Subject will power up , but seconds later turns off. I tried disconnecting unit, still the same thing happens.
Some times the speaker cables are touching, double check, I had this with my amp and it kept turning itself off
The unit is in protect mode. There is a problem with the last stage of the amplifier section and the unit shuts down to prevent further damage. The most common cause if this is shorted output transistors. If you are comfortable with soldering, you should be able to repair this. Check the transistors attached to the heatsink for a shorted condition. Replace them in pairs.
Keep us posted.
Dan
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I have the same power up, shuts itself down in about 3 seconds.
I pulled all speaker wires, and it still shuts down.
Unplugged the receiver power for an hour, no change.
Changed the power source away from the monster power filter and directly into the wall, no change.
I am glad I kept the trusty old 1973 Marantz around; plugged it in and it works fine for now.
I also have the same problem with my 1500 but only in winter when the unit is started in a cold room. When I warm up the room it works fine.
Thanks for the advice.. mine has the same problem.
Yamaha rx v475 receiver will not power on
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