Network & Signal; No/Poor Signal - Sony Xperia TX LT29i Working Instructions

Problem Areas
1.32 Network & Signal

1.32.1 No/Poor signal

Check:
Inspect the sub antenna on the Sub Antenna Assy.
Action:
1. If dirty – clean it.
2. If the pad is damaged – replace the Sub Antenna Assy.
Check:
Inspect the main antenna contact pad on the Sub Antenna
Assy and the contact pin on the PBA.
Action:
1. If dirty or oxidized – clean the pad and the pin.
2. If the pad is damaged – replace the Sub Antenna Assy.
1266-5087 Rev 1
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Sony Mobile Communications AB – Company Internal
Troubleshooting Guide (mech)
49(57)