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15) Trouble shooting
The receiver does not start
1. Check that the correct listening program is selected
on the hearing instrument.
2. Make sure the Receiver DT10 is correctly connected
to the hearing instrument's audio shoe. Also check
the connection between the audio shoe and the
hearing instrument.
3. Make sure all connecting surfaces are clean.
4. Check/replace the hearing instrument's battery.
5. Remember to press the push-button briefly to
switch the DT10 on.
Poor speech intelligibility
The distance between the transmitter and the receiver
may be too long. The range is around 50 feet
(15 meters).
The distance between the microphone and the talking
person may also be too long; move the microphone
closer to the talking person.
Try changing the channel/environment.
Poor range and interference
In some environments, such as in buildings with a lot of
concrete, iron or sheer metal structures, the range may
be reduced.
There may also be electronic equipment nearby causing
interference. Change the channel.
No sound
Check that the transmitter and the receiver are set to
the same channel.
Loud hissing noise
Check that the Comfort Digisystem units you are using
are paired together.
If Auto sleep is enabled, the Receiver DT10 goes into
sleep mode if there is no radio signal. But if another
radio signal (with the same frequency you are using) is
present, the Receiver DT10 might start again automa-
tically. This could cause a loud hissing noise and that's
why Auto sleep should be used with caution.
16) Service and warranty
Warranty extension
Comfort Audio Inc. warrants this product sold to the
first end user (buyer) against defects in materials or
workmanship for the time period and as set forth below.
Pursuant to this Limited Warranty, Comfort Audio will,
at its own option, either (a) repair the product or the
parts determined to be defective, using new or refurbis-
hed parts, or (b) provide you with a new, or at our
option, a refurbished unit. The repaired or exchanged
unit is under warranty for the remainder of the original
product's warranty period. The warranty does not in-
clude any other direct, indirect or consequential damage
or loss, or any third party damages or losses.
This Limited Warranty is for a period of two years from
the date of purchase as indicated by an original receipt
from a Comfort Audio authorized retailer, dispenser or
medical facility. Headphones and earphones have a
warranty of 30 days from purchase.
How to make a warranty claim
For warranty service, you must contact the Comfort
Audio Customer Service listed below to obtain an
RMA (Return Merchandise Authorization) number.
A description of the defect, your name, address and
telephone number is required.
Ship the product freight prepaid via UPS or its equiva-
lent, including a copy of the original purchase receipt,
any cables, earphones and base/charger unit, in its
original packaging or one that offers equal protection.
Insure your shipment for loss or damage. Comfort Audio
accepts no liability in case of damage or loss en route to
our offices.
This Limited Warranty does not cover
Damage from misuse, neglect or normal wear and tear.
Products that have been modified. Products purchased
or serviced outside the territory. If you purchased your
product outside the territory, see your retailer for war-
ranty information.
Product Registration
Please complete, sign and mail the Product Registra-
tion Card packed with your unit. It will make it easier to
contact you if it ever would be necessary.
Comfort Audio Inc.
350 South Northwest Hwy, Ste 300
Park Ridge, IL 60068 USA
To contact the Comfort Audio Customer Service,
call (847) 656 5450
or by e-mail usa@comfortaudio.com
Receiver DT10
12
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