Xperia Logo Illumination - Sony Xperia TX LT29i Working Instructions

Problem Areas: Illumination

1.5.2 XPERIA logo Illumination

Check:
Inspect the illumination window of the XPERIA logo on the
Cover Front Assy.
Action:
If dirty – clean it.
Check:
Inspect the BtB connector of Key Flex FPC to the PBA.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean the both sides of the BtB
connector.
Check:
Inspect the BtB connector of Key Flex FPC to the Sub Board
Assy.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean the both sides of the BtB
connector.
3. If the two BtB connectors or the FPC of Key Flex FPC is
damaged – replace the Key Flex FPC.
1266-5087 Rev 1

Sony Mobile Communications AB – Company Internal
Troubleshooting Guide (mech)
13(57)