ZD551KL
Introduction &Training
2015/06/17
ZD551KL Outline
•System Block Diagram
•Component and PCB Board Introduction
•Power On Sequence
•Trouble Shooting Guide
ZD551KL
Cam_I2C
28x16
HallSensor
Sub-board
Sub-board
ZD551KL Outline
•System Block Diagram
•Component and PCB Board Introduction
•Power On Sequence
•Trouble Shooting Guide
Audio jack |
PCB Board Introduction (TOP) |
|
Second MIC |
ALS& P-Sensor |
G-sensor |
|
Front Flash LED Driver IC 
R&Gcharge Indicator
eMCP
SOC
8939 External-buck
I/OCon. 
ChargerIC 
BATTCON. |
Rear CAMERA13MConn. PMIC |
Backlightdriver IC |
PCB Board Introduction (BOTTOM)
E-compass |
Power keyCon. |
Front CAMERA13MConn. |
TPCON. |
|
|
Rear FlashLED Driver
Touch IC
Laser FPC Con. |
RTCBAT |
SIM2
LCD CON. 
SIM1 & SD CARD
Volume key spring |
Debug con. |
ZD551KL Outline
•System Block Diagram
•Component and PCB Board Introduction
•Power On Sequence
•Trouble Shooting Guide
•Laser IC module introduction
POWER ON SEQUENCE
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