20 Most Recent Roland Cube-20x (20w 8" Modeling Guitar Amp) Questions & Answers

Yes, the jack MAY actually be broken. It will need to be serviced. Run cables through the handle to avoid plugs from being yanked sideways and breaking the jacks.

you can use the record outputs to run the signal into a stereo receiver without problems, though it would likely sound better with a shure sm57 microphone hooked up to a mixing board or other instrument amp.

the record output should be PERFECTLY balanced to hook up to a consumer-level stereo reciever with NO distortion; however, this record output might be too loud for another instrument amplifier or a mixing board; hence, the microphone in the latter situation.

short answer- "yes, but..."

Thee internal fuse should have protected it.

Here is schematic:

http://elektrotanya.com/roland_cube-20_combo_sch.gif/download.html

Scroll down on page and click on "Get Manual"

The winding is center tapped. It generates +/-24.5 volts DC. Based on it being a capacitor input filter, we need a peak voltage about 1 volt higher to account for the droop of the capacitor and the .7 volt drop of one silicon diode...

Since we need 25.5 volts peak then we need that divided by 1.414 RMS out of ONE side of the center=tapped secondary... So our secondary voltage is 18 volts either side of center.

You will need a 36 volt center-tapped secondary. Here is one that would work:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=162J36-ND

This has two 18 volt windings that you would connect in series and a dual primary you can set for either 120 or 240 input. About $19 US.

Hello. Hello. Generally the upper LCD display of bars is an indication that the internal battery is on it's way out and needs to be replaced.
In case you do not have the owner manuals, they can be downloaded from this address - enjoy: http://soundprogramming.net/manuals/Roland_D-20_Manual.pdf

I wonder why the ribbon cables have been replaced as they do not fail. Check the keys actuate the contacts properly.

I can't! In my opinion, no. Start drift boss customize your car by choosing different colors and patterns.

most likely we dont have crystal balls --need to have diagnosed for problem

Yes, you can use the second pedal on a Roland BK-5 keyboard to transpose the key of the music that you are playing up or down by a semitone at a time. To do this, you will need to press and hold the second pedal while playing the keyboard. You can also use the transpose function in the settings menu of the BK-5 to adjust the key of the music that you are playing by a specific number of semitones.

I am also using IOS and Android. So how can I improve some features? The black screen helps you relax when using the computer too much.

Question edited for a bit more clarity. Video that might help https://www.google.com/search?q=Roland+octapad+spd30+dead Owners Manuals only. https://www.google.com/search?q=roland+octapad+spd30+service+manual ..

It's a Chinese made Roland and no service information is available as when a fault is found the main board is replaced, eliminating the need for service information. I would check that it is a stereo out jack and not mono. If it is a stereo out, check that both input phonos work. If they do, replace the faulty socket or damaged pcboard.

Sounds like a blown motherboard to me. It needs to go to the shop.

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