Yamaha RX-v767 will not turn on

[samtron123]

Hello everybody,

My Yamaha RX-V767 can not be turned on as described in the title.
He does not make a fuss. The micro-fuse installed on the AC-DC converter I have checked, is intact.
many thanks

[madan1]

Re: Yamaha RX-v767 will not turn on

Watch this https://www.youtube.com/watch?v=MwvjAtSr5t8

[samtron786]

Re: Yamaha RX-v767 will not turn on

Hello and thank you very much
but unfortunately I did not find that, further help please

[samtron786]

Re: Yamaha RX-v767 will not turn on

Hi
the problem that I have 3.96 volts and not 5.5V here?
where is the problem exactly

[R_J]

Re: Yamaha RX-v767 will not turn on

That video is for a different model, for the rx-V767, with low standby +5v check C3708, C3707, C3712, C3713, C3716, C3710 & C3711

[redwire]

Re: Yamaha RX-v767 will not turn on

RX-V767 standby PSU schematic for reference

[samtron786]

Re: Yamaha RX-v767 will not turn on

Hello, Ok, I'll do that right away and the red light will also appear on me
it does not begin

[samtron123]

Re: Yamaha RX-v767 will not turn on

after I exchanged the TOP254PN IC, now 5.5 volts measurable but still the same problem no red light

[samtron786]

Re: Yamaha RX-v767 will not turn on

Snubber capacitor
Snubber resistors

[samtron123]

Re: Yamaha RX-v767 will not turn on

can someone please write to me why the red LED does not work ??
many thanks

[samtron123]

Re: Yamaha RX-v767 will not turn on

Hi
I wanted to write these values too

Electrolytic capacitor

400 V 68uF ESR=0,38 ohm Vloss=0,6% 67,65uF

1te 35 V 1000uF ESR=0,06 ohm Vloss=0,6% 1075uF

2te 35 V 1000uF ESR=0,04 ohm Vloss=0,6% 1071uF

[samtron123]

Re: Yamaha RX-v767 will not turn on

C3708 11,19 v
c3707 5,92 v
c3712 5,53 v
c3713 5,53 v
c3716 5,53 v
c3710 4,86 v
c3711 3,75 v

[samtron123]

Re: Yamaha RX-v767 will not turn on

Snubber capacitor
Snubber resistors

I also exchanged it, still the same problems