8210 Dead microphone. Is it possible to... - GSM-Forum

Tsunami · 11-29-2003, 22:09

Hi

Ive changed the mic, taken the phone apart and cleaned contacts and given it the chunkhead treatment (usualy helps me out) but still the fault remains. If I use the headset all is OK though. can someone please tell me if its possible to link the mic (tested on another 8210) to one of the headset pic ups without it going to the headset profile, or better yet a link to another part of the board for the main mic.

Cheers

Medz · 11-30-2003, 13:12

Well ... If the control volt-detector detects a headsets jack pluged
in it switshes the cobba to headset mode, and also changes from
internal Mic/Speacker , To external Mic/Speacker.
The best solution in U'r case is to reflow the cobba IC and also by
vision check the audio components at the base of the PCB.
If u insist to make substitutional bridges Mic/Earphone U have to
cut the control volt path, but " Headset " will be titled allways.

issac@mobi · 12-02-2003, 05:31

yup medz is right,reflow the cobba if cant replace it

ALIN · 12-02-2003, 16:14

check the condensator on the user inerfaceare on the bottom there are 2 or 3

ALIN · 12-02-2003, 16:15

check the condensator on the user inerfaceare on the bottom there are 2 or 3 and near the flash could be also 1 look on the schematic

blue1 · 04-06-2004, 20:32

yeap...change cobba my friend

11-29-2003, 22:09	#1 (permalink)
Tsunami Junior Member Join Date: Nov 2002 Posts: 8 Member: 18286 Status: Offline Thanks Meter: 0	8210 Dead microphone. Is it possible to... Hi Ive changed the mic, taken the phone apart and cleaned contacts and given it the chunkhead treatment (usualy helps me out) but still the fault remains. If I use the headset all is OK though. can someone please tell me if its possible to link the mic (tested on another 8210) to one of the headset pic ups without it going to the headset profile, or better yet a link to another part of the board for the main mic. Cheers

12-02-2003, 16:14	#4 (permalink)
ALIN Freak Poster Join Date: Oct 2003 Posts: 434 Member: 40747 Status: Offline Thanks Meter: 0	check the condensator on the user inerfaceare 2 or 3 check the condensator on the user inerfaceare on the bottom there are 2 or 3

12-02-2003, 16:15	#5 (permalink)
ALIN Freak Poster Join Date: Oct 2003 Posts: 434 Member: 40747 Status: Offline Thanks Meter: 0	check the condensator on the user inerfaceare 2 or 3 check the condensator on the user inerfaceare on the bottom there are 2 or 3 and near the flash could be also 1 look on the schematic

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11-30-2003, 13:12	#2 (permalink)
Medz No Life Poster Join Date: Sep 2003 Age: 66 Posts: 807 Member: 39601 Status: Offline Thanks Meter: 13	Well ... If the control volt-detector detects a headsets jack pluged in it switshes the cobba to headset mode, and also changes from internal Mic/Speacker , To external Mic/Speacker. The best solution in U'r case is to reflow the cobba IC and also by vision check the audio components at the base of the PCB. If u insist to make substitutional bridges Mic/Earphone U have to cut the control volt path, but " Headset " will be titled allways.

12-02-2003, 05:31	#3 (permalink)
issac@mobi Insane Poster Join Date: Nov 2003 Posts: 74 Member: 44386 Status: Offline Thanks Meter: 0	yup medz is right,reflow the cobba if cant replace it

04-06-2004, 20:32	#6 (permalink)
blue1 Freak Poster Join Date: Mar 2004 Location: mediteranean Age: 45 Posts: 171 Member: 60613 Status: Offline Thanks Meter: 0	yeap...change cobba my friend