Question about Crate Flexwave Fw120h 120 Watt Head Dsp Effects - New

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Crate flexwave 120 tuner and all effects stoped working

Posted by jralph1400 on

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  • Anonymous Mar 27, 2014

    crate flexwave 120/212, when i change the foot switch the chanels will change the the blue light will not light up and the effects loop in the back is not working

  • Anonymous Mar 27, 2014

    when i try to switch the chanels the clean and overdrive work but not the other

  • Anonymous Mar 27, 2014

    when i step on the 3rd switch which i think is high gain nothing switches

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2 Answers

Tim Lammers

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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??crate flexwave 120 tuner and - 10_29_2011_6_25_35_am.jpg

Posted on Oct 29, 2011

  • Tim Lammers
    Tim Lammers Feb 18, 2012

    I have a schematic of the amplifier but not for the DSP part itself. I have contacted serveral companies but they all dont have new boards on stock...

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Fred Yearian

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Often the tuner and effects operate off of a 5 volt power supply and if this part of the main supply fails, the tuner and effects cease operation. I could not find a schematic to give further info.

Posted on Aug 07, 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...

1 Answer

Dsp quit and tuner quit working


Both those LIKELY run on a 5 volt supply within the unit. Check for the presence of that voltage... some new stuff MIGHT be 3.3 volts DC, but you should find those voltages. If missing, it may be a shorted electrolytic filter cap OR the filter cap associated with creating the 5 volts from the supply. You really need the schematic for this... try to procure one.

Sep 13, 2011 | Crate FlexWave FW120H Guitar Amp Head with...

1 Answer

Flexwave 120H Speaker wire shorted amp won't work


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

Aug 31, 2011 | Crate FlexWave FW120H Guitar Amp Head with...

1 Answer

Sound is shorting out...its not the cable that I am using I have no trouble with it in any other amp. The overdrive channel does not work at all. And randomly all the effects will just decide they want to...


It sounds like the DSP processor is either about to go out, or is mostly there. Have a qualified amplifier technician take a look at the DSP. Also look up the cost of a new one.

Hope that helps!

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/cameron_463100ffd54b591d

Feb 12, 2011 | Crate Flexwave Fw120h 120 Watt Head Dsp...

1 Answer

I need schematics for this amp. know where I can get them?


Josh,

I also need schematics for this amp. How about whoever finds it first shares with the other?
Cool, Thanks,
bob at stumpweb.com

Jan 27, 2011 | Crate Flexwave Fw120h 120 Watt Head Dsp...

1 Answer

Basically i cannot seem to make the pedal work in tandem with my crate flexwave 120w 2x12 dsp amp i prefer to use the built in dis,chorus, and delay effects but can find no way to put the hb01 behind the...


Norrmally you run the guitar into the pedal and then into the amp. IF you want it behind the built in effects, The look on page 6 of your users manual showing the special cable you will need to do the "insert" of your effects pedal.
If you don't have a manual, download it here:

http://www.crateamps.com/pdf/manuals/FW120H_OM.pdf

Jan 11, 2011 | Behringer HB01 Hellbabe Wah Pedal

1 Answer

CRATE GX- 212 HUMS WHEN TURNED ON AND CHIRPS WHEN SHUT OFF. NEED SCHEMATIC AND ADVICE TO ISOLATE THE BAD CAP IN WHICH CIRCUIT THAT IT IS OSCILLATING.


Witth an oscilloscope analyze the ripple voltage across C67, C70, C14, and C12. Pay close attention to the last two of these which are on +/- 15 volt lines.

The "chirp" when shutting down is LIKELY normal and would probably be from teh DSP effects unit as it goes down. The voltages go out of the operating range and the device essentially goes nuts for a second or so.

Sep 16, 2010 | 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, [email protected]

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

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

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