A SONY-DSC-717F machine fault code C: 13:01 After testing, the big cable is not bad, the card data signal, a clock signal can be measured with an oscilloscope, only card-powered signal no. Card power supply Control of the CPU via a resistor R302 Q301 5 feet, 1 foot 3V supply voltage of Q301 through its internal switch 3V output voltage from 6 feet for card use, Q301 control voltage does not, just put one foot and 6 feet short, With card-powered, machine failure naturally excluded.NFNservice manual download site