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LeCroy Waverunner2 LT584M

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LTXXX2-SM-E
LeCroy Waverunner2 Series
Service Manual
Version D- December 2003
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LeCroy Waverunner2 LT584M Specifications

General IconGeneral
BrandLeCroy
ModelWaverunner2 LT584M
CategoryTest Equipment
LanguageEnglish

Summary

LeCroy Waverunner2 Series Service Manual

Warranty and Product Support

Warranty

Details LeCroy's product warranty terms and conditions, including duration and coverage.

Product Assistance

Information on obtaining help with installation, calibration, and usage from LeCroy support.

Maintenance Agreements

Describes customer support services offered under maintenance agreements for extended coverage.

Warranty and Product Support - Service Details

Service and Repair

Procedure for returning products for maintenance and repair services, including customer responsibility.

What Comes with Your Scope

Lists the standard accessories included with the oscilloscope upon shipment.

General Information

Product Assistance Contacts

Contact information for LeCroy customer support centers worldwide.

Safe Operating Environment

Specifies operating environment parameters like temperature, humidity, and altitude.

General Information - Safety

Safety Symbols

Explains various safety symbols used in the manual and on the instrument for user awareness.

General Information - Power and Grounding

Power Requirements

Details the oscilloscope's power supply voltage and frequency requirements.

Fuses

Information on the fuses protecting the oscilloscope's power supply.

General Information - Power On Procedure

Power On

Instructions for connecting and powering on the oscilloscope.

Specifications

Vertical System Specifications

Details specifications for bandwidth, input impedance, resolution, and sensitivity.

Timebase System Specifications

Covers timebase ranges, clock accuracy, and interpolator resolution.

Specifications - Acquisition System

Acquisition System Details

Provides data on single shot sample rates and maximum acquisition points.

Acquisition Modes

Explains different acquisition modes like RIS and Sequence Mode.

Specifications - Trigger and Probes

Triggering System

Details trigger modes, sources, coupling, and delay settings.

Probes

Information about compatible probes and the ProBus system.

Specifications - Display and Signal Processing

Color Waveform Display

Specifications for the display type, resolution, and waveform styles.

Rapid Signal Processing

Information on processor, processing memory, and realtime clock.

Specifications - Interface and Safety

Interface Options

Details remote control interfaces like GPIB, RS-232-C, Ethernet, and ports.

Environmental and Safety

Operating conditions, safety approvals (CE, UL, cUL).

Specifications - Dimensions and Math Tools

Physical Dimensions and Weight

Provides the physical dimensions and weight of the oscilloscope.

Standard Math Tools

Lists standard math functions available for signal processing.

Specifications - Measurement Tools

Standard Measure Tools

Lists standard measurement tools for parameters like amplitude and frequency.

Cursor Measurements

Details relative and absolute time/voltage measurements using cursors.

Specifications - Advanced Features

WaveAnalyzer Capabilities

Features for FFT, averaging, and histograms.

Free Software Utilities

Mentions free software utilities like ScopeExplorer and MaskMaker.

Specifications - Triggering and Output

SMART Trigger Types

Details advanced trigger types like State/Edge qualified, Dropout, Pattern, and TV triggers.

Hardcopy Functionality

Functionality for printing screen images and supported printers.

Specifications - Documentation

Included Documentation

Lists included documentation and software utilities.

Theory of Operation

Processor Board

Details the MPC603e processor, its architecture, and power supply.

Theory of Operation - System Architecture

CPU Block Diagram

A block diagram illustrating the CPU and its interfaces.

Theory of Operation - Memory System

SDRAM Details

Details the SDRAM circuit, module type, and control logic.

Burst Access Timing

Describes burst access modes for SDRAM data transfer.

Theory of Operation - Peripherals and Interfaces

VGA Controller

Details the VGA controller chip and its capabilities.

Super-IO Device

Describes the Super-I/O device controlling ports like RS-232C and floppy.

Theory of Operation - Bus and Peripherals

Bus Sizer Function

Function of the bus sizer in handling 8-bit peripherals.

Flash PROM

Information about the Flash PROM used for boot-up.

Theory of Operation - Memory and Real Time Clock

NVRAM Functionality

Describes the NVRAM for storing panel setups and trace memories.

Real Time Clock (RTC)

Details the Real Time Clock functions and its crystal.

Theory of Operation - System Control

Interrupt Controller

Explains the interrupt controller and its priority levels.

Reset Circuit

Describes the reset circuit operation.

Theory of Operation - Interfaces

Bus Error Generation

How the system handles bus errors.

GPIB Interface

Details the GPIB controller and software.

Theory of Operation - IO Structure

IO Structure and CPLDs

Block diagram showing I/O structure and CPLD relationships.

Theory of Operation - Main Board

Main Board Overview

Introduction to the main board sections.

Front End Signal Processing

Details the front end analog signal processing for ADC and trigger.

Theory of Operation - Control Systems

Relay Control

Discusses relay control for attenuator and gain settings.

Theory of Operation - Acquisition System

Acquisition Block Diagram

Block diagram of the acquisition system, including digitizer, timebase, and front ends.

Theory of Operation - Control and Transfer

Control & Transfer Block Diagram

Block diagram showing control and data transfer paths.

Theory of Operation - Channel Modes

Channel Mode Diagrams

Diagrams illustrating channel modes for different models (LT374, LT264).

Theory of Operation - Control and Conversion

P Control via RPM

Explains microprocessor control via the RPM.

Analog to Digital Converter

Introduction to the ADC system using HSY632 and HAM631 circuits.

Theory of Operation - Time Base

Time Base System Circuits

Details the circuits involved in the time base system (MCG426, MTB411A, MST429A).

Theory of Operation - Power Supply

Power Supply Overview

Overview of the power supply unit, input voltages, and converters.

Performance Verification

Introduction to Performance Verification

Explains the purpose of performance verification procedures.

List of Tested Characteristics

Lists quantifiable performance limits tested.

Performance Verification - Setup and Turn On

Test Equipment Required

Lists external traceable signal generators and measurement equipment.

Turn On Procedure

Instructions for powering on the oscilloscope and initial checks.

Performance Verification - Input Impedance (Channel)

Channel Input Impedance Measurement

Procedures for measuring DC 1M Ohm channel input impedance.

Performance Verification - Input Impedance (Channel ACDC)

AC 1 M Ohm Channel Impedance

Procedure for measuring AC 1M Ohm channel input impedance.

DC 50 Ohm Channel Impedance

Procedure for measuring DC 50 Ohm channel input impedance.

Performance Verification - Input Impedance (External Trigger)

External Trigger Input Impedance

Measurement of input impedance for the external trigger.

Performance Verification - Trigger Impedance

DC 1 M Ohm Trigger Impedance

Procedure for measuring DC 1M Ohm external trigger input impedance.

Performance Verification - Trigger Impedance (DC 50 Ohm)

DC 50 Ohm Trigger Impedance

Procedure for measuring DC 50 Ohm external trigger input impedance.

Performance Verification - Leakage Current

Channel Leakage Current Measurement

Procedure for measuring channel leakage current.

Performance Verification - Leakage Current (External Trigger)

External Trigger Leakage Current

Procedure for measuring leakage current for the external trigger.

Performance Verification - Noise

RMS Noise Measurement

Procedure for measuring RMS noise at different settings.

Performance Verification - Noise Measurement (DCAC 1 M)

DC 1 M Ohm RMS Noise

Procedure for measuring DC 1M Ohm RMS noise.

AC 1 M Ohm RMS Noise

Procedure for measuring AC 1M Ohm RMS noise.

Performance Verification - Noise Measurement (DC 50 Ohm)

DC 50 Ohm RMS Noise

Procedure for measuring DC 50 Ohm RMS noise.

Performance Verification - DC Accuracy

DC Accuracy Test Procedure

Detailed steps for performing the DC Accuracy test.

Performance Verification - Offset Accuracy

Offset Accuracy Test Procedure

Detailed steps for performing the Offset Accuracy test.

Performance Verification - Bandwidth

Bandwidth Test Procedure

Steps to test bandwidth using an external sine wave generator.

Performance Verification - Bandwidth (DC 50 Ohm Limiter)

DC 50 Ohm Bandwidth with Limiter

Procedure for testing bandwidth with the limiter on.

Performance Verification - Trigger Level

Channel Trigger at 0 Division Threshold

Procedure for channel trigger at 0 division threshold with DC coupling.

Performance Verification - Trigger Level (Positive Threshold)

Channel Trigger at +3 Divisions Threshold

Procedure for channel trigger at +3 divisions threshold.

Performance Verification - Trigger Level (Negative Threshold)

Channel Trigger at 3 Divisions Threshold

Procedure for channel trigger at -3 divisions threshold.

Performance Verification - External Trigger

External Trigger at 0 Division Threshold

Procedure for external trigger at 0 division threshold.

Performance Verification - External Trigger (Positive Threshold)

External Trigger at +3 Divisions Threshold

Procedure for external trigger at +3 divisions threshold.

Performance Verification - External Trigger (Negative Threshold)

External Trigger at 3 Divisions Threshold

Procedure for external trigger at -3 divisions threshold.

Performance Verification - External10 Trigger

External10 Trigger at 0 Division Threshold

Procedure for external/10 trigger at 0 division threshold.

Performance Verification - External10 Trigger (Positive Threshold)

External10 Trigger at +3 Divisions Threshold

Procedure for external/10 trigger at +3 divisions threshold.

Performance Verification - External10 Trigger (Negative Threshold)

External10 Trigger at 3 Divisions Threshold

Procedure for external/10 trigger at -3 divisions threshold.

Performance Verification - Smart Trigger

Pulse Width Trigger (10 nsec)

Procedures for testing pulse width triggers under 10 nsec.

Performance Verification - Smart Trigger (100 nsec)

Pulse Width Trigger (100 nsec)

Procedures for testing pulse width triggers over 100 nsec.

Performance Verification - Time Base Accuracy

Time Base Accuracy Test Procedure

Detailed steps for testing time base accuracy.

Test Record - Performance Certificate

Performance Certificate Details

Certificate template for performance testing of oscilloscopes.

Required Test Equipment

Lists instruments required for performance verification.

Test Records - Impedance and Leakage

Impedance Test Record Table

Table for recording impedance measurements.

Leakage Current Test Record Table

Table for recording leakage current measurements.

Test Records - Noise and DC Accuracy

RMS Noise Test Record Table

Table for recording RMS noise measurements.

DC Accuracy Test Record Table

Table for recording DC accuracy measurements.

Test Records - Offset and Bandwidth

Offset Test Record Table

Table for recording offset accuracy measurements.

Bandwidth Test Record Table (LT37 xLT354)

Table for bandwidth test records.

Test Records - Bandwidth Tables

Bandwidth Test Record Table (LT26 x)

Bandwidth test records for LT26x models.

Bandwidth Test Record Table (LT584)

Bandwidth test records for LT584 models.

Test Records - Bandwidth Tables (100 mV)

Bandwidth Test Record Table (LT37 xLT354, 100 mV)

Bandwidth test records for LT37x/LT354 at 100 mV/div.

Bandwidth Test Record Table (LT26 x, 100 mV)

Bandwidth test records for LT26x at 100 mV/div.

Test Records - Bandwidth Tables (LT584) and Limiter

Bandwidth Test Record Table (LT584, 100 mV)

Bandwidth test records for LT584 at 100 mV/div.

Bandwidth Limiter Test Record Table

Table for bandwidth limiter test records.

Test Records - Trigger Tables

Channel DC Trigger Test Record Table

Table for recording channel DC trigger test results.

External Trigger Test Record Table

Table for external and Ext/10 trigger test results.

Test Records - Smart Trigger and Time Base

Smart Trigger Test Record Table

Table for recording smart trigger test results.

Time Base Test Record Table

Table for recording time base accuracy test results.

Maintenance

Safety Precautions

Outlines safety precautions for servicing and handling high-energy circuits.

Antistatic Precautions

Details precautions against static discharge to protect components.

Maintenance - Software Updates

Software Update Procedure

Procedures for upgrading instrument firmware using floppy disk or memory card.

Maintenance - Software Options

Software Options Available

Lists available software options like EMM and WAVA.

Changing Software Option Key

Procedures for entering software option keys.

Maintenance - Service Equipment and Parts

Recommended Test Equipment

Lists required test equipment and spare parts for service.

Board Exchange Procedures

Procedures for exchanging processor and main boards.

Maintenance - Board Exchange (Power Board)

Power Board Exchange Procedure

Procedure to confirm voltages after power board exchange.

Maintenance - Troubleshooting Introduction

Troubleshooting and Flow Charts

Introduces troubleshooting information for qualified personnel.

Line Fuses Replacement

Step-by-step guide for replacing line fuses.

Maintenance - Troubleshooting Flow Charts

Fan Problem Troubleshooting

Flow chart for diagnosing fan issues.

Power Supply Problem Troubleshooting

Flow chart for diagnosing power supply issues.

Display Problem Troubleshooting

Flow chart for diagnosing display problems.

Front Panel Controls Troubleshooting

Flow chart for troubleshooting unresponsive front panel controls.

Maintenance - Specific Troubleshooting

Fan Problem Diagnosis

Detailed troubleshooting steps for fan problems.

Maintenance - Specific Troubleshooting (Power)

Power Supply Voltage Problem Diagnosis

Detailed troubleshooting steps for power supply voltage issues.

Maintenance - Specific Troubleshooting (Display)

Display Problem Diagnosis

Detailed troubleshooting steps for display problems.

Maintenance - Specific Troubleshooting (Front Panel)

Front Panel Controls Diagnosis

Detailed troubleshooting steps for unresponsive front panel controls.

Maintenance - Specific Troubleshooting (Remote Control)

Remote Control GPIBRS232 Problem Diagnosis

Detailed troubleshooting steps for remote control communication issues.

Maintenance - Specific Troubleshooting (Floppy)

Floppy Disk Drive Problem Diagnosis

Detailed troubleshooting steps for floppy disk drive problems.

Maintenance - Specific Troubleshooting (Verification)

Performance Verification Fails Diagnosis

Detailed troubleshooting steps for failed performance verification tests.

Maintenance - Specific Troubleshooting (Printer)

Graphic Printer Problem Diagnosis

Detailed troubleshooting steps for graphic printer problems.

Maintenance - Specific Troubleshooting (Centronics)

Centronics Interface Problem Diagnosis

Detailed troubleshooting steps for Centronics interface problems.

Maintenance - Specific Troubleshooting (Hard Disk)

Hard Disk Drive Problem Diagnosis

Detailed troubleshooting steps for hard disk drive problems.

Mechanical Parts & Removal

Upper Cover Assembly Removal

Steps for removing the upper cover assembly, including printer.

Mechanical Parts & Removal - Bottom Cover

Bottom Cover Assembly Removal

Steps for removing the bottom cover assembly.

Mechanical Parts & Removal - Printer Assembly

Printer Assembly Removal

Steps for removing the printer assembly.

Mechanical Parts & Removal - Floppy Assembly

Floppy Assembly Removal

Steps for removing the floppy disk drive assembly.

Mechanical Parts & Removal - CPU Board

CPU Board Removal

Steps for removing the CPU board.

Mechanical Parts & Removal - Main Board

Main Board Removal

Steps for removing the main board.

Mechanical Parts & Removal - Power Supply

Power Supply Assembly Removal

Steps for removing the power supply assembly.

Mechanical Parts & Removal - Front Panel

Front Panel Assembly Removal

Steps for removing the front panel assembly.

Mechanical Parts & Removal - Rear Panel

Rear Panel Assembly Removal

Steps for removing the rear panel assembly.

Mechanical Parts & Removal - Assembly Notes

Assembly Notes

Notes for reassembling components like fan, floppy, front panel, and printer.

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