Hellow, I own a rx-v2090 , everythings works, the problem is if i crank the volume to 11 to 12 O' clock position, it looses the base and half a minute later it shut itself. please can you explain to me what is the problem and what parts need to be changed. thankyou.

I would think if it was a power supply problem you would see a dimming effect on the front panel display when you crank it but it really hard to say with out putting a meter on it.Is there any way that you can test another set of speakers?Before you go into the unit to replace anything I would try to eliminate that first, I know it seems I am dwelling on the speakers but most of the time what you describe is related to bad wiring or incorrect ohms match or just a blown speakers causing the amp IC to get over heated. I would think if it was a power supply problem you would see a dimming effect on the front panel display when you crank it but it really hard to say with out putting a meter on it.Is there any way that you can test another set of speakers?Before you go into the unit to replace anything I would try to eliminate that first, I know it seems I am dwelling on the speakers but most of the time what you describe is related to bad wiring or incorrect ohms match or just a blown speakers causing the amp IC to get over heated.