I'd like to put a new original battery on the newer one, but I'd rather have the older 2013 battery replaced, naturally. I'd like to swap them as well, but I've read elsewhere that this might produce some firmware issues. The 2013 actually has a larger ssd, 256 vs 128. I'm planning to fit the keyboard/trackpad assembly of the 2013 on the 2015 MBA, and I've learned here that it is indeed possible. They are both perfectly functional, but the 2013 has the screen slightly damaged, while the 2015 has some cosmetic damage to the uppercase (the part holding the keyboard and trackpad). I have two 13' MBAs, one a 2013 model purchased on launch and the other one a 2015 one purchased in late 2016, so over three years apart. It is a A1398, 820-00138-A logic board MBP Mid 2015.Click to expand.Hi, I was going to start a new thread but I'm glad I found this one.

Is it the Cirrus Logic power amp IC or some thing else, I can only find 1 fuse on the board are there any more.Īlso no the display has failed when I was checking voltages back to the LCD connector 5v feed. I have found that the power chip U6200 is not output the correct 4.5v, traced back to Pin 10 of the sound chip and no voltage out. Ok was checking voltages at C6600/C6601 = 3.3v and pin 10 audio jack same, then checked back to R6322 missing board revision / R6324/R6325/C6212 all 3.3v checked PP3V3_SO_AUDIO_ANALOG =3.3v checked C6302 =1.5v fed from U6200 checked pins 1-6 as follows 1=1.5v 2=0v 3=1.2v 4=3.3v 5=0v 6=4.9v pins 1 and 3 should be 4.5v, checked capacitor C6203 connected to pin 3 and both sides shorted so removed, need to check R6200 and C6200 I think it should be 4.5v and not 3.3v I think going to pin 4 u6200Ĭhecked all components now L6201/C6213/C6214/C6212 = 3.3vĬ6216/C6217/C6218/L6201 =0v should be 3.3v traced back to audio chip (u6201) and no vref should be 4.5v but output =0v does it mean the audio chip u6201 is faulty and need replacing or u6200 that powers the chip if I feed 4.5v direct to c6213 to put 4.5v there will it damage anything ?

The MacBook used to chime when powered on, but now does not.īut the sound still does not work from internal speaker or jack, if I connected Bluetooth headphones the sound works, if I plug a USB-Audio adapter the sound works. I have a MacBook Pro Mid 2015 A1398, I have the audio jack stuck in optical mode, I replaced the jack and now the stuck in optical mode is gone. Macbook Pro Retina 13″ (Late 2012 Early 2013) Hello i want to share with all members my collection

Macbook air early 2015 logic board