Question about Crate FlexWave FW120H Guitar Amp Head with DSP, 120W

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Flexwave 120H Speaker wire shorted amp won't work

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Fred Yearian

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Solid state amps are very subject to blowing out the output transistors if speaker leads get shorted. Take it in for repair.

Posted on Aug 31, 2011

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1 Answer

Crate flexwave 120 head effects malfunctioning


That is probably a momentary switch that is dirty and sticking. These onboard effects on guitar amps are usually nothing more than a computer sound card and I've found bad connections going to and from them as well. I do think that switch is dirty and sticking, though.

Feb 19, 2013 | Crate FlexWave FW120H Guitar Amp Head with...

2 Answers

Crate flexwave 120 tuner and all effects stoped working


Hi there,I have the same problem with my flexwave 120. I opened the amp to measure several capacitors on the small effect circuit board. If one of this capaciters have internal short circuit, wich will effect the others causing effects to fail. I removed them one by one to find possible short circuit. All capacitors were ok. I think the problem is in the processor wich is to diffucult to replace. I think it's easier to replace the effects circuit board. But where do we find this board??10_29_2011_6_25_35_am.jpg

Aug 07, 2011 | Crate Flexwave Fw120h 120 Watt Head Dsp...

1 Answer

Is there a fuse in this amp? is it replaceable without soldering?


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.



Hope it helped..

Jun 14, 2011 | Crate FlexWave FW15 Guitar Amp Combo, 15...

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

Crate Flexwave 120h (Half Stack) volume issues


Perhaps you have a bad capacitor on your volume control?

You can get an ESR meter and test your exposed isolation caps for leakage? The have to be removed so unplug the unit if you are gonna do any work inside the cabinet.

Also, try a shorter or higher quality guitar cable. This will cut impedance between the pickups and the amp.

Good luck and be careful!

Mar 08, 2010 | Crate FlexWave FW15 Guitar Amp Combo, 15...

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...

2 Answers

Crate flexwave 120 head sound cuts out


You have a broken solder joint. You'll have to disassemble the amp enough to get at the soldered side of the circuit board that the controls are mounted to and touch up any suspect solder joints. Just be sure to resolder only the joints that were originally soldered or need to be soldered. Hope this helps.

Jun 07, 2009 | Crate FlexWave FW15 Guitar Amp Combo, 15...

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