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Oxford Medelec Synergy Mobile User Manual

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Synergy Mobile
Medelec
®
Multimedia EMG / EP
Workshop Manual
034W003 Issue A
OXFR
Issue A May 1998

Table of Contents

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Oxford Medelec Synergy Mobile Specifications

General IconGeneral
BrandOxford
ModelMedelec Synergy Mobile
CategoryMedical Equipment
LanguageEnglish

Summary

Introduction

Technical Specification

Amplifiers

Details specifications for amplifier channels, headbox connections, cable length, performance metrics, impedance, calibration, sensitivity, and filters.

A to D Conversion

Specifies the resolution and sampling rates for headbox channels.

Data Storage

Describes specifications for Hard Disk, Floppy Diskette, and CD-ROM drives.

Electrical Stimulator

Details specifications for voltage/current output, repetition rates, duration, and stimulus modes.

Auditory Stimulator

Outlines parameters for auditory stimuli, including modes, presentation, polarity, masking, and intensity.

Visual Stimulator

Describes visual stimulus patterns, fields, sizes, fixation, contrast, and frame rate.

PC Tower

Lists specifications for processor, cache, memory, disk controllers, ports, and graphics.

DSP Card

Details the type, interface, processor, and memory of the DSP card.

Graphics Card (Option)

Specifies card type, resolution, colours, and memory for optional graphics cards.

Display (Options)

Notes monitor types and suitability for trolley mounting.

Network Card (Option)

Mentions the type of network card currently supplied.

Isolation transformer / Power Supply

Details power operation, voltage selection, and DC supplies provided.

Software

Lists standard software, test options, and language support features.

Size and Weight

Provides system and trolley dimensions and weight.

Operating Conditions

Specifies the temperature and humidity ranges for operation.

Safety Standards

Lists compliance with IEC and UL safety standards.

Quality Standards

Details CE Mark compliance and approved Quality Management Systems.

Installation and Operation

Operating Restrictions: Cautions and Warnings

Outlines essential cautions and warnings for safe operation and maintenance.

Warnings

Provides critical warnings regarding internal operations, fuse ratings, and equipment handling.

Connecting other electrical equipment

Details precautions for connecting external equipment to the system.

Disclaimer

Oxford Instruments' responsibility disclaimer for safety and reliability.

Signal Cables

Specifies requirements for using screened cables for auxiliary connections.

Installation

Covers inspection, mains supply, voltage selectors, and fuses for installation.

Routine Maintenance

Provides guidelines for cleaning the unit and trolley.

Controls

Explains the functions of volume, trigger, sensitivity, sweep, acquire, and stimulus controls.

PC Tower rear Connector Panel

Details pin-outs for various PC tower connectors like printer, keyboard, and serial ports.

Peripheral Connectors

Shows pin-outs for headbox, remote jackbox, and EMG stimulus probe connectors.

Technical Overview

The PC Motherboard

Describes the Pentium processor, memory, IDE controllers, serial/parallel ports, and PS/2 connectors.

The DSP Sub-System

Explains the DSP card and daughter module functions and interfaces.

The Control Panel & Electrical Stimulators

Details control functions and electrical stimulator operations.

The Evoked Potential Stimulators

Covers auditory and visual stimulators, including their functionality and output signals.

The Two Channel Headbox

Explains the headbox assembly, control board, and pre-amplifier board functions.

The 5 Channel Headbox

Describes the headbox construction, control, electrode, and amplifier modules.

The 10 Channel Headbox

Outlines the similarities and differences of the 10-channel headbox compared to the 5-channel.

Patient Safety Checks

Equipment Required

Lists the necessary test equipment for performing safety checks.

Initial Checks

Covers initial system setup, power-on checks, and display verification.

Signal Input

Guides on selecting test protocols and setting up acquisition channels.

EMG Stimulus Output

Details checks for stimulus probe polarity and output.

Earth Leakage Current Tests

Provides steps for testing earth leakage current under normal and fault conditions.

Patient Leakage Current Tests

Outlines procedures for measuring patient leakage current under various conditions.

Patient Auxiliary Current (Headbox)

Describes tests for auxiliary current from headbox inputs.

Patient Auxiliary Current (Stim A)

Details tests for auxiliary current from Stim A output sockets.

Patient Auxiliary Current (Stim B)

Details tests for auxiliary current from Stim B output sockets.

EMG Safety Checks

Covers checks for stimulus fail conditions, overcurrent, and mark/space failures.

Audiometric Headphone Cut-Off Checks

Guides on verifying the audiometric headphone cut-off function.

System Functional Checks

Equipment Required

Lists the test equipment needed for functional checks.

Initial Checks

Covers initial system setup, power-on checks, and display verification.

System Checks

Details checks for time, date, keyboard language, and regional settings.

CD-ROM Drive Checks

Guides on testing CD-ROM drive functionality and disk access.

2 Channel Headbox Checks

Outlines functional checks for the 2-channel headbox.

5 and 10 Channel Headbox Checks

Details functional checks for 5 and 10-channel headboxes.

Trigger / Gain / Sweep Control Checks

Explains how to test trigger, gain, and sweep control functions.

Amp Cal Mode

Guides on checking the amplifier calibration mode waveform.

Electrode Impedance Mode

Details how to test the electrode impedance mode functionality.

Temperature Probe Checks

Covers testing the temperature probe's accuracy and response.

Control Panel Internal EMG Stimulator Checks

Guides on checking the internal EMG stimulator controls and output.

EMG Stimulator Probe Checks

Outlines functional checks for EMG stimulus probes.

External Speaker Checks

Details how to verify the external speaker output.

Footswitch Checks

Guides on testing the functionality of the footswitch assembly.

Parallel & Serial Port Checks

Covers testing parallel and serial port connectivity.

Networking Checks

Details procedures for checking network connectivity.

EP Stim Checks

Guides on testing Visual and Audiometric EP stimulus functions.

Firmware History

Introduction

Introduces the chapter listing programmed hardware devices and firmware versions.

Firmware

Lists firmware versions for headbox controllers, ADC, EP stimulator, DSP, and EMG stimulator.

Fault Finding

Servicing

Removing Parts From Inside The Tower

Covers removal of the PC tower cover, power supply, and cooling duct.

Removing the Disk Drives

Details the process for removing hard disks and floppy disk drives.

Upgrading components on the motherboard

Guides on replacing the processor and adding memory modules.

Removing The PC Speaker

Explains how to remove the PC speaker assembly.

Removing The Isolation Transformer and Power Supply

Details the process for removing the power supply unit.

The Connection unit

Describes the connection unit and its switches for selecting output sources.

Customer Options and Spares

Hardware, Software, Spares and Options

Lists available hardware, software, and spare parts with part numbers.

Recommended Spares

Lists recommended service spares, including cables, knobs, and drives.