Hi.. can someone help me to provide the connection on poineer 676 speaker protect builtin on its speaker terminal output.. it has a 7wires connected for its power supply and having a 3pcs. Relay? I would like to reuse it with another amplifier board.
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Hi!
This is not a speaker protection, just the speaker terminal unit.
The RY901 relay is the speaker A output switch, while the RY902 relay is the speaker B output switch, and the RY903 relay is the headphone switch.
There is no protection circuit on this PCB, it is implemented separately and controls the relays here, via the seven-pin connector.
Hifista.
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