Low Mic on E700 - GSM-Forum

MaRiN · 06-11-2004, 01:03

I have an E700 that has a very low microphone volume.

On a hands free kit it works fine but the mic is very low without it.

I have changed it with 100% working mic, resoldered hands-free connectort, soldered jumper wire on HF connector, but still the same

Any ideas how to solve this problem ?

Alex1234 · 06-11-2004, 08:02

Check voltage on mic. It must be about 2,5v. Check capasitors in mic line...
And. Check case, maybe just dirt?

MaRiN · 06-12-2004, 17:57

Quote:

Originally Posted by Alex1234

Check voltage on mic. It must be about 2,5v. Check capasitors in mic line...
And. Check case, maybe just dirt?

Case is ok.

On mic I have 1.3V. Is this ok or I must have 2.5V?

Alex1234 · 06-16-2004, 08:07

i think it's not ok. I don't know in e700, but it usually 2.5. i think it caused by low power in your. May be it shorted capasitor? try to resold one by one. Is voltage stay on 1.3? Check resistance by SM.

Good Luck

06-11-2004, 01:03	#1 (permalink)
MaRiN Freak Poster Join Date: Nov 2000 Location: Croatia Age: 47 Posts: 353 Member: 2466 Status: Offline Thanks Meter: 10	Low Mic on E700 I have an E700 that has a very low microphone volume. On a hands free kit it works fine but the mic is very low without it. I have changed it with 100% working mic, resoldered hands-free connectort, soldered jumper wire on HF connector, but still the same Any ideas how to solve this problem ?

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06-11-2004, 08:02	#2 (permalink)
Alex1234 Freak Poster Join Date: Jun 2003 Location: Russia Age: 45 Posts: 285 Member: 31044 Status: Offline Thanks Meter: 0	Check voltage on mic. It must be about 2,5v. Check capasitors in mic line... And. Check case, maybe just dirt?

06-16-2004, 08:07	#4 (permalink)
Alex1234 Freak Poster Join Date: Jun 2003 Location: Russia Age: 45 Posts: 285 Member: 31044 Status: Offline Thanks Meter: 0	i think it's not ok. I don't know in e700, but it usually 2.5. i think it caused by low power in your. May be it shorted capasitor? try to resold one by one. Is voltage stay on 1.3? Check resistance by SM. Good Luck