iPhone 5 No Loudspeaker – iphone issues , with strang thing something wrong with

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iPhone 5 No Loudspeaker – iphone issues , with strang thing something wrong with

On January 27, 2015, Posted by , In iPhone, With Comments Off on iPhone 5 No Loudspeaker – iphone issues , with strang thing something wrong with

1) I have an iPhone 5 that was slightly water damaged


2) EVERYTHING ELSE WORKS except for the sound from the LOUDSPEAKER

3) I noticed 1 bad CAPACITOR around the AUDIO CODEC U21
I have not removed it because I think that it will not solve the issue.
C422

[IMG]/[/IMG]

4) I checked for continuity from C360 to pin 29 on the J7 connector
and from R123 to pin 28 on the J7 connector (J7 = dock connector plug)
both lines checked out fine

[IMG]/[/IMG]

5) I checked all the neccessary voltage values all checked out just about
right.

6) EVERYTHING ELSE WORKS (microphone works, earpiece speaker works
headphones work etch)

7) I have also restored the phone succesfully but no sound

8) If I put my ear to the LOUDSPEAKER when listining to music I can
hear a rustling noise like elcrtons are traveling.
So I believe U19 the speaker apmlifier IC is working.

WHAT SHOULD I DOtitle=madtitle=madtitle=madtitle=madtitle=madtitle=mad

No Comment so far:

  1. TechGuru says:

    Have you tried the simpler solution ?

    …Changing the loudspeaker ?

  2. ExpertBuddy says:

    Yes I have changed the loudspeaker 3 times in working phones.

  3. TechGuru says:

    Anyone else have any information

  4. ExpertBuddy says:

    check ringer on settings . if working on settings,
    change h/f flex(also check detection path capacitor)

    if not ok, reball/ change the u19 + u21 one by one

  5. ExpertBuddy says:
    Quote:
    MrInformati >
    Anyone else have any information

    Try replace corroded cap in your pic also look for other maybe corroded and have short or low readings.

  6. julianz says:

    I replaced the cap nothing happened.

    I had to reball U19 and U21