Endoscopes having a tip section with viewing elements coupled to a CMOS image sensor and/or a CCD image sensor for transforming light captured by the viewing element into digital and/or analog signals are described. A main connector is coupled with the tip section for transmitting the signals to a main control unit of the endoscope. The main connector includes a pad for transmitting digital signals provided by the CMOS image sensor to a push pin probe in a receptacle of the main control unit. The main connector also include another interface for transmitting analog signals to the main control unit.