CDD Ural Concert User Manual download pdf (Page 10)

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Power amplifier input connector (SPEAKER)

In order to connect

acoustic systems (AS) to the

receiver, use the cable with the

power amplifier input connector

counterpart included in the

delivery set.

In order to reduce power

loss at the AS circuit resistance,

use the line of increased section

and try to minimize its length.

Minimum permissible acoustic

systems resistance shall be 4

Ohms.

When connecting the AS it

is desirable to observe the power

amplifier’s signal phase (polarity),

to this effect each “holdout” line of each 6 cable line pairs is marked by a black strip.

In case phasing errors are found (after the receiver’s installation is completed),

correct the phase (Menu->Sound->Invertor).

Optionally (after the system’s installation is completed) it is possible to change

the channel switching, i. e. its numbers (Menu->Sound->Commutator).

When installing multilane (crossover) audio system, it is recommended to use

the receiver’s embedded crossover instead of external passive junction filters (Menu-

>Sound->Crossover). This will improve audio quality and increase the efficiency of

power amplifier use (see Recommendations on acoustic performance section).

Attention!

Power amplifier cables of the fifth and sixth channels of receivers with

C00xxxx serial numbers have erroneous polarity marking. When connecting

AS, it is necessary to exchange the lines in each pair of brown (fifth channel)

and green (sixth channel) lines.

Receiver aerial connector (ANT)

Connect the standard automobile aerial cable connector to the receiver’s ANT

connector. Make sure that the connectors make tightly, are not dirty or oxidized.

In spite of taking complex measures on screening of the receiver’s digital part, it

is the source of unwanted signal in the radio reception exclusive band, that is why

operation it is not recommended to work with standard types of inter-compartment

active aerials. If possible, use an external whip aerial fixed on the car’s roof or boot.

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CDD Ural Concert User Manual Page 10