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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Nokia > Nokia Hardware & Hardware Repair

Nokia Hardware & Hardware Repair all what you need for Hardware Repairing for Nokia Phones. Before writing any thread here try to check the Frequently Asked Questions Section.

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Old 09-15-2004, 09:14   #1 (permalink)
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Buzzing sound from speaher of 3310


HI all need some help.

i got a 3310 that give a buzzing sound (like when you put the phone near a radio speaker and try to call) coming out of the speaker everytime it logon the the network or making a call.

i have tried changing the speaker but it did not work, i have clean the board, refolw the N100 ic but still the same, can anyone plz help me.

Thankz
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Old 09-15-2004, 09:20   #2 (permalink)
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try replacing the complete plug in connector with a new or 100% working one, the handsfree works from there. otherwise reflow the whole RF part on the pcb. let me know if anymore problems.

regards
nix
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Old 09-15-2004, 16:56   #3 (permalink)
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HI Nix,

thanks for your advise but still does not work, any other suggestion?

I have also try reflowing the cobba also useless.

Thankz in advance

dio
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Old 09-16-2004, 08:30   #4 (permalink)
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@ Mr.diaocasper

Refer service manual. Right now I don't have it on my table. But there are two resistor through which speaker gets signal. Check continuity/resistance. If require jump a wire. Some capacitors around this lines may creat problem. Check them. Replacing SHIELD is silly thing but it will prevent RF from outside.

Good luck....

regards.
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Old 09-17-2004, 20:32   #5 (permalink)
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@rajumobile

you know what is the resistance for the 2 resistor?

I have check them, they ok connected to the speaker pad.

I still cannot solve the problem any other advise?

thkz
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Old 09-17-2004, 20:57   #6 (permalink)
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Quote:
Originally Posted by diocasper
@rajumobile

you know what is the resistance for the 2 resistor?

I have check them, they ok connected to the speaker pad.

I still cannot solve the problem any other advise?

thkz
hi
try this remove capasitor between ccont and cobba
then make a call,still not working?replace the capasitor with a new one(the big one sometimes its yellow sometime its black)

regards
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