Touch Screen; Touch Screen Malfunction - Sony Xperia TX LT29i Working Instructions

Problem Areas
1.3

Touch Screen

1.3.1 Touch Screen malfunction

Check:
Inspect the touch screen.
Action:
If dirty – clean it.
Check:
Inspect the BtB connector of the Cover Front Assy to the
PBA.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean it.
3. If the touch screen or the FPC of the Cover Front Assy is
damaged – replace the Cover Front Assy.
4. Replace board.
1266-5087 Rev 1
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Sony Mobile Communications AB – Company Internal
Troubleshooting Guide (mech)
10(57)