Medel Sonnet Operating instructions

Troubleshooting the Sonnet Processor
No sound / no start-up lights
Change the battery. If using disposable batteries, you may wish to try batteries from
a different pack if they were changed recently.
If using disposable batteries, check that the battery contacts are clean and free from
dust and dirt.
If using rechargeable batteries, check that the rechargeable battery adaptor is fitted
snugly to the base of the processor, and that the rechargeable battery clicks into
place. Check the charging process. Make sure the USB power cable is firmly plugged
into the charging unit and it is free from any damage to the cable.
Check that the battery pack cover slides all the way up to the base of the processor.
If not, gently wipe with a soft cloth or replace.
Check the coil cable is fully inserted into its socket. If the problem persists, change
the coil cable. Pull the old cable straight out without twisting, and push your new coil
cable in firmly. Repeat this process to attach your old headpiece to the new cable.
Use the speech processor test device to check that the Sonnet is transmitting sound.
This video shows how to use the speech processor test device.
Intermittent or reduced sound
Change the microphone cover if you have not done so in the last week or two. This
video shows how to change the microphone cover.
Check the coil cable is fully inserted into its socket. If the problem persists, change
the coil cable. Pull the old cable straight out without twisting, and push your new coil
cable in firmly. Repeat this process to attach your old headpiece to the new cable.

Worn-out battery. Change the battery. If using disposable batteries, you may wish to
try batteries from a different pack if they were changed recently.
Place into the drying box overnight.
Coil site feels tight or sore
Contact your clinic. A gentler magnet may be needed. A tight magnet can cause long
term skin problems, headaches and discomfort.
Batteries are not lasting as long as usual
Change the battery. If using disposable batteries, you may wish to try batteries from
a different pack.
If using rechargeable batteries, their charge will naturally decrease with time and
use. Contact your clinic for replacements.
I can’t slide the battery pack cover off
The tamper-resistant battery pack lock may be activated. Using a small screwdriver,
turn the screw to the vertical (unlocked) position.
I can’t pull out the cable from the coil
Some DL-coil covers have a safety lock. Lift off the DL-coil cover with your fingernail,
and then pull out the cable. This video shows show to change the cable with a DL
coil.
I’m worried my Sonnet might fall off my ear
Clear plastic safety loops (snuggies) are available. They loop around your ear and
hold onto the processor.
A safety line is available. It loops around the processor and clips to your clothing.
I can’t change the settings (e.g. volume / programme) via my fine tuner
anymore
The fine tuner may have lost its link with the Sonnet processor. It will need to be
synced again. Place the coil of the Sonnet processor on the MT button of the fine
tuner and turn the processor on. The fine tuner lights will blink to confirm a
successful sync.
Helpful resources
Sonnet user guide (pdf)
More support can be found on the Med-El troubleshooting web page