Question about Kenwood VR-405 Receiver
My AM/FM is the only thing that works, my CD/DVD, Video 1, Video 2, Aux, and Tape outputs don't play any sounds. The tape if turned all the way up will play a very very dim amount of my music that i have plugged into it, but its barely hearable. I get absolutely nothing out of everything else, BUT the tuner (AM/FM). I have slowly been losing one output after the other, and now i have nothing. Could this be a fuse problem? Or something else? Does anyone know where the fuses are located?
I buught a Mitsubishi M-VR700, which produced no audio from the speakers, but with headphones, a tiny bit of audio was detectable with the volume control on max. This solution was posted on FixYa by Mojorisin65 some time ago: Facing the receiver directly behind the MITS logo & power button is a vertical board with a large IC on it, try flexing the board near the IC while turning the reciever on & off or changing input modes, there is a cold solder joint on this board which I haven't found yet. I understand this is a common problem with the MITS M-VR700-900, Onkyo TXDS-575, & Integra DTR5 or DTR5.1 ( all made by Onkyo).
I gently flexed the board as described, and Boom, all the audio was back as it should be. I suspect Mojorisin65 is correct about the cold solder joints, but with SMT components, it could be very difficult to find. I may very well be on one or more of the 48 pins on the large IC. This IC gets rather warm during operation, which may explain why some units may work until it heats up. The chip gets warm and 'twists' enough to lift the bad pin(s) from the circuit board. In an attempt to deal with this symptom, I superglued a TO-220 heat sink to the top of the IC (don't let it touch the case of C-716). The heat sink is dissipating a fair bit of heat, and so far, this 'fix' seems to be doing the trick. RJD 10.18.11
Posted on Oct 19, 2011
No you've probably pressed source direct or something. make sure your speakers are hooked up correctly
Posted on Jul 22, 2008
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Posted on Jan 02, 2017
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