Chosen Solution
I was hoping someone might help me find a troubleshooting breadcrumb to follow. I don’t want to have to take it entirely apart and test every capacitor, resistor, fuse, and transistor to sort the issue out. I am looking over a Denon AVR-1909 receiver. The unit will output video but no audio. Steps I have tried: Re-seating a headphone jack. I see display note the insertion and removal of the headphones and I can hear the relays clicking over as I insert and remove the jack. No audio outputs to speakers or headphones for any input selection, including the AM/FM tuner. Protection history is empty Resetting the microprocessor did not change the symptoms. I inspected the inside of the unit for any visible damage, bad solder, blown caps, etc and found none. Thanks in advance!
Hi @geekittogether , Looking at the audio block diagram on p.32 of the service manual for your receiver, one common factor for no audio out from any digital or analogue audio inputs, is if it is setup to receive audio from EXT in Here’s an image taken from the service manual that shows what I mean.
(click on image to enlarge for better viewing) The orange arrow indicates audio received from digital sources e.g. HDMI The blue arrow indicates audio received from analogue sources e.g. AM/FM tuner The green arrow indicates audio from EXT in (external source?). Since you are not getting any audio out from any digital or analogue audio input connection, it may be that the switch (Zone2 - SB assign?) shown by the multiple green arrows in the red box is set to ext and not to either ana or dsp. There is also the possibility that the “mute” function may be operated, ;-) Here’s a image taken from the troubleshooting section of the user manual that shows what to check if there is no sound from the speakers just to help eliminate other possible causes.
(click on image to enlarge for better viewing)
Fellows: I have a detailed trouble shoot that I went through. The problem ended up being my cable box is a HDMI 1.3. Even connecting to the TV directly gave me pic and no audio. I needed to turn off the UHD feature on TV to get audio directly to TV. Now I am looking to limit the HDMI 2.2 feature on my Denon AVR in order to get pass thru audio. Video works. My older cable box has Coax out for home TVs and I don’t want to lo
