I have got Kenwood KRF 77775D. I have same problem as Raffa has.
Before 18 month my receiver stop working. I sent it to authorised service centre as recommend by the Kenwood People of UAE. After
I got it serviced & spent Rs.6500/- I come to know that it is not working
with Digital Inputs (Coaxial Cable & Optical cable. In short its DSP,
Dolby Digital, DTS & Dolby Pro Logic is not working. It is only working
with Analog input & to enjoy DVD it is working with 6 channel input.
If anybody have suggestion to solve this problem please write to
me on below mentioned e mail id.
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All systems with multiple audio/video inputs for each connection must be told what connection you want it to play. Most likely your selected choice of input is set to an input other than digital. I included a link to download the manual for your Kenwood model; see page 9 for "Input mode settings".
First use the input selector knob to select the input you are using for the blue ray player, then press the input mode button to select digital auto; the Kenwood should take a few seconds to switch over and then you will be in business.
Well, if analog works for you connect the CD player's analog RCA cables to the VCR inputs.
Can you imagine why you NEED to have the TV audio coming into the receiver from the TV? Are the TV's audio system or speakers superior to the audio section of every other source of TV-related programming? We hope not. Does the TV receive any programming that the receiver can not? Maybe games. I imagaine this MIGHT justify running analog TV audio back to the receiver.
Your cable box and your DVD player have both digital and analog audio outputs. The gray area is what your TV has for audio inputs. It could survive with simple RCA analog audio in from both and none to or from the receiver. Then you could watch Lo-Fi cable and DVD's without the receiver turned on.
That would free up the TV analog audio input for other things.
I imagine your DVD player is using one of the digital inputs on the receiver. If you have one each optical and coaxial audio output among your DVD and Cable Box you could place them in the two available diigital inputs.
Now, what about the CD's digital output? For stereo music you're not likely to be able to hear any difference between it and the analog input BUT it can still be connected digitally IF it has a coaxial output. Coaxial digital inputs can be shared.
Get an RCA-splitter and join the two units entering the coaxial audio input just before they enter that connection. Either will work just fine if you TURN THE OTHER ONE OFF when you want to us it.
Thats is a common symptom of a lost contact or simply a cold solder,that the sound sometimes its come sometimes not coming.Just open the back of the unit and look for the speaker connection and resolder it to tighten the connection,so it works normal again..
If the receiver is actually powering up but you are getting no sound, there are few basic things to check.
Check the audio connections on the back (speakers AND inputs) to make sure they are tight at both ends and undamaged. Go into the setup screen for the DVD player and make sure the audio settings are set for PCM output and that you are using a digital or optical audio cable. Then make sure you have the correct function selected on the receiver to match the inputs. If the receiver has a speaker test function, use it to see if there is any output from the speakers. Finally, make sure the volume is turned up and the mute button is off.
My receiver is experiencing the same issue now. I was thinking it was an amplifier output stage going out. I only took the hood off and measured some typical voltage areas, nothing too in depth while on the living room floor. What was your conclusion? I'd much rather fix mine than buy a new one.