Buzzing sound from speaher of 3310 - GSM-Forum

diocasper · 09-15-2004, 08:14

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

NiX_01 · 09-15-2004, 08:20

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

diocasper · 09-15-2004, 15:56

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

rajumobile · 09-16-2004, 07:30

@ 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.

diocasper · 09-17-2004, 19:32

@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

goldenboy · 09-17-2004, 19:57

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

09-15-2004, 08:14	#1 (permalink)
diocasper Junior Member Join Date: Nov 2002 Posts: 3 Member: 18005 Status: Offline Thanks Meter: 0	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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
After unlock sx1 with test point,phones on n off n with buzz sound from speaker	mccm	Siemens Hardware Repair Area	3	08-03-2006 09:52
continous buzz sound in j200 speaker	sallu	Sony Ericsson Hardware Repair	5	02-28-2006 18:33
Nokia 6230 bad buzzing sound	AndiHEWO	Nokia Hardware & Hardware Repair	3	01-07-2006 21:04
Buzzing sound from my nokia 6510???	ntung	Nokia Digital Core Technology 4 ( DCT-4 )	0	12-04-2003 10:21
Buzzing Sound!!	leosedf	Nokia Hardware & Hardware Repair	3	11-22-2003 21:06

09-15-2004, 08:20	#2 (permalink)
NiX_01 Junior Member Join Date: Aug 2004 Age: 38 Posts: 23 Member: 79307 Status: Offline Thanks Meter: 0	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

09-15-2004, 15:56	#3 (permalink)
diocasper Junior Member Join Date: Nov 2002 Posts: 3 Member: 18005 Status: Offline Thanks Meter: 0	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

09-16-2004, 07:30	#4 (permalink)
rajumobile No Life Poster Join Date: Feb 2004 Age: 52 Posts: 593 Member: 54993 Status: Offline Thanks Meter: 47	@ 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.

09-17-2004, 19:32	#5 (permalink)
diocasper Junior Member Join Date: Nov 2002 Posts: 3 Member: 18005 Status: Offline Thanks Meter: 0	@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