Recent content by sammobile

Sorry for delay here was holiday. Yes you are right. I had a shorted ground under Q7630. I shaved the surface then short gone. So I don't have shorted on PPBUS-G3H and PPBUS-S5-HS-COMPUTING anymore but yes I have short under l7630 pin2 and r7640 pin1. I am a cellphone technician recently I am...

I understand. Check my first post I reported PPBUS_s5_hs_computing rail is shorted. Also I reported L7630 is shorted. At the first view when I saw the motherboard found out the Q7630 was defective. I posted the picture first post. Under the IC a top layer was ripped and was peeled off half. I...

I connected the power as you told me to the battery connector also r5400 from 1v to 2.5v. The only part got heat q7630 under the IC a layer of the board was pilled off I took it with cutter. See the picture. Also, c7619 I took it off. But the place under Q7630 when I connect to power is burning...

R5400 all pins shows 1.9-2.1 ohm. L7310: 59.5 OHM L7320: 59.5 OHM R5510: 270 OHM R7310/R7320: 65 OHM C7440/1/2 L7430 : 270 OHM L7520 :1270 OHM L7560: 7.76k on 20K OHM C4696/C3387/C3287 7.7 K OHM not fixed range. and ground pin on others like c7740/1/2 is 0.08 ohm Thanks for following

Update I took off these components to check the board. L7130 I have shorted ground on pin2 of l7130. Also, r7150 only pin2 is shorted. F7700 PIN1 is shorted , pin2 is normal. Am I wasting time with this way of testing?

Most of the big coils are shorted for example: c7543 c7540 c7542 c7580 c7314 c7313 c7324 I can not compare because all are shorted. I get 1.8 ohm on all of them. Only one c1031 I get 63.1 ohm I confused.

No, the power was disconnected. I was just testing board without connecting to power. I know I look stupid and very amateur but really want to solve it. Yes I tested on diode mode yesterday. Could you please tell me in which range ohm of multimeters should I test? Also, I found out PPBUS-GH3 and...

Bad news. I found ppbus-g3h and ppvbat g3h chgr reg is also shorted. :cautious:

It shows 0.03 ohm compare to other big coils It is same amount.0.02 or 0.03

Thanks. I didn't get, sorry. You mean I took off the components again from the board then measure the ohm. Could you please explain more?

Hi guys, I am not expert in Mac repair. Please help me find the solution. Macbook came with some corrosion water. No power no fan green then orange cable when the charger is plugged. PPBUS-S5-HS-COMPYTING is shorted ground. As I attached under q7630 there is a problem. I took these components...