Convert 110v to 230v input ?

[istari knight]

Hi all, hopefully someone can help....

I recently picked up a Sony SDP-EP9ES processor cheap on an auction site but it runs at 110v & im in the UK with 230v !

I could get a step down transformer but the seller has cut the plug on the encapsulated power cord

Heres a couple of pics :

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

It does say 230v / 110v on the board so hopefully it can be done im just not sure how.....i dont know if i have to move a wire or jumper or something ?

If anyone knows or has any idea please share

Thankyou !

 

[Juergen Knoop]

I guess, the 110V/230V option relates to a different type of transformer.
Yours seem to have only two wires going to the primary, while the pcb supports a optional three wire connector.
regards

 

[jitter]

I agree. A transformer with only two wires probably has one primary winding and cannot be rewired to take another voltage.

A more universal transformer would have 2x 115 V primary windings. Then it would just be a matter of connecting them in parallel for 115 V or in series for 230 V.

BTW, wouldn't cutting the power plug be needed anyway to connect the UK plug?

 

[istari knight]

Thanks for the input guys - I have a stepdown but not a US plug so i just bodged a connection (dont worry its completely safe)

It works fine which is what i was worried about,not sure why but i tend to associate a cut off plug with broken gear suppose i'll have to find a source for US plugs now though......

I only asked incase i could avoid using the stepdown altogether but its not the end of the world


Thanks again !

 

[Extreme_Boky]

from your out-of-focus photos i can't really tell if there are extra 2 wires hanging of the primary...??

Boky

 

[jitter]

Maybe...

But there's another connector with a white and orange wire leaving the picture in the lower right corner... Where's that going? Another (small) transformer perhaps, powering the circuits that have to remain alive when on stand-by? If so, it would need to be converted too...

 

[Extreme_Boky]

Maybe...

But there's another connector with a white and orange wire leaving the picture in the lower right corner... Where's that going?

To the mains switch.

Another (small) transformer perhaps, powering the circuits that have to remain alive when on stand-by? If so, it would need to be converted too...

dont think so.

Boky