Thread: Grundig TK14
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Old 11th Oct 2019, 6:07 pm   #8
TonyDuell
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Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,191
Default Re: Grundig TK14

I've looked at the TK14 service manual, and from the circuit diagram there is nothing that the user needs to do to enable the high-impedance output. There is a switch contact that turns it off in record mode which I guess could be faulty, but as the machine works otherwise, I think that's unlikely.

How exactly is your cable wired? Can you provide photos of the wiring in the DIN plug and in the jack plug, please.
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