Hi, I'm looking for a boardview for a DELL XPS 13 9350, can you help me?

Re: APPLE MacBook Pro 13,3 820-3115-B no chime, no video

Do you have any idea what it could be?

the macbook had no water damage, bios voltage I tested is okay ....

Hi, I've recently had a problem with my MacBook Pro 13.3 mid 2012.

MacBook starts, fan is running, MagSafe Led is green and changes to orange.
However, there is no chime and no video. Vcore I measured and CPU voltage, everything seems to be ok.

Can you give me a tip why it could be?

Re: Macbook Pro 13" A1278 (Mid 2012) no signs of life

Hello everybody,

Perhaps you can help me.

my logicboard 820-3115-b does not start anymore. MagSafe lights green when connected, the battery will not charge.

U7000 voltage all pins okay
U6990 pin 3 has over 15 volts but should have about 3 volts right?
when I pin 3 fair the MagSafe Led goes off

what do you think is U7000 & U6990 defect

Re: New Members - please post your introductions here


Hello everybody,

First of all, I only discovered the fourum by chance because I was looking for macbook repair support.

I think it's great that there is such a great electronics forum where you get help quickly, unfortunately, there is not so often.

to my person

my name is dawid I am 30 years old and live in bremen (germany)
I've been working very hard with macbook logicboards for some time and would like to know more about the repair possibilities.

...