Question about Roland Music
I've been given one of these by a friend. He knows that two of my kids are really enjoying playing their guitars. It's powering up and all the dials and controls seem to be working - display is changing anyway. Trouble is there is no output. Not even a clonk when we plug the amp cable in. I'm trying to find a schematic for this so that I can trace the fault and my boys can start to use it. I've had a look on the internet and found lots of copies of the manual but no schematics. Can anybody help? My two older boys are both guitar daft and they would love to have this working. many thanks
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Posted on Jan 02, 2017
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
The things to check arre FIRST the cable. These often have breaks or bad connectors. Replace with known good one and try it.
Next are the jacks on the guitar and the amp. These go bad and wiggling the KNOWN good cable at each end will flag which or both being bad.
Next are the switches and potentiometers in the guitar. Use some CRC226 sprayed into the pot and switch contacts... use sparingly...
The key is to find which thing or things are bad.
Posted on Sep 15, 2009
SOURCE: My MT-2 wont distort my guitar.
A few things to try....
Usually the adapter will over ride the battery when used.
1) Make sure your 1/4" cables are working properly without the pedal "in-line".
2) Take out battery, and use just the adapter only. Make sure it is the correct and proper adapter that works with Boss. Usually the PSA-120. If you are not using a Boss Adapter, make sure yours is a direct replacement with same specifications. 9V/200mA. And "tip negative". DO NOT use Radio Shack stuff, nothing against them, but there adapters just don't mix well with Boss products and the like.
2) Try just the battery, no AC adapter. Remember to unplug the input when not in use. Saves battery.
Basic rule of thumb...when using correct AC adapters for all your pedals all the time, and all sounds good, then take out the batteries.
If you still experience problems, it would be an internal IC chip most likely. From there post another question maybe.
Posted on Apr 01, 2010
While it could be true that you're having a problem with the guitar or cable as the previouse expert suggested, to say that it can't be anything else is false. It could be a jack problem...it would only be apparant when the jack is making contact with a cable. I do think you should test it with another guitar and another cable but if that is not solving the problem then I bet it's a problem with the input jack of the amo itself or even one of the ionternal components (this is a digital amp and there are MANY components and settings that can trigger a problem like this) If the problem is not solved with a new cable/guitar configuration then it's time to take it to the shop.
Posted on Mar 02, 2011
Fred, thanks so much.
I finally got an XLR-TRS adapter (I live in a small city in Brazil, only way to buy it here is ordering online then sit and wait, :-)) and tested. Got the output I was expecting and also the Phantom Power - I'm no technician but now I pretty sure the problem is this combo XLR/TRS jack. I'll try to find someone to open and replace it. But for now, the adapter will do the trick.
Posted on Nov 28, 2011
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