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Marshall MB4410 Bass Combo Amplifier Questions & Answers
Marshall MB4410, with low volume gives no real volume,
Guitar amps have preamp sections (think unpowered audio mixer) and power amp sections (Crown rack-mount amp). An excellent way to isolate audio problems if amp is still producing audio is to check the preamp out (line out). Preamp output distorted = preamp failure. Connect MP3 player to "Power Amp In"...sound distorted = power amp failure. In your case the latter is the case as your "line out" is clean. Also test each speaker for clear sound as speaker cone damage from being overpowered is fairly common. At 300w. I'll assume the failure was not from cranking the volume to loud but a shorted speaker or speaker wiring could zap the power amp in an instant.
Hello, well i just bought
First make sure your guitar can't "hear" the amp as the sound can rattle the strings and have a form of feedback. Stand with your back toward the amp for example. If that doesn't help, take your guitar to the dealer and try it on another of the same type... see if it does the same. Also where you use it, make sure nothing is rattling in the area that can fool you as to how it sounds...
Marshall MB4410 - Dies and comes back to life every few minutes..
Our bassplayer had the same problem with his mb4410.
As it turned out, the fan was not working when the amp got hot. It did turn when cold - go figure!
Swap the fan for a good quality (Pabst, Sunon) 80mm pc fan with 2-wire connection. Three or four wire fans will not work w/out modding.
See your local pc guy and ask for an unregulated, silent 24/7 fans. He will know.
Our bassplayer sold the P.O.S. while still in warranty.
HTH.
Where is the fuse located in the Marshall amplifier mg100dfx
The fuse in a Marshall MG100DFX amplifier is located on the rear panel of the amplifier, near the power cord.
To access the fuse, you will need to unplug the amplifier from the power source, and then locate the fuse holder, which is a small, cylindrical component with a cap that screws off. The fuse holder should be labeled with the appropriate fuse rating for your amplifier.
Once you have located the fuse holder, you can unscrew the cap and remove the old fuse. You can then replace it with a new fuse of the same rating, and screw the cap back on securely.
It's important to note that if your amplifier blows a fuse, it may be an indication of a more serious issue, such as a short circuit or a problem with the power supply. If you replace the fuse and the amplifier continues to blow fuses, it may be necessary to have it serviced by a professional technician.
How to fix my Marshall code 100?
Why is there no sound when my wired headset is connected?
To check that the headphones are connected correctly and there are no loose connections, try unplugging and replugging the audio device. Make sure that the headphones are not plugged into an audio-in or microphone jack if your audio equipment has more than one headphone jack accessible.
Why does my Marshall MG30 DFX make a noise when I turn it on and off. Also the channel switch works intermitently
It's possible that your Marshall MG30 DFX amplifier is experiencing a hardware issue. The noise you're hearing when you turn it on and off could be caused by a malfunctioning component in the amp's power supply or switching circuit. Similarly, the intermittent operation of the channel switch could be caused by a problem with the switch itself or with the wiring that connects it to the rest of the amp.
To troubleshoot these issues, you may want to try the following steps:
- Make sure that all the cables and connections to your amp are secure and not damaged in any way. Loose or damaged cables can cause all sorts of problems, including noise and intermittent operation.
- Check the fuse in your amp to make sure it's not blown. A blown fuse can cause the amp to make noise or to stop functioning entirely.
- If the problem persists, you may want to consider taking your amp to a professional technician for repair. A trained technician will be able to diagnose and fix any hardware issues that may be causing the problems you're experiencing.
I hope this helps! Let me know if you have any other questions.
High frequency noise
"Overdrive Channel: high frequency noise as the gain and volume are increased."
This is the expected result, you are experiencing feedback. Try turning the "Contour" knob all the way to the left and turn down the tone knob on your guitar.
I have a Marshall G100R CD Amp, and I appear to have blown one or more fuses. My question is what is the best, and easiest way to gain access to the fuses in my amplifier?
You said, the best and easiest way.
Since a blown fuse indicates a short, your amp will blow as many fuses as you put in it, until you remove the short.
If it appears that you blew fuses, the main amp would appear to be the cause of the short. The best and easiest way to solve the problem is to take it to the Marshall dealer or an electronics repair shop. In the future, do not connect or disconnect speakers with the power turned on, and don't connect more speakers than the manufacturer recommends. The AC input fuse is inside, very near the end of the AC cord. If the glass is discolored, the fuse link inside the little fuse exploded. If it went out that violently and you replace it without repairing the short, you will get to see it blow again. The reason the fuse is inside is because in the brief second that it takes for the fuse to go out additional damage can be done in the world of solid state electronics. That's since 1972,
Marshall MG250DFX Series Amp gain knob snapped off. How can I replace it?
Is is just the knob has broken (in which case, buy yourself a new knob and replace the one that's there) or is the potentiometer shaft broken too? That's a much bigger job, that involves pulling the whole amp apart and replacing the pot --- you need to get an electronics tech to do it.
Google
mg series knobs
to find replacements --- they just push on.
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