Question about Yamaha RX-V550 Receiver

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My front main speaker channel is no longer working. The fuses on the power side are intact. There was no obvious time of failure. anything else i should check?

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I know this sound silly, but, have you checked the tini tiny button on the front of the receiver that says A/B on it in microscopic letters? other than that, not much else to check. It happens all the time! Hope this helps.

Posted on Sep 27, 2009

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Posted on Jan 02, 2017

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Why does my lowrey organ not make a sound after I have switched it on?


This is a generic answer for this kind of question.
When there is no sound
Check the obvious.
Is there a light on the organ indicating it is on?
  • Plug it in to a known working wall socket, switch on at the wall
  • Switch on at the organ, check light
  • Very old keyboards need a voice to be selected!!
  • Turn master volume up
  • Turn any other volumes up
  • i.e. lower manual volume
  • upper manual volume
  • swell pedals down
Sometimes a sustain pedal plugged into a volume pedal socket will mute the output, check this.
Headphones out, most headphones will turn speakers off, sometimes the headphone switch can be dodgy, work the headphone plug in an out a few times
There maybe a switch that turns off the speakers, look near the output sockets
Software volumes up, check display, if any.
MIDI instruments, check local control is ON
Still no sound?
Can you hear anything from the speakers?
Hiss or hum usually means the speaker is ok
Total silence may indicate speaker failure, but only if there is one speaker, as in older home organs, or smaller keyboards
Try headphones next, TURN Down master volume first just in case!
If there is some sound, very quiet and gross distortion then possible power amplifier failure.
If your instrument has any kind of line out as well as a headphone jack, try these.
The line output will likely be a pair of phono sockets,like you have on HiFi equipment, 1/4 inch, 6.35mm jacks, like the bigger headphone connector, a 3.5mm socket like the smaller headphone connector, or even a DIN connector on older equipment.
Connect these to the aux (or Line or CD) input on your HiFi, guitar amp or similar. (some times these outputs will drive headphones, usually you will only hear anything in the left side). If this works then it is very likely the power amplifier.
Further tests on MIDI equipped keyboards would be to see if the MIDI does anything.
If MIDI out works and there is no sound, and MIDI in makes a sound this points to local being off, buried somewhere in the menu will be local on or off, make sure it is on.
If MIDI out doesn't work then the failure is likely to be internal power supply or something else critical (not nnecessarily major).
Power amplifier failures in newer, low power, keyboards are often the power amplifier chips (i.c,s), older amplifiers may have just blown their fuses but one or more output transistors may have failed.
Cost of repair will be down to the time it takes to get to the fault, taking these to bits and putting them back can take a lot longer than the repair.!
Hope this helps, Chris the Fader

Aug 28, 2016 | Music

4 Answers

Subwoofer


go to audio set up and configure the system for 5.1 or higher sound output.then only all the speakers ll work

Jan 03, 2008 | Yamaha RX-V640 6.1 Channels Receiver

1 Answer

Sansui AU-D33 Lh speaker channel not working.


As the channels are identical you can use the good channel has a guide to the bad one. First thing is to look around see if anything does not look the same as the right channel.

If nothing obvious stands out, with the power on, using an insulated screwdriver touch the two channels one at a time. Keep away from the power supply and anything that is common to both channels. The channel will buzz once touched. Depending which points you touch them. The right channel will tell you if it should buzz at that point. Work backwards from the speaker outputs if you can. If you hear a buzz on the left channel then it is working at that point, if it produces the same sound on the right.
Using this method you should track down the part that has gone.

Dec 11, 2015 | Audio Players & Recorders

1 Answer

Peavey xr 8600 about 6 yrs old used weekly heard a loud pop them a low emiting hum no sound comes thru .... is it time for a tech ? or dose it sound like an easy fix like fuse or something power on board...


Check the caps in the PSU, these give out over time although not normally when used regularly. You may be lucky and be able to see one or more with bulging tops. If you can replace them and all MAY be OK. Whilst in there check for any visible signs of anything burnt or blown. If it looks too bad or there is nothing obvious it's a trip to the repair shop for certain.

Oct 05, 2013 | Peavey Xr 8600 8 Channel Powered Mixer

1 Answer

I want to know where i can get a new fuse for my pmp 5000b-212XL powered mixer ?? and waht kind of fuse is it ?


If the fuse has blown DO NOT replace it without repairing the cause of the failure. You will likely do more damage to internal components. Take the unit for repair before applying power again. I have repaired many of these and first a failure occurs in one of the power amps... usually the A channel, then people replace a fuse that protected the power supply and that blows the power supply taking out another $30 of components and $200 labor. (they are hard to change) If the unit is under warranty, exercise your warranty immediately. There is a weak spot in the channel A power amp.

ALSO please read my tip on here about a hazard in PMP series powered mixers. It is in regard to using Speakon to 1/4 inch speaker cables... NOTE that the BARREL of a 1/4 inch speaker cable or adapter from the Speakon is the HOT side for channel A and if you ground it inadvertenly, goodbye channel A power amp!!!

Jan 04, 2011 | Behringer PMP4000/B212XL Mains & Monitors...

1 Answer

My left side speaker is not working i suspect fuse blown but where is the fusebox situated on my BOSE 901series III.


There is no fuse in a 901. Have you swapped channels, speakers, bypassed the EQ to ensure it or its pathing has no part in the failure?

Oct 28, 2010 | Bose 901 VI Main / Stereo Speaker

1 Answer

Stock radio 01 eclipse radio turns on, cd plays but no sound from speakers. any thoughts


Assuming you have checked your wiring to the speakers and they are all intact, you are looking at an amplifier failure.

If you have the inifnity system there is an external amplifier under the passenger seat. You can check it's fuse in the fuse box on the drivers side dash endcap. The fuse holder is an add-on fuse holder to the right of the block (as you look at it), not in the main fuse block.

If the fuse is blown, replace it, but likely it will blow again. The external amps have a very high failure rate and unfortunately are quite pricey.

If you do not have the amplified system, the radio internal amplifier has gone out, and the radio will need to be sent out for repair or replaced.

Oct 25, 2009 | 2001 Mitsubishi Eclipse

1 Answer

No sound from Left and Right front speakers


You didn't state it but I assume the other channels are functional?
The auxilliary channels are generally lower power and may even be serviced by a different voltage than the main amps. If it is so designed, you may have something as simple as a blown fuse for the main amp supply.
If the aux. channels are equal in power, the power supply may still be dividing the load so a fuse still could be at fault. The unit could also use integrated power amplifiers in which case, if two channels are operating from a single module it could be a module failure.
I don't see much chance of anyone repairing this system without examining it in the first person. 

Jan 04, 2009 | Onkyo TX-DS989 Receiver

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