[sdiy] Siel OR400 power supply busted

[M Maeghan Skala]

ok, i will this evening … i'm taking a nap, if I had left the synth alone this would have never happened.

thank you :)

On Aug 3, 2013, at 5:43 PM, Paul Anderson <wackyvorlon at me.com> wrote:

> Make sure you check the resistance. You will still read 120 volts across an open primary. Voltage is potential difference, it doesn't require flowing current to be present. 
> 
> 
> Sent from my iPhone
> 
> On 2013-08-03, at 5:20 PM, M Maeghan Skala <synth.diy at pulsewidthmod.com> wrote:
> 
>> I was able to measure 121 on the wire of the primary, on both of them … so power was going into the transformer, just not coming out of it
>> 
>> 
>> On Aug 3, 2013, at 3:14 PM, ASSI <Stromeko at nexgo.de> wrote:
>> 
>>> On Saturday 03 August 2013, 14:29:43, M Maeghan Skala wrote:
>>>> :( … after switching out some components and much troubleshooting, i
>>>> :finally got the proper readings from the board.
>>> 
>>> Good.
>>> 
>>>> I plug all the ribbon cables in and plug it into an amp … no power
>>>> the transformer's primary wires coming from the connection terminal are
>>>> both reading 121, but the secondaries … nothing, O
>>>> It's not the fuse, I checked that … also, i don't think the primaries
>>>> would be getting power if the fuse was busted.
>>> 
>>> Some transformers have a thermal fuse integrated into their windings.  
>>> Getting no reading at all from the secondaries must mean that the primary 
>>> doesn't get power one way or the other.  Assuming that you can disconnect 
>>> both the primary and the secondary wiring from the inlet and circuit, please 
>>> test with a small DC voltage (diode or connectivity test on your typical 
>>> DVM) that all coils are low-resistance.  If you can measure the resistance, 
>>> then you should do this as well.
>>> 
>>>> This is so frustrating, i finally got the right power readings … and this
>>>> :(
>>> 
>>> Well, you've certainly had exceptionally bad luck so far, it must be getting 
>>> better any time now.   :-)
>>> 
>>> 
>>> 
>>> Regards,
>>> Achim.
>>> -- 
>>> +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+
>>> 
>>> SD adaptations for KORG EX-800 and Poly-800MkII V0.9:
>>> http://Synth.Stromeko.net/Downloads.html#KorgSDada
>> 
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