electroharmonix minisynth

[sam]

I have just got a non working minisynth...I need to know what power supply is used..?

Anyone ...?

[sam]

I think it's 9v....But i get no sound.
All the chips inside have their values rubbed off...

Anyone serviced one..?

[sam]

The battery wires are missing...I have no service info and i would like to know where to put the wires on the pcb.

HELP....

[minime123]

you can always try to find a tech to repair it for you, but thats obviously not gonna be free.

[sam]

you can always try to find a tech to repair it for you, but thats obviously not gonna be free.

I do repair synths....I do help others ....I will work out this problem but because i have no schems i thought it was reasonable to ask anyone who has one to make life easier..

What's the point of this help section....I will always help someone if possible.

[Clavier]

For what it's worth, I would readily help in every way I could if I had any experience with one.

[sam]

For what it's worth, I would readily help in every way I could if I had any experience with one.

And that's the way it should be, I repair all my own synths and restore them.

I am qualified in electronics but sometimes when working on these things experience plays a big part.
I only ask if someone who has one can just open it up (4 screws) and tell where 2 wires go.

If i can find the schems i wouldn't have to bother anyone here.

Drop the sarcasm i just want to fix my synth.

[Clavier]

It wasn't sarcasm, I like helping people fix their junk!
It was completely genuine!

[sam]

It wasn't sarcasm, I like helping people fix their junk!
It was completely genuine!

NO..It wasn't you i was mad at....I liked your comment..

It was the other post about going to a tech and it won't be free or something.

[minime123]

there was no sarcasm intended. what i meant is that if you cant find help for free, there are techs who would be happy to repair it for you for a price. thats all, no need to make it more than it was! good luck.

[sam]

there was no sarcasm intended. what i meant is that if you cant find help for free, there are techs who would be happy to repair it for you for a price. thats all, no need to make it more than it was! good luck.

It's ok.. ..I will look at the circuit board and work it out, Anyhow i am very exhausted looking after my 3 month baby daughter.....

I just want to get it working....with little time you see.

[cornutt]

I used to play an E-H Mini Synth, and to be perfectly honest, I don't think it's worth fixing. Be that as it may, 9VDC is the correct power supply. I have a vague recollection that there is something you have to do in order to use an external supply instead of a battery -- move a jumper on the board or something.

[sam]

I used to play an E-H Mini Synth, and to be perfectly honest, I don't think it's worth fixing. Be that as it may, 9VDC is the correct power supply. I have a vague recollection that there is something you have to do in order to use an external supply instead of a battery -- move a jumper on the board or something.

That's interesting..I need to first work out if i am using the right power supply and because the previous owner has tried to 'fix it' I now have to rewire it correctly. I am searching around in the dark at this point with no instructions or schems.

That's why i need this very basic info as a start point. Before i start fault finding.

Non of the chips have any info on them...Strange.

[sam]

I contacted electro harmonics...They will look for the schematics and send them to me here in Europe.

That's really good service....

[sam]

I have now fixed it...It was a 2n5088 transistor that was faulty.

I have the schematics if anyone has problems and i can be of help.

It's a nice synth though..A very earthy and unique sound.