Sony C2104 - Ambient Light Sensor

Troubleshooting Guide (mech)
1273-2281 Rev2
 Sony Mobile Communications AB –
Company Internal
29(48)
Problem Areas
1.16 Ambient Light Sensor
1.16.1 Ambient Light Sensor
Check:
Inspect the external area of the Ambient Light Sensor
window.
Action:
1. If dirty – clean it.
2. If the external window area is damaged – replace the
Front Housing LCM TP Assembly.
Note: Calibrate the Touch Panel/P-sensor/L-sensor 1275-0758
Trouble Shooting Application – mechanical.
Check:
Inspect the ambient light sensor on the main PBA and the
Rubber PL Sensor on the Front Housing LCM TP Assembly
Action:
1. If dirty or clogged – clean them.
2. If the Rubber PL Sensor is damaged – replace it.
3. Replace Main PBA.