Earphone - Sony Xperia tipo ST21i Troubleshooting Manual

Problem Areas
1.7

Earphone

1.7.1 Earphone
Check:
Inspect the Ear Speaker's external port on the Front Assy.
Action:
1. If clogged – clean it.
2. If the port is damaged – replace the Front Assy.
Check:
Inspect the cavity of the Ear Speaker.
Action:
If the protective film of the Ear Speaker is attached – remove
it.
Check:
Inspect the Ear Speaker pins and the pads on the PBA.
Action:
1. If the Ear Speaker pins or the pads are dirty – clean them.
1266-1682 Rev 4
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Troubleshooting Guide (mech)
16(44)