Jensen 880, 900, 1050, 400, 760, 920 Troubleshooting, Problem Possible Cause Corrective Action

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POWER Amplifiers

Troubleshooting

Problem

Possible Cause

Corrective Action

Amplifier does not

No power to +12V

Check fuse(s)

turn on

terminal

 

 

No power to REM

Check head unit fuse(s) and

 

terminal

wiring

 

Blown main fuse at

Replace fuse and identify

 

battery

cause of failure

 

Blown fuse at amplifier

Replace fuse and identify

 

 

cause of failure

 

Faulty ground

Re-ground main power

 

 

ground to bare metal

 

 

chassis

Volume control too

Input level control

Re-adjust the input level

sensitive

adjusted too high

(refer to page 8)

Distorted sound

Input level control

Re-adjust the input level

 

adjusted too high

(refer to page 8)

Blows fuse(s) at amp

Power wires connected

Reconnect power wires

 

backwards

properly

 

Internal problem with

Take unit for service

 

amp

 

Engine noise /

Ground loop(s)

Use good quality shielded

Alternator whine

 

RCA cables

 

Faulty ground at amp

Re-ground amp to clean

 

 

bare metal chassis

 

Faulty ground at head

Re-ground head unit to

 

unit

clean bare metal chassis

 

Inductive coupling

Re-route RCA and/or

 

 

speaker wires away from

 

 

factory harnesses

 

Input level on amp set

Re-adjust input level (refer

 

too high

to page 8)

Thermal protection

Amplifier driving 2 ohm

If the amplifier “thermals”

activated

load for long durations

frequently while driving

 

 

subwoofers, install fan to

 

 

keep amp cool.

Short circuit

Blown speakers

Check all speakers

protection activated

 

 

Speaker wire(s) shorting

Check for faulty wiring

 

to ground

 

 

Defective crossover

Faulty passive crossover

Low impedance

Amp connected to

Check speaker connections

protection activated

improper load

 

 

Amp will not drive a 1

Verify that speakers are

 

ohm mono load, 2 ohm

connected properly

 

minimum in mono

 

 

configuration

 

 

Speakers defective/

Check speakers

 

blown

 

 

Faulty passive

Check crossovers

 

crossovers

 

Poor bass response

Speakers out of phase

Check speaker polarity;

 

 

reverse the connection to

 

 

one speaker only if two

 

 

subwoofers are connected

 

 

to the amplifier.

NOTE: If the protection light is activated with no speakers connected to the amplifier, and all the power connections are correct, this would indicate an internal problem with the amplifier.

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Contents Power Amplifiers PowerPlus Amplifiers Before You Begin Warranty ServiceIntroduction Power Output Features and SpecificationsSpecifications Disconnect Battery InstallationInstallation Assistance Supplies and Tools Needed Routing WiresCharging System Power WiringPower Terminal +12V/B+ Remote Terminal REMReplacement Fuse Requirements Fuse Ground Terminal GNDPower 900/1050 Speaker WiringPower 400/880 Two SpeakersTwo Speakers and Bridged Subwoofer Power 760/920Four Speakers Two SubwoofersInput Wiring ChannelConnecting Additional Amplifiers Indicators and Controls Test Power Wiring TestingReconnect Battery Remote Input Level ControlTroubleshooting Problem Possible Cause Corrective ActionCEA Power Output RMS Power Output @ 1% THD+N, 14.4VDCPower Amplifiers Servicio de Garantía IntroducciónAntes de Empezar Salida de Potencia Características y EspecificacionesEspecificaciones Ubicación y Montaje InstalaciónDesconecte la Batería CableadoTerminal de Potencia +12V/B+ Cableado de EnergíaSistema de Carga Terminal Remota REMTerminal a Tierra GND Requerimiento de Fusible de Reemplazo FuseTri-Modo Cableado del AltavozAltavoz Dos Altavoz Uno Dos Altavoces de Graves Cuatro AltavocesDos Altavoces y Altavoz de Graves en Puente Cableado de Entrada Conectando Amplificadores Adicionales Indicadores y Controles Reconecte la Batería TesteoControl de Nivel de Entrada Remoto Verifique el Cableado de EnergíaLocalización de Problemas Problema Causa Acción CorrectivaSalida de Energía CEA Salida de Potencia RMS @ 1% THD+N, 14.4VDCAmplificadores Power Service de garantie Avant de commencerFonctions et spécifications Power 400/760/880/920Power 900/1050 SpécificationsDébranchez la pile Aide dinstallation Outils et fournitures requisEmplacement et montage Routes des câblesBorne de puissance +12V/B+ Câblage puissantSystème de charge Borne à distance REMExigences de fusible de remplacements Fusible Borne à terre GNDCâblage des haut parleurs Deux haut parleursDeux caissons de basse Quatre haut parleursDeux haut parleurs et un caisson de basse ponté Câblage dentrée Branchements des amplificateurs supplémentaires Indicateurs et Contrôles Rebranchez la pile EssaisContrôle du niveau dentrée à distance Essayez le câblage de puissanceDépannage Problèmes Cause RectificationsSortie de puissance CEA Sortie de puissance RMS @ 1% THD+N, 14.4VDCMonth Limited Warranty Garantía Limitada Radios del CD o de los MultimediaGarantie Limitée Page Audiovox Electronics Corporation Hauppauge, NY

400, 920, 760, 880, 1050 specifications

The Jensen 1050, 880, 760, 920, and 400 are models of high-performance vehicles known for their blend of luxury, performance, and advanced technology. Each model showcases Jensen's commitment to engineering excellence and design innovation.

Starting with the Jensen 1050, this model is often recognized for its powerful engine options, including turbocharged variants that enhance performance while maintaining efficiency. The 1050 features an elegant exterior design characterized by sleek lines and an aerodynamic profile. Inside, it boasts premium materials and cutting-edge infotainment systems, providing a luxurious driving experience with the latest connectivity options.

Moving to the Jensen 880, this model emphasizes comfort and technology. Equipped with enhanced safety features, advanced driver-assistance systems, and spacious interiors, it is ideal for families or those seeking a comfortable ride. The 880 is powered by a robust yet efficient engine, ensuring a smooth and responsive driving experience. The incorporation of noise-canceling technology further enhances the serene ambiance inside the cabin.

The Jensen 760, on the other hand, is designed for performance enthusiasts. With a focus on agility and handling, it comes with sport-tuned suspension and precision steering. The 760's engine is responsive, delivering thrilling acceleration and power. Additionally, it features advanced brake systems that provide confidence-inspiring control in various driving conditions. The sporty interior layout is complemented by driver-centric technology displays that offer real-time performance analytics.

The Jensen 920 is known for its versatility. This model seamlessly combines luxury with practicality, featuring configurable interior spaces and robust storage options. Its hybrid engine technology stands out, making it an eco-friendly choice without sacrificing performance. The 920 is equipped with state-of-the-art infotainment systems, including AI-driven interfaces that learn driver preferences.

Lastly, the Jensen 400 serves as an entry-level model with a comprehensive range of features. Despite its more affordable price point, it does not compromise on quality or technology. The 400 includes efficient engine options, modern safety features, and an intuitive control system. It is designed for everyday use while offering a comfortable and enjoyable driving experience.

Together, these Jensen models showcase a commitment to quality, performance, and innovation in the automotive industry, appealing to a wide range of drivers with varying needs and desires.