Introduction To Acoustics Troubleshooting - Nokia E62 Service Manual

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Nokia Customer Care BB Troubleshooting and Manual Tuning Guide

Introduction to acoustics troubleshooting

Acoustics troubleshooting
Acoustics design ensures that the sound is detected correctly with a microphone and properly radiated to
the outside of the device by speaker(s). The acoustics of the phone includes three basic systems: earpiece,
Integrated Hands Free (IHF) and microphone.
The sound reproduced from the earpiece readiates through a single hole on the front cover (A-cover). The
sound reproduced from the IHF speakers radiates from the sound holes on the bottom of the lower block.
The hole of the microphone is located between the upper and the lower block, on the right side..
For a correct functionality of the phone, all sound holes must be always open. When the phone is used, care
must be taken not to close any of those holes with a hand or fingers. The phone should be dry and clean,
and no objects must be located in such a way that they close any of the holes.
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