Diamond Audio DAST12 소유자 매뉴얼 - 페이지 9

{카테고리_이름} Diamond Audio DAST12에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Diamond Audio DAST12 13 페이지. Powered active spare tire subwoofer

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TROUBLESHOOTING

If you experience operation or performance problems with this product, compare

your installation with the electrical wiring diagram on the previous pages. If problems

persist,read the following troubleshooting tips which may help eliminate the problems.

S Y MP T O M

A m p lifier w ill n o t

p o w er u p .

P ro tec tio n L E D

c o m es o n w h en

am p lifier is

p o w ered u p

No o u tp u t.

L o w o u tp u t.

H ig h h iss in th e

so u n d .

S q u ealin g n o ise

is p resen t.

D isto rted so u n d .

A m p lifier g ets

v ery h o t.

E n g in e n o ise

(static ty p e)

E n g in e n o ise

(altern ato r w h in e)

P O S S IB L E R E ME D Y

Check to make sure you have a good ground connection.

Check that there is at least 12v on the battery (+) terminal

Check that the Remote Input (Turn-On) has at least 10VDC.

Check that the green power LED is lit

Check all fuse, replace if necessary.

Make sure that the Protection LED is not illuminated. If it is lit, shut off

the ampliﬁer brieﬂy, and then Power Cycle (reset).

Turn down the volume control on the head unit to prevent overdriving

the input speaker leads,

Try Power cycling (reset) the ampliﬁer. If the Protection LED still comes

on, then the ampliﬁer is faulty and needs servicing

Check that all fuses are OK.

Check that the power light in on

Check that unit is properly grounded.

Check that the Remote Input (Turn-On) has at least 10VDC.

Check that the input signal connections are plugged in properly.

Readjust the Input Gain Control.

Check the Crossover Control settings, possibly try a higher frequency.

Disconnect all RCA inputs to the power sub's control panel. If the hiss

disappears, then plug in the component driving the ampliﬁer and unplug its

inputs. If the hiss disappears at this point, go on until the faulty/noisy

component is found.

Reset Input Gain. It is best to set the subwoofers input level control as low as

possible. The best subjective signal-to-noise ratio is achieved in this manner.

Try to set the head unit as high as possible (without distortion) and the

subwoofer input level as low as possible.

Check for improperly grounded RCA interconnects. Or possible "blown"

signal ground from headunit. (Some headunits are notorious for this!)

Check that the Input Gain control is set to match the signal level of the head

unit. Always try to set the Input Gain on the subwoofer as low possible. Input

gain is NOT power output!! Check that all crossover frequencies are properly

set.

Readjust the Input Gain Control.

Make sure to NOT use CCA power wire as it will cause these issues alsofrequency.

This is usually caused by poor quality RCA cables, which can pick up

radiated noise. Use only the best quality cables, and route them away

from power cables.

Check that the RCA grounds are not shorted to the vehicle chassis

Check that the head unit is properly grounded.