T230 MIC problem
 

Please help me with this one:

Sony Ericsson T230 was dropped on the floor, and
somebody was trying to repair it after that.
Microphone doesn’t work, one of the little BGA chips
near bottom connector is missing.
As you can see on attached picture, one of the
contacts for this BGA is broken.

I was trying to get full schematics of T230 but
without any luck.

Please help me: which contacts of this BGA I must
connect with shortcut wire? (I know that this IC
is only some kind of electrostatic protection).
I don’t have this IC, so I cannot check it’s
connections with multimeter. If you have one,
please check which pads are connected to which ones.

If you have full or partial schematics, please send
it to me (or give me link to download them).

This phone is important to me, please help me.

BR,

johny3310

hi,
t230 water damage phone , mic not working , pls tell me any tracks to connect the mic becouse no continuty of mic connection

br

When you look as on the picture and counting from left to right.
Pins 3 and 4 in the first row and pins 3 and 4 in the last (4) row.
Connect 3 with 3 and 4 with 4 you will have mic connection.
Good luck

anyone try with kkusevski idea pls send me reply
10x

sir con't understand , any picture pls...

Connect 3 with 3 and 4 with 4 you will have mic connection.
Good luck

if any one tested this pls reply.

i trayed,NOT Working,waste of time...(and also pcb is drp from my hand and i broke lcd-- good work....spend 4 hours for soldering....)

Looks like a good solution, but not work for me. :(

hallo
a very good solution

it doesnt work yar..any good solution like k 500 plz help

t230
 

Hi! Nice work guys, still, anyone of you got that service manual everybody's asking 4? Cheers!

if any one tested this pls reply.

not working and i am also with 3 pieces with same prob if any solve please your solution is needed

Hi All

I have the same problem the mic not working anyone with a schematic???????

thanks all
Kello

I Have Tested This Solution But It Not Work . Any New Solution To This Prob I Have Many T230 To Repair It .
Great Thx To All Member ;)

better replace cristal ic work 100%%

1- if u remove cristal IC & short GND of Mic to GND of board & +
Mic to +Mic in "T230 Pic1", Mic will not work

2- & if u remove cristal IC & short Mic directly to point marked in "T230 Pic1", u will have low Mic but it work.


so better replace cristal ic from another SE phone like T230-T610-T68...

this solution not working

replace another cristal ic & ur phone will be ok

many times problem not in cristal is.
problem in one black cheap in other side the pcb (112014r1a) or in 2 condensators
change all parts with green circles
see picture

@eddiesoft
thx bro for info

i have solved all T230 mic problem by replaced another cristal

ur trick will be helpfull next time for me :)

For me not work....:( anyone with other schematics
Thx all

I try with up schematics but nothing..change the mic...same...another way..?
Need help...!

Thx team!

Br XHouser

not work for me...i shorted the microphone,like on the picture,but microphone still not work...
I changed the IC,now microphone is work .
Changing the IC is working 100%

Hi
www.freewebs.com/pocapoca
T230
soudsystem shematics avalible
Don´t forget to skip the add
Have fun!

after removing MIC IC
make this links with shortless wires
I just test this solution and now is ready for all!

:rolleyes:

Use a 1k8 - 4k7 resistor for MIC power suplay

Thx bladovica! Good work man!

;) Thx

am going to try bladovica solution........

\


TNX M8 THIS SOLUTION WORKING WELL:)

;)

really excellent solution thanks a lot my dear friend.....

10000000% working...

thx goooooooooooooooooooooooood

thank u sooo oooooooooooooo much

goog scheme. it's working 100%

Hello i think Bourri have right better is change cristal ic! Good luck

@XHouser

solution by baldovica also work 100% (maybe better then replace cristal ic, sometime u get some noise)


br :)

t230 mic not work plz help me sir

Thankssssssssssssssssssssssss