thank you for so clear explanation... can you think of reason way my HK avr245 keep blowing the fuse supplying the main voltage to primary winding. (it measure 2.3 ohm)
I would check first the rectifier bridge and the main caps. But most likely one (or two) of the output transistors might be fried. Disconnect speakers and check between their pins for zero ohms on fried junctions. Replacements are on ebay. Service manual pdf free on manualslib. Good luck!
Hey man, I have almost the same receiver but it's AVR 130. It's got the same problem which is no display but even when the led turns blue it's giving no display. I tried measuring the transformer and it gives 3.6ohms. I tried looking at other areas too like the linear regulator on the front panel, I can't tell the markings on it because it's too small and quite faded but when I measured the supposedly in and out pin it gives 3V on each. Which I think is weird because why does it even need a linear regulator if it's gonna give the same volts anyway. And not far from that there is a diode that doesn't give any forward voltage and beeps when in reverse, tried swapping that out but still the receiver gives no display. Any tips you can give? I'm in a dead end right now and don't know where to look anymore.
3.6 Ohms means good transformer. Get Service Manual for AVR130 (just google it. It's free to download), then you will be able to get the schematic and trace the correct Voltages. Also look up RU-vid for AVR130 (or similar) repairs and you might be lucky to find the exact fix you need. Good luck!
