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Harman Kardon HD970 buzzing output
Harman Kardon HD970 buzzing output
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Old 1st June 2019, 06:36 AM   #1
Sandm0n is offline Sandm0n
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Join Date: Nov 2014
Location: Europe
Default Harman Kardon HD970 buzzing output

Hi All,


My HD970 cd player analog output is buzzing when connected to my integrated amplifier or ant other sort of amplification (tried it on portable speaker).
Even when I removed the main board completely from the cd player and connect it's outputs to the portable speaker I still get a buzzing sound.


The only time that I didn't get this buzzing sound was when I connected the cd player to the portable speaker and the portable speaker was powered by it's built in batteris, as soon as I connect the portable speaker to a wall outlet (any wall outlet) I get the buzzing sound.


Do you have any idea what do I need to look for or how can I fix it?


Thanks

Last edited by Sandm0n; 1st June 2019 at 06:39 AM. Reason: spelling
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Old 1st June 2019, 02:02 PM   #2
Sandm0n is offline Sandm0n
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Join Date: Nov 2014
Location: Europe
Sorted.
Cold soldering
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