dm 7020 technical problem

dm 7020 technical problem

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Hi everyone,
I've got problem with my dm7020. Problem is with audio. If I switch dm on from standby it works for
5-10 minutes without any problems and than start making some tapping noise. At first this was happening
only on scart connection, at the time I used phono plugs worked ok but lately it has same noise on all of the outputs.
Also is there any chance to get hold of circuit shematics for dm7020
Thank you

AcA

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