, 653,

RES

, 140K, 1%, 100MW THICK FILM R-418-140K 664 R257, 258, 261, 262,265, 266

, 313, 314-317, 366

RES, 4.99K, 1%, 100MW THICK FILM R-418-4.99K

R268-271, 209 RES, 1M, 1%, 100MW, THICK FILM R-418-1M R272, 273 RES, 249K, 1%, 100MW, THICK FILM R-418-249K R280, 439, 440 RES, 4.02K, 1%, 100MW, THICK FILM R-418-4.02K R283, 287, 297, 299, 350, RES, 30.1K, 1%, 100MW, THICK FILM R-418-30.1K R289, 291 RES, 45.3K, 1%, 100MW THICK FILM R-418-45.3K R293 RES,243K, 1%, 125MW, METAL FILM R-391-243K R298, 300 RES, 150K, 1%, 100MW, THICK FILM R-418-150K R302 RES, .0499, 1%, 100MW, THICK FILM R-418-.0499 R303 RES, 3.01K, 1%, 100MW THICK FILM R-418-3.01K R304-306 RES, 33, 5%, 250mW, METAL FILM R-376-33 R311, 312, 334, 337, 339, RES, 4.99K, 1%, 100MW THICK FILM R-418-4.99K 335 R320 RESISTOR R-461-10M R332, 604, 606, 423, 429,

, 505, 510, 551 R338, 364, 402-404, 416, 417

, 459, 488, 153, 239 R340, 343, 361, 362, 365, 369

, 336, 353, 480, 481

RES, 499, 1%, 100MW THICK FILM R-418-499

RES, 100K, 1%, 100MW THICK FILM R-418-100K

RES, 1K, 1%, 100MW, THICK FILM R-418-1K

R341, 342 RES, 13K, 1%, 100MW, THICK FILM R-418-13K R346, 370, 294 RESISTOR R-461-2M R347 THICK FILM TF-261

6-8 Replaceable Parts

Table 6-1 (cont.)

alog board parts list

Circuit designation Description Keithley part no.

R349, 351 RES, 33.2K, 1%, 100MW, THICK FILM R-418-33.2K R358 RES, 3.65K, 1%, 100MW, THICK FILM R-418-3.65K R363 THICK FILM TF-257 R367, 424, 425, 426, 603,

5, 484, 487

0 R368, 321, 212 RES, 332, 1%, 100MW, THICK FILM R-418-332 R375, 376, 295, 296 RES, 10, 10%, 100MW, THICK FILM R-418-10 R377, 378 RES, 33.2K, 1%, 125MW, METAL FILM R-391-33.2K R379-387, 391, 392, 308 RES, 475, 1%, 100MW, THICK FILM R-418-475 R389,390,431-434 RES, 1K, 1%, 100MW, THICK FILM R-418-1K R393-399, 411, 412, 413, RES, 357, 1%, 100MW, THICK FILM R-418-357 R422 RES, 4.7K, 5%, 250MW, METAL FILM R-376-4.7K R437, 133, 141, 117, 150,

4 R441, 442 RES, 3.01K, 1%, 100MW THICK FILM R-418-3.01K R444 RES, 20K, 1%, 100MW THICK FILM R-418-20K R446 RES, 10K, 1%, 100MW, THICK FILM R-418-10K R447, 448 RES, 11K, 1%, 100MW, THICK FILM R-418-11K R450 RES, 2.0M, .1%, 1/4W METAL FILM R-321-2M R451 RES,221K, 1%, 1/10W, METAL FILM R-263-221K R452 RES, 20K, .5%, 1/8W, METAL FILM R-351-20K R453 RES, 1.8K, .1%, 1/10W, METAL FILM R-263-1.8K R454, 455 RES, 49.9, .1%, 1/10W METAL FILM R-263-49.9 R467-471 RES, 100, .1%, 1/10W, METAL FILM R-263-100 R472, 478, 466, 355, 290,

309

4, R473 RES, 30.1K, 1%, 100MW, THICK FILM R-418-30.1K R474-477 RES, .2, 1%, 1W R-441-.2 R479, 501, 529, 530, RES, 249,1%, 100MW, THICK FILM R-418-249 534, 563 R485, 525, 526, 552, 348 RES, .0499, 1%, 100MW, THICK FILM R-418-.0499 R489, 356, 359, 418-421, RES, 1K, 1%, 100MW, THICK FILM R-418-1K 456, 458, 460, 462, 464 R490 RES, 205, .1%, 1/10W, METAL FILM R-263-205 R500, 508, 521, 527, 528, RES, 562K, 1%, 125MW, METAL FILM R-391-562K 533, 535, 549, 566, 567 R502, 513, 515, 561, 562, 56

569-573 R503, 512, 514, 532, 560 RES, 249,1%, 100MW, THICK FILM R-418-249 R504, 511RES, 10K, 1%,

100M

W, THICK FILM R506 RES, 30.1, 1%, 1/8W METAL FILM R-88-30.1 R507 RES, 18.7, 1%, 125mW, METAL FILM R-391-18.7

RES, 4.99K, 1%, 100MW THICK FILM R-418-4.99K

ESISTOR R-461-1M

RES, 1K, 1%, 100MW, THICK FILM R-418-1K

RES, 562K, 1%, 125MW, METAL FILM R-391-562K

Replaceable Parts 6-9

Table 6-1 (cont.)

alog board parts list

Circuit designation Description Keithley part no.

R509 RES, 18.7, 1%, 125mW, METAL FILM R-391-18.7 R516, 523 RES, 4.02K, 1%, 100MW,, THICK FILM R-418-4.02K R517, 539-541 RES, 12.1, 1%, 125MW METAL FILM R-391-12.1 R520 RES, 301, 1%, 100MW, THICK FILM R-418-301 R524, 538 RES, 12.1, 1%, 125MW METAL FILM R-391-12.1 R531 RES, 301, 1%, 100MW, THICK FILM R-418-301 R542, 543 RES,.5,5%,1W, METAL R-444-.5 R544-547, 292 RES, 100K, 1%, 100MW THICK FILM R-418-100K R548 RES, 30.1K, 1%, 100MW, THICK FILM R-418-30.1K R550, 435, 436 RES, 499, 1%, 100MW THICK FILM R-418-499 R555 RES, 7.32K, .1%, .125MW, THIN FILM R-456-7.32K R556 RES, 42.7K, .1%, .125W,THIN FILM R-456-42.7K R557 RES, 17.2K, .1%, .125W, THIN FILM R-456-17.2K R559 RES, 1.5K, 1%, 100MW THICK FILM R-418-1.5K R568, 574, 575 RES, 562K, 1%, 125MW, METAL FILM R-391-562K R600, 449 RES, 100K, 1%, 100MW THICK FILM R-418-100K R602, 607, 558 RES, 1.5K, 1%, 100MW THICK FILM R-418-1.5K R609 RES NET TF-245 R610 RES, 1.28M, .1%, 1/8W METAL FILM R-176-1.28M R611, 621 RES, 475, 1%, 100MW, THICK FILM R-418-475 R612 RES, 5.11K, 1%, 100MW, THICK FILM R-418-5.11K R613, 624, 659, 660, RES, 100, 1%, 100MW, THICK FILM R-418-100 518, 519 R614, 615, 208, 553, 554 RES, 2.21K, 1%, 100MW, THICK FILM R-418-2.21K R618 RES, 34K, 1%, 100MW, THICK FILM R-418-34K R619 RES, 4.75K, 1%, 100MW, THICK FILM R-418-4.75K R620 RES, 82.5, 1%, 100MW, THICK FILM R-418-82.5 R623, 154, 155 RES, 10, 10%, 100MW, THICK FILM R-418-10 R650 ,651 RES NET, 9K-1K, MICRO DIVIDER TF-246-2 R652, 665 RES, 357, 1%, 100MW, THICK FILM R-418-357 R656 RES, 8,98K, .1%,.125W THIN FILM R-456-8.98K R657, 658 RES, 1M, 1%, 100MW, THICK FILM R-418-1M R666 RES NET, 3K, 12K, 0.1%, 100MW THIN-

TF-237-2

FILM RT200 POLYSWITCH, PTC RESISTOR RT-17 T500 TRANSFORMER TR-311A TP200-215, 218-225, 227, 2

, 230-235, 500

CONN,TEST POINT CS-553

TP501, 506-510 CONN,TEST POINT CS-553 U201, 212, 214, 230, 241, IC, CMOS ANAL SWITCH, DG444DY IC-866 400-406, 652 U202, 650, 203 IC, OP AMP LT1112 IC-1048

6-10 Replaceable Parts

Table 6-1 (cont.)

alog board parts list

Circuit designation Description Keithley part no.

U204, 229 IC, 8-CHAN ANA MULTI-

U205, 407 IC, HEX INVERTERS, 74HC400 IC-880 U209, 215 IC, QUAD COMPARATOR,LM339D IC-774 U210, 220 IC, DUAL BIPOLAR OP-AMP, LT1124CS8 IC-955 U211, 213 IC, BIFET OP AMP, AD712JR IC-834 U221, 227 IC, DIFF. AMP, AMP03GP IC-988 U222 IC, OP-AMP, LTC1050CS8 IC-791 U223, 409, 237 IC, MOSFET DRIVER, TLP591B IC-877 U226, 659 IC, 20V OP-AMP, LT1097S8 IC-767 U231, 219, 235, 234, IC, OP AMP, LOW POWER AD795JR IC-1052 262, 232 U238 IC, CMOS ANA SWITCH SPST

U239 IC, QUAD 2-INPUT NAND, 74HC00M IC-781 U240 IC,POS NAND GATES/INVERT,74HCT14 IC-656 U242-247 IC,DUAL HIGH CMR/SPEED

U252-256 IC 8 STAGE SHIFT CD74HC4094M IC-1026 U257 IC, SUPPLY VOLT SUPERVI-

U263, 228 IC, OP-AMP, LOW NOISE LT1007CS8 IC-949 U265 IC, PHOTO TRANS, TLP626BV-LFI IC-1006 U408, 218, 216, 225 ICM DUAL J-FET OP-AMP, OP-282GS IC-968 U500 IC, OP-AMP, AD847JN IC-890 U501 IC, VOLT COMPARATOR LM393D IC-775 U502 PROGRAMMABLE TEMP CONTROLLER IC-1062 U600, 264, 206, 207, IC, DUAL PICOAMP OP-AMP AD706JR IC-910 208, 233 U601 IC,QUAD D FLIP FLOP W/CLK,RESET

U604 IC, NCHAN LAT DMOS QUADFET,

U605 INTEGRATED CIRCUIT, OPA177GS IC-690 U606, 236 IC, HI-SPEED BIFET OP-AMP, AD711JR IC-894 U607 IC, OP-AMP, NE5534D IC-802 U608 IC, VOLT. COMPARATOR,LM311M IC-776 U609 PROGRAMMED IC 2400-801-* U651, 602, 603, 224 IC, QUAD 2 IN NOR, 74HCT02 IC-809 U660, 661 IC, 16 BIT DAC, AD7849BR IC-1004 VR200, 201 DIODE, ZENER MM524694 DZ-113 VR214, 215, 504, 505, 506 DIODE, ZENER, 8.2V, MMBZ5237 DZ-92 VR216, 217, 650, 651 DIODE, ZENER 17V, MMBZ5247BL DZ-104

IC-844

PLEXER,DG408DY

IC-909

MAX3

CSE

IC-588

OPTO,

CPL-2631

IC-860

SOR,TL7705A

74HC175 IC-923

IC-893

5400CY

Replaceable Parts 6-11

Table 6-1 (cont.)

alog board parts list

Circuit designation Description Keithley part no.

VR218, 219 DIODE, ZENER 30V BZX84C30 DZ-106-30 VR400, 401 DIODE, ZENER 4.7V, IN4732A DZ-67 VR403, 601, 604 DIODE, ZENER 3.3V, MMBZ5226BL DZ-94 VR404-406, 202, 203 DIODE,ZENER 5.1V, BZX84C5V1 DZ-88 VR500, 501 DIODE, ZENER 6.0V, BZX84B6V2 DZ-87 VR502, 503 DIODE ZENER 12V, MMSZ12T1 DZ-112 VR507 DIODE, ZENER 22V, BZX84C22 DZ-86 VR508, 509 DIODE, ZENER 9.1V, IN4739A DZ-56 VR600 DIODE,ZENER 6.4V, IN4579 DZ-73 VR602, 603 DIODE, ZENER, 6.2V MMSZ6V2 DZ-97 Y600 OSCILLATOR HIGH SPEED CMOS

* Order current firmware revision, for example A01.

CR-37

6-12 Replaceable Parts

Table 6-2

Digital board parts list

Circuit designation Description Keithly part no.

BT1 BATTERY BA-46 C1, 3 ,77, 11-14, 16, 17, 20, 22, 23

, 25, 26, 30, 40 C2, 56, 8, 76, 78, 80, 82, 89 CAP, .01UF, 10%, 50V CERAMIC C-491-.01 C4, 10 CAP, 15P, 1%, 100V CERAMIC C-512-15P C5 CAP, .1UF, 20%,100V, CERAMIC C-436-.1 C15, 38 ,61, 47 CAP, 47P, 5%, 100V, CERAMIC C-465-47P C19, 85, 41, 69, 70, 71, 73, 24 CAP, .1UF, 10%, 25V, CERAMIC C-495-.1 C28, 60 CAP, 47P, 5%, 100V, CERAMIC C-465-47P C31 CAP, 100PF, 5%, 100V, CERAMIC C-465-100P C32, 34, 63, 64 CAP, 47UF, 20%, 100V ALUM ELEC C-521-47 C33, 35, 52-55 CAP, 22UF, 20%, 25V, TANTALUM C-440-22 C36, 50, 39, 44-46, 49, 59, CAP, .1UF, 10%, 25V, CERAMIC C-495-.1 66-68, 79, 81, 48, 83 C42, 43, 97-99, 101, 102, 104 CAP, .1UF, 20%,50V,CERAMIC C-418-.1 C57, 58 CAP, 1000PF, 10%, 50V, MONO

C62, 91 CAP, 10UF, 20%, 25V, TANTALUM C-440-10 C65 CAP, .022UF, 10%, 50V CERAMIC C-491-.022 C72, 86 CAP, 1UF, 20%, 50V CERAMIC C-519-1 C74, 75 CAP, 470UF, 20%, 25V ALUM ELEC C-413-470 C84, 6, 7, 9, 18, 90 CAP,.1UF, 10%, 25V, CERAMIC C-495-.1 C87, 88 CAP, .01UF, 10%, 50V CERAMIC C-491-.01 C96, 100, 103, 105 CAP,.1UF, 20%,50V,CERAMIC C-418-.1 C106, 107 CAP, 1UF, 20%, 100V, CERAMIC C-487-1 CR1-4 ULTRAFAST POWER RECTIFIER RF-107 CR6, 9, 12, 20 ULTRAFAST POWER RECTIFIER RF-105 CR8, 11, 17, 21, 25-28, 31, 19 DIODE, SWITCHING, 250MA, BAV103 RF-89 CR13 DIODE, DUAL HSM-2822T31 RF-95 CR14, 15, 22-24, 5, 32, 33 DIODE, DUAL SWITCHING, BAV99L RF-82 CR29, 30, 34-39 DIODE, SWITCHING, MMBD914 RF-83 F1 POLYSWITCH, SMD030-2 FU-103 HS1, 2, 3 HEAT SINK HS-33 IC1 IC,POS VOLTAGE REG +15V, 500MA,

J1 C J2, 4 CONN, BERG CS-339 J3 CONN, RT ANGLE, MALE, 9 PIN CS-761-9 J5 CONN, MICRODIN W/GND FINGERS CS-792 J6 CONN, D-SUB MALE, BOARDLOCK

J21 CONN, MOLEX, 3-PIN CS-772-3

CAP, .1UF, 10%, 25V, CERAMIC C-495-.1

C-452-1000P

MIC

M15

ONN, RIGHT ANGLE, 24PIN CS-507

CS-848-9

TYPE

Replaceable Parts 6-13

Table 6-2 (cont.)

Dig

l board parts list

ita

Circuit designation Description Keithly part no.

K1 RELAY, SURFACE MOUNT RL-188 L1 FERRITE CHIP 600 OHM BLM32A07 CH-62 LS1 BEEPER, 5V, 30MA, QMX-05 EM-6 P1001 CABLE ASSEMBLY CA-152-1 P1003 CABLE ASSEMBLY CA-32-9B P1004, 1002 CABLE ASSEMBLY CA-62-4B Q1-6 TRANS, N-MOSFET, VN0605T TG-243 Q7,8 POWER MOSFET IRFZ346 TG-313 Q10 TRANS, NPN, MMBT3904 TG-238 R1,37 RES, 2.21K, 1%, 100MW, THICK FILM R-418-2.21K R2, 13, 4, 52, 14, 19, 34, 35, 50,

, 63, 68, 62, 75

RES, 10K, 1%, 100MW, THICK FILM R-418-10K

R5 RES, 10M, 1%, 125MW, THICK FILM R-418-10M R6, 47, 60, 84, 41 RES, 10K, 1%, 100MW, THICK FILM R-418-10K R9, 11, 12, 16, 20 RES,100,5%,250MW,METAL FILM R-376-100 R10 RES, 332K,1%, 100MW, THICK FILM R-418-332K R15, 17, 21, 23, 31, 70, 72, 18, 6

, 59, 48, 61, 8

RES, 1K, 1%, 100MW, THICK FILM R-418-1K

R25, 28, 49 RES, 4.75K, 1%, 100MW, THICK FILM R-418-4.75K R30, 26 RES, 100, 1%, 100MW, THICK FILM R-418-100 R33, 39 RES, .0499, 1%, 100MW, THICK FILM R-418-.0499 R38 RES, 11K, 1%, 100MW, THICK FILM R-418-11K R40, 32, 27, 24 RES, 5.1K,5%, 125MW, METAL FILM R-375-5.1K R43, 44, 45, 65 RES, 2.21K, 1%, 100MW, THICK FILM R-418-2.21K R51 RES, 7.5K, 1%, 125MW, METAL FILM R-391-7.5K R53, 54 RES, 3.01K, 1%, 100MW THICK FILM R-418-3.01K R55 RES, 10M, 1%, 125MW, THICK FILM R-418-10M R56 RES, 3.01K, 1%, 100MW THICK FILM R-418-3.01K R57 RES, 1M, 1%, 100MW, THICK FILM R-418-1M R73, 74, 76, 78-81,

RES, 10K, 1%, 100MW, THICK FILM R-418-10K

83, 7, 69,71,85-89 R77 RES, 15k, 1%, 100MW, THICK FILM R-418-15K R82 RES, 499, 1%, 100MW THICK FILM R-418-499 R91, 92 RES, 200, 1%, 100MW, THICK FILM R-418-200 S01, 2 SOCKET PLCC-032-T-A SO-143-32 S1 SWITCH, PUSHBUTTON (6 POLE) SW-466 T1 TRANSFORMER FOR F SUPPLIES TR-302B TP3 CONN, TEST POINT CS-553 U1, 22 IC, DUAL D-TYPE F/F, 74HC74 IC-773 U2 IC, MICROMANAGER, DS12365-10 IC-884 U3 MICROCONTROLLER, MC68332-FC LSI-161 U4 IC +5V RS-232 TRANSCEIVER, MAX202 IC-952 U5 IC, OP-AMP, AD705JR IC-814

6-14 Replaceable Parts

Table 6-2 (cont.)

Dig

ita

l board parts list

Circuit designation Description Keithly part no.

U6 IC,OCTAL INTER BUS TRANS,75161 IC-647 U7 IC, 4-CHANNEL PWR DRIVER, 2549B IC-1044 U8 IC, NEG VOLTAGE REG -15V, 500MA,

U9 IC, HEX INVERTERS, 74HCT04 IC-880 U11 IC, VOLT COMPARATOR LM393D IC-775 U12, 14 LARGE SCALE IC LSI-162-70 U13 IC, GPIB ADAPTER, 9914A LSI-123 U15 PROGRAMMED ROM 2400-803-* U16 PROGRAMMED ROM 2400-804-* U17 IC, SERIAL EPROM 24LC16B LSI-153 U18 IC,+5V VOLTAGE REGULATOR, LM2940CT U19 IC, SCHMITT-TRIGGER NAND GATE IC-950 U20 IC,OCTAL INTERFACE BUS,75160 IC-646 U21 IC, DUAL POWER MOSFET DRIVER,

U23, 25 IC, POS NAND GATES/INVERT,

U24 IC, TRIPLE 3 IN NAND, 74F10 IC-659 VR1 DIODE, ZENER 33V, IN4752A DZ-68 Y1 CRYSTAL, FSM327 CR-41

*Order current firmware revision, for example A03.

79M1

TSC

74H

CT14

IC-437

IC-656

Replaceable Parts 6-15

Table 6-3

Display board parts list

Circuit designation Description Keithley part no.

C901 CAP, 22UF, 20%, 6.3, TANTALUM C-417-22 C902, 904, 907, 908, 910 CAP, .1UF, 20%,100V, CERAMIC C-436-.1 C903, 905, 906, 909, 911 CAP,.1UF, 20%,50V, CERAMIC C-418-.1 C912 CAP, 2.2UF, 20%,100V, ALUM ELEC C-503-2.2 C913, 914 CAP, 100UF, 20%,16V, TANTALUM C-504-100 C915, 916 CAP, 33PF, 10%, 100V, CERAMIC C-451-33P CR901-904 DIODE, SWITCHING, 250MA, BAV103 RF-89 CR905, 906 DIODE, SWITCHING, MMBD914 RF-83 DS901 VACUUM FLUORESCENT DISPLAY DD-51C J1032 CONN, BERG J1033 CONN, HEADER STRAIGHT SOLDER

CS-368-16

PIN Q901, 902 TRANS, NPN GEN PURPOSE BC868 TG-293 R901 RES NET, 15K, 2%, 1.875W TF-219-15K R902 RES, 13K, 5%,125MW, METAL FILM R-375-13K R903, 904 RES, 4.7K, 5%, 250MW, METAL FILM R-376-4.7K R905 RES, 1M, 5%, 125MW, METAL FILM R-375-1M R906 RES,1K, 5% 250MW, METAL FILM R-376-1K R907 RES, 240, 5%, 250MW, METAL FILM R-376-240 R908 RES, 10M, 5%, 125MW, METAL FILM R-375-10M T901 TRANSFORMER, TDK, ER14.5 SERIES TR-300 U901,904,905 IC, LATCHED DRIVERS,UCN-5812EPF-1 IC-732 U902 IC, PROGRAMMED 7001-800-* U903 IC, 32-BIT, SERIAL UCN5818EPF-1 IC-830 VR901 DIODE, ZENER, 8.2V, MMBZ5237 DZ-92 Y901 CRYSTAL, 4MHZ CR-36-4M

* Order current firmware revision. For example, 7001-800-A02.

6-16 Replaceable Parts

Table 6-4

Mechanical parts list

Quantity Decription Keithley part no.

4 BANANA JACK, PUSH-IN, BLACK BJ-13-0 1 BANANA JACK, PUSH-IN, BLUE BJ-13-6 4 BANANA JACK, PUSH-IN, RED BJ-13-2 1 BANANA JACK, PUSH-IN, WHITE BJ-13-9 1 BEZEL, REAR 428-303D 1 BOTTOM SHIELD 2400-309A 4 CHOKE CH-58-1A 1 COVER 2400-317B 1 DISPLAY LENS 2410-311B 2 FOOT, EXTRUDED FE-22A 2 FOOT, RUBBER FE-6 1 FUSE, 2.5A 5 X 20MM FU-106-2.5 1 HANDLE 428-329F 1 HEAT SINK 2400-308E 2 HOLDER, FERRITE 2001-367A 1 LED, HIGH POWER PL-94 1 LENS, LED 6517-309A 1 LINE CORD CO-7 1 LINE FILTER LF-11 1 MEMBRANE SWITCH, FRONT PANEL 2410-313B 1 MOUNTING EAR, LEFT 428-338B 1 MOUNTING EAR, RIGHT 428-328E 1 POWER SUPPLY PS-41B 1 SWITCHPAD 2400-315A 1 TEST LEADSET CA-23

Specifications

Tektronix 2410 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual