Main Functions By Block - Samsung YP-Z5F Service Manual

1-2.Main Functions by Block

Circuit Board
1. Touchpad
* Receives the touchpad input and forwards the input data to the Main IC.
2. Key Interface
* Forwards signal from the keys to the Micom.
3. Power Block
* Outputs voltage for internal use by converting the voltage from the
battery through the DC/DC converter.
4. Audio Output Block
* Turns audio output on or off
5. USB and DC Connector Block
* Operates with USB or DC voltage (5V) and charges the battery.
MAIN
6. Battery Connector Block
* It operates and is charged with the battery voltage (3.7V).
7. SDRAM
* High speed memory that plays the role of buffer between the memory and
the Main IC.
8. LCD Block
* Displays the data from the Micom.
9. Flash Memory Block
* Saves data.
10. Main IC (STMP3650B) Circuit Block
* Circuit Related to the Main IC Circuit MAIN
13-2
Major Functions Remarks
Samsung Electronics