Crate guitar amp vfx 5112

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

Lawrence Nentwig

• 11 Answers

SOURCE: NO sound through the AMP even though the power light comes on

Not a fuse. First thing, to check your speaker (amp unplugged, of course), touch the + and - speaker connections to a 9V battery. If you don't hear a pop sound then your speaker is blown. Thus, no output sound. If speaker is OK, then the output IC is your problem.

Posted on Jul 25, 2009

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

SOURCE: looking for a circuit board manual or diagram for

try the Crate Website
http://www.crateamps.com/support/discontinued.phprate

Posted on Aug 20, 2009

SOURCE: Buzzes and feedback

Make sure the "ground lift" option is used on the direct box.

DO NOT UNDER ANY CIRCUMSTANCES use a headphone output jack as the output of this unit. The headphone jack is for HEADPHONES that have no return to ground. Use of this as drive to a sound board is sure to cause problems and in some cases can fry these amps due to the circuitry.

The cable used to go to the direct box should be very short and high quality.

You should source the power for this unit from the SAME source and receptacle as your sound board if at all possible.

Posted on Nov 08, 2009