So my RX-V2500 started acting funny a couple months ago. It would just shut off after turning it on. I figured the power cord was coming loose after pulling unit from the cabinet for dusting. I would push the cord back in the socket and the unit would work fine. My brother came accross a RX-V3900 display model for sale at his store and I picked it up for $ 740.00 with 4 year warranty. I pulled the RX-V2500 out and it sat until I decided to sell it locally. Someone came to look at it and low and behold the receiver would turn on for about 5 seconds and click and shut down. This is without anything hooked up to it other than the 120v ac cord. After checking to make sure there were no wire fragments / etc on the binding posts I decided to pull out the circuit board where the 120 V power comes in to check for any obvious damaged components. Visually eveything looked ok. I put the board back in, hooked the wiring back up and now the until will not even turn on, no clicks no nothing. I see you can purchase this board new from yamaha for about $ 150.00 but I don't want to start throwing parts at it as it is not worth as much anymore. Should I try the new board or put it up for sale as parts / repair ? From what I can find on the internet, it seems to be a common problem with many Yamahas but I can not find a sure fix. The receiver has had very little use in the 5 years i've had it and never had any problems until now. It has never been overheated & has been well taken care of. Thanks for your help in advance.