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CRATE G80XL Schematic

I need a Schematic for a CRATE G80XL Guitar Amp

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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danforddan1
  • 192 Answers

SOURCE: amps broken need to fix it

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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bolinlamar
  • 157 Answers

SOURCE: Crate GX-20M burned resistor + popped cap values?

go to
http://www.crateamps.com/support/index.php
you may find what you are looking for there.

Posted on Aug 20, 2009

  • 5603 Answers

SOURCE: 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.

Posted on Mar 27, 2010

SOURCE: Crate GTX-30 Guitar Amp Schematic... The thing

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.

Posted on May 31, 2010

  • 1212 Answers

SOURCE: Need schematic for Crate PCM-8 DP+

Without a schematic you can still trace the circuit to locate the fault.

Put a music source or sound source into the bad channel and a good channel, and with an oscilloscope or with a pair of high impedance headphones with test leads on the ends- you can set up a low z headphone with an impedance match trasformer, make sure you have test prod ends on one of the leads. The other can go to a chassis ground. Start at the input and work your way forward comparing the signal between the good channel and the faulty channel. When you lose the signal or you encounter severe distortion, you are in the vicinity of the defective part.

Common failures are a Deffective 4558 or TL072/TL071/TL074 IC chip. You may have a faulty electrolytic capacitor, or even a faulty bypass caoacitor in general. Bad solder connections, even a broken fim resistor.

With the IC chips, the usual power pins for an 8 pin plastic or ceamic DIP are pins 4 and 8. usual outputs for the 8 pin are 1 and 7 the remaining pins are the inverting and noninverting inputs. 2 and 3 and 5 and 6.

Also check switches and especially those with interupts on the input and output jacks- they can get dirty.

Posted on Apr 11, 2012

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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

Buzz across all channels in crate rfx120


I also have this issue. Same crate combo amp. There is a loud buzz emitted only when there is a cable plugged in. Cables and instruments checked good, only possible issue is inside the input of the amp. Popped it open, solders and connections were intact and appeared solid. Anyone have a guess as to why this is happening?

Feb 12, 2012 | Crate Music

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

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

Dirty high switch on a Crate practice amp


NEVER use switch cleaner such as DeOxit on pots !!!!!

I have used CRC226 available at Home Depot electrical dept.

I SUSPECT that the resistance element in that pot is cracked. This is common if the knob sustained a hit. Replacing the pot is the only cure if the element is cracked.

Reviewing the schematic, ALL audio passes through the wiper on the HIGH tone pots. If the wiper is intermittent, so will be the sound.

If your unit is solid state amp, the pot looks like a 10K ohm LINEAR taper.
If you have a tube type, then the pot is a 250K ohm LINEAR.

Note that the other tone pots in the units are AUDIO tapers, but the high is a linear taper.

Get repair parts from either DigiKey.com or Mouser.com

Mar 23, 2010 | Crate Music

1 Answer

Amps broken need to fix it


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

Apr 18, 2009 | Crate Music

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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