Onkyo TX-NR545 - / No power, No stand by /

That read looks to be valid. The bin looks fine. I am curious of your connection to read it. Do you have a picture of your connection to read that eeprom?

Ok, good. Well the eeprom looks to be ok but there is no activity between it and the processor (Q7009). Which is probably to be expected since the processor seems to not be running. So why is the processor not running? Well it could be the processor itself, or it could be the crystal for the processor (X7001). If the crystal is not running then the processor would be dead. You would have to change the crystal to know for sure. The protect lines look to be normal so it does not appear to be in protect mode. There is a slim possibility that a line off the processor is shorted causing the processor to lock up but i would think there would be a little activity in that case but who knows. You could always try an ohm test between the processor pins and ground to see if any show a low ohm reading that should not be low. But who knows, maybe the crystal is bad and changing it will solve the problem. Let me know what you decide.

These protect lines can give you a head ache when trying to figure out how they are functioning. You have to figure out if it in protect when the line is hi or low. Sometimes they put it in the manual what it is for that specific receiver but then sometimes not, like in the case of this model. So you then have to go over the circuit diagram and determine if it is suppose to be hi or low. So when looking at the vprotect line near the processor when you first look at the schematic you see that the line is connected to the 3.3v supply through R7025. So you would think it should normally be hi. Then you see a diode (d7002) and think, what is that for. Then you see R7005 going to ground. Well this would then take to line to 0 volts as normal. So now we still do not know what is protect mode.

So now you have to look at the vprotect line in the amp section to see what is going on. There we see Q6453 on the protect line and when it is turned on it would send B+ (69v) through that line. So Q6453 needs a low signal at its base to be turned on. The base is normally high through R6452. So Q6452 would have to be turned on connecting that base to gnd pulling that line low. Q6452 needs a high signal at its base to be turned on and the base is connected directly to each channels output line, which we know should be 0 volts.

So if a channel output went bad and put some voltage on that line, Q6452 would be turned on, grounding the base of Q6453, turning it on and then sending B+ (69v) through the vprotect line back to the processor, making that line high. So a high signal should be protect mode in this unit. And you have zero.

Same for the iprotect line.

After removing D7003 I have again 4.3ohms. D7003 seem perfect (i test with DMM and with ESR meter).
What about D6456? What may be caused for his ''short''? Does this mean that there may be other damaged components (interrupted), becouse i don't see another ''short''.
I have in mind, is it possible for the machine to turn on a damaged component that is not on
HDMI board.

Without D7003 on board I have 0v (23.5mV) again on pin129

After removing D7002 i have 3.22v on pin130

I assume you mean R7026? LOL