A1707 - 820-00281 - 5.18V - 0.035A

[lafilipczyk]

Hello, first time troubleshooting this, not a trained shop person but a somewhat skilled muggle.

I have a A1707 no liquid damage with 5.18V - 0.035A draw from original charger:

- PP3V3_G3H: 0V
- D6902 pin 3: 4.94V

Suspect short on C6907: got 4.6v goin in, 0V going out. Full continuity to ground on D6902 pin 2. Full continuity to ground on PP3V3_G3H. Any way of testing the cap?

Any ideas?

Thank you for your time!

 

[2informaticos]

First of all, welcome to the forum!

"Full continuity to ground on D6902 pin 2. Full continuity to ground on PP3V3_G3H."
So you have short to ground on both 3V3_G3H and PPBUS_G3H.
Post exact resistance value (ohm scale).

Remove R6923 and check on which pad remains the short to ground.

 

[waterchill]

I have exact same readings. PP3V3_G3H is 0,0V and PM_EN_P3V3_G3H is also 0,0V. ISL9239 is getting 5volts but no output on PM_EN_P3V3_G3H. Can we say that 100% the ISL9239 is bad, or is there also an enable signal for the ISL9239? No short found on PM_EN_P3V3_G3H and PP3V3_G3H

 

[2informaticos]

Please open new thread with your problem...