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Eleazar Miheso Posted on Apr 19, 2016
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My Yamaha k-1200 sterio control mixer lowers output volume after a few minutes of functioning. What is the problem?

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Mario Francis

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  • Expert 61 Answers
  • Posted on Apr 29, 2016
Mario Francis
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Something is heating up and losing power either from a loose connection or old age. google common problems with this unit.

3 Related Answers

Anonymous

  • 4234 Answers
  • Posted on Feb 12, 2009

SOURCE: No volume control with 2 faders on Mackie CR1604 mixer

If all other functions work for those channels, the most likely problem is the fader itself. These can fail and operate more like switches rather than faders. Without witnessing the behavior, I can not state that for sure. While these mixers are not the hardest to work on, they are time consuming. The faders can be purchased from Mackie directly. If you need to have this repaired, any shop that repairs audio gear should be able to erpair this for you. Where are you located?

Dan

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Rick

  • 611 Answers
  • Posted on Feb 07, 2011

SOURCE: I am using the Yamaha

Unfortunately, I do not have a solution for you. However, I recommend calling Yamaha, as they should be able to help you troubleshoot the problem.

Fred Yearian

  • 5603 Answers
  • Posted on Dec 01, 2011

SOURCE: I have a Pmp5000 889406987784

Usual problem is the Channel A amplifier has burned and blown the switching transistors. Usually an internal board arc occurs and unless very skilled at board work of clearing the burned area and replacing the components you are better to replace the HCA2400 amplifier module... about $160

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0helpful
1answer

Master volume not registering at correct level. Profx12

This unit will require an amp. I have set up several mixers and I
do not watch output level numbers, you can get desired volume using amp. It does no good to drive input levels high output levels high and the turn down amp. Lower your inputs so no light flashes set master gain to -6 output and then raise amp volume. I have set up 16 mic mixer set individual levels and the feed to main mixer and controlled levels with one fader. I have taken mixes from main mixer to another mixer to control audio on video feed. A good band does not let member's set their levels . the audio person set levels, bad bands have members to set own level with resultant a mess that gets louder and produces sub par event. Remember good bands sound good and bad bands only sound louder, and bad
0helpful
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Psr s670 keyboard plays fine but when it is plugged into a mixer after a time the volume kicks in and out?

The issue you are experiencing could be related to a few different things. Here are some things to check:
  1. Check the cables: Make sure the cables you are using to connect your keyboard to the mixer are in good condition and securely plugged in. Sometimes a loose connection or a damaged cable can cause issues with the volume.
  2. Check the mixer: Make sure the mixer is set up correctly and the levels are adjusted properly. If the mixer is overloaded, it can cause issues with the volume.
  3. Check the keyboard settings: Make sure the keyboard is set up correctly and the levels are adjusted properly. Some keyboards have settings that can affect the volume output.
  4. Check for interference: Sometimes interference from other electronics or electrical sources can cause issues with the volume. Try moving your setup to a different location and see if that helps.
If none of these solutions work, it may be a hardware issue with either the keyboard or the mixer. In that case, it may be best to consult with a professional technician.
Mar 28, 2018 • The Music
0helpful
1answer

Hen the controller is switched off the monitor comes back VOX

Depending on what other settings are chosen- this at times can be normal. You may be simply switching from the output of the mixer board to the sound input source, and if gain is up and mixer level is up, you will hear it. If it is outputing to the host and it should not be; check stored settings and Scene memory.
0helpful
1answer

Useing a Peavey XR 800F Powered PA Mixer/Amp which develops distortion on output after around 60 minutes. Also had gear linked to all inputs at the time, three mics, 2 guitars and keyboard. Any ideas...

First of all confirm if the speaker impedance is not lower then the recommended Ohms at the back of the Mixer speaker socket.You can use an 8 Ohms speaker on a 4 Ohms amplifier but not vise versa .
Next see if the fan on the mixer works. If not the Amp is getting very hot and this will lead to unwanted distortion. You can confirm if its a heat related issue by playing the mixer at low volumes for more than an hour and see if it distorts.
2helpful
1answer

Behringer pmp2000. I have Yamaha passive monitor and can not get sound out of it. any solutions.

The outputs are usually just for the front of house speakers - the monitors usually need their own amps.

Check the manual.

You have 1200 watss of power - so keep the volumes REALLY LOW to try things out - otherwise your speakers could be blown by the amp.
0helpful
1answer

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



0helpful
1answer
0helpful
1answer

I have purchased a beheringer 1832fx usb mixer and I have connected my computer to my mixer that has a usb interface on the back in order to play my backing tracks, music, via my computer, and when I turn...

The main mix controls ALL outputs simultaneously.

The mic channels are controlled individually by the sliders.

It sounds like you are on the verge of feedback where the mics are picking up the PA speakers.

Make sure you have loaded the support SW and make sure you have disabled ECHO as the mics may be looping back through the computer causing the rattle.
3helpful
3answers

How do i connect yamaha mixer to pc or yamaha receiver

I am sorry to disagree, but some information in the previous post is INCORRECT. DO NOT connect the output of the mixer to the MIC input. The mixer generates LINE level output that should go to the LINE-IN on the sound card. If you connect the mixer to the mic input, you will damage the sound card. MIC level inputs have an additional amplification stage.

Dan
1helpful
2answers

No volume control with 2 faders on Mackie CR1604 mixer

If all other functions work for those channels, the most likely problem is the fader itself. These can fail and operate more like switches rather than faders. Without witnessing the behavior, I can not state that for sure. While these mixers are not the hardest to work on, they are time consuming. The faders can be purchased from Mackie directly. If you need to have this repaired, any shop that repairs audio gear should be able to erpair this for you. Where are you located?

Dan
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