EEVblog Electronics Community Forum
Electronics => Repair => Topic started by: onurz on May 10, 2020, 11:52:41 pm
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I've been using dacmagic plus for about 4 years, however I bought it used so I don't know how old is it. Since last 3-4 weeks it does'nt work properly. When I turn it on and when there is a input signal, it only produces a noise. When it happened for the first time I let it on for 15 minutes and selected an empty input, then I selected my usb input again and turned it off and on. It started to work properly. But when I turn it off again it made the same thing. Now waiting 15 minutes or even longer such as 24 hours doesn't work, it only produces high pitch noise. I tried different inputs as well, usb-PC, optical-PS4, Bluetooth-Phone but the result was same.
https://www.youtube.com/watch?v=w4IpNmCxiDU (https://www.youtube.com/watch?v=w4IpNmCxiDU)
They suggested on diyaudio (link (https://www.diyaudio.com/forums/digital-line-level/331084-dacmagic-plus-outputs-pitch-noise.html)) to replace some caps. So I did try to change them. While doing that I've lost some pads but managed scrape some paint and solder the cap. If you watch the video you'll see that while booting up, dacmagic cycles the input leds. Right now when I turn it on dacmagic stucks on the input leds cycling. Does anyone have any idea what the problem is?