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Yamaha emx 88s

It is not working with regular speakers connect behind system. When i connect powered speaker to the front monitor jack, it works. Need help to make speakers work when connect behind on speaker jacks behind.

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Amplifier module faulty, it may even damage your speakers if it had dc on the speaker terminals. have a qualified technician to check and confirm all components.

Posted on Aug 26, 2016

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Posted on Jan 02, 2017

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Blackberry_U
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SOURCE: No sound from speaker, but works with external speaker plugged in

It sounds to me like you have blown the internal speaker.

Posted on Jun 17, 2009

  • 1138 Answers

SOURCE: peavey minx 110 no sound from main speaker but

Inside the headphone jack is a built in switching mechanism. It is there to cut off the sound to the speaker when you are using headphones to practice quietly. For some reason or another it seems as if this is no longer working correctly. One of the causes of this can be bad solder joints on the circuit board where this jack is located. Another cause is a failure of the jack itself. If you are capable, Take the circuit board out and have a look. Hope this helps.

Posted on Oct 27, 2009

freddyfreddy
  • 3 Answers

SOURCE: peavey minx 110 no output to speaker-headphone

LOUD SPEAKER BURNED REPLACE
FREDDY
TIGER ELECTRONICS LTD
ISRAEL

Posted on Nov 11, 2009

  • 5603 Answers

SOURCE: How to remove amp from cabinet? reverb doesn't work.

SOMETIMES the handle screws must be removed as well.

I have taken a lot of these out and the key is to figure out which direction it comes out... MOST are out the back and sometimes a board across the back has to be taken off with four screws to clear a transformer.

FIGHTING getting the thing out when it catches on the Tolex covering is the USUAL problem. Takes patience and sometimes a blade to hold the Tolex back.

USUALLY the speaker baffle stays in place.

Posted on Nov 12, 2009

  • 1138 Answers

SOURCE: Marshall MG100HDFX 100-Watt Amplifier Head. The

You'll have to take it in to get it repaired. From what you described it sounds like you blew the output stage out. You can't run from your speaker output jack into the input jack of another amp. You should go out of the recording out, line out, effects out or in the least case your headphone out. What happens usually is your output transformer short circuits due to a mismatch of impedances. It sounds like you still have a transformer though so you might have gotten lucky. You will need to take it in though. Sorry.

Posted on Nov 26, 2009

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Can I connect only one speaker to a yamaha emx 312 sc power mixer?


First it is certain that you would not want to plug both outputs of the stereo power amp into one speaker combining both channels into the same speaker. (see image from manual below - also link to manual)

Next I would be very concerned about only using the one side of the main amp out as it could cause an unbalanced load, or you could be driving the load into dead air connection and any of these conditions are destined to cause premature failure of the power amp.

Taking a quick scan of the manual for this unit, it appears what is pretty common to most powered mixers, hook up two matched speakers/loads to each chanel of the output.

Your best bet is to shed those monster cabs, there really is no need for them especially with this sized powered mixer, and get yourself a nice pair of full range cabs like EV1202;s, EV SX300's, or some nice 2 or 3 way 15" JBL's/

Just my opinon.

Link to Yamaha EMX 312 Owner's Manual:

Yamaha EMX Series Owners Manual


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Suspected Faulty PC board Dead Capacitor Or Mod Pot I would suggest returning it for an exchange the problem is your speaker will work on a regular stereo because a stereo powers the sound internally causing the magnets in the speaker to vibrate Headphone jacks are designed to pick up off a seperate circuit board with a different connection to the main board hence the no sound from the speaker.

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How can I set this up as fold back monitor? I have two AC60 and PA system. I want to use the rolands as fold back and wondering the best way to do this. PA system - Yamaha 3MX 312SC with two 200 watt...


Connect a jack cable from the monitor out on the Yamaha to the AUX IN on one of the AC60s. Then connect a jack cable from the MAIN OUT of the AC60 to the second AC60. Set the level going to the foldback by turning up the monitor control for each channel going in to the Yamaha. Be sure to switch on in this order: YAMAHA>AC60(1)>AC60(2). Switch off in the reverse order. Start with all volume controls down and bring them up to the level you need.

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Just bought a Harbinger HX121M 2" Monitor, from Musicians Friend it did not come with a booklet on how to wire into my sound system it has two 1/4" jacks and a strange round plug about the size...


If you don't know how to connect this... well we don't either because you did not tell us what your sound system is. The larger plug is what is known as a "Speakon" connector and is a fairly reliable speaker connection that is used now. For your use you will PROBABLY use either of the 1/4 inch jacks with a cable from the amp that will drive the monitor(s). If you have multiple monitors you will daisy chain them using the 1/4 inch jacks and SPEAKER rated cables creating a string of speakers with input going into one and an output from the same one to the next speaker and so on...USUALLY you will be limited to two speakers per amp output...

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You are NOT trying to drive speakers from the aux outputs are you? These are LINE outputs that should be using TRS balanced lines to either powered speakers or amplifiers. Often these are used for monitors. The monitoors MUST be powered versions or use external amplifier if the speakers are passive..

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I Have a Peavey XR 600B mixer. There are only 2 inputs in the rear for speakers. I want to add more speakers to be used as monitors or just have extra speakers. How can this be done? I only have...


First off it's outputs to your speakers. If you had an extra set of powered or amplified speakers you could "Y" cable your speaker outputs. Your passive speakers won't work without an amp. You really need powered speakers or an amp for your extra speakers. (if you had powered/amp'd speakers you could run them off one of you "aux" out for monitors. Do not daisy chain your speakers connecting twi together, you'll change the resistance/ohms and damage your speakers. Trust me, I do this for a living.

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The speaker connected to my Yamaha EMX 312 SC is not bringing out any sound when we use the microphones but the displays on the power mix shows there is activity.


Assuming that you have checked the speaker leads for broken connections and that you know the speakers themselves work okay (test with a different amp) and that you can hear sound on the headphone socket
  1. Check that you actually have the power amp switch in the right position for the outputs (monitor jacks or main neutrik/speakon sockets) that you are using (see page 25 of the manual)
  2. That your speakers are connected to the speaker outlets on the rear panel and not the 'main outputs' on the front panel, which are for use with a separate power amplifier
  3. Check the mute button is not in
  4. You have turned both the master volume controls up.
If none of the above solves the problem it is likely that the overload protection fuses on the amplifier output stage have blown and need replacing - take to a repairer
You can find the user's manual here
http://www2.yamaha.co.jp/manual/pdf/pa/english/mixers/emx512sc_en_om_d0.pdf



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1 Answer

Bought a powered monitor as it said to do even though I thought it was weird as you usually use a passive monitor with a power amp. Purchased Kustom 10" powered monitor, hooked it up to monitor...


You didn't mention what brand powered mixer you have, HOWEVER MOST powered mixers also have a line level monitor and main output jacks. These are almost always 1/4 inch jacks. In any case you should be using BALANCED lines to the powered speakers using either XLR or TRS connectors on the ends. Please tell us what powered mixer you have so we can give you better answer regarding which connections to use. IF for some reason your mixer does NOT have line level outputs, you can use a high level Direct Box to condition the powered outputs to be sent to the powered speakers..
Also make sure ALL your interconnected equipment is powered by the same receptacle or source to avoid damaging due to ground bounce on utility lines and circuits. This often means running an extension cord from the stage where the powered speakers are along with a snake of the audio cables.

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Try headphones. If they work, then the switch on the headphone jack that disconnects the speakers may not be working properly and not connecting the speakers.

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