Asus FE170CG, Introduction & Training

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Trouble Shooting Guide
no boot
•
Check the BATT have 3.7V or not,
•
– BATT voltage < 3.5V -->Changer
，
Wait battery voltage >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
•
Check
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 or not,
•
– BATT voltage < 3.5V -->Changer
，
Wait battery voltage >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
•
Check
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