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Carlsbro gamma 15 400 schematic

I wish to purchase an internal amplifier replacement for this speaker.

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Posted on Jan 02, 2017

palaboy
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SOURCE: Carlsbro Bass Reactor 400 bass amp - power section dead

• Could be drive transistor , output transistor or both on the main amp.

But check for power supply and in the preamps also.

• A signal tracer will come in handy when troubleshooting these kind

of symptoms.

• Measure supply voltages,

• Check offset voltage

• Check idling current

Isolate , and trace afterwards.


• Schematic is really needed when there are burnt and unrecognizable

component. But one can use similar schematics to analyze circuit

problem.

Posted on Aug 01, 2012

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1 Answer

I have a samsung ht-h7750wm and can't get the centre speaker working can you help


Check the speaker first. If found OK, the internal amplifier stage circuit to the set is faulty. If the speaker is found damaged, here too the internal amplifier circuit fault; a direct short circuit. If so, without rectifying that fault; never connect a speaker in place, as there is chance to the speaker that you connect too will get burned.
It will be best to contact any service technician in this case; I suggest.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

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1 Answer

Carlsbro gamma 15 400 internal amplifier


I'm not familiar with your exact product, but Parts Express sells all sorts of replacement in-speaker amplifiers. I've replaced several powered subwoofer amplifiers with their products, and the customers usually report-back that it sounds better than when new. You might want to check them out, and see if they have one that will fit.

Apr 23, 2013 | Audio Players & Recorders

1 Answer

Carlsbro Bass Reactor 400 bass amp - power section dead


• Could be drive transistor , output transistor or both on the main amp.

But check for power supply and in the preamps also.

• A signal tracer will come in handy when troubleshooting these kind

of symptoms.

• Measure supply voltages,

• Check offset voltage

• Check idling current

Isolate , and trace afterwards.


• Schematic is really needed when there are burnt and unrecognizable

component. But one can use similar schematics to analyze circuit

problem.

Aug 01, 2012 | Audio Players & Recorders

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M audio studiophile BX8a deluxe has very hot back panel when on after a few minutes


There is a problem with the amplifier internal to the unit, most likely from the main power transformer. Return to the place of purchase, or a service center for repair/replacement.

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I want to mount an extension speaker jack to my Fender Frontman 212. It will involve putting two or three small metal screws into the metal wall which surrounds all the hidden electronics. I need to know...


You will have to disconnect one of the existing speakers, as adding another speaker in parallel as an extension would go below the minimum design impedance of the amplifiers.
You would need to wire a jack that has a switch so when you plug in the extension it disconnect one of the speakers.
Some amplifiers are designed to use an extension, however ones with two speakers are usually not designed to allow this.

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Buzzing in speakers on Carlsbro Marlin 8400 Power Amp


Hi,

If your volume is down and there's a hum, then it could be that your capacitors in the power supply are blown. Also there could be a problem with the bridge rectifier, possible that there's 1 or more diode's defect. Any technician can reapir that.

Hope it helps,
Gerard

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No sound from a Philips model 60P8341...


Hello Jarvis1,

This is an indication that the actual sound output is working, but the amplifiers to the speakers are not. How you could take care of this is to check in there are any loose connections to the speakers. Then check if you have sound coming from the leads of the output stereo amplifier (You will need the schematic and an audio tracer/tracker to find this location and test for sound). I would venture that there would be no sound from the amplifier. If not you will have to replace the amplifier chip. I would suggest getting a qualified TV technician to perform this task. If you do have sound at the output of the strereo amplifier chip, then it might be a case of the earphone jack switch being broken, let me explain when you plug in your earphone the speakers are disconnected by a switch in the earphone jack if this switch is broken it could disable the speakers and produce these results. There is also the possibility that you have the speaks disabled from the menu of your TV (check this too, actually check this first).

I hope this helps,

Thank you,

Shuttle83

Jul 03, 2008 | Philips 60P8341 60" Rear Projection...

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