Crate Music - Page 8 - Recent Questions, Troubleshooting & Support

If wires to speaker had been yanked, they may have pulled off the cable at the other end. Also the speaker could have been damaged... check with an ohmmeter.

Crate Ca6110dg... | Answered on Sep 06, 2011

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

Crate FlexWave... | Answered on Aug 31, 2011

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.

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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..

Crate FlexWave... | Answered on Jun 14, 2011

Yes, the pots are replaceable. Removing them from the circuit board requires solder removal tools. DO NOT atttempt to remove these with solder wick. The new high temp solder (ROHS) will surely cause the board to be damaged. I use an Ungar powered solder removal system. The parts can be found at or The part value is marked as is the taper which will likely be an "A" or "B" suffix. Search for potentiometer, slide. You have to exactly match the circuit board pin layout. The distributors have links to the manufacturer's spec sheets to compare. First thing is to measure the travel, then find ones with the right mounting, then the resistance and finally the taper suffix. The parts are typically between $1.50 and $3 each.

Crate CA125DG... | Answered on Jun 08, 2011

sounds to me like your din plug on your controller is messed up ? hope this helps !

Crate FlexWave... | Answered on Jun 03, 2011

Most of these have screws on the bottom... OFTEN they are "hidden" under labels or the rubber feet. For plastic cases often there are snap tabs as well.

Crate Cfs3 | Answered on May 08, 2011


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

Crate Flexwave... | Answered on May 05, 2011

This has a digital reverb unit. The settings are subject to get clobbered I suspect. I don't know if you are using foot switch for the reveb control... You may also have a cable that has come loose...

Here is a link to schematic for your unit:

Notice that the reverb is set by DC voltages from teh setting pots that go to the DSP chip. These setting pots receive voltage from a 16 volt ZENER regulated source. First thing is to CHECK that voltage. If the Zener has opened and you find much over that 16 volts, that is your cause of the problem.

The circuitry is on page 1 in the 3B to 3D lower left of the page.

Crate FlexWave... | Answered on Feb 14, 2011

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

Crate Flexwave... | Answered on Feb 12, 2011

Oops! You may well have fried your amp. Did you check the voltage selector before plugging it in?

Crate Blackheart... | Answered on Jan 06, 2011

It is likely that there is a failure of one of the amps in the unit. It could be a cracked circuit board, bad solder, bad volume control, or a bad compnent in the power amp section for one side. HOWEVER something does NOT compute here as you can't connect more than one speaker to a 15 Watt Crate amp... Maybe you have two of these amps.

Crate FlexWave... | Answered on Jan 04, 2011

I don't know how you know the tubes are good... It is possible they are microphonic... try tapping them with a pencil (only need to worry about the smaller ones).
Beyond this look for cracked circuit board or bad solder... especially near the control pot leads. This is a common problem. Look for cracks near the booard mounting points.

Crate Cfs3 | Answered on Dec 24, 2010

You can probably find them at or

Crate TX 50DB... | Answered on Sep 22, 2010

A possible problem MIGHT be marginal switch contacts on the external foot controller cable. If you are not using the foot pedal, these contacts must maintain contact to keep the same channel selected.

Crate Music | Answered on Sep 20, 2010

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.

Crate FlexWave... | Answered on Sep 16, 2010

I could not find a manual for the footswitch... USUALLY the details are covered in the amp manual it is connected to... and the only issue is if the particular footswitch is compatible with a particular amp.

Crate Cfs3 | Answered on Sep 06, 2010

If you play this loud the amplifier MAY be going into a thermal pprotection area. It would be about as loud as a typical boombox when at safe levels.

If you need louder than that, you need a bigger unit.

If the volume always is strong after letting it rest and cool and then fades as you drive it hard, this is the probable cause.

Crate FlexWave... | Answered on Aug 17, 2010

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