Welch Allyn 53 Service Manual

Returning Products Overview
Service Manual 12 Vital Signs Monitor Series 300
Returning Products
To return a product for service, contact Welch Allyn Technical Support and request a Return
Material Authorization (RMA) number.
When requesting an RMA, please have the following information available:
• Product name, model number, and serial number
• A complete return shipping address, including a contact name and phone number;
include any special shipping instructions
• A purchase-order number or credit-card number if the product is not covered by
warranty
• A full description of the problem or service request
To ship the unit, please observe these packing guidelines:
• Remove from the package all hoses, connectors, cables, sensors, power cords, and
other ancillary products and equipment, except those items that might be associated
with the problem.
• Use the original shipping carton and packing materials, or as close an approximation
as possible.
• Include a packing list.
• Write the Welch Allyn RMA number with the Welch Allyn address on the outside of
the shipping carton.
United States federal regulations require that any unit received by Factory Service must be
free from blood-borne pathogens before processing. All incoming products are cleaned as
well as possible, but products that cannot be effectively cleaned cannot be accepted for
repair. Please thoroughly clean all organic residues from the product before shipment. This
will ensure safe receipt, processing and repair, and will help expedite the return of your
monitor.
Welch Allyn does not accept returned products without an RMA.

Welch Allyn 53 Specifications

General

Brand	Welch Allyn
Model	53
Category	Medical Equipment
Language	English

Summary

Safety Summary

General Safety Considerations

Key safety points for monitor operation, placement, and handling.

Electrostatic Discharge (ESD)

Guidelines and precautions for handling static-sensitive components to prevent damage.

Symbols

Explanation of symbols used in the monitor and documentation.

Front Panel Controls

Description of the functions of the monitor's front panel buttons.

Front Panel Displays and Indicators

Explanation of the monitor's display elements and indicator lights.

Overview

Purpose and Scope

Defines the manual's purpose, scope, and intended audience.

Technical Support Services

Lists the technical support services offered by Welch Allyn.

Returning Products

Outlines the procedure and requirements for returning products for service.

Product Configurations

Details the different model numbers and their monitoring parameter configurations.

Recommended Service Intervals

Specifies recommended intervals and actions for monitor maintenance.

Service Options

Describes warranty and non-warranty service options and procedures.

Related Documents

Lists other relevant documentation for the Vital Signs Monitor Series 300.

Service Menu

Explains how to access and navigate the monitor's service menu.

Functional Verification

Functional Verification Overview

Describes the procedure for a complete functional test.

Equipment Required

Lists all necessary equipment for functional verification.

System/Power

Verifies monitor power-on, self-test, and battery.

NIBP Verification

Tests NIBP module accuracy and performance.

Printer Test

Verifies printer functionality and output.

SpO2 Verification

Tests SpO2 sensor and monitor function.

Temperature Verification

Verifies temperature measurement accuracy.

Nurse Call Relay Verification

Tests Nurse Call relay functionality.

Battery Verification

Assesses battery charging and discharge.

Patient Isolation Test

Verifies electrical safety and patient isolation.

Checklist and Test Results Report Form

Form for recording verification test results.

Troubleshooting and Repair

Troubleshooting Chart

Lists symptoms, possible causes, and suggested actions for common errors.

Requirements for Module-level Repair and Replacement

Outlines requirements and procedures for replacing monitor components.

NIBP Characterization

Details the process for characterizing the NIBP module after component replacement.

Welch Allyn Monitor Service Utility

Introduces and explains the setup of the service utility software.

Disassembly Procedure

Procedures Overview

Introduces the monitor disassembly and board removal steps.

Screws

Details screw types, locations, and recommended torque specifications.

Connectors

Describes different connector types and how to connect/disconnect them.

Main Board Connectors

Lists connectors on the main board and their connections.

Display Board Connector

Details the connector on the display board.

Printer Board Connectors

Lists connectors on the printer board.

SpO2 Board Connectors

Details connectors on the SpO2 board.

NIBP Board Connectors

Lists connectors on the NIBP board.

Temperature Board Connectors

Details connectors on the temperature board.

Remove and Disconnect the Battery

Step-by-step guide to safely remove and disconnect the monitor battery.

Separate the Front and Rear Chassis

Instructions for separating the monitor's front and rear chassis.

Disassemble the Front Chassis Assembly

Steps to disassemble the front chassis, including display and keypad.

Remove the LCD Display from the Main Board

Procedure for removing the LCD display module from the main board.

Remove the Main Board from the Rear Chassis Assembly

Instructions for removing the main board from the rear chassis.

Disassemble and Remove the NIBP Assembly

Procedure for removing the NIBP assembly components.

Remove and Disassemble the Printer Assembly

Steps for removing and disassembling the printer assembly.

Disassemble the Temperature Module

Guide for disassembling the temperature module.

Disassemble the SpO2 Assembly

Instructions for disassembling the SpO2 assembly.

Replacement Parts

Board Assemblies & Modules

Lists available board assemblies and modules for standard configuration.

Front Case Components

Lists replacement parts for the front case assembly.

Rear Case Components

Lists replacement parts for the rear case assembly.

Battery Assembly

Lists replacement battery and related parts.

SpO2 Option Parts

Lists replacement parts specific to the SpO2 option.

Temperature Option Parts

Lists replacement parts specific to the Temperature option.

Printer Option Parts

Lists replacement parts specific to the Printer option.

Labels

Lists various labels for the monitor, including error codes and safety.