can you fuck a keyboard by using the wrong power adaptor?

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we've been using a Roland XP-10 and recently lost/left at rehearsal the power adaptor. (Roland brand 9v output 1000m/a)

this week i plugged in with a 9v power supply imagining all would be okay and the sound that came from the amp was really, really muddy.

i'd love for someone here to tell me that all will be okay when i get hold of a replacement Roland power adaptor.

WCS would be that i've fucked the keyboard by using a non-Roland adaptor as ....its not my keyboard ...and we're recording at the weekend.

(a dream would be if someone in east london had a compatible XP-10 adaptor they could lend or sell me.)

thanks in advance for yr help/virtual tumbleweed.

marac

― marcus (d90), Tuesday, 7 February 2006 17:28 (nineteen years ago)

if you can find a mom and pop television repair shop they will help you out.my local shop has saved my alesis synth more than once.

― no bones, Wednesday, 8 February 2006 01:31 (nineteen years ago)

Does the adaptor say whether it's AC or DC? Also, does it indicate any sort of polarity?

The short answer, unfortunately, is "Yes you can. Don't do it again."

― John Justen (johnjusten), Wednesday, 8 February 2006 02:21 (nineteen years ago)

my dad did this once. "whoops," he said, wafting away the burning smell.
"buy me a new one," says I, shaking my head.
"no," he replied.

― the kit! (g-kit), Wednesday, 8 February 2006 12:58 (nineteen years ago)

power adapters have basically these parameters that have to be correct:

AC or DC
correct voltage out
correct power/amp rating (either in W or mW, or A or mA)
correct polarity (neg/pos tip)

they've all got to be matching, except for the power rating, you can always use a power supply rated for MORE power than your device calls for.

― AaronK (AaronK), Wednesday, 8 February 2006 13:45 (nineteen years ago)

thanks for yr helps.

all the above parameters did appear to match up... though i shouldve been a bit more careful.

i'll be able to answer my own question when a replacement adaptor is flown in from germany in the next couple of days (fingers crossed).

― marcus (d90), Wednesday, 8 February 2006 15:21 (nineteen years ago)

they've all got to be matching, except for the power rating, you can always use a power supply rated for MORE power than your device calls for

This depends on the device, but it is not always true.

― martin m. (mushrush), Wednesday, 8 February 2006 22:24 (nineteen years ago)

when is it not true?

― AaronK (AaronK), Wednesday, 8 February 2006 23:30 (nineteen years ago)

Okay that wasn't as funny as I thought it might be.

Sorry I was kinda in my cups earlier and thought it would be funny to sound like I was issuing a serious warning.... Sigh. Don't mind me. Drinkin...

To be serious though, the most common mistake is to have a DC adapter and accidentally mismatch the polarity of the tip or center or whatever. Nowadays things are more standardized so it's less common, but it's a much easier mistake to make then missing the fact that the adapter says "12V" and the keyboard or other device says "9V in."

― martin m. (mushrush), Thursday, 9 February 2006 02:06 (nineteen years ago)

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