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Amps broken need to fix it

Looking for a schematic diagram for a crate mx120r guitar amp

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  • mclobo85 Apr 19, 2009

    need a schematic or circuit board diagram for a crate mx120r guitar amp

  • Anonymous Mar 14, 2014

    XT15R Crate amp Schematic

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Their may be a schematic on the inside of the amp.I don't remember if Crate puts one or not. And I have had several Crate amps. never needed repair except for tube replacement. If there is not one in side , go here and find what you need . http://www.crateamps.com/support/warranty/ Good luck DFD please rate me TK U

Posted on Apr 19, 2009

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Posted on Jan 02, 2017

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The input that must be replaced on the crate gx140c guitar amp is integrated as far as I know there are no visible wires from the input to the board, thanks joe patch


I was afraid of that, for one thing, now it doesn't sound like that is the problem unless you see physical signs of it being broken. The problem is more than likely somewhere in you output power amp. I will look for a schematic and see if I can help you troubleshoot further. If you don't here from me soon, remind me. (just in case I forget)

Mar 03, 2013 | Music

1 Answer

Where is the serial number on a crate amplifier


Real basic owners manual is here:
http://www.crateamps.com/pdf/manuals/CA6110DG_OM.pdf

Look at the chassis, or pull a part number off the original speaker to match speaker and back cross reference to the amp versions that used it. The OM is at least good enough with the block diagram to allow it to be serviced easily enough.

Feb 21, 2012 | Crate CA6110DG Gunnison Acoustic Guitar...

1 Answer

I need the schematics for a Marshall MG-10KK guitar amplifier in order to repair it! I'm a good technician but I don't speak english very well... rsrs Thanks!


Most of the problems with the small guitar amps are blown power amp chips. They usually use chips like the TDA2030 which look like a power transistor.
Most other problems involve broken connectors, bad solder joints or cracked circuit boards. The power supply area is so simple one doesn't need a schematic for that part which is usually just three terminal regulators for +/-15 volts. Schematics are often hard to find.
Try this site, although this is a different model, much of the schematic will likely be the same.

http://elektrotanya.com/marshall_valvestate10_10w_8001_8010.pdf/download.html

Nov 17, 2010 | Marshall 15 Watt Guitar Amp

1 Answer

Crate GTX-30 Guitar Amp Schematic... The thing blew, and I need to replace two components...


Hi. use this link to check for the schematics.


crateamps.com/support/discontinued.php

or

music-electronics-forum.com/sitemap/f-60.html.

take care.

May 31, 2010 | Crate FlexWave FW15 Guitar Amp Combo, 15...

1 Answer

I have a Fender Telecaster guitar and a Crate amp that cuts out i


The next time it stops, unplug the cable from the guitar and touch the tip of the connector with your finger. If the amp hums, then the amp is still working and the problem is in the guitar. If there is no hum from doing this, then the amp has am intermittent.

Try this before it fails to see what to expect in the way of the hum from this test.

Common problems with the amp are OFTEN with a broken input connector or bad switch on the preamp output jack if it has one.

There are MANY other things and without troubleshooting it is hard to steer you to a fix.

Mar 26, 2010 | Fender '72 Tele Deluxe Electric Guitar

1 Answer

I have a Crate GT 15, not getting anything to the speaker when I plug in.


Do you have electronics experience? Inspect the amp for broken or cold solder joints and any burned components. Check to see if the fuse blew and that the output IC's or transistors (not sure what Crate used in these) are not bad. Check your speaker wire as well.

Jan 15, 2010 | Crate FlexWave FW15 Guitar Amp Combo, 15...

1 Answer

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.

Jun 28, 2009 | Crate FlexWave FW15 Guitar Amp Combo, 15...

2 Answers

Looking for a circuit board manual or diagram for a crate mx120r guitar amp


You can try Loud Technologies @ 866-858-5832, techmail@loudtechinc.com.

They hooked me up with parts and schematic for my Crate G212XL.

Apr 18, 2009 | Crate FlexWave FW15 Guitar Amp Combo, 15...

1 Answer

Plugging line level into my crate TX15. all inputs sound distort


guitar amps are all set to a low Z resistance configuration. wich are made for guitar only. make sure you are using the right cables.
you need sheilded guitar cable not unshielded speaker cable in many cases these cables look exactly the same. look at your cable look for the words speaker or instrument. you need the instrument cable. if you still have that problem. then you may just not be satisfied with the quality of the amp it self.

Feb 26, 2009 | Crate FlexWave FW15 Guitar Amp Combo, 15...

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