Where is the MIC? - Xperia Z4/Z3+ Q&A, Help & Troubleshooting

Usually MIC is on the bottom side of a phone, but i don't see any microphone hole. Up there is one for recording but I can't find where MIC for calling exists.

Kachelistic said:
Usually MIC is on the bottom side of a phone, but i don't see any microphone hole. Up there is one for recording but I can't find where MIC for calling exists.
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There is a hole at the bottom.. Mic is connected to a main cable flex at the bottom of the phone.

Ukashek83 said:
There is a hole at the bottom.. Mic is connected to a main cable flex at the bottom of the phone.
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I see only charging port and phone strap hole, and I can talk well when I use both holes. is there any other hole or the charging cable and phone strap ain't disturb MIC?

Related

[Q] Speaker Problem VIP SERVICE

Hi there,
I think my left stereo speaker of my phone doenst work, is this normal guys
please check your phone has the same or not
the left speaker volume is not so loud as the right one
pleas test it & share
Are you talking about the left sound channel when you plug in headphones into the 3,5mm jack or the left sound channel while playing back via HDMI?
Because the phone itself has only one speaker.
The two meshed slots on the bottom of the device are Microphone and Speaker (not two speakers).
look http://i52.tinypic.com/2eb4ao4.jpg
is the thing on the left the microphone???
eraser43 said:
look http://i52.tinypic.com/2eb4ao4.jpg
is the thing on the left the microphone???
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Yes, that's the way it was designed.
ppsun said:
Yes, that's the way it was designed.
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ru sure? thnx m8
According to the service manual, the left and right sound output channels are shorted - going to the speaker.
Please read the manual. Only one speaker.

The bottom speaker dont work after changing housing

Hello,
I hope you can help me here.
I have changed the entire case from the htc one.
Since then the bottom speakers dont work.
I've checked all contacts and Pins.
A second microphone board and speaker but nothing work..
The bottom speaker dont work..
For testing,
I cut the wires from the speaker and connected it to the upper speaker.
Then it works perfectly ..
Is there a separate chip for the bottom speakers?
Or can someone give me the points on the main board to call him to solder directly?
Only one speaker is not really true.
Thanks!
Excuse me for my bad english

Fixing the crap microphone issue on a single Din unit

I've spent hours reading the various threads since getting my HU last Novemeber. Absolutely love it, especially with the Malaysk roms on, does everything I could want it to, except make a bloody phone call. If the other end can hear me it's very faint at best.
Mine was supplied by Pumpkin, they have tried to help with a microphone app and various settings, none made the slightest difference.
There were a few posts about adding an external mic by finding the BT card after dissasembly and wiring to the mic+ and Sgnd legs on the card. Last night I eventually bit the bullet and took mine completely to piecese. Unfortunately I couldn't find a BT card, maybe it's built in, or on chip or...... But I gave up looking for it. What I did find on the front panel was the original pathetic little mic, way back from the tiny hole. You can't drill it bigger as it knocks the mic out of place.
My fix, made simpler now I know what I'm doing (it took me a lot longer and many more steps.
Take off main case
Pull tape off DVD drive to extend ribbon cable
Flip up black tab at the back of the ribbon cable connection on the screen and slide out ribbon and put screen aside
Remove two small screws from the side of the faceplate and using a flat blade screwdriver release the faceplate
Flip up tabs on both ribbon connectors and remove ribbons, I found it easier doing the short one first
unscrew all circuit boards screws in the faceplate circuit (7) and remove faceplate
Drill a hole in the rear of the unit above the ISO connector to feed a cable through
Carefully desolder the horrible little mic from the right hand side of the circuit (labelled mic1) and clean the holes
Take a mini jack extension lead and cut off the male end - either a mono one or if stereo you want the wires for the top part and the middle part of the connector stripped and feed through the hole, I also put a very small tie wrap inside with the tag outside so I could hold the wire tight and not strain the solder - tightened after assembly
The positive (top part) goes on the inside connection. I soldered this to the top of the board
The ground goes to the other terminal - these are so close together that I soldered this on the underside to ensure no contact
Reassemble in reverse of above (making sure all faceplate buttons are in place (yes I forgot the eject and screen buttons)
Then connect any unpowered condenser Mic and all of a sudden fantastic vocie clarity, quite a phenomenal difference.
I used this mic from Amazon, https://www.amazon.co.uk/gp/product/B01F84YMZQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Happy for this to get merged into another thread, but I couldn't find one specifically about the mic problem with the single din unit.
Was there no factory fitted connection for an external mic? Mine does have one. Then it would be simple to just disconnect the internal mic right?
ACSlater said:
Was there no factory fitted connection for an external mic? Mine does have one. Then it would be simple to just disconnect the internal mic right?
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No, no external mic connection on the single din units. Confirmed by Pumpkin. Bit of a silly oversight

Speakers

At the bottom of the phone, there are two speaker grills. I'm only getting sound from the right one.
Is this normal?
OneCheekyDevil said:
At the bottom of the phone, there are two speaker grills. I'm only getting sound from the right one.
Is this normal?
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Yes, one is for the speaker and one for the first mic This phone achieves stereo audio through the combination of bottom and front spakers

Is the microphone located on the USB charging board?

I think I damaged my mic trying to clean it with an old tooth brush and some alcohol, I recorded some voice notes to test it an it sounds crackly, buzzy and barely picks up my voice. Now I'm looking for a replacement and don't know if the microphone is located on the USB charging board or should I replace the speaker. The speaker works fine, but I don't kwon where the mic is located.
I would be grateful if someone could tell me

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