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2003 models has been already obsolete on the year 2004. I'm not sure if some of the service centers still has the transistors or capacitors or even the pcb board that is compatible with 2003 models. We're not from Philippines but if you need some parts or hardware for your receiver you can go to Ebay.com. maybe you can find the parts you needed. It's hard to find any service center who has the older models repair group because most of them rely on new products now. Even the onkyo main headquarters are no longer accepting old models.
hi, There is a standby transformer inside the Onkyo receiver at the mains input stage. If the standby transformer is faulty then the unit will not power on. There will be two transformers. One is big and the other is a small one. The small tarnsformer is the standby transformer. Which will be fitted on a small board where the power cable is connected. Replace the transformer to rectify this problem. OK
Good day sir/maam, Yes it can be repaired. if you have plugged in a 110v device to a 220v ac mains, chances are its toast, your onkyo's power transformer is burnt, the repair is replacing the toast power amplifier, or we usually rewind the power transformer specification, after the replacement, you may need to check the power supply section for shorted power regulators, and rectifiers. If you choose to send it for repairs, the service is usually reasonable.
Several things can cause this: Loud signal passages can momentarily draw high currents at the mains, especially if you have unit plugged into power stripe with other equipment. Or if unit is plugged into isolation transformer, current draw may exceed output of transformer. Too many speakers hooked to output or if one is bad (partially shorted due to overheating)