Hello! I am fairly new at repairing electronics. Recently I came across an old Magnavox MDR513H dvd/hdd recorder. It is not powering on. When the unit is plugged in, I get this really annoying beeping sound coming from the power supply.. I have already tried things like unplugging the unit for a few hours, holding the power button for a minute or 2. Nothing seems to make It work.
I found this guy with the same problem on YouTube -https://www.youtube.com/watch?v=iFVm-SJX-S8
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I checked all over this video's comments but no one really helps him with the issue. except for one comment that seemed legit. (screenshot of the comment is attached.)
if the guy in the comment is correct. I have no idea on how to test this zenner diode to see if mine is indeed bad.
I would appreciate if somebody helped me on how to test it. or maybe somebody knows where I can get a replacement for me to see if this is the issue. I have no idea on the zenner diode specs or how to look it up.
zenner diode markings are 1N4755A A20
I found this guy with the same problem on YouTube -https://www.youtube.com/watch?v=iFVm-SJX-S8
-
I checked all over this video's comments but no one really helps him with the issue. except for one comment that seemed legit. (screenshot of the comment is attached.)
if the guy in the comment is correct. I have no idea on how to test this zenner diode to see if mine is indeed bad.
I would appreciate if somebody helped me on how to test it. or maybe somebody knows where I can get a replacement for me to see if this is the issue. I have no idea on the zenner diode specs or how to look it up.
zenner diode markings are 1N4755A A20
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