Asus Z300C Troubleshooting Manual page 31

• Check U2102 置件是否有歪斜、空焊或損毀
• Check VDD (R2109) 電壓是否為 1.8V
• Check ALS_SDA (R2110.1) & ALS_SCL (R2111.1) 準位是否為 1.8V
– 確認準位後，再用示波器確認波形是否正確
 若上述狀況無異常，則可嘗試 照X-Ray、再次加熱或更換 Sensor 本體。
VSD_1V8
V_CADIZ_DVDD_1P8
1
1
@
Ambient Light Sensor
VDD_ALS
R2109 2
0R1J
R2117 2
0R1J
C2103 C2104
ALS_SDA I2C4_SEN_SDA
1 R2110 2
0Ohm
ALS_SCL I2C4_SEN_SCL
1 R2111 2
0Ohm
U2102
1
VDD SCL
2
GND INT
ALS_SDA
3
SDA NC
AL3320A
VDD_ALS
R2112
100KR1J
ALS_SCL
6
ALS_INT#_3320A
5 1
4
1
@
R2113 2
ALPS_INT_N 10,83
0R1J
R2123 2
SD_PWR_EN 7,83
0R1J