Installation Instructions

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Oticon A/S Kongebakken 9 DK-2765 Smørum www.oticon.com
Main [phone] Fax [phone] Denmark CVR-no. 42334219 1
Oticon Radio Model - Quick Installation Guide
Radio Model Name: ALD VHF Receiver module
The ALD Receiver module radio model is built consists of a radio IC and an audioprocessor, both mounted on a common flex PCB.
The radio IC provides low power 3,71 MHz magnetic 2-way communication and also FM VHF reception in 2 bands; 169-188 or 208-218MHz yielding 2 HW
variants. The frequency reference for both wireless systems in Amigo Star is a single crystal.
Other external components are attached to the PCB:
* An FM antenna is connected by hand soldering to pick up VHF signals for the radio IC.
* A Coil is connected by SMT for the the magnetic data communication by the radio IC.
* A speaker is connected by hand soldering to the PCB for audio output to the user through a thin tube.
* Battery springs are hand soldered to the PCB to provide power to the device.