Official comment
@Alan > The power adapter should have a voltage rating on it - almost all of them are universal voltage supporting 100-240V without the need for a transformer. Check yours to see if this is the case. If it is, you can try connecting it directly to the mains and see if the fault is the transformer. If that still doesn't work, it could be the power adapter is faulty. Try replacing it with an adapter of identical voltage and equal or greater amperage (and don't forget to make sure the polarity of the DC plug is correct).
If all else fails, you'll have to contact Pioneer technical support in the UAE for support - it will be out of warranty as your product's warranty is only valid in the USA (for up to 1 year from date of purchase).