
Troubleshooting Guide (mech)
1279-7185 Rev 1
Sony Mobile Communications AB – Company Internal
17(68)
Problem Areas
1.7 Earphone
1.7.1 Ear Speaker
Check:
Inspect the external port of Ear Speaker on the Display
Frame Assy.
Action:
1. If clogged – clean it.
Check:
Inspect the contact pads of Ear Speaker and the Ear
Speaker Conductive Films on the Main PBA.
Action:
1. If dirty – clean them.
2. If the contact pads of the Ear Speaker or the Ear Speaker
are damaged – replace the Ear Speaker.
3. If Conductive Film Ear Speaker is damaged – replace
Conductive Film Ear Speaker.
4. Replace Main PBA.