Re: Yamaha RX-V 775 power supply

I have already replaced both C3708 and R3704, unfortunately without success.

Re: Yamaha vsx-r775 power supply

It's a Yamaha RX-V 775

Hi, as the titel says iam actually working on a Yamaha vsx-r775 power supply.

When i received the receiver it was completly dead. So after a visiual inspection and starting meassurments, i quickly found out that the 5V supply voltage is missing. My futher investigations lead me to the IC STR-Y6753, because the VCC was just add 2V instead of 16V. After that i`ve checked every component from the VCC circut but couldnt found any faulty components. So i concluded that the startup circut from the chip itself is broken and should be replacet first.

After searching on...

Re: New Members - please post your introductions here

Hello my name is Christian from germany. i have started working on electronic repairs a view month ago. Before that i was just building pc`s or other electronical related stuff. After a few good projects, i actually stuck on a power supply from a Yamaha rx-v775, so i decided to register me and hopefuly solve the problem. KR