Samsung YP-T55, Service Manual

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13-2 Samsung Electronics
1-2.Main Functions by Block
Block
Major Function
1. USB Block
* USB Communication Circuit
Remark
2. Audio Output Block
* Controls Audio output ON/OFF
3. FM Tuner Block
* FM Tuner Circuit
4. Voice Recording Block
* Records Voice signal from Condencer-Mic
5. LCD Block
* Displays Data from Micom IC
6. Flash Memory Block
* Inputs and Outputs data to and from the Micom IC
7. KEY Interface Block
* Provides input signal from TACT S/W*4 and LEVER
S/W*1 to the Micom IC.
8. Power Block
* Receives the battery voltage
and supplies the voltage to the DC-convertor.
9. Main IC(STMP3520B) Block
* the operation circuit for Main IC
* Option