At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
I have a bassman 400, 350 watt amplifier, the amp turns but no sound comes out. i think its the fuse but i dont know where i can find the proper fuse and holder. where can i get one?
Http://www.fender.com/support/amp_schematics/pdfs/Bassman_400_Schematic.pdf Also note there is a thermal protection circuit and a current overload. If the amp turns on and there is no sound start with the speaker to make sure it isn't blown and work backwards through the wiring and connections up to the crossover circuit (all in one cabinet version). On the head separate versions check for a broken output jack problem. The fuses are 10 amp 250 volts for the 100-120 volt models and 5 amps 250 volts for the 230-240 volt models. NOTE: If you are at all unsure about opening your amp up to work on it, take it in to be serviced. It doesn't sound like a fuse problem to me. Necer work on an amp while the power cord is plugged in. Always replace parts with the proper replacement especially fuses. They are there to protect the circuits. If they keep blowing it means there is an internal problem. Remember that capacitors store a lethal charge and it is easy to touch the wrong thing when you are looking inside an amp even if it has been disconnected from power for a while.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
It sounds like the problem is in the power amp portion rather than the preamp. It is not a fuse proplem. What you discribe will not be user servicable. I'm afraid this will need to go to the shop.
Hi, blowing a fuse in an amplifier is a problem that most guitarists face at one time or another. If an amp won't turn on, or it turns on for a second, then makes a popping sound and turns off, the problem is usually a blown fuse. Though a blown fuse can be a hassle, especially during a performance, it does not have to put a stop to your musical enjoyment. With a spare fuse you can be back jamming to your favorite tunes in no time flat.
Things You'll Need
Fuse.
Instructions
Turn off the amplifier and unplug it from the wall.
Locate the fuse, which is usually found at the back of the amp. The fuse will look like a small black wheel sticking out of the amp with a number and the letter V next to it. For example, 9V.
Gently turn the fuse counter-clockwise to remove it from the amp.
Discard the old fuse.
Insert the new fuse into the empty fuse slot and turn it clockwise until it is firmly in place.
Plug in the amplifier; make sure the power switch is in the off position.
Turn the amplifier on to make sure the new fuse is working properly.
Hey I have the same problem on the one i just bought for 10 bucks, I was wondering if you could tell what the pink tube thing and the white tube things near the semiconductor that was screwed to the metal are? are they capacitors or what? please help.
sounds like you blew a fuse.
a bad ground could've caused this.
refer to the rear of the head.
Most have threaded screw fuses.
Replacements can be found at pretty much any music store
Sounds Like You need a new volume pot you can buy them at radio shack, Best buy, Click Here to see it. Its very easy to replace if you have soldering experience if not it should be to expensive to fine somewhere to do it for you. Hope this helps and if you have more questions let me know. Sincerely, Michael Scott
If you can see where the power wiring comes into the amp there has to be a fuse in there somewhere as the fuse is designed to cutoff all power when overloaded
×