Question about Music

1 Answer

Loud speaker hum then blows fuse

Tried to replace the fuse, then i get a loud hum and the curcuit labeled R63 starts to smoke.

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 73 Answers

Hi there. The final output IC (big and black with 15 pins? attached to heat sink) is shorted and needs to be replaced. If you can still see color bands on R63, it should still be good.
Thanks
Paul

Posted on Jul 12, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Lowry organ has no sound how do I fix?


  1. Confirm that there no is power to the unit from the wall.
  2. With power on confirm no lights or hum from speakers
  3. They have a slow-blow fuse shown on the circuit diagram
  4. Check fuse if blown replace with same type

Nov 22, 2015 | Music

1 Answer

Speaker shorted out


If you do not have training in electronics you can cause serious damage to yourself trying to fix this. You will need to take this into the shop.

Jan 17, 2014 | Harbinger Music

1 Answer

I have a Crate CR212 it started to hum/buzz today. It would not play out any sounds other than the noise. I unplugged everything and still it hummed. I unplugged the unit, check the fuse and replugged and...


Are all the tubes lighting up? they should glow like dim light bulbs. If not, replace them with the same model type (12ax7, or EL34 for example).

Often there are two fuses, one to protect the speaker and another to protect everything, it sounds like the latter fuse may be burned out. take it out and take it to radio Shack for exact replacement.

Oct 12, 2013 | Crate Music

1 Answer

Alesis Multimix8 started smoking and now won't turn on. If it is a fuse or something how do i replace it?


A blown fuse will not produce smoke. A component failed and probably fried a resistor, which would smoke. That in turn would blow the fuse.Just replacing the fuse will not cure the problem. Your unit needs repair.

Dec 27, 2012 | Alesis Multimix 8 USB 2.0 - 8 Channel...

2 Answers

Speaker humms only. what causes that?


Incorrect connections or volume settings.

• In powering up, mixer first then amp

• In turning off , amp first then mixer


If hum still persist, without the mixer connected

then speaker amp may need servicing.

Jul 31, 2012 | Samson Auro D415A Speaker PA Active

1 Answer

My sc40r amp started humming really loud after i had turned it on... it played perfect the night before... but when i went to go play it this morning it started humming really loud then stopped and began...


You take it in for electronic repair. Unless you are electronically adept at troubleshooting and repair this is not DIY. Probably one side of the PA transistors has shorted. You can blow the speaker if you keep trying to use it this way.

Sep 24, 2011 | Rogue SC40R 40W 2x8 Stereo Chorus Guitar...

1 Answer

I have a Eupoport EPA 900 system. Recently I started getting a consistent, low pitch and fairly loud hum out of both speakers. The hum adjusts with the volume, and I have tested it with various working...


Is the hum there with NO input cables connected? If not, you have bad cabling. Make sure you use only XLR to XLR mic cables and not the junky ones with a 1/4 inch plug that are for Karaoke machines. These devices usually use switching power supplies and do not have the power supply originating hum of older equipment. If the volume control adjusts the hum, then the hum originates previous to the control which is either in the preamps or the external inputs.

Aug 25, 2011 | Behringer Europort EPA900 Ultra compact...

1 Answer

Yamaha pt300. was working fine. Now only makes loud humming noise which doesn't repsond to change in volume. Monitor display shows keys register as being played, but no sound can be heard except loud...


Likely the power adapter has failed if it uses one. Try a new one first.

If half the rectifier blows out, a very impure DC voltage is applied which will be heard in the audio output.

Sep 27, 2009 | Dean Dimeblade Tribute Electric Guitar

1 Answer

Yamaha Clavinova CVP-83S NO SOUND OUTPUT


clavinova 83s...comes on but goes off within 20 sec.,sometimes comes on display lights up but no sound or functions?

Apr 01, 2009 | Yamaha Full-Size Keyboard

1 Answer

Fuse blowing on start up on Behringer PMH 518M


Try running the amp with no speaker cables connected. If it doesn't blow the fuse you know it's either your Speakon cables or the speakers themselves that are to blame (it's usually the cables)

If it still blows then there is a more serious problem with the power section.

Jan 19, 2009 | Behringer Pmp3000 16 Channel Audio Mixer

Not finding what you are looking for?
Music Logo

Related Topics:

107 people viewed this question

Ask a Question

Usually answered in minutes!

Top Music Experts

Vito Vacirca Jr.

Level 2 Expert

140 Answers

yadayada
yadayada

Level 3 Expert

76070 Answers

kakima

Level 3 Expert

102366 Answers

Are you a Music Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...