prodigy83
Member
My reference: TT9890
History: Customer spilled tomato juice on his computer, lots of damage. I had it powered on and working, was charging at first too. The customer brought this back to me twice. Each time it was not charging.
After visually inspecting, I saw 2 damaged diodes, I did not have the exact ones, but I used a donor board and I tried using the datasheets to match up as close as possible. The 2 diodes were: DZF600 currently has no voltage, and DZF687 fluctuates around 1.2v.
Other parts replaced:
U5500 twice
C5660
C5500
C5508
C5505
Q5216 (Purchased from digikey, consulted with an engineer since an exact match was not found, they said this should work).
All the pads east of CF813 were completley missing, I ran traces/pads to connect them all, RD671 pin 1 has 11.97v along with the traces/pads I replaced.
C5223 Is getting 5.1v
PP1V8_S2_CHGR is 1.79v
I did have the Magsafe light blinking the other day after having reflowed U5500, but because it was blinking, this is why I ended up replacing U5500 twice as I specified above.
I also had to repair the pad West of UF360 SPI_UPC1_MISO by running a jumper to RF362 pin 2.
I am losing my mind with this board. Your help is greatly appreciated.
History: Customer spilled tomato juice on his computer, lots of damage. I had it powered on and working, was charging at first too. The customer brought this back to me twice. Each time it was not charging.
After visually inspecting, I saw 2 damaged diodes, I did not have the exact ones, but I used a donor board and I tried using the datasheets to match up as close as possible. The 2 diodes were: DZF600 currently has no voltage, and DZF687 fluctuates around 1.2v.
Other parts replaced:
U5500 twice
C5660
C5500
C5508
C5505
Q5216 (Purchased from digikey, consulted with an engineer since an exact match was not found, they said this should work).
All the pads east of CF813 were completley missing, I ran traces/pads to connect them all, RD671 pin 1 has 11.97v along with the traces/pads I replaced.
C5223 Is getting 5.1v
PP1V8_S2_CHGR is 1.79v
I did have the Magsafe light blinking the other day after having reflowed U5500, but because it was blinking, this is why I ended up replacing U5500 twice as I specified above.
I also had to repair the pad West of UF360 SPI_UPC1_MISO by running a jumper to RF362 pin 2.
I am losing my mind with this board. Your help is greatly appreciated.