maybe naive question but can one use ISL from 820-2850-A on 820-2915-B

[Davis]

they all look the same thats way I'm in doubt..

 

[aprendiz]

Yes, it is the same....

 

[Davis]

great, is it the same on all models? how can one know for sure that it is the same?

 

[aprendiz]

Schematic​ and its been the same on al macbook since about 2009...

 

[Davis]

that's exactly what I wanted to know. Thanks.

 

[larossmann]

read the top of the chip. i forget which schematic is wrong, but there is isl6259 and isl6258 and i recall the schematic getting it wrong once.

 

[aprendiz]

Have a board here fully working and it is ISL6259

 

[Davis]

read the top of the chip. i forget which schematic is wrong, but there is isl6259 and isl6258 and i recall the schematic getting it wrong once.

I have replaced the ISL actuallty both of them, but still no green light and no power, i strted to measure from F6905 there im getting 0.49 also on the magsafe pins on J6900 getting 0.49 I also followd your video https://www.youtube.com/watch?v=WYcl2ZkqNjk and checked u6900 and u6901 which shows no power at all..
why am i getting 0.49 on J6900 and F6905? checked continuity and it shows 0 on F6905 which is good..

 

[dukefawks]

Do you have a fake charger? Apple chargers will shut down if something is not good. Testing can sometimes be better with a fake one that is always on.

 

[Davis]

Do you have a fake charger? Apple chargers will shut down if something is not good. Testing can sometimes be better with a fake one that is always on.

On a fake charger it shows 0.82 and no light and original 0.58

 

[dukefawks]

There must be short on the magsafe input then.

 

[Davis]

Do you mean on the J6900?