I would be very grateful if anyone could assist me in identifying these for me so I can replace them.
Unfortunately they usually can not be identified visually. You will need to find a schematic or parts list to identify C664, C665, R628 & R629.
Hello @njdepalma1,
My go to source for stereo equipment is https://www.hifiengine.com/
Unfortunately, I do not see the HTR-7065 listed. There is a similar Yamaha HTR-7065 RX-V773 but it does not include a service manual. Here “similar” may or may not extend to the internal circuitry.
It’s been my observation that service information for home theatre equipment is difficult to find. Traditional audio is relatively easy e.g., hifiengine has the complete service manual for the powerful Yamaha M-5000.
Happy soldering,
APDahlen
Thanks for the info! Registrations on hifiengine are current paused. Any chance you could download & attach the service manual for the Yamaha RX-V775?
https://www.hifiengine.com/manual_library/yamaha/rx-v775.shtml

