C) Disassembly; Electric Connection - Renkforce RUCD-1804 Bedienungsanleitung

c) Disassembly

• Remove the front control panel.
• Carefully remove the plastic frame in the front of the system by bending it slightly to the outside and pulling it off
from the unit.
• Insert the two unlocking keys into the lateral slots in the installation frame until the device unlocks.
• Loosen the screw pin at the back of the device if required.
• Carefully pull out the radio with the unlocking keys from the installation frame.
• Remove all plug connections at the back of the unit.

9. Electric Connection

The electric connection should be made by a specialist.
To avoid short circuits and resulting damage to the device, the negative pole (ground) of the vehi-
cle 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.
You should only use a voltmeter or a diode test lamp for checking the voltage of the on-board
cables, as normal test lamps consume excessive currents and can thus damage the electronics
system of the car.
When laying the cables, make sure that they are not squeezed or scoured on sharp edges. Use
rubber grommets for the feed-though points.
The line towards the speakers must be a bifilar cable. Insulate any open connection points. Make
sure that the cables are not damaged by sharp edges.
Only use speakers with sufficient load capacity (see "Technical Data").
Observe that all speakers have the correct polarity - that is, that plus and minus marks match.
The connecting cables of the loudspeakers are usually coded: Some speaker manufacturers indi-
cate the (+) wire by means of an additional colour stripe, others use a corrugated cable for the (+)
terminal and a smooth one for the (-) terminal.
The system was designed for the operation at speaker impedances of at least 4 Ohm. Never con-
nect speakers with a lower impedance.
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