Bedienungsanleitung Blaupunkt va 275 (Seite 7 von 57) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Polnisch, Türkisch, Schwedisch, Finnisch)

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VA 275

Installing the jack-plug cable

Please use our 5 m (16.4 ft.) jack-plug cable (Or-

der No. 7 607 001 525) to make the connection.

A special feature is that it has its own On/Off

switch.

Switch position is OFF (•):

During installation and de-installation and when

no AF source is connected.

Switch position is ON (I / II):

Only after an AF source has been connected.

Caution:

When making the connection, always set the vol-

ume control to minimum and switch off the ampli-

ﬁ er.

LEVEL control

The LEVEL control is used to adjust the input sensitivity

of the power ampliﬁ er to the output voltage of your car

sound system preampliﬁ er output.

The adjustment range is from 0.3 V to 8 V.

If a car sound system of a third party manufacturer is

connected, the input sensitivity must be adjusted cor-

responding to the manufacturer data.

A few important explanations in this context:

By turning the control clockwise, the input sensitivity of

the ampliﬁ er and, therefore, also the volume increases.

However, this is not a volume control; no further ampli-

ﬁ er output can be achieved in the end position, even if it

may sound like that at the beginning. The system merely

increases the volume faster if the volume control of the

car sound system is turned up.

Loudspeaker connections

(If the ampliﬁ er is to be jumpered, continue with the sec-

tion "Bridged loudspeaker connections" at this point).

As with every audio component, the correct polarisa-

tion of ampliﬁ er and loudspeakers is of essentially

importance for a good bass response. For this reason,

ensure that the positive (+) connection of the ampliﬁ er

is connected with the positive connection (+) of the

loudspeaker; the same applies to the negative (-) con-

nections. In addition, the left ampliﬁ er channel must

be connected with the left loudspeaker and the right

ampliﬁ er channel with the right loudspeaker.

Bridged loudspeaker connections

The VA ampliﬁ er can also be bridged for a mono conﬁ gu-

ration. This allows the ampliﬁ er to be used for one or

several subwoofers or mid-range drivers. In this conﬁ gu-

ration, the ampliﬁ er combines the right and left channel

to a single-channel output (mono output).

Plus / minus connection

The cross section of the plus and minus cable may

not be less than 6 mm

(5 A.W.G.).

- Route commercially available plus cables to the bat-

tery and connect via fuse holder.

- Use cable glands for holes with sharp edges.

- Securely fasten commercially available minus cables

to a noise-free earth point (chassis screw, chassis

metal) (not to the minus pole of the battery).

- Scrap the contact surfaces of the earth point until

they are bright and grease with graphite grease.

Integrated fuses (FUSE)

The fuses integrated in the ampliﬁ er (FUSE) protect the

power ampliﬁ er and the entire electrical system in case

of an error. If a replacement fuse is used, never bridge

fuses or replace them with a type with higher current.

Connection examples

Connection of the voltage supply ..................ﬁ g. 2

Connection to car sound system

with cinch output ..........................................ﬁ g. 3

Loudspeaker connections ............................ﬁ g. 4/5

HI INPUT ........................................................ﬁ g. 6

Direct Aux Input.............................................ﬁ g. 7

+12V

Remote connection of the ampliﬁ er with switchable +12 V

voltage source.

This allows the ampliﬁ er to be switched on and off using

the on/off-switch of the radio device.

High-level inputs

The ampliﬁ er is equipped with high-level inputs to permit

connection to radios without preamp outputs (Fig. 6).

This enables direct connection to be made to the radio’s

loudspeaker output.

Direct Aux Input Connection

Connection options if the car radio has no AUX

input or if the AUX input is already connected

You can directly connect various AF sources (such

as an MP3 player or mobile navigation system) via

a 3.5 mm (0,35") jack plug optionally to the Direct

Aux Input. All signal sources will then be heard si-

multaneously and their volume must be adjusted

on the respective source device.

Note:

All AF sources must be set to Off during installa-

tion and connection!

VA_275_0108.indd 7VA_275_0108.indd 7 25.01.2008 11:00:19 Uhr25.01.2008 11:00:19 Uhr

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