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Need amp schematic for a Crate model vc6112 - Crate Music

Posted by Terry Downing on

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Terry

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  • Crate Master
  • 11,377 Answers

Web page with schematics and requests:

http://music-electronics-forum.com/t26486/

http://music-electronics-forum.com/attachments/15279d1315547654-crate-vc6112.pdf

http://music-electronics-forum.com/t16609/

http://music-electronics-forum.com/attachments/7268d1260872380-crate_vc6112_271pwa_5.pdf

http://music-electronics-forum.com/attachments/7269d1260872394-crate_vc6112_271sch_5.pdf




http://music-electronics-forum.com/sitemap/f-60.html




User guide at link below from 1998 has mailing address in St. Louis.


https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0ahUKEwit2JO06LbZAhVG2GMKHflPAxEQFgg4MAI&url=http%3A%2F%2Fpdfstream.manualsonline.com%2F6%2F6d0e7f56-c06e-40bc-9925-bb1c66338de7.pdf&usg=AOvVaw1Qy5Pze8vKekErxgjmMg0U




Crate VC 6112 Owner Manual

Posted on Feb 21, 2018

Testimonial: "Thanks for the info, I had to dig around a little for it but it was on the 10th comment. Thanks again"

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5 Related Answers

Anonymous

  • 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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Anonymous

  • 1469 Answers

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

John McPherson

  • 1212 Answers

SOURCE: 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.

Posted on Feb 21, 2012

John McPherson

  • 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

gopakumarg43

The Knight

  • 76466 Answers

SOURCE: Schematic diagram for crate taxi50 amp

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Posted on Mar 20, 2015

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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

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