Poor radio recep-
tion:
The radio tuner nds
no broadcaster or the
reception is poor.
For problem-solving regarding the radio reception it is
important to know the type of the antenna of your vehicle.
Here are the possible solutions for each type of the antenna:
Type 1 – passive antenna:
We recommend you to substitude the existing antenna by the
larger and therefore more efcient one.
Shark n or rod antennas (under 5 cm) are denitely insuf-
cient.
Type 2 – active antenna:
The vehicle provides no current for the active antenna. In this
case a phantom power is required, which provides the active
antenna with the external power supply.
Type 3 – active antenna with diversity system:
The unit provides no current for the active antenna and has
no diversity support. For this type of antenna is required the
phantom power with an integrated diversity system.
Note:
A phantom power is not to be confused with an antenna
amplier, which is far less efcient.
The unit does not
turn on.
This problem is in most cases caused due to a wrong connec-
tion of the ISO cable.
Please review the pin assignments of the ISO plug and ISO
socket. Pay attention to the proper connection of the ignition-
and steady plus and correct the discrepancy if required.
Note:
Though the design of ISO port is standardized, it's pin
assigment is not and may vary. Thus in case of mismatch
of connections due to different pin assignments a simple
plug'n'play connection may lead to grievous errors.
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