Rockford Fosgate PUNCH360, PUNCH500, PUNCH250, PUNCH800 manual Engine Noise, Using high level, Inputs

Page 27

 

 

 

TROUBLE-S

 

 

 

 

 

 

H

 

 

 

 

 

 

O

 

 

 

 

 

 

O

 

 

 

 

 

 

T

 

 

 

 

 

 

I

 

 

 

 

 

 

N

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

Symptom

Diagnosis

Remedy

 

 

 

 

 

 

 

Amplifier Noise

Voltage spike from remote

Use a different 12 volt source for

(Turn-on Pop)

turn-on lead is entering

REM lead of amplifier (i.e., battery

 

through REM input terminal.

direct). If noise is eliminated, use a

 

 

relay to isolate amplifier from noisy

 

 

turn-on output.

 

 

 

Engine Noise

Noise is radiating into RCA

Check connections, run the RCA

signal cable.

cables on a different route away

 

 

 

from sources of high current.

 

 

 

 

Bad component in the signal

Check connections, bypass addi-

 

chain.

tional components (crossovers and

 

 

equalizers) between the source unit

 

 

and the amplifier. Connect one

 

 

component at a time to determine

 

 

the culprit. Repair or replace com-

 

 

ponents as necessary.

 

 

 

 

 

 

 

 

Noise is radiating into speaker

Disconnect existing speakers and

 

cables.

connect a test speaker to the output

 

 

terminals of the amplifier. If noise is

 

 

gone, reroute the speaker cables

 

 

away from sources of high voltage.

 

 

 

 

Multiple grounds in the

Check ground connections and

 

audio system.

connect amplifiers, signal proces-

 

 

sors, and other components to a

 

 

central location or try a different

 

 

grounding point on the chassis.

 

 

 

 

Ground loop between source

Check connections, disconnect

 

unit and antenna.

antenna from source unit. If noise is

 

 

gone, install an antenna ground

 

 

loop isolator.

 

 

 

Engine Noise when

TOPAZ input circuitry (in Rock-

Supply reference ground to the

using high level

ford amps) or floating input

TOPAZ input circuit (or floating in-

inputs

circuitry (in non-Rockford

put circuit in non-Rockford amps).

 

amps) does not have refer-

Connect shield of RCA input from

 

ence to “chassis ground.” This

auxiliary amp to chassis ground of

 

noise, if any, occurs at the

radio. An alternative method is to

 

auxiliary amplifier whose in-

connect the RCA shield to the

 

puts are fed from the pass-

amplifier's power ground terminal.

 

thru output of the first amp.

 

 

 

 

 

 

 

 

 

 

 

 

• If noise persists, see your Authorized Rockford Fosgate Dealer.

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Contents Punch Punch 100PUNCH 150 Punch 250PUNCH 360 Punch 500 Punch 12dB/octaveButterworth 100dBA-weightedVolts Mono into a 4Ω LoadPractice Safe Sound T T I N G S T a R T E D TA B L E O F CO N T E N T ST R O D U C T I O N Punch Amplifier Accessory PackBalanced Inputs Punch 2-CHANNEL Amplifier Feature Chart100 150 250 360 500 800 # of Channels Stable Into each channel Stable into bridged/monoDimensions H x W x L 100 150 250 360 500 800 Adjustable Punch BassVariable Punch Bass 0dB ~+18dB @ 45Hz Adjustable Xover 80Hz Phase Warp 00 ~Punch Design FeaturesPage Installation Considerations Engine Compartment Mounting Mounting LocationTrunk Mounting Passenger Compartment MountingBattery and Charging Wiring the SystemAppropriate inline connectors. Use the section Page Using Passive Crossovers Freq Speaker Impedance Hertz Table of Crossover Component ValuesPunch 250 / Punch 360 / Punch InstallationPower Connections Punch 100 / Punch Power ConnectionsRCA Inputs High Level Inputs Power Connections PunchPunch Bass Operation Crossover OperationStereo Operation Punch 250 / Punch 360 / Punch 500 / Punch Stereo Operation Punch 100 / PunchImpedance for mono channel should be 4 Ω Mono OperationMono Operation Punch 250 / Punch 360 / Punch 500 / Punch Punch 100 / PunchRCA Input Stereo/Mono Operation Punch 100 / PunchWay System SY S T E M DI a G R a M SWay System Using single voice coil woofers Using dual voice coil woofers TR O U B L E S H O O T I N G Symptom Diagnosis RemedyUsing high level Engine NoiseInputs Listening to Loudspeakers Not Resistors Dynamic Power MeasurementsAbout the Dynamic Power Measurements MusicWhat is an Amplifier? Example of a Punch 200.2 PowerCubeInformation Cubed Limited WA R R a N T Y in F O R M AT I O N Page Terminal B+ Montaje en el MalateroMontaje en el Compartimento de Pasajeros InstalacionNo llevar a masa ningun cable de altavoz Terminal GNDTerminal REM Crossover en Full RangeInstallation Montage dans le coffreMontage dans lhabitacle Opération stéréo/mono tri mode + Anschluβ Im FahrzeugkofferraumAuf der Beifahrerseite EinbauGND Anschluβ REM AnschluβStereo/Mono Operation Terminale B+ cavo positivo InstallazioneNel Bagagliaio NellabitacoloTerminale REM Consenso di accensione Terminale GND cavo negativoRockford Fosgate Handcrafted in the United States of America
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