Novice swede seeks help

[Bubbabubbla]

Hello,
I joined this forum because I have no knowledge of electronics. I have gotten a Tascam midistudio 644 for free which doesent have a powersupply. Seems hard to find a orignal one on the internet.
I have found a video showing how to solder and make your own. But I would like to know if someone is selling powersupplys? I live in Sweden so im not sure what voltage and ground to consider but I'll ask around.

All the best!

Bubba

 

[gyraf]

..you'll need to specify what the powersupply should be expected to be like: Voltages, power(s) and connector type..

 

[Bubbabubbla]

Oh I see,
I did a quick Wikipedia search.
The mains electricity in Sweden has a 230 V residential voltage and a frequency at 50 hz, with a alternating voltage.
The powerplug outlet is a type F.

 

[Khron]

Regarding connector, i'm quite sure the question was more about the type of connector going into the Midistudio.

 

[Bubbabubbla]

It's a 4 pin connector.

 

[Khron]

A photo might help. Not that there's a zillion different kinds of 4-pin connectors in existence...

 

[Schmilsson]

It's a real odd ball connector.

Here's a start. Or maybe a dead end:
https://groupdiy.com/threads/schematic-and-power-supply-requirement-for-tascam-mm-1.64564/https://groupdiy.com/threads/diy-solutions-for-the-ps-m1-tascam-power-supply-new.76901/
The "easiest" solution would be trawling ebay for a year until you find an original PSU. Takes forever and might not be cheap.

 

[gyraf]

..the connector will probably be the hardest part

note that the line named +7V is not actually DC, but AC for timing purposes..

 

[pucho812]

I have seen a few of these for sale at very little money. Might be good to grab one with a psu and have a second one for parts

 

[Disco Volante]

OP disappeared? Multi-purpose PSUs are readily available in Sweden from places like Electrokit, Clas Ohlson, kjell.com, google will give you all of them (strömförsörjning is your keyword).
The plug can be diy'd with a few pieces of a computer connector and hot glue, if you can get the positions and voltages from the schemo...

 

[Whoops]

Best solution is to remove the original connector and replace it with something standard and readily available, like this one:



Changing the connector is quite easy, then after that rolling a +/- 10VDC with 7VAC tap PSU it's also no big deal.
But I'm afraid all of this is too much for the OP's knowledge, specially after seeing that the only person that replied to Jakob questions regarding the PSU was member Eskimo.

 

[Moby]

Here is the guy who sucesfully replaced the connector with the one @Whoops recomended

 

[ruffrecords]

I don't like the bit at 2:07 where he has naked mains connections exposed i the power supply.

Cheers

Ian

 

[Brian Roth]

I don't like the bit at 2:07 where he has naked mains connections exposed i the power supply.

Cheers

Ian

It looks like that external unit is meant to be screwed together and enclose the wiring. OTOH, some heat shrink would be an excellent idea.

Bri

 

[Whoops]

I guess the important thing from Moby's video is that you shouldn't be afraid to replace the original connector and install another one. That video was just an example of someone that has done it.

Like I said, best solution in this situation is to replace the connector for something more common and then build a PSU

 

[Moby]

I guess the important thing from Moby's video is that you shouldn't be afraid to replace the original connector and install another one. That video was just an example of someone that has done it.

Like I said, best solution in this situation is to replace the connector for something more common and then build a PSU

Exactly. The psu itself is really straight forward and can be made by dozen ways. The point is to rid off that weird connector

 

[Bubbabubbla]

OP disappeared? Multi-purpose PSUs are readily available in Sweden from places like Electrokit, Clas Ohlson, kjell.com, google will give you all of them (strömförsörjning is your keyword).
The plug can be diy'd with a few pieces of a computer connector and hot glue, if you can get the positions and voltages from the schemo...

Thanks will look it up!

 

[Bubbabubbla]

Best solution is to remove the original connector and replace it with something standard and readily available, like this one:

View attachment 101058

Changing the connector is quite easy, then after that rolling a +/- 10VDC with 7VAC tap PSU it's also no big deal.
But I'm afraid all of this is too much for the OP's knowledge, specially after seeing that the only person that replied to Jakob questions regarding the PSU was member Eskimo.

Yeah will get help from a friend who is a electrician. Will keep you updated

 

[Whoops]

Yeah will get help from a friend who is a electrician. Will keep you updated

That's a good decision,
he will be able to replace the connector and probably build a PSU for the unit.
If he has any problem in putting a PSU together let us know and we can give some guidance.