a2014 a1398 820-3787 always "thinks" there is headphoen jack plugged in

[dukefawks]

Diode mode on pin 1-7 of audio jack? Pins 1 and 2 shorted together?

 

[roy.ruan]

pin 1 540
pin2 541
pin 3 538
pin4 755
pin5 0
pin 6 0
pin7 1631

and YES pin1 and 2 shorted shorted together

 

[dukefawks]

That seems ok. I can only think of a broken line in the tracks to pin 1 and 2. Remove L6608 and measure on both sides of the removed coil.

 

[roy.ruan]

anything we can bypass this? I don't need the headphone jack to work, anything to remove and totally disable it so the speaker can be back?

 

[larossmann]

try removing L6608.

 

[dukefawks]

Answer my question please!
No removing L6608 will permanently think there is something plugged in.

 

[roy.ruan]

sorry man we didn't mean to not answering your questions,just wondered if there was a quick fix

removed l6608
pin 1 1482
pin 2 516

 

[dukefawks]

That seems ok too. Put back and measure voltage on L6608 with and without something plugged in. No need to boot it up, can just measure on the bare board when it is on. There is no quick fix for this.....

 

[roy.ruan]

Im having 0V on l6608

 

[roy.ruan]

Help please, invested 250+ to replace the screen top already. can't afford not getting this one done
appreciate any advice

 

[dukefawks]

I asked voltage with and without something plugged in.

 

[roy.ruan]

yes, that's the measurement i got. nothing plugged in and it's 0V. i thought can be flux on l6608 maybe, so i double checked and check on pin2 of the jack itself as well,same stuffs. 0v

 

[roy.ruan]

excuse me,i meant pin1 (connected to l6608)

 

[dukefawks]

Now read my question AGAIN!

 

[roy.ruan]

sorry Duke,my bad. had been a long day.

without anything plugged" 0v
with headphone plugged :0v as well

 

[roy.ruan]

both were measured when just machine power on but it didn't boot into OS yet.