Blu STUDIO 5.0S II, Service Manual, Page: 14 / 19

3.4 USB Download
3.5 Keypad Part
In the project, the
array scanning
is used to the keypad circuit. When a key is pressed,
the scan signal will be triggered and the CPU can recognized the
correspondence line and row,
then read the function of it by the software.
3.6 Camera Part
The circuit is the connector of sensor .All the signals are necessary for the camera’s
function.