Precaution, Fuse replacement – Sony XM-430 Manuel d'utilisation

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Precaution

• This unit is designed for negative ground 12 V

DC operation only.

• Use speakers with an impedance of 2 to 8 ohms.

(4 to 8 ohms when used as a bridging amplifier)

• Do not connect any active speakers (with built-

in amplifiers) to the speaker terminals of the
unit. Doing so many damage the active
speakers.

• Avoid installing the unit where;

— it would be subject to high temperatures such

as from direct sunlight or hot air from the
heater

— it would be exposed to rain or moisture
— it would be subject to dust or dirt.

• If your car is parked in direct sunlight and there

is a considerable rise in temperature inside the
car, allow the unit to cool down before use.

>

When installing the unit horizontally, be sure

not to cover the fins with the floor carpet etc.

>

If this unit is placed too close to the car radio,

interference may occur. In this case, relocate the
amplifier away from the car radio.

• If no power is being supplied to the cassette

player or tuner, check the connections.

• This power amplifier employs a protection

circuit' to protect the transistors and speakers if
the amplifier malfunctions. Do not attempt to
test the protection circuits by covering the heat
sink or connecting improper loads.

' Do not use the unit on a weak battery as its

optimum performance depends on a good
power supply.

I For safety reasons, keep your car audio volume

moderate so that you can still hear sounds
outside your car.

Fuse Replacement

If the fuse blows, check the power connection and
replace the fuse. If the fuse blows again after
replacement, there may be an internal
malfunction. In such a case, consult your nearest

Sony dealer.

Warning

When replacing the fuse, be sure to use one
matching the amperage stated above the fuse
holder. Never use a fuse with an amperage rating

exceeding the one supplied with the unit as this
could damage the unit.

»Protection circuit

This (wiplifier is provided with a protection circuit that

operates in the following cases:

when the unit is overheated

when a DC current is generated

when the speaker terminals are short circuited.

The color of the POWER/PROTECTOR indicator will

change from green to red, and the unit will shut down.

If this happens, turn off the connected equipment, take out the

cassette tape or disc, and determine the cause of the

malfunction. If the amplifier has overheated, wait until the

unit cools down before use.

POWER/PROTECTOR indicator

If you have any questions or problems concerning
your unit that are not covered in this manual,
please consult your nearest Sony dealer.

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