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Elenco Electronics M-2665K User Manual

Elenco Electronics M-2665K
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DIGITAL MULTIMETER KIT
MODEL M-2665K
WIDE RANGE DIGITAL MULTIMETER WITH
CAPACITANCE AND TRANSISTOR TESTING FEATURES
Assembly and Instruction Manual
Elenco™ Electronics, Inc.
Copyright © 1991 Elenco™ Electronics, Inc. Revised 2002 REV-P 753005
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Elenco Electronics M-2665K Specifications

General IconGeneral
TypeDigital Multimeter Kit
DisplayLCD
Display Digits3.5
Resistance Range200Ω to 2MΩ
Diode TestYes
Transistor TestYes
Continuity BuzzerYes
Continuity TestYes
Square Wave GeneratorYes
Battery Type9V
DC Current Range200µA to 10A

Summary

Assembly Guidance and Component Identification

Important Construction Notes

Crucial advice for successful kit assembly and handling.

Soldering Techniques and Best Practices

Covers good soldering looks and common poor connections.

Identifying Capacitor and Resistor Values

Guides on reading capacitor and resistor values using color codes.

Section A: Meter Display Circuit Assembly

Section B: DC Voltage & Current Circuit Assembly

Section C: AC Voltage & Current Circuit Assembly

Section E: Capacitance and Transistor Testing Circuit Assembly

Section F: Final Assembly

Final Assembly Steps

Instructions for completing the multimeter assembly.

Section-Specific Testing Procedures

Troubleshooting Guide

U1 (7106R) Voltage Test

Verifies the operational status of the main IC and reference voltage.

Voltage/OHM Section Troubleshooting

Specific checks for voltage and resistance measurement issues.

AC Voltage Section Troubleshooting

Specific checks for AC voltage measurement problems.

Amps Section Troubleshooting

Specific checks for current measurement scale issues.

hFE Section Troubleshooting

Specific checks for transistor testing (hFE) problems.

Capacitance Section Troubleshooting

Specific checks for capacitance measurement issues.

Diode Test Troubleshooting

Specific checks for diode test function problems.

Using the Digital Multimeter

Methods of Measurement

Step-by-step guides for performing DC/AC voltage, current, resistance, diode, and transistor tests.

Operation and Maintenance

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