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Guitar amplifier schematics

Kustom trt 100 lead tube amp

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

danforddan1
  • 192 Answers

SOURCE: amp turns on but no sound even with diff guitars and cords

Hi Dan
I wish I could just say what to fix, but you can not do this at home. Line 6 is a great amp and worth the time taking it down to the music shop , to be looked at an give you a repair estimate. good luck keep on rocking in the free world. DFD

Posted on Apr 13, 2009

  • 153 Answers

SOURCE: crate tube amp will not power up but cooling fan tries to run

Yes.
Are you saying that the only indication that it is running at all is that the fans are running? So the tubes don't light up? No indicators on the front of the amp?
Power supplies that provide multiple voltages, which your amp has, can provide some of the voltages while having a problem that prevents them from providing others, all while not blowing a fuse. If you are not confident in your ability to work on a piece of electronic equipment that has 120VAC coming in and at least 175VDC or more present inside it, bring it to a service center.
The good news is that it is probably not horribly serious. Problems like this can almost always be repaired in a cost effective manner.

Posted on Apr 24, 2009

  • 7 Answers

SOURCE: bass amp blowing fuses

Hi

Go to www.ezrepair.ca and send it to us.
We will diagnose your unit for free and give you an estimate in a 48H maximum period.

Posted on Jun 28, 2009

  • 417 Answers

SOURCE: Searching for a schematic diagram for a Marshall

Try this:

http://www.schematicconnection.com/store/asp/prodtype.asp?prodtype=195


Posted on Apr 01, 2010

  • 2 Answers

SOURCE: I need the schematics for a Marshall MG30DFX

If you still want the schematics for the Marshall MG30DFX Steve I have them and can email them to you if you want

Posted on May 16, 2010

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1 Answer

My Kustom HV100 amplifier turns on but takes forever to make sound. When it finally works it stays on the rest of the night. How do I fix this?


if you have replaced the preamp tube than try looking at the capictor. i had just bought one and i thought the tube was out turned out i was worng

Jun 07, 2011 | Kustom High Voltage Hybrid HV100 Guitar...

2 Answers

I have a Kustom HV 100 hybrid tube amp. When I power it up, It will play normal for about 5 seconds and then the volume drops off. The preamp tube is only about 2 months old and this amp only gets played...


After the volume drops off, let the unit sit idle for a minute and then try it again. If the volume has restored for another brief period, suspect the filter caps are weak and voltage drops when you start driving the unit. In any case you need to have it serviced. Unless you can see the heater in a tube going out with vibration this may not be a DIY repair. If you see purple glow in a tube, replace it.

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1 Answer

I have my first ever electric guitar with a kustom dart 10 amp. I understand that the amp has to be plugged in to the mains through a power cord, but the kustom dart 10 brings none. Is this normal.?


No, there is a cord. OFTEN the cord is buried in cavities in the plastic foam or in cavities in cardboard like spacers in the original box. For some small amps the cord is permanently attached and is coiled up in cavity behind the speaker.

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1 Answer

Could I gut this Amp and MAke it Tube?


Maybe. The cost involved wouldn't reward you enough. Here are some links for you:http://www.drtube.com/marshall.htm and http://duncanamps.com/index.htm and http://www.ampix.org/ If you have all the tools, parts, schematics and above all experience. You may end up with something you like. Personally I would look for a vintage Marshall that needs a rebuild and start there. You will end up with a great amp and the experience you need to mod the MG100DFX if you really want to do it. Hope this helps.

Oct 21, 2010 | Marshall Mg100dfx 100-Watt Combo Guitar...

1 Answer

I can turn it on and i hear the fan going...but it doesnt make any sound when i strum or anything...please help!


There are some basic things you can try before you suspect the amp. Does your guitar cord work in another amp? Is your guitar sending sound through your guitar cord? Without any thing plugged into your amp can you hear a slight hiss when you turn your controls up on your amp? Here is a link to some things you can do to troubleshoot the problem:http://www.geofex.com/ampdbug/ampdebug.htm Even though the info is for tube amps a lot of it also applies to solid state (transistor) amps like yours.If it turns out to be the amp and you don't feel comfortable working on it and have no one that you know personally to do it you are best served by taking it to a certified Marshall repairman who will have the tools, parts and schematics to help you.

Apr 18, 2010 | Marshall MG100HDFX 100-Watt Amplifier Head

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