Trouble Shooting (mech)
1233-9027 Rev2
©
Sony Ericsson Mobile Communications AB – Company Internal
39(47)
Problem Areas
1.23 Network & Signal
1.23.1 No/Poor signal
Check:
Inspect the Main Antenna on the Bottom Carrier Frame
Assy.
Check:
Inspect the Main Antenna contact pads on the Bottom
Carrier Frame Assy and contact pins on the PBA.
Action:
1. If dirty or oxidized – clean the pads and pins.
2. If the pads are damaged – replace the Bottom Carrier
Frame Assy.
3. Send to higher level of repair.