E90 microphone still not working! - GSM-Forum

marcoco · 04-25-2009, 09:29

Hi,my e90 mic was broken,i have removed it and with tester i have this signal on pin:

PIN GND to ground
PIN DATA---with a LF genarator i hear the LF NOISE when i active the mic
PIN VCC ---- 1,79v when i active the mic
PIN CLK -----0,89v when i active the mic

but with new mic still not working.Is it possible to repalce 4 pin digital mic with a simply 2 pin mic?

many thanks

biniesh_08 · 04-25-2009, 10:13

br try it...........

marcoco · 04-25-2009, 10:20

I have the 4 pin mic! Are my measurement correct value?

mobilagy · 04-25-2009, 11:35

I'm not sure about pins measurement values but commonly most of similar new mics is not working !!!
Another thing; it depends on how you install the new mic, my successful way to install it is not to heat directly on mic itself but to heat from down board after lifts the keyboard flake a little away from the mic area >>> hope it helps ...

marcoco · 04-25-2009, 12:23

I have install it by jumper.May be new mic is defect,is it possible?
An othe question,is it possible to install with hardware solution 2 pin mic(normal mic)?

marcoco · 04-25-2009, 12:46

I have install it by jumper.May be new mic is defect,is it possible?
An othe question,is it possible to install with hardware solution 2 pin mic(normal mic)?

marcoco · 04-25-2009, 12:51

I have install it by jumper.May be new mic is defect,is it possible?
An othe question,is it possible to install with hardware solution 2 pin mic(normal mic)?

04-25-2009, 09:29	#1 (permalink)
marcoco Insane Poster Join Date: Feb 2008 Posts: 92 Member: 705400 Status: Offline Thanks Meter: 9	E90 microphone still not working! Hi,my e90 mic was broken,i have removed it and with tester i have this signal on pin: PIN GND to ground PIN DATA---with a LF genarator i hear the LF NOISE when i active the mic PIN VCC ---- 1,79v when i active the mic PIN CLK -----0,89v when i active the mic but with new mic still not working.Is it possible to repalce 4 pin digital mic with a simply 2 pin mic? many thanks

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04-25-2009, 10:13	#2 (permalink)
biniesh_08 No Life Poster Join Date: Aug 2008 Location: india Posts: 1,259 Member: 843418 Status: Offline Thanks Meter: 740	br try it...........

04-25-2009, 10:20	#3 (permalink)
marcoco Insane Poster Join Date: Feb 2008 Posts: 92 Member: 705400 Status: Offline Thanks Meter: 9	I have the 4 pin mic! Are my measurement correct value?

04-25-2009, 11:35	#4 (permalink)
mobilagy No Life Poster Join Date: Jan 2006 Location: EGYPT Age: 47 Posts: 777 Member: 217479 Status: Offline Thanks Meter: 267	I'm not sure about pins measurement values but commonly most of similar new mics is not working !!! Another thing; it depends on how you install the new mic, my successful way to install it is not to heat directly on mic itself but to heat from down board after lifts the keyboard flake a little away from the mic area >>> hope it helps ...

04-25-2009, 12:23	#5 (permalink)
marcoco Insane Poster Join Date: Feb 2008 Posts: 92 Member: 705400 Status: Offline Thanks Meter: 9	I have install it by jumper.May be new mic is defect,is it possible? An othe question,is it possible to install with hardware solution 2 pin mic(normal mic)?

04-25-2009, 12:46	#6 (permalink)
marcoco Insane Poster Join Date: Feb 2008 Posts: 92 Member: 705400 Status: Offline Thanks Meter: 9	I have install it by jumper.May be new mic is defect,is it possible? An othe question,is it possible to install with hardware solution 2 pin mic(normal mic)?

04-25-2009, 12:51	#7 (permalink)
marcoco Insane Poster Join Date: Feb 2008 Posts: 92 Member: 705400 Status: Offline Thanks Meter: 9	I have install it by jumper.May be new mic is defect,is it possible? An othe question,is it possible to install with hardware solution 2 pin mic(normal mic)?