Rockford Fosgate 250.2 Troubleshooting, Symptom Diagnosis Remedy, Amplifier does not turn on

Page 43

TROUBLESHOOTING

TROUBLE-S H O O T

I N G

Symptom

Diagnosis

Remedy

Amplifier does not turn on.

Voltage applied to the REM terminal of the

Check the alternator, battery, fuse, and

(Power LED is off)

amplifier is not between 10.5 and 15.5

wiring and repair as necessary. If the volt-

 

 

volts or there is no voltage present.

age is above 15.5 volts, have the electrical

 

 

 

system inspected by an authorized car

 

 

 

service center.

 

 

 

 

 

 

 

Voltage to the B+ terminal of the amplifier

Check the alternator, battery, fuse, and

 

 

is not between 10.5 and 15.5 volts or there

wiring and repair as necessary. If the volt-

 

 

is no voltage present.

age is above 15.5 volts, have the electrical

 

 

 

system inspected by an authorized car

 

 

 

service center.

 

 

 

 

 

 

 

Amplifier is not properly grounded.

Check wiring and repair as necessary.

 

 

 

 

Amplifier has no sound.

RCA Input from source unit is not connected

Check connections, substitute with known

(Power LED is on)

or not functioning properly.

working source and cables and repair or

 

 

 

replace as necessary.

 

 

 

 

 

 

 

When using the BLT, Balanced Line Input

Check connections, substitute with known

 

 

from BLT is not connected or not function-

working BLT and cables and repair or

 

 

ing properly.

replace as necessary.

 

 

 

 

 

 

 

Unbalanced/Balanced Line switch is not

Check switch position and correct as neces-

 

 

selected for corresponding input.

sary.

 

 

 

 

 

 

 

Amplifier is in E-Z Bridge operation but

Check signal, speaker wiring, and left chan-

 

 

incorrect signal input, speaker wiring, and/

nel phase selection installation and correct

 

 

or left channel 180° phase selection is

as needed.

 

 

chosen.

 

 

 

 

 

 

 

 

 

XCards are missing or not placed properly

Check crossover switches and XCard posi-

 

 

in crossover slots and/or switches are not

tions and repair or replace as necessary.

 

 

properly selected.

 

 

 

 

 

 

 

 

 

Speaker leads are shorted to each other or

Disconnect existing speakers and test with

 

 

to the chassis of the vehicle.

known working speakers and wires. If am-

 

 

 

plifier plays, check and repair wiring and

 

 

 

installation of speakers as necessary.

 

 

 

 

 

 

Speakers are defective.

Disconnect existing speakers and test with

 

 

 

known working speakers. If amplifier plays,

 

 

 

check and repair speakers as necessary.

 

 

 

 

 

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Contents Punch Serial Number Model Number Practice Safe SoundT T I N G S TA R T E D Table of ContentsIntroduction to 250 Series Punch Amplifier Accessory PackTransnova TRANSconductance NOdal Voltage Amplifier Technical Design FeaturesStereo Pass-Thru Result Quiet transmission of audio from source to amplifier Balanced Line InputsDesign Features 250 Mono 1AMPLIFIER Tools Needed Installation ConsiderationsMounting Location S Battery and ChargingWiring the System Using Passive Crossovers 6dB/Octave High-Pass and Low-Pass Filters Table of Crossover Component Values7234 Using the XcardCustomizing the Xcard 3386Xcard Resistor Chart Power Connections Option #1 InstallationPower Connections Option #2 Stereo/Mono Operation Stereo OperationEZ-Bridged Operation Bridged OperationAmplifier Using the 250.2 Signal Switching NetworkXCard not required Uses output from XCard Pass-Thruuses output from XCard Pass Thru XCard Audiophile Bypass the Pass-Thru Connecting the BLT Using the 250.2 Balanced Line InputsAC Voltmeter set to AC Volts Disconnect Speakers fromKeep ground connections as close to each other as possible Mono Operation 250 #1 250 #2 Stereo Operation using two Punch 250.1 Power AmplifiersXCard 250.1 #1/#2 set to Full Range Bridged Mono Operation Audiophile Bypass US I N G T H E 250.1 Signal SW I T C H I N G NE T W O R KXover is set to 12dB Pass-Thruhas Full Range output only Configure a 12dB per octave filter forConfigure a 24dB per octave filter for the 250 Total Power Delivery RMS System DiagramsWatt System rated @ 4 ohms 12dB/octave HP Woofers12dB/octave BP Total Power Delivery RMS Tweeters 450 Balanced Line Transmitter FG-BLT Rockford Fosgate AccessoriesXCard Crossovers Energy Storage CapacitorsRecommended capacitance is 1 farad per 1000 watts Amplifier has no sound TroubleshootingSymptom Diagnosis Remedy Amplifier does not turn onNo output from Pass-Thru Speaker Output LowOr Distorted Amplifier NoiseRepair or replace original source as Needed Source unit output too lowAutosound 2000s Quick Check for Troubleshooting CAR Audio SystemsMonthly magazine for the technically inclined Time for ProcessorsDynamic Power Measurements Watts Specifications500 Watts 420 Watts710 Watts 1420Limited Warranty Information R M a T I O N Ubicación DE LOS Amplificadores IntroducciónOperación mono/estéreo EspañolMontage IntroductionOpération stéréo/mono Tri- mode Einbauort EinleitungStereo/Mono Betrieb Linken Phasen Schalter auf 0 stellenTerminale GND cavo negativo IntroduzioneDove Posizionarlo Terminale B+ cavo positivoFase sinistra dellinterruttore posizionata su Stereo/Mono OperationMade in the USA

250.2 specifications

The Rockford Fosgate 250.2 is a powerful and versatile car amplifier known for its performance and reliability. As part of Rockford Fosgate’s renowned line of audio equipment, the 250.2 is engineered to enhance the listening experience in vehicles, providing a fantastic balance of power, clarity, and durability.

This amplifier delivers an impressive 250 watts of power, making it suitable for both beginner audiophiles and seasoned enthusiasts who seek to elevate their car audio system. The 250.2 is a two-channel amplifier, which means it can power two speakers or one subwoofer. Utilizing a class A/B topology, it ensures high efficiency while minimizing distortion, resulting in clean and powerful audio output.

One of the standout features of the Rockford Fosgate 250.2 is its Signal Sense turn-on technology. This feature allows the amplifier to automatically turn on when it detects a signal from the head unit, eliminating the need for a manual switch. Additionally, the built-in remote gain control allows users to adjust the amplifier’s output level easily, providing a customizable audio experience tailored to their preferences.

The 250.2 is equipped with an adjustable crossover that can be set to high-pass, low-pass, or full-range modes. This flexibility permits users to fine-tune the frequencies sent to their speakers, optimizing sound quality and performance. Further enhancing its capabilities, the amplifier also includes built-in variable bass boost that allows users to amplify low frequencies for a more impactful bass response.

Constructed with a durable aluminum heatsink, the Rockford Fosgate 250.2 maintains optimal temperature during operation, ensuring long-lasting performance and minimizing thermal issues. The amplifier also features RCA inputs, making it compatible with a wide range of audio sources, enhancing its versatility for various setups.

In summary, the Rockford Fosgate 250.2 is a reliable and robust car amplifier that combines high power output with advanced technologies and user-friendly features. Its efficient design, customizable settings, and quality construction make it an excellent choice for anyone looking to improve their vehicle's sound system. Whether for day-to-day driving or road trips, the Rockford Fosgate 250.2 provides an audio experience that is both powerful and enjoyable, reinforcing Rockford Fosgate's reputation as a leader in the car audio industry.
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