For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Hi,
I replaced D7105 that diode was problem after replacing device is charging and working normal on battery.
Device works normal and out of the blue screen starts to flicker sometimes, I reflowed connector inside the screen and I didn't get that problem again for now, I tried to post the...
I replaced what you said, q7130 didnt blow yet and when it blows device will work, now its short circuit somewhere but nothing even close to 0 ohm, what to do next i replaced u7100 and q7130 tested all leads all over chip is 0.300 or more no short
I will post measurments on board, q7155 was shorted, after swapping it device is telling to plug the charger for the first time.
On
1
PPVBAT_G3H_CHGR_R - steady 20 V
5
PPVBAT_G3H_CONN - withouth battery no reading
Reading on board when q7130 off board
2
PPDCIN_G3H_CHGR 0.590
7...
CHGR_Phase and PPDCIN_G3H_CHGR is shorted on q7130 on all 3 that i have
2
PPDCIN_G3H_CHGR when i measure with q7130 removed voltage drop is 0.574
7
CHGR_PHASE voltage drope wthout q7130 is 0.410
I replaced u7100 and q7155 and removed q7130, didn't turn on board yet bcs i'm not sure if q7130...
18V unstable, it drops from 18V to 5V and goes back to 18V again withouth battery, with battery is max 9V and drops to 5V, blinking green light on charger was device turning on/of rapidly, Q7155?
C7125 after replace same value, 0 resistor also
In diode mode on q7130
2 black
PPDCIN_G3H_CHGR
6 red
CHGR_LGATE
0.102
1 red
CHGR_UGATE
6 black
CHGR_LGATE
0.121