News Forum Phone database

> New Topic
> Reply
< Esato Forum Index > Sony Ericsson / Sony > General > Silent Night K770i : No Music, voice or ring from main speaker Bookmark topic

On my out of warranty K770i, I cannot hear :

- Music, which is playing, through the main speaker
- Voice calls once I attempt to switch on the main speaker i.e. I cannot listen to calls "hands free"
- The phone, when it is ringing (so I have to rely on the vibrate function).

I have not knowingly done anything to cause this fault although today I replaced the speaker / antenna box (supplied by www.mytrendyphone.com) - and it makes no difference.

Any tips would be much appreciated.

--
Posted: 2009-01-31 13:20:28
Edit : Quote


maybe the pcb of your phone are dirty, try to clean it with pencil eraser
--
Posted: 2009-01-31 14:56:53
Edit : Quote


Dear Aquared,

Thank you. I cannot understand how surface dirt would disable the sound. Can you clarify please and / or give me your thoughts on what in particular I should clean please ?

Thank you
--
Posted: 2009-01-31 17:35:39
Edit : Quote


U done replacing the speaker? remove it again, clean the place where it was attached with pencil eraser by rubbing where the legs/tip of a speaker connected

--
Posted: 2009-02-01 02:19:40
Edit : Quote


Hola,

Will do and thank you.

Do you have any idea what the voltage and resistance should be across the contacts please ?
--
Posted: 2009-02-01 22:52:54
Edit : Quote


am not sure the exact voltage and resistance, if u check d resistance on ur speaker i think 32 ohms,
--
Posted: 2009-02-02 06:38:36
Edit : Quote


Thank you.

I think you are referring to the impedance across the main speaker which I now know is working OK. It would really helpful if anyone knows teh voltage and impedance across the pins that connect into the speaker. That way I can maybe work back and see if it is a motherboard fault.


--
Posted: 2009-02-02 11:24:27
Edit : Quote

---

New Topic   Reply

Forum Index