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I need a Circuit Diagram of Philips AH848 audio amplifier

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

SparkGap
  • 363 Answers

SOURCE: Audio Amplifier JVC Model A-GX3

If the service manual is not available on the JVC websites then you should just Google search "JVC A-GX3 service manual" There are many websites that archive manuals. You'll probably have to pay for a copy. Why can't you disassemble the unit and see the output transistor numbers first? More importantly how do you know this is the fault?

Posted on Sep 22, 2007

XSdB
  • 80 Answers

SOURCE: 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.

Posted on Jun 12, 2009

  • 84 Answers

SOURCE: circuit diagram of 1400 watt woofer amplifier

www.the12volt.com/ subwoofer wiring diagrams and then find out what ohm of sub u have and how many voice coils and what ohm your amp is stable at.

Posted on Jun 14, 2009

  • 631 Answers

SOURCE: Schematic Diagram

I don't have a schematic but I have photos of that amp. What part do you need to identify?

babin_perry@yahoo.com

Posted on Jul 23, 2009

joecoolvette
  • 5660 Answers

SOURCE: Require circuit diagram/pin-out for motherboard audio connection.

Kommer,
I believe there has been some misunderstanding. You do not have to pay to receive a free solution. This is only if you need a Premium Expert to give a solution.
You are required to join Fixya in order to post a question, and receive a free solution.

You have already done this.

I would like to answer your query, and provide a possible solution. My solution however, is going to go beyond what you have asked. It is my sincere hope that this provides you an answer to your query, and possibly guidance in what I feel is the ultimate outcome from your question.

I would like you to view this web page,

http://www.systemsalchemy.org/howto/aptiva/bose.html

If this is not the correct response you had in mind, please come back and state so. We'll go from there.

Regards,
joecoolvette

Posted on Oct 08, 2009

Testimonial: "Thanks very much joecoolvette for sticking with me and providing the website address. This information is just what the doctor ordered. Regards Kommer"

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here go to this site u can thank me later by rateing me if u could just copy and paste the link



http://www.maxxsonics.net/manuals/crunch/pdfs/crBM_BLX280-2250_1-2000D.pdf

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