Vectra HMC 4120 decoder, - How to connect vectra HMC4120 decoder with old cinema

The discussion revolves around connecting a Vectra HMC 4120 decoder to an old Eltax cinema system. The user inquires about the connection method, specifically mentioning the absence of an adapter from the decoder's multi-pin socket to RCA. Responses suggest using a digital-to-analog converter (DAC) if the necessary adapter is unavailable, detailing the connection process: output from the decoder's optical to the DAC's optical input, then from the DAC's CINCH output to the cinema's AUX IN. It is noted that the cinema system does not support optical fiber due to its age, and there are suggestions to search the forum for more information on DAC converters.
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