3510 noise in the speaker - GSM-Forum

realdodo · 09-29-2004, 14:53

There's very strong metalic noise in the speaker. When I make a call the noise can be heard and from the other side.
It's not speaker problem - already tried with few new ones.
I also reflowed some res's in audio line but the problem is still there.
If anyone has faced to this problem please help.
b.r.

farry · 09-29-2004, 18:21

i had this problem b4,if i remeber correctly,i reflowed the audio ic%100%.worked.

farry

realdodo · 09-30-2004, 08:53

ok
but 3510 is dct4 and there's no audio ic.
maybe you have other ic in mind? if you can remember i'll be gratefull

b.r.

buschell · 09-30-2004, 10:27

just change the mic(*****piece).

realdodo · 09-30-2004, 13:22

No, It's not mic problem - already tried this
even with HF the noise is still there
br

farry · 09-30-2004, 19:11

realdodo
i havent got the sv manual,but if u have, u just have to reflow the ic which is responcible for sudio,have a look at the svc manual,that trick worked for me honestly!!.

farry

willy · 10-01-2004, 01:34

Hi,

How about when you press kaypad, the tone sound normal ?

Quote:

Originally Posted by realdodo

There's very strong metalic noise in the speaker. When I make a call the noise can be heard and from the other side.
It's not speaker problem - already tried with few new ones.
I also reflowed some res's in audio line but the problem is still there.
If anyone has faced to this problem please help.
b.r.

realdodo · 10-01-2004, 08:36

@Willy
Yes. the sound from the keypad is normal

realdodo · 10-01-2004, 08:53

Quote:

Originally Posted by farry

realdodo
i havent got the sv manual,but if u have, u just have to reflow the ic which is responcible for sudio,have a look at the svc manual,that trick worked for me honestly!!.

farry

That was done from me in the very begining - I reflowed all the parts in the audio line including and some small ic's situated slose to SIM connector - in the SM those ic's were responsible for the audio. So, that trick did not worked for me too
Thanks for your help
b.r.

malkjos · 10-01-2004, 08:57

Quote:

Originally Posted by realdodo

There's very strong metalic noise in the speaker. When I make a call the noise can be heard and from the other side.
It's not speaker problem - already tried with few new ones.
I also reflowed some res's in audio line but the problem is still there.
If anyone has faced to this problem please help.
b.r.

Rehot the uem but be carefull cose is very sensitive part
good luck

willy · 10-01-2004, 17:39

i have same kind happen before,

if keypay tone is ok, then it mean from MCU to read flash tom into UEM then speaker are ok !

then try to look at RF parts problem !

Quote:

Originally Posted by realdodo

@Willy
Yes. the sound from the keypad is normal

09-29-2004, 14:53	#1 (permalink)
realdodo Freak Poster Join Date: Aug 2003 Location: Bulgaria Age: 45 Posts: 324 Member: 37317 Status: Offline Thanks Meter: 8	3510 noise in the speaker There's very strong metalic noise in the speaker. When I make a call the noise can be heard and from the other side. It's not speaker problem - already tried with few new ones. I also reflowed some res's in audio line but the problem is still there. If anyone has faced to this problem please help. b.r.

09-29-2004, 18:21	#2 (permalink)
farry No Life Poster Join Date: Dec 2000 Location: uk Posts: 1,058 Member: 2899 Status: Offline Thanks Meter: 6	hello i had this problem b4,if i remeber correctly,i reflowed the audio ic%100%.worked. farry

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09-30-2004, 08:53	#3 (permalink)
realdodo Freak Poster Join Date: Aug 2003 Location: Bulgaria Age: 45 Posts: 324 Member: 37317 Status: Offline Thanks Meter: 8	ok but 3510 is dct4 and there's no audio ic. maybe you have other ic in mind? if you can remember i'll be gratefull b.r.

09-30-2004, 10:27	#4 (permalink)
buschell Freak Poster Join Date: Feb 2004 Age: 56 Posts: 491 Member: 52884 Status: Offline Thanks Meter: 13	just change the mic(*****piece).

09-30-2004, 13:22	#5 (permalink)
realdodo Freak Poster Join Date: Aug 2003 Location: Bulgaria Age: 45 Posts: 324 Member: 37317 Status: Offline Thanks Meter: 8	No, It's not mic problem - already tried this even with HF the noise is still there br

09-30-2004, 19:11	#6 (permalink)
farry No Life Poster Join Date: Dec 2000 Location: uk Posts: 1,058 Member: 2899 Status: Offline Thanks Meter: 6	realdodo i havent got the sv manual,but if u have, u just have to reflow the ic which is responcible for sudio,have a look at the svc manual,that trick worked for me honestly!!. farry

10-01-2004, 08:36	#8 (permalink)
realdodo Freak Poster Join Date: Aug 2003 Location: Bulgaria Age: 45 Posts: 324 Member: 37317 Status: Offline Thanks Meter: 8	@Willy Yes. the sound from the keypad is normal