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General Question Power Rail
If one component is dead on a power rail, does it take out the whole rail? Say for example PP3v3_S3- Aaron
- Thread
- Replies: 1
- Forum: Macbook Logic Board Repair Questions
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Is this joint legit? 820-2915 A
Hi, This machine has image, but no backlight. I replaced the LCD connector to restore image Backlight is on pins 38,39,40 (image) In the schematic, those 3 pins are the same line In the image, pins 38, and 39 are connected to a pad, however there is a gap between the pad and the wire on the...- Aaron
- Thread
- Replies: 4
- Forum: Macbook Logic Board Repair Questions
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820-00165
Hi, This Macbook Air has a slightly expanded battery. Trying to determine if it is a board issue or straight battery replace. The board does charge another battery, however PPBUSG3HOT is 15 Volts and so is PPDCIN. Schematic says 18.5V It's been reported the machine is a little slow as well...- Aaron
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- Replies: 1
- Forum: Macbook Logic Board Repair Questions
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820-3437-b
Hi, Machine won't turn on/display, Board has short fan spins, magsafe light is orange. - C1910 Was corroded, so I replaced it and ran a jumper (picture) - PPVRTC - Voltage is low. Has 3.42, but has drops on the line to about 2 - Voltage at C1910 is 3.42 What other information can I get for...- Aaron
- Thread
- Replies: 14
- Forum: Macbook Logic Board Repair Questions