SONNET audio processor
25
IMPORTANT
It is the hearing aid acoustician’s responsibility to customise the ear mould according to
standard hearing aid practice. The ear mould shall fulfil local hearing aid requirements,
especially with regard to biocompatibility. The acoustician shall make sure that the ear mould
optimally fits the anatomical shape of the ear canal and the earhook of the SONNET audio
processor.
The hearing aid acoustician is also responsible to inform the patient or parents/caregiver
about cleaning the ear mould to ensure optimal performance and avoid bacterial infections.
In cases of otitis media (especially with effusion) it is recommended to use the SONNET
without an ear mould, i.e. only use electrical stimulation to leave the outer ear canal open.
Your SONNET audio processor is shipped with a pin securing the earhook to the control unit.
To replace the earhook proceed as follows:
1. Remove the earhook pin by pushing it through the holes (see Fig. 17) using the tool
supplied with your SONNET kit, then grab it and pull it out completely.
2. To remove the earhook gently push it downwards (1), (2), separating it from the control
unit (see Fig. 18-1).
3. Attach the new earhook over the lip in the lower part of the control unit (3) and push
it gently upwards (4) until it snaps into place (see Fig. 18-2). Make sure that the new
earhook is of the same type (i.e. CI earhook or EAS earhook) as the replaced one.
4. Re-insert the earhook pin.
Fig. 17 How to remove the earhook pin
