20
XOMAX
XM-RSU255BT
EN
Topic:
Common solutions
Describtion of the
problem
Cause and solution
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.
Radio stations are
lost:
As soon as the unit
will be turned off all
the stored stations
and user's settings will
be lost.
This problem is caused due to a wrong connection of the ISO
cable.
Please interchange the cables for ignition plus and for steady
plus.
Caution:
If these wires have fuses, the latter should be interchanged as
well.
Common solutions
The following advices are generally valid and refer to diverse Xomax models with
the similar characteristics. Please note that some articles may refer not to your
model exactly and may contain the describtion of features and functions that your
model does not support.
