Med-tronic Physio-Control LIFEPAK 20 LP20 Defibrillator Louder Speaker Assembly

► Brief Introduction

The Med-tronic Physio-Control LIFEPAK 20(LP20) defibrillator louder speaker assembly is used to deliver device tones and voice prompts, including warnings and alarms. The OEM Speaker is a small, compact, low-profile speaker capable of producing a 1 W output with a frequency response from 300 to 7000 Hz. The input to the speaker is from the audio power amp in the System Control PCB. The speaker is mounted directly on the defibrillator front case and the speaker wire harness plugs into the Speaker Harness Extension Cable.

► Features

The defibrillator speaker assembly is designed to emit loud, clear sound to aid rescuers in performing cardiopulmonary resuscitation (CPR) and defibrillation on a patient successfully. The LIFEPAK 20 defibrillator speaker assembly comprises a speaker driver and a speaker cone. The speaker driver generates audio signals, which the speaker cone converts into audible sound.

The LIFEPAK 20 defibrillator speaker driver receives the audio signals from the unit's circuitry, which are converted into vibrations by the speaker driver. These vibrations are amplified by the speaker cone to produce higher volume sound.

The LIFEPAK 20 defibrillator speaker driver consists of a permanent magnet, a voice coil, a diaphragm, and a suspension system. The magnetic field produced by the magnet interacts with the current flowing through the voice coil, causing the diaphragm to vibrate. The suspension system holds the diaphragm in place and allows it to move freely in response to the audio signals.

► Specification

► Speaker Assembly Removal

1. Disconnect the speaker cable from the Speaker Harness Extension Cable connector.
2. Remove two screws from the speaker mounting bracket and remove the speaker mounting bracket from the front case.
3. Remove the Speaker Assembly from the front case.

► Speaker Assembly Installation

1. Fit the Speaker Assembly into the front case and position cable at the 2:00 position, refer to the graphic at the left.
2. Place the speaker mounting bracket over the foam spacer and install screws.
3. Connect the speaker cable to the Speaker Harness Extension Cable connector. Refer to the Speaker Harness Extension Cable Removal and Installation for more information on the extension cable.
4. Install the front case.
5. Install the top case.
6. Install the Battery.
7. Review the labels parts list and install new labels.

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