Question about Bose LifeStyle 5 Series-III CD Shelf System

1 Answer

Can you tell me the fix?


Could you please let me know the fix? I have the same this an op amp?

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  • 2 more comments 
  • rbrenmoon Aug 01, 2008

    The display screen went out first. Now the whole sysyem is dead. Has been for a while now.

  • allen-mike Aug 06, 2008

    after about 10seconds of play the sound stops. i've tried to open the subwoofer box to look for a fuse or something but can't figure out how to open sub

  • Anonymous Sep 05, 2008

    no sound

  • gdyer Sep 20, 2008

    I have had my Lifestyle 5 for about 4 years. Yesterday my audio started
    dropping out and I would get a loud high frequency screech/burst...and
    then no audio.

    Displays fact you can hear audio with a earphone at the 1/8 jack...but no output from the speakers except for an occasional burst of violent noise...then the audio will return at some point and the unit works fine for a while. It seems like if I disconnect the audio input for some reason (moving components) I have to go through this audio drop out for a day or two... pop's - snaps of audio until it finally comes back to normal operation.

    Thanks in advance for any help!



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  • Contributor
  • 12 Answers

Hi, Sorry does your question relate to a display problem or a sound problem? If it is a display problem let me know the colour of the perspex, strange question I know but it does help me identify the unit.

Posted on Jul 01, 2008


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2 Answers

Can you tell me the fix?

Can you be more specific, tell me the model, and what is the problem.

Oct 08, 2008 | Bose LifeStyle 5 Series-III CD Shelf...

1 Answer

Audio drops out when I increase volume or an especially loud part of a CD plays. Is it worth fixing?

The breaker is probably kicking in--this is proper amp operation. You should verify that the speakers are at or above the specified impedance for the amp. Check the resistance from the connection at the amp to detect both potential speaker and wiring issues. Are you splitting the amp outputs? That would also cause this problem. Please let me know if you have more questions.

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I have a jl audio e1800d an it its beatin rite all tha green lights on tha inside its on

yes you have a internal fault of the amp. the circuit that puts it into safe mode is bad and that is a very small chip on the board know as a op amp. needs to be repaired.

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DPX11500 clarion amp the blue and red led light are blinking how do i fix this?

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My amp indicator is blinking blue and my sony xplod sub is not workin thru the amp but works wen i connect it in my other car how do i fix it so my light stops blinking, and my sub works again

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1 Answer

Difference between audio amplifier & OPAMP

An audio amplifier is a general term that applies to any amplifier specifically designed to cover the audio spectrum, and usually referres to power amplifiers (of any power from micro headphone amps (like the headphone audio amplifier circuit in an ipod) . to power amps like the ones used at rock concerts that are several thousand watts).

An OP-AMP is an Operational Amplifier, which refers to a type of amplifier circuit. Op-Amps can amplify audio, but are not restricted to it. They are used in many things from audio circuitry to signal conditioning, and sensing from all kinds of equipment from seismometers, to light sensors, temp sensors, insturmentation amps, lab amps... RF amps etc...

There are many many different types of op-amps that are designed for many different applications. Mostly the parameters are frequency response, gain, and input/output impedance.

Op-amps usually come in an IC package of some sort. The most common are 8 pin DIP package types.

Op-amps do NOT handle power. (although there are some hybrid power op-amps available, they are specialty devices) The term op-amp refers to the ability of the amplifier to be manipulated mathematically by external values. (i.e. resistors set up to add, subtract, or multiply the value of the input signal) Hence the term OPERATIONAL amp, because it is performing mathematical operations on the signal. (They were first used in analog computers, allowing the voltages to be added, subtracted, and such, and displaying the resultt by directly reading the voltage value).

They handle only small signals, and require being followed by a POWER amp to do anything useful, such as drive a spleaker, or a relay, or a transducer.

For your question, most all audio amps consist of stages.

There is an input/pre-amp stage (this is usually where the eqalization, signal processing, and bass/trebel tone controls are implelented) and a power amp (output) stage that takes the signal fromthe pre-amp and raises the voltage and current to a sufficient level to drive speaker.

The input/pre-amp stage is most usually composed of a series of op-amps. Op amps also are responsible for the bass/trebel control, and the EQ.

There will most usually always be several Op-Amps in every Audio Amp.

Jun 12, 2009 | Audio Players & Recorders

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