That cable is very easy to find, its the three pin ones that get to be frustrating but you can find that cable in use with common house hold electronics.

So is that xbox power cable ok?

-Tristan

I found another cable. So I have

1. power cord rated at 6A at 250v
2. power cord rated at 7A at 125v

The 6A at 250v is better no? Is it good enough for the Sc-8850?

-Tristan

11 watt is not 11 ampere. both cables are far more than enough for your sc8850, which requires less than 0.1A to function.
however, i encourage you to watch out to the 220V input needed. while some materials say that sc8850 has a universal power supply that can go from 100v-230v, i wonder if they are actually refering to "different versions supporting either 110v or 220v", or why is "220V" marked in your picture?
i have seen open-up pictures of the sc88pro, its voltage transformer has several input pillars marked "100v", "120v", "220v", what voltage it would accept depends on which pillar the input cable is soldered to.

C'mon guys, I got a whole directory filled with midi files. Just making sure I don't damage the unit.

-Tristan

Yea you're right. Can anybody confirm this?

-Tristan

I'm going to open it up.

Power supply is buried under the board. That's too bad.

-Tristan

trist007 wrote:

C'mon guys, I got a whole directory filled with midi files. Just making sure I don't damage the unit.

-Tristan

can you send me a list? because i am a fan of midi files too. 😀

Come on, it's not a power supply - it just needs a figure-8 mains cable. The power supply is built in to the unit!

I have the cable. What concerns me is that it says 230v. Im in the US with 120v and I dont want to damage it. I'm wondering if even though it says 230v the unit can take 120v because they claim to be universla. But before plugging it in, I wanted to get verification so that I don't damage the unit. I've looked at pictures of other sc8850s on the web and they say 100v. Would it be safe to plug it in?

trist007 wrote:

I have the cable. What concerns me is that it says 230v. Im in the US with 120v and I dont want to damage it. I'm wondering if even though it says 230v the unit can take 120v because they claim to be universla. But before plugging it in, I wanted to get verification so that I don't damage the unit. I've looked at pictures of other sc8850s on the web and they say 100v. Would it be safe to plug it in?

as i said, different units supporting either 100v/120v or 220v, just have their input cable soldered to different pillars of the transformer.

and to make things more complicated, some units may have been modified by their owners to support different power input. for example, the SC88PRO picture that i saw was manufactured with 110v marked, but power input is resoldered to the 220v input pillar to be used in china.

so, your best solution is to get some help to find out how the input is connected to the internal voltage transformer. and if its indeed connected to 220v pillar, get a 110v to 220v transformer.

Ok thanks. I'd rather have it resoldered to 110v.

-Tristan

I got the power supply out of the SC-8850. Here are the pics

https://darkterminal.net/ps1.jpg
https://darkterminal.net/ps2.jpg

Which one is the transformer?

-Tristan

On ps1.jpg it's the top left black rectangle between the two blue rectangles. I can see the copper wounding. So I guess this power supply does not have 110v rails?

-Tristan

Ah my links were not working. Sorry about that. They are now fixed.

Ok so I found that the transformer is the yellow square. I need to get a 110v transformer that matches the millamps of the one that is already there. Then I would also need to replace that 250v fuse with a 125v one with the same amperage. Would there be anything else I would have to change?

-Tristan

I went to an electronics store and they said it would be near impossible to get that specific part. So I'm just going to buy the farm and get a step up transformer.

You might contact Roland's parts department. Not only will they have access to the relevant service manual, and can tell you exactly what might be needed to switch the voltage type, but they should also be able to supply any and all parts, including an entire 117V power-supply board, if that's what it takes.

I called customer support - parts department and they said the part was discontinued. I asked for the power supply specs like voltage input/output amperage and wattage, but they couldn't help. 🙁 At this point I'd like to hunt down the electronic specs. The owner's manual only has the following.

Power Supply
117, 230, or 240 V AC

Power Consumption
11 W

But I still need output voltage and amperage. Then I'd hunt down a power supply online that matches that. In the meantime I'll use a step up transformer.

-Tristan

-Tristan