Question about Crate FlexWave FW15 Guitar Amp Combo, 15 Watt Single 8 Speaker

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I have a crate GFX 50 and the effects come in only after about 15 minutes of play.

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This is a warm up issue and can probably best be found by using circuit cooler on suspected components.

Other possible problems may be a bad solder joint or cracked circuit board.

Candle the board with a bright light to look for cracks.

Bad solder joints take experience to spot, but pay particular attention where panel mounted volume controls solder to the circuit board. Looking for the little ring around the solder menicus takes a sharp eye and good lighting. Resolder any suspected bad joints.

Posted on Jul 30, 2010

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1 Answer

Crate club 50 15 inch speaker developes a tremolo sound mildly after tubes warm up


I am Going to do a little guessing. I am not a speaker pro by no means. but i have been using them my whole life.. as a fellow musician. i've run into this half a dozen times. each was different. so you say tremelo effect. could you describe as a harmonic vibration as well." if so look for anything (start w/ the speaker and work your way out) your looking for things like a loose nut or bolt. the speaker should not wobble or move at all. look for separation in the speaker cone and diaphram. then work your way out.. your looking for anything can potentially rattle, and usually against something . check around the tube mount, be careful. dont want it getting broke or you electrified.either that, or turn your effects off. just kidding. gtood luck

Apr 28, 2014 | Music

1 Answer

Effects don't work


On some amps there needs to be a footswitch inserted in the control jack to activate the effects circuit. Contact Crate to see if that's the case with your amp.
http://www.crateamps.com/support/index.php

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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.

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1 Answer

Como resetar o gfx8


zoom GFX-8:
The All Initialize/Factory Recall function is a special function
that lets you reset the GFX-8 to the condition in which it was originally shipped. When All Initialize is performed, all settings of the unit including all user group patches are returned to the default condition. Factory Recall can be used to reset only specific user group patches group to the default settings.
1. Turn power to the GFX-8 on while keeping the STORE key depressed.The display shows "ALL-INIT".
• To perform All Initialize, Continue with the next step.
• To perform Factory Recall, Use the BANK UP/DOWN foot switch and foot switches 1 - 4 to select the patch (from a user group) that you want to return to the factory default condition.
2. Press the STORE key once more.
All Initialize or Factory Recall is carried out.
If All Initialize was carried out,
the unit automatically returns to the play mode.
Note that when All Initialize is executed,
the contents of all patches stored by the user will be overwritten (erased).
When wishing to cancel All Initialize/Factory Recall,
press the EDIT/CANCEL key before step 2.
source: ZOOM GFX-8 User Manual.

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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...

1 Answer

I have a Crate PA-8 4 ohm 150 watt PA head that I run to four Peavy 10" PA speakers (two per side in series). It was very good, clean sound, but the speakers were cheap and may have been pushed too hard -...


150 watts should be easily handled by four Peavey speakers in the connection you described.. If the Peavey's are 8 ohms, then your total load was 8 ohms for the series/parallel arrangement which is well within the 2 ohm drive capability of the Crate according to specs.

I question if you really mean the speakers were in series? This requires a special cable to do this. Now if you mean they were "daisy chained" like the amp went to one speaker and another cable connected that speaker to another, then you REALLY had ALL speakers in parallel electrically which would be at the 2 ohm low limit of the amp... In either case, with only 1/4 of the 150 Watts to each, the speakers should NOT have been damaged. The amp MAY have been damaged. Try each speaker individually at a REASONABLE level to test.

If you plug into the effects loop out jack,OFTEN the connection to the internal power amp is broken so you might have to arrange a special cable as a wye to go back into the power amp as well as your external amp. In any case pwere ALL interconnected amps, etc from the same power source/receptacle for system safety.

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

1 Answer

Have a Crate V50-112.Have had it for 1 year. Replaced tubes 2 weeks ago, turned amp on tonight, started to play, amp went dead. Checked fuses, they're good. Any ideas?


Check for bad tube... it HAPPENS that brand new ones fail... USUALLY if they last 50 hours, they will last for the expected life. The bad tube would likely NOT be the main power tubes, as the amp would still run on one cylinder...

Feb 02, 2010 | Crate Music

1 Answer

Loss of power while playing


If you can solder, try resoldering any connections on the board that appear grainy or have rings. It is likely that after the unit has been working for a while, the heat is causing a marginal connection to open up.

Keep us posted.

Dan

Feb 16, 2009 | Crate FlexWave FW15 Guitar Amp Combo, 15...

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