Alphard M450D Manual do Proprietário - Página 10

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8 . P O S S I B L E F A U L T S A N D T H E I R S O L U T I O N S

Alphard ampliﬁers are high-quality and technically perfect products. The problems often arise due to improper operation,

faulty connection of components or lack of power supply of the on-board network.

1) The ampliﬁer does not turn on.

Problem solution: Check all the contacts and the presence of the ampliﬁer 12 V at the terminals. Check whether the control

input of the ampliﬁer "Remote in" receives the positive potential of 12 V.

2) Power turns on, but goes into protection (security indicator lights up)

Problem solution: Check if there is a short circuit (fault) on the ampliﬁer output which is connected to the speakers or

subwoofers. Make sure that commutation of the coils of the subwoofer is correct. The rated resistance of the coils should not be

lower than the permissible rated load impedance of the ampliﬁer. Check the supply voltage of the ampliﬁer. It must be within the

range of 12-15 V for 12 V versions.

3) The ampliﬁer turns on but at a high volume it goes to protection. Problem solution: The ampliﬁer may lack power. Make sure

that the rated current of the generator and the battery capacity is enough to provide the ampliﬁer with the increased

consumption.

Check the ampliﬁer for overheating. Check the load resistance.

4) The ampliﬁer is turned on, but there is no sound from the speakers or subwoofer.

Problem solution: Check the connection of the ampliﬁer, the integrity of the interconnecting cable, HU, the speaker or the

subwoofer.

9 . B O X C O N T E N T

1. Monoblock – 1 pcs.

2. Owner's Manual – 1 pcs.

3. Warranty card – 1 pcs.

4. Mounting Kit – 1 pcs.

5. Remote control – 1 pcs.

1 0 . W A R R A N T Y A N D M A I N T E N A N C E .

Alphard products are warranted, under normal functioning conditions, for the period of time as set by the laws in

force, against defects concerning materials or their manufacturing. The warranty is valid from the date of purchase,

certiﬁed by receipt. The warranty is not valid if:

∙ the product is damaged by incidents, installations and/or improper use, or by any other causes not depending on

materials or manufacturing defects;

∙ the product is modiﬁed or tampered with by unauthorised people;

∙ its serial number has been altered or removed.

While the product is under warranty, defective parts will be repaired or replaced at the manufacturer's discretion. The

defective product, along with notiﬁcation about it, must be returned to the dealer from which it was purchased together

with the warranty certiﬁcate duly ﬁlled in,

warranty, it will be repaired at the current costs.

Alphard does not undertake any liability for damages due to transportation. Alphard does not take any responsibility

for: costs or loss of proﬁt due to the impossibility to use the product, other accidental or consequential costs, expenses or

damages suffered by the customer. Warranty according to laws in force. For more information visit the Alphard website.

The manufacturer reserves the right to change design and speciﬁcation without prior notice.

1 1 . I N F O R M A T I O N O N D I S P O S A L O F T H E E L E C T R I C A L A N D

E L E C T R O N I C E Q U I P M E N T ( F O R T H E E U R O P E A N C O U N T R I E S W I T H

S E P A R A T E W A S T E C O L L E C T I O N ) .

Items marked "crisscrossed wheeled bin" are not allowed to be disposed of together with usual household waste. These

electrical and electronic products should be disposed of in special reception centers, equipped for recycling such products and

components. For information about the location of the nearest disposal / recycling spot and the rules of delivery of waste please

contact your local municipal office. Recycling and proper disposal help protect the environment and prevent harmful effects on

health.

complete with the original packaging

http://alphard.audio

. If the product is no longer under