Aquatica Switchboard Circuit (Replacement)

This replacement switchboard circuit is designed for use with the D90 and other recent Aquatica housings. The board includes four 2 position switches. When all switches are in the upper position, all contacts are active, allowing the use of a TTL converter or housed TTL compatible strobe connected to the main bulkhead. When switches are in the lower position (default), only two contacts are active, enabling manual flash mode on the main connector. The secondary bulkhead is wired with two contacts for manual strobe operation to prevent conflicts with the camera's electronic circuit.