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Numark PPD DM 1900 pre-amplifier mixer service/user manual

andrewf's picture

I have acquired 4 Numark PPD DM-1900 pre-amp audio mixers from back in the 1980's and a few of them need troubleshooting.I was wondering if a fellow enthusiast would know where i could obtain the service/user manual for this mixer,or if i could ask for a request.
Thank you.