hifi engine

Yamaha RX-V661

Hi Everybody,

I m Vijay From Malaysia, I M looking for Yamaha RX-V661 service manual does any one has this manual. My problem is cannot switch on. I have check the power transistors, Capacitors and main transformer everything seems OK.
There is power to sub trans but the relay doesn't energize for the main transformer so there is no supply to the main transformer.

I have been repairing amplifier's for some time, but this is bit funny, something is blocking the signal to the relay.

I have heard this is a common problem for Yamaha AVR Amps.
Any idea or advice much appreciated.

Thanks a million,

Regards,
Vijay.



Yamaha RX-V661

Hello,

I had found the service manual , i'll upload .

Pierre

yamaha RX-V661

Hello,

Do you have a high level at the base of Q2502 ? ( pin 2 on connector W2501 )

BR.

Pierre