Electric Connection - Renkforce HEADUNIT CD-3994 Bedienungsanleitung

ENGLISH 
Version 0/07

7. Electric Connection

The electric connection should be done by a specialist.
To avoid short-circuits and resulting damages of the CD tuner, the negative pole (ground)
of the vehicle battery must be disconnected during connection.
Only connect the negative pole of the battery, when you have completely connected the
system and checked the connections.
If you want to test the voltage in on-board lines, only use a voltmeter or a diode test
lamp, since regular test lamps consume too much current and could damage the
electronic on-board system.
When laying the cables, make sure they are not bent or jammed or chafing at sharp
edges. Please use rubber bushings at the penetration spots.
The line towards the loudspeakers must be a bifilar cable. Insulate the open connections.
Make sure that no wires can be damaged by sharp edges.
Only use loudspeakers with a sufficient power rating (see "Technical Data").
Make sure that all loudspeakers have the correct polarity, i.e. the plus and minus signs
must match.
The connecting cables of the loudspeakers are usually coded: Some manufacturers
mark the (+) line with an additional colour band.
Others use a corrugated line for the (+) pole and a smooth one for the (-) pole.
The system was designed for the operation at loudspeaker impedances of at least 
Ohm.
Never connect loudspeakers with an inferior impedance.
In most vehicles the cables for the electric connection and the connection of the loudspeakers
have been laid directly to the installation recess.
If this is not the case, please make sure that any cables placed later are secured by the
respective on-board fuses (see vehicle operation manual).