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If you have plugged in to 230AC with voltage settings was 110VAC, the transformer has been damaged already [opend winding]. If the voltage settings was 230VAC itself, there will be no harm to its internal transformer. Anyway, open it, anc check the fuses. In some cases, fule only will blow out, preventing from furhter damages. I'm not sure about it, but check it. If the fuse only has blown out, and there has no harm; you are lucky I should say. OK.
Unplug the unit. Carefully unscrew the screws for the case. Probably 4 screws, 2 on each side of the unit. Remove the cover. Look for the fuses, and replace with exact same type/specs of the faulty fuse. If the fuse, is on a printed circuit board, be careful dislodging the fuse. Hope this helps.
There is usually one or two normal clicks on power-up. A self-protection relay activates after a short delay for circuit and power stabilization plus some internal cheking for shorts and thermal issues.
If it keeps blowing fuses you are stressing it a bit more every time you feed it another one. I'd get it in to a Pro for repair.
Does the receiver work OK? These are probably electromechanical switches (called relays) which yamaha uses a lot. They use electricity to connect/disconnect something by magnetic force and this causes the "clicks". It is used for example to connect the speakers to the output of apmlifier only after it has finished initializing to protect both the amp and the speakers. When I turn on my RX-V465 I hear at least one click, it is probably connecting power to the amp. When turning it on with Radio button on remote I hear 3 clicks over 2-3 seconds. So these clicks are normal and nothing to worry about. They occur also when you switch to the PURE DIRECT mode.
I have this problem. it is caused by an o/c mains transformer primary winding. the clicking and flashing light is the stanbyy circuit trying to switch the power on to the main (large) transformer when it gets no voltage out it switches back off