Question about Roland Cube-st Battery Powered Amp Cube Street Cubest

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Hello my roland street cube won't power on, either with dc or batteries....adapter working .could a fuse be blown inside circuitboard? thanks

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  • brian hitt
    brian hitt Sep 13, 2014

    Did you get this fixed? I am having the same problem. If so please let us know how. Thank You.

  • Anonymous Sep 27, 2019

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That is the first thing to check. They are most likely inside the circuit board. Remember to replace them with the same voltage and amperage ratings.

Posted on Apr 30, 2011

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Yes. look for fuses and if needed phoe were you bought it or look for a music store that sells roland and ask their repair man. there ge4nerally pretty helpfull.look at the back of your amp for a knob sticking out as sometimes you just push in and turn and it comes out and theres the fuse. check all over the amp actually. hopefully thats it or you will have to take it apart. rock on.

Posted on Sep 27, 2019

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Hey guys, so I know that this thread is rather ancient now, but I just surfed here because I had a similar problem with mine, I managed to fix the problem of the power not turning on with either the power or battery, after it working and then just randomly not turning on.
Here's what I did:
I opened the speaker grill, and took out the right speaker, everything looked fine inside on the circuit board, thinking it might be a fuse - I started looking for it- to no avail.
I was just about to give up when I accidentally bumped the wires to the power switch, and the light came on! Huzzah!!
I played with the wires a bit because the light kept flickering and would turn on once then not again.
I pulled the wires off the switch and took the switch out of the box, then used my pocket knife to scratch away some discoloration from the terminals on the switch, then re-attached the wires, but only put them on halfway, and the problem was solved!
This was only a quick fix, and I went out the next day to Altronics (I'm in Australia) to buy a replacement power switch.
I re-attached the power wires to the new switch, slid them on the whole way and I haven't had a problem with it since!
I hope this helps someone before they take it to a technician who will probably do exactly what I did and charge you $300
Happy Jamming legends! Rock on!

Posted on Sep 23, 2019

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You can sometimes see the fuse if you take out the speakers but if it isn't that it may be your power transformer

Posted on Aug 12, 2011

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Posted on Jan 02, 2017

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1 Answer

Can't get this Roland adapter model ACH-120.


I see that´s a pretty expensive power supply.

option 1: buy an equivalent power supply and adapt the cord.
IN: AC 120V 60Hz 12W
OUT: DC +10 V 500mA
DC -10 V 150mA

option 2: Build a new power supply by a kit
something like this:
http://electronics-lab.com/projects/power/011/DUAL%20VOLTAGE%20POWER%20SUPPLY.JPG

Change the 7812 and 7912 by 7810 and 7910. you will get the 10V needed.

option 3: you can try to repair the power supply. check if there is no broken wires or a blown thermal fuse in the transformer.

Jan 28, 2015 | Roland Music

2 Answers

Roland street cube won't power on due to battery acid leak


Most likely the acid ate the internal power supply, but if you can dis-assemble it and clean any trace of gunk with a toothbrush and electronic cleaner, including the fuse and it's contacts, maybe you'll get lucky.

Nov 07, 2014 | Roland CUBE Street Amp Combo

1 Answer

My Roland Street cube amplifier has a bad speaker- where can I find a replacement speaker?


Rubber cement is an excellent for minor speaker cone damage but if you feel that a replacement is required, try MCM Electronics online. They carry lots-o-speaker replacements. Be sure to match wattage and impedance (ohms) of the speaker though as these are important spec's.

May 21, 2014 | Roland Cube-st Battery Powered Amp Cube...

1 Answer

My roland cube street starts making this really weird loud noise


Hi, Quick Check. Very often the input socket which is soldered directly to the circuit board, will have a broken solder joint. This is common on a very large amount of equipment. Try waggling the plug about and seeing if the noise comes and goes.
Easy fix, re-solder joint. Permanent fix, connect socket to board with flying leads, or fix socket to board with hot glue or epoxy resin.
All the best, Chris the Fader.

Mar 23, 2013 | Roland CUBE Street Amp Combo

1 Answer

Roland cube street water damage repair


What part of it got wet will determine the course of action.

If the whole unit were submerged, the unit may prove more time consuming to try to fix than to locate a used one. However, I have salvaged imersed laptops before. the procedure is not much different- make sure the unit is as dry as you can possibly make by blowing a fan on it for an extended period of time.- Days.

Once dried, use some contact cleaner on the jack contacts and interupts, any manual control and any switch.

You can then apply power. If nothing lights up, check and replace fuses as needed. Also check the power supply board for failed caps or rectifiers.

Once the power supply is known to be functional, systematically check the LCD display and the aspects of the amp that it controls. This board will be the most vulnerable and most likely to be the source of most issues you will encountr.

If the display survived intact, and amp does nto work, apply a signal to the inputs and trace the signal through the amp with a set of headphones set up with test prods. The problem will be where the signal stops.

Apr 26, 2012 | Roland CUBE Street Amp Combo

1 Answer

Roland Micro Cube Amp fuse blew out. How do you fix it?


have a look here:
http://www.ehow.com/how_8698510_fix-roland-cube.html

although it doesn't mention the fuse you will probably find it. Sometimes there is a fuse access on the outer case.

Jan 11, 2012 | Roland Micro Cube Battery Powered Amp...

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