Onkyo NR 709 no sound - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 1 Old 04-05-2020, 08:40 AM - Thread Starter
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Onkyo NR 709 no sound

My NR 709 has lost sound and the hot gun trick just lasted a few hours.
I do not use the hdmi part so i want to change it to a receiver.
But on the Micon board the cpu MDP 70F3649 there are 7 pcs ports from pins 89 to 101, that holds 3.2V, which mutes all channels.
And on pins 109 to 116 there are 7 pdl ports that holds 0V and should give at least 0 .5 volts to pull the speaker relayes.
Does anyone know how to switch signal on those pins.
The hard way is to cut the connections and put .5V from somewhere on the speaker relays. But then I think some security will be gone.
Best Regards
Mogens A
moan8452 is offline  
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