Справочник Пользователя для a/d/s/ PQ40.2

troubleshooting

no output

low or no remote turn-on

check remote turn-on 

input

voltage output at amplifier 
and correct as needed

fuse blown

check power wire integrity 
and reversed polarity, repair
as needed and replace fuse

power wires not connected 

check power wire and 

ground connections and

repair or replace as needed

audio input not connected

check input connections and 

or no output from source 

signal integrity, repair or    
replace as needed

speaker wires not connected 

check speaker wires and 
repair or replace as needed

audio cycles on and off

speakers are blown 

check system with known
working speaker and repair 
or replace speakers as 
needed

thermal protection engages 

make sure there is proper

when amplifier heatsink 

ventilation for amplifier and 

temperature exceeds 85° C 

improve ventilation as 
needed

loose or poor audio input 

check input connections and
repair or replace as needed

distorted output 

amplifier level sensitivity 

reset gain referring to the 

set too high; exceeding

tuning section of the manual

maximum output

for detailed instructions  

capability of amplifier

impedance load to amplifier

check speaker impedance  

too low

load if below 2

 stereo or 

4   mono rewire speakers to
achieve a higher impedance

shorted speaker wires 

check speaker wire
connections and repair or    
replace as needed

speaker not connected to 

check speaker wiring and 

amplifier properly

repair or replace as needed
refer to the installation quick 
reference section of this 
manual for detailed
instructions

internal crossover not set 

reset crossovers referring to  

properly

the for speaker multi-cross™ 

crossover configuration 

section of this manual

speakers are blown 

check system with known
working speakers and repair 
or replace as needed

system planning

Proper system planning is the best way to maximize your PowerPlate’s

TM 

performance. By planning your

installation carefully you can avoid situations where the performance or the reliability of your system is
compromised. Your authorized a/d/s/ dealer has been trained to maximize your system’s sonic potential.
Your a/d/s/ dealer is a valuable resource in helping you with your system design and installation.

Each  channel  of  your  PowerPlate  can
easily drive 2 Ohm speaker loads when
used in the stereo mode. When a channel-
pair  is  bridged,  the  re c o m m e n d e d
minimum load impedance is 4 Ohm. Do
not  use  speakers  or  combinations  of
speakers that result in less than a 4 Ohm
load when in bridged mode or 2 Ohm in
stereo mode.

Most speakers designed for car audio
operation have in 4 Ohm impedance.
Connecting two such speakers in parallel
will result in a 2 Ohm impedance load as
seen  by  the  amplifier.  Some  a/d/s/
subwoofer models feature a dual 4 Ohm
voice coil design. Connecting these voice
coils in parallel will result in a 2 Ohm
nominal  impedance  which  is  not
recommended  for  use  with  bridged
channels of your PowerPlate

TM

.

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