[sdiy] Siel OR400 power supply busted

[M Maeghan Skala]

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.
> -- 
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