Question about Audio Players & Recorders

1 Answer

Humming noise when amp is switched on, nothing pluged in, make - marshall g30r cd

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 8 Answers

(Maybe) Seems like a problem with the reverb.Try opening it up (while un-plugged.) and try cleaning it out and checking there isn't any loose conections.

Posted on Nov 24, 2008

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Marshall guitar amp humming noise


Boy, there are a bunch of things which can cause that, Jammy. First of all, is the wiring in your home, or at gigs or wherever providing an adequate ground ( I assume you have a 3 pronged plug to your amp). Does it do this everywhere? If it does,you've likely got an internal problem in the amp. i can't help you with that. There are too many possibilities. Is this a tube amp ? If it is ( I kinda think all Marshalls are), then I have no idea. I realize this is not answering your question, but the causes of the problem are vast. Take it in to a reputable guitar shop. That's my answer. . .

Mar 11, 2014 | Marshall Music

1 Answer

Guitar amp continuous humming from speaker


Firstly, do not disconnect the speakers from the amp when it is on. Damage is possible.

You have a bad ground somewhere in the hookup. The first suspect would be your guitar-to-amp cord shielding connections at each plug, then, the wiring in your guitar. Try changing each of these to another as a trial, one at a time.

Here is Marshall's spiel on hum

http://www.marshallamps.com/support/faq/hums-hisses/

Mar 11, 2014 | Audio Players & Recorders

1 Answer

There is no sound coming out of my Marshall 100 watt tube amp head?


make sure the standby switch is operating correctly.Sounds like the power tube.

Dec 18, 2013 | Marshall Amplification Marshall JCM800...

1 Answer

After a gig last night we tried our Marshall JCM 2000 DSL401and it had developed two noises without anything plugged in. The first is a transformer hum that I'd never noticed before and when standby is...


Likely the filter capacitors have a problem. Best to take this in for repair... it is ODD that there is noise with the standby switch is in standby... That makes no sense... In standby it appears that power is removed from the power amp high voltage so nothing should come through the speaker... Unles maybe one off the power tubes had a total meltdown which should have blown the fuse.

Sep 10, 2011 | Marshall Amplification Marshall Cover For...

2 Answers

Well i used to have this really bad guitar that has this grounding problem (humming all the time unless u lower the tone or touch the strings or any metal object on it) well i always blamed the guitar for...


Hi,

This would only mean two things:
1. you have a bad capacitor in the circuit or the grounding on the circuit is broken and not filtering the obvious line noise from the circuit.

2. You have what is called, dirty power. That is when you have some kind of electrical device plugged that generates line noise which can be even a florescent light as they generate line noise.

Please take the following steps to narrow down the issue.

Take your setup and plug it in some where you know others can setup their rigs and it is using clean power. If, the humming goes away then it is dirty power where you originally setup.

If, it is still humming then you will need to take your equipment to a qualified marshall dealer have them look at it.

Jul 13, 2011 | Marshall Mg100dfx 100-Watt Combo Guitar...

1 Answer

My Marshall Haze 40 Amp started making a very loud humming noise after a couple hours of playing.I let it cool down,and turned it back on and the noise came back after a few minutes


may be one of the electrolytic capacitors in the power supply has become leaky...this is a common problem among amplifiers...so you let it cool down..then after a period of time the capacitor heats up and then causes the hum...the power supply caps filter out the 60 hertz ac line noise...which is probably the frequency of the sound it is making...this is a good indication of these caps going bad....another thing you can check is to see if the amp is properly grounded(eg: the ground pin on the plug is present) and that you dont have an open cord or input

Jul 10, 2011 | Marshall Amplification Marshall Haze 40...

1 Answer

I get a humming sound when I plug my Gibson SG straight nto the amp. The noise fades and strengthens depending the positioning of the guitar in relation to the amp.


Your Gibson is sensitive to magnetic fields You need to keep the guitar about 10 feet away from the amp as the power transformer is radiating magnetic fields that is causing the hum. Solutions: there aree several... most are NOT practical... such as encasing the transformer of the amp in Mu-Metal shielding. Changing the transformer to a toroid type (they should deliver them that way) encase the amp in a thick steel cabinet... all this is ridiculous... putting distance between teh amp and the guitar is probably the only practical solution. The level given any particular orientation should fall off with the square of the distance. Note that OTHER stage equipment also will have transformers that radiate. Much of the new amps do NOT have power transformers that run at low frequency so they don't have this problem. Marshal is old school and they use the older power supply designs that radiate the magnetics.

Apr 16, 2011 | Marshall Amplification Marshall MG15FXMS...

1 Answer

Marshall MG100HDFX, VERY loud painful humming/noises as soon as the amp is turned on. Cant be adjusted by volume or anything, is this a connection problem?


Likely the filter capacitor(s) have failed OR the power amp has shorted driving DC with ripple into your speaker (very bad). Take it for repair before damage might be done.

Jan 10, 2011 | Marshall MG100HDFX 100-Watt Amplifier Head

1 Answer

Popping noise


Your welcome. I'm glad I could help and if it came that way marshall should do it for you.

Apr 25, 2009 | Marshall 15 Watt Guitar Amp

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

586 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

kakima

Level 3 Expert

102366 Answers

 Grubhead
Grubhead

Level 3 Expert

4853 Answers

The Knight
The Knight

Level 3 Expert

72640 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...