s6 edge no power water damaged

[KorAll]

Originally Posted by HUM

already change these ics but same

As i can see you replaced -

1. U7007 Wireless Charger IC

2. U7026 IF PMIC

3. U7002 AP PMIC

4. U3000 CP PMIC

What i can say, only one - the Great Job

And what do you have?....Nothing? I'm suppose - Дырку от бублика.....

OK, now a little bit of theory "How to repair dead phone with oscilloscope"

Why oscilloscope, you can ask? Look. The cell-phone is a classic MPS (micro processor system). It contains CPU, memory, data BUS, address BUS, timing oscillator and some peripherys. This MPS working when timing clock is present. If no timing - MPS is dead. In case of cell-phone, it contains MPS and periphery (keyboard/touch, transceiver, SIM reader and so on). In all cell-phones present two important clocks -

1. So called "sleep clock" - 32,768 kHz. It is the same in all phones and other electronic equipment.

2. So called "Main system clock" - 24 MHz for Samsung, 38 MHz for Nokia and so on (depends from model).

What is "sleep clock" provide? When this clock is present, CPU can see that you press POWER button on the phone. What is next? CPU give command to PMIC to turn on phone.

If the "Main system clock" is present, CPU can load the software to operating memory and the main phone OS is start.

So you can see - no oscilloscope, no real opportunity to repair dead phone.

BR.

P.S. You can download the software "Sound card oscilloscope", you be able to check 32,768 kHz -

www.UO5OQ.com GSM Ôîðóì

[HUM]

charging regulator near audio ic cause no power issue or not...?

[orx]

hi KorAll
thanks for very useful mini lesson but i've a question ..

i've alreadi replaced same series of components of Hum e also my problem is not solved.
I've replaced OSC5000 problem not solve , so even is try to ceck with oscilloscope what changes..
I admit to have replaced the whole set of components that have to do with the power line but I'm convinced that the problem is the CPU .. it's already the third phone I try to fix with the same problem ..
thank you

[HUM]

Originally Posted by orx

hi KorAll
thanks for very useful mini lesson but i've a question ..

i've alreadi replaced same series of components of Hum e also my problem is not solved.
I've replaced OSC5000 problem not solve , so even is try to ceck with oscilloscope what changes..
I admit to have replaced the whole set of components that have to do with the power line but I'm convinced that the problem is the CPU .. it's already the third phone I try to fix with the same problem ..
thank you

nice u solved from cpu

will u please share
u rehot or something else ?

[orx]

yes sure bro
but i presume cpu because i try all that possible..can to be also something very simple we did not test, but what?

[HUM]

oh yes u r right
it means u still not solve

did u try to replace charging regulator near big audio ic

because i only miss this ic

[orx]

Ok bro in the coming days I try and let you know.

[7ope]

Hi
I have one dead (water) after cleaning remove shorted
Now it take 0,32 in charge and 0,38 when I press pwr


How much it take in working one?

[KorAll]

Originally Posted by orx

hi KorAll
thanks for very useful mini lesson but i've a question ..

i've alreadi replaced same series of components of Hum e also my problem is not solved.
I've replaced OSC5000 problem not solve , so even is try to ceck with oscilloscope what changes..
I admit to have replaced the whole set of components that have to do with the power line but I'm convinced that the problem is the CPU .. it's already the third phone I try to fix with the same problem ..
thank you

Hi, dear. s6 and s6edge are the intricate phones. Both have AP (application processor Exynos 7420) and CP (call processor SHANNON333). AP is the main chip - have connections to all peripherys (to LCD and it is most important). If you want, i can provide some support, but i'm take notice that it is not simple and easy way...You must have good measuring skills and equipment, and also must have big aspiration to repair dead phone. OK, lets the start:



You must check Vbat at C7005, C7006 (top side of picture). At the right sight of pic. you must check:

NPOWER - power for AP.

AP_RST_IN_N - reset signal for AP.

AP_PMIC_IRQ - interruption signal.

PMIC_CLK_32K - signal 32,768 kHz at TP7003 (buffer output).

CP_CLK_32K - signal 32,768 kHz to CP.

AP_CLK_32K - signal 32,768 kHz to AP at TP7002.

All this signals must be present, when you press and hold power button (SW_ON must present at the left side of pic.).

@HUM

Hi, dear. I'm not conjecture the cause of damage. I have measure voltages on all IC's, check all signals, check all ways and some other. Only after that i shall decide - what to do...

@7ope

Sleep current 0,2 ~ 7 mA (milliampere)

Charger spec (5.0V - 2A, 9.0V - 1,67A) adaptive.

[orx]

Hi KorAll
respect ! a great help ..solutions not already ready but just to reason , stay with us I recommend, real technicians have remained few and I just have to learn..All this is a next step !

anyway thank you dear , coming soon i will try ceck TP on schematic

[Waccie]

What else can you do when you dont have a oscilloscope?


Verzonden vanaf mijn iPhone met Tapatalk

[Waccie]

Originally Posted by orx

Hi KorAll
respect ! a great help ..solutions not already ready but just to reason , stay with us I recommend, real technicians have remained few and I just have to learn..All this is a next step !

anyway thank you dear , coming soon i will try ceck TP on schematic

Hi,you have come to a solution??



Verzonden vanaf mijn iPhone met Tapatalk

[stylius]

So this problem was solved or not?

[HUM]

no
replaced the pcb

[harminder.singh]

Samsung 6edge no display what should I do sir please any can tell