Why is the alarm not sounding on my Philips M3921A Monitor?
If the audible alarm on your Philips monitor isn't working: * Verify the alarm volume setting in the Alarm/Limits menu, and test the alarm tone by pressing the volume button while the alarm volume setting is displayed. * Ensure that the speaker cable is connected to the Main PCB. * If the problem persists, replace the speaker assembly. * If the problem continues, replace the Main PCB.
General| Model | M3921A |
|---|---|
| Display Size | 19 inches |
| Resolution | 1280 x 1024 pixels |
| Aspect Ratio | 5:4 |
| Response Time | 5 ms |
| Brightness | 250 cd/m² |
| Panel Type | TN |
| Input Connectors | VGA, DVI |
| Device Type | Monitor |
Provides general information about the service manual for A1 and A3 patient monitors.
Details the purpose, function, and measurement parameters of the A1 and A3 patient monitors.
Describes the optional, standalone printer designed for use with the A1 patient monitor.
Lists other documents relevant for understanding monitor operation and accessories.
Instructions for cleaning the patient monitor and its accessories safely and effectively.
Outlines required periodic checks for safety, functionality, and performance verification.
Details battery charging procedures, performance testing, and conditioning for optimal capacity.
Provides guidance on proper disposal and recycling of batteries and device components.
Overview of the tests used for performance verification after repairs or during routine maintenance.
A map showing required tests based on different service events and situations.
List of test equipment required for performing performance verification procedures.
Covers battery, power-on, hardware, software, and general operation tests.
Details procedures for ground integrity and electrical leakage safety tests.
Explains configuring power-on settings and obtaining service-related information via Diagnostic Mode.
Allows authorized users to create power-up defaults for monitor settings.
Provides access to test and system info like Error Codes, System Information, and NiBP Test.
Procedure to reset monitor settings to factory defaults, clearing trend memory.
Explains how to troubleshoot monitor problems and use this section effectively.
Specifies that only qualified service personnel should perform repairs.
Defines the supported replacement level as PCB and major subassemblies.
Covers power, error messages, buttons/wheel, display/tones, and operational performance issues.
Overview of the disassembly process and lists the necessary tools for component removal.
Step-by-step instructions for disassembling the A1 monitor's various assemblies.
Step-by-step instructions for disassembling the A3 monitor's various assemblies.
Lists spare parts with part numbers, item numbers, and page references for disassembly.
Identifies a kit containing small parts and hardware like screws and fuses.
Provides exploded view drawings for A1 and A3 monitor top-level assemblies.
Details parts related to the front case assembly for A1 and A3 models.
Details parts related to the rear case assembly for A1 and A3 models.
Lists parts and configurations for the Main PCB assembly for A1 and A3 models.
Lists part numbers for power supply assemblies and power cords for A1 and A3 models.
Provides part numbers for exchange units of A1 and A3 patient monitors.
Provides guidelines for safely shipping the monitor, including RGA number requirements.
Details procedures for repacking the monitor in its original or a different carton.
Advises on safe connection practices for PCs and other devices to the RS-232 port.
Explains RS-232 pinouts, cable connections, and the Nurse Call signal functionality.
Outlines the purpose and flexibility of the training program for technical personnel.
Describes training paths for preventative maintenance only and phone support/service.
Lists essential and optional materials needed to complete the training program.
Provides a high-level overview of the A1 and A3 monitors, their features, and common use cases.
Summarizes monitor support methods, including unit exchange and bench repair.
Explains the operational theory of major functional modules of the monitor.
Provides practical, hands-on guidance for troubleshooting common monitor failures.
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