Ambient Light Sensor; Light Sensor Malfunctions - Sony XPERIA ST27i Troubleshooting Manual

Problem Areas

1.17 Ambient Light Sensor

1.17.1 Light Sensor malfunctions

Check:
Inspect the Light Sensor window on the Cover Front
Housing Display Assy.
Action:
If clogged – clean it..
Check:
Inspect the light sensor on the Cover Front Housing Display
Assy.
Action:
1. If dirty – clean it.
2. If scratched or damaged – replace the Cover Front
Housing Display Assy.
Check:
Inspect the Bracket Proximity Sensor on the Main PBA.
Action:
1. If clogged – clean it.
2. If not properly assembled – disassembly and reassembly.
1265-6294 Rev 4
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Troubleshooting Guide (mech)
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