Asus FE170CG Reference manual

FE170CG
Introduction & Training

FE170CG Outline
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide

System Block Diagram

FE170CG Outline
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide

Outline Introduction (TOP)
Speaker
Camera
Micro phone

Outline Introduction (BOT)
Volume Key
Micro-SIM
Camera
Micro-SD
P o w e r K e y

PCB Board Introduction (TOP)
EMMC
Front Camera
Rear Camera
ULPI
SD Connector
WIFI 43362 GPS & BT 2076
MDM 6360
eMMC
MDM LPDDR1
ULPI
SIM1 Connector
SIM2 Connector
C h a r g e r I C

PCB Board Introduction (BOT)
Touch IC
Codec 5648
Trianceiver
SMARTI
Touch Connectors
G Sensor
INTEL
CTLP+LPDDR2
RF POWER AMP
L C M
Connector
Battery
Connector
PMIC SNB5072
Gauge IC

FE170CG Outline
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide

FE170CG Outline
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide

Equipment Requirement
•Power supply: DC 4V
•Oscilloscope
•Digital Multi-Meter
•A C charger of FE170CG
•Battery of FE170CG
•Micro USB cable
•Micro SIMc a r d
•Ultra SD card
•Power supply: DC 4V
•Oscilloscope
•Digital Multi-Meter
•A C charger of FE170CG
•Battery of FE170CG
•Micro USB cable
•Micro SIMc a r d
•Ultra SD card

FE170CG Outline
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide
• System Block Diagram
•Component and PCB Board Introduction
• Power OnSequence
•Equipment Requirement
•Trouble Shooting Guide

Trouble Shooting Guide

Trouble Shooting Guide
no boot
•Check the BATT have 3.7V o r not,
•–B A T T voltage < 3.5V -->Changer，Wait battery v o l t a g e >3.7V，Boot again
•– Change BATT
•Check CONN1, PSR9609,PSR9606, PSR9605 have short or open
•Check R1704.1 voltage 3.7~4.2V
•Check R1703, R1702, R1704, R1705, R1701, CON1701 have short or open
•C h e c k
U1,U6401,BBU1,PU8401,U1201,U8301,PU8101,PU9601,U1502,U2302,U18
01,BBU5301,U2,U1102,U1501,U2301,PU8901 And peripheral circuit have
open or short
•Check PC8401.1 voltage >3.7V
•Check V_VNNAON = 0.60V
•Check V_1P22_VCCAON = 1.25V
•Check V_1P80_AON = 1.836V
•Check the BATT have 3.7V o r not,
•–B A T T voltage < 3.5V -->Changer，Wait battery v o l t a g e >3.7V，Boot again
•– Change BATT
•Check CONN1, PSR9609,PSR9606, PSR9605 have short or open
•Check R1704.1 voltage 3.7~4.2V
•Check R1703, R1702, R1704, R1705, R1701, CON1701 have short or open
•C h e c k
U1,U6401,BBU1,PU8401,U1201,U8301,PU8101,PU9601,U1502,U2302,U18
01,BBU5301,U2,U1102,U1501,U2301,PU8901 And peripheral circuit have
open or short
•Check PC8401.1 voltage >3.7V
•Check V_VNNAON = 0.60V
•Check V_1P22_VCCAON = 1.25V
•Check V_1P80_AON = 1.836V

Trouble Shooting Guide
no boot
•Check V_VCC =0 . 8 ~1.2V
•Check V_VNN = 0 . 6 ~1.2V
•Check V_1P80_AON =1.8V
•Check +3VSUS =3.1~3.3V
•Check V_2P80_CORE =2.80V
•Check V_1P08_VCC =1.08V
•Check V_1P08_VCCAON =1.08V
•Check V_1P00_VCCA =1V
•Check V_1P00_VCCAS =1V
•Check V_1P08_VCCAS =1.08V
•Check V_VCC =0 . 8 ~1.2V
•Check V_VNN = 0 . 6 ~1.2V
•Check V_1P80_AON =1.8V
•Check +3VSUS =3.1~3.3V
•Check V_2P80_CORE =2.80V
•Check V_1P08_VCC =1.08V
•Check V_1P08_VCCAON =1.08V
•Check V_1P00_VCCA =1V
•Check V_1P00_VCCAS =1V
•Check V_1P08_VCCAS =1.08V

Trouble Shooting Guide
power on no display
•Check
U1605,U160
3,R1601
have open
or short
•Check VLED
voltage9.3~
10.35V
•Check
U1605,U160
3,R1601
have open
or short
•Check VLED
voltage9.3~
10.35V

Trouble Shooting Guide
can not charge
•Plug USB cable then check
R1303.1 &PL8101 =5V.
•Check CHGOUT=3V~4.2V.
•Check CHG_EN=0V
•Check PR8117,PU8101 open or
not

Trouble Shooting Guide
can not cable power on
•Check PU8401,U1201,PR8612 have open or
short
•Plug in USB charger then check C1204.1
voltage=5V
•Plug in USB charger then check PR8612
voltage=0V
•Check PU8401,U1201,PR8612 have open or
short
•Plug in USB charger then check C1204.1
voltage=5V
•Plug in USB charger then check PR8612
voltage=0V