Question about Roland Boss DR 880 Dr Rhythm Drum Machine

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Bought my dr 880 from music store with no power adapter. Ordered 14v adapter off internet. Screen lights up but is blank no words no sounds

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Boss DR-3 Dr. rhythm LED screen lights up by does not show any information. what can I do to fix problem?


take it appart. there is a conductive rubber between lcd pannel and the pcb use widow washer fluid without amonia to clean it

Jul 20, 2016 | Roland Boss Dr. Rhythm DR-3 Drum Machine

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RC looper and DR880 syncing.


RC-50 & DR-880 Setup
Rather than using the RC-50 to change patches on the DR-880, I have connected an FS-6 footswitch to both the RC-50 & DR-880. This gives me control of both units, I can select up & down through the patches easily.
Use a dual TRS connector and 2 stereo "y" cables connected to ports 1,2 & 3.4 on both units.
Once connected, you will need to assign the control function for each control port. I assigned Patch Decrease to CLT 1,2 & Patch Increase to CLT 3,4 on both units.
I then connected a MIDI cable from the RC--u control of start/stop & tempo via the RC-50 footswitches.

on Feb 25, 2015 | Roland Boss RC50 Loop station (with )

1 Answer

PSR e423. Why does it have a blank screen and no sound?


Blank screen and no sound, can occur because of damage to the power supply circuit in the PSR-E423.
Circuit power supply is still working but the voltage is not sufficient. This is indicated by a lit LCD screen but does not appear any character, and the sound did not exist. It is a matter of hardwares, so it can not be reset by software.
Should be fixed to the experts.
Do you use the original adapter? Also check the voltage.
Maybe, it is not known why, a voltage adapter has been dropped.

Aug 25, 2015 | Yamaha Music

1 Answer

GPX Karaoke Party Machine sound but no words


I think the backlight of your screen is out, which can be complicated. I think it is working but just not lighting up. I'll look this thing up and let you know more later. Please send me a make and model number when you can.

Mar 03, 2013 | GPX Karaoke Party Machine

1 Answer

Backlight on boss dr 880 failed


IM LOOKING FOR A LCD BACKLIGTH REPLACEMENT PART

Feb 07, 2013 | Roland Boss DR 880 Dr Rhythm Drum Machine

2 Answers

Dr. beat will not turn on


Most of the problems with these type units are due to dead batteries or incorrect power adapters and broken power jacks, Check for those things use ONLY the original type power adapter.

Aug 02, 2012 | Roland Boss DB60 Dr Beat Metronome

1 Answer

I have a casio keyboard WK 3000 and when it is powered up, the screen is frozen. When the keys are pressed, no sound comes after. Also when i try to shut the power off, it doesn't turn off. The only...


Make sure you use ONLY the correct adapter for power. Too small an adapter might cause it to light up but will not operate the unit. The correct adapter should say AD12 on it. It is a 2 volt, center pin minus, and probably 1 or 2 amps capability. Nine volt adapters used with pedals or universal adapters will NOT work with the WK3000.

Jun 26, 2011 | Music

1 Answer

Hi, I ordered my Adam a7x from america to Australia. When receiving them, i plugged in australian adapters (300/500volts). But when powering them up, unfortunately the light went on and then a...


Did you just use adapters or actual step-down transformers?
A lot of equipment today is 110/220 auto-switching, but if you get something built for 110V (120V, 100V, markings may vary) only, then you need more than an adapter, you need a transformer!

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1 Answer

I have a Zoom 9000 Guitar effects processor, and although I have its original adapter, and although its red light flashes and power is on after plugging in everything, I could not get any sound from my...


I'm a Zoom 9000 owner (since '93, I think) Did you try batteries only? Are you plugging the guitar into the "in / power" jack and not mistakenly using another jack? When you plug in the guitar, in to the Zoom 9000 does the window come on with the settings shown? Sorry, I know some of these are obvious but always the chance of us being human. If all that seems fine, then I would read though a manual to see if maybe it is a setting problem, i.e., sound somehow got inadvertently turned off. If you don't have one, an internet search will lead you to one. Sorry, wish I knew more.

Oct 14, 2010 | Zoom A2 Acoustic Effects Pedal

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