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Operating Instructions
English
Maintenance
Regularly check the technical safety of the SD tuner, e.g. for damage of the cables or the housing.
If it can be assumed that safe operation is no longer possible, the device must be turned off and precautions are to
be taken to ensure that it is not used unintentionally. Disconnect the car power system!
It can be assumed that safe operation is no longer possible if:
• the device is visibly damaged,
• if the appliance does not function for some reason, or
• following considerable stress during transportation.
Before cleaning the SD tuner or performing maintenance, the following safety instruction must be observed:
Live components may be exposed if the covering is opened or components are removed.
Prior to start of maintenance or repair works, the device must be disconnected from all voltage
sources.
Capacitors inside the device may still carry voltage even though they have been disconnected
from all voltage sources.
Only qualified experts familiar with the hazards involved and the relevant regulations may
perform repairs.
If it becomes necessary to replace a fuse, make sure that only fuses of the prescribed type and nominal current are
used (see „Technical Data“).
It is absolutely impermissible to repair fuses or to bridge the fuse holder.
•
When the power supply has been disconnected (disconnect ISO plug!) carefully remove the fuse from the fuse
holder next to the ISO plug.
• Replace it by a fuse of the same type.
• Only then can you re-connect the SD tuner to the electric on-board system.
• Should the fuse trigger again, have the SD tuner repaired in a specialised workshop.
Apart from this, the device does not need servicing. The outside should only be cleaned with a soft, dry cloth or a
brush.
Never use caustic cleaning agents or chemical solutions as the surface of the housing may be damaged.
