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현재 버전 게시자: oldturkey03 (투표 내용) ,

제목:

MacBook air doesn't power on. Shows no signs of life besides charge li

텍스트:

Early 2015 11 inch macbook air
Macbook doesnt power on or show any signs of life besides charge light. I took it apart and saw no obvious signs of any damage. I was told that it needed a logic board replacement, but wanted to see if there is another option.
What I did find, is that the power button does nothing, but when I short the jumper inside the light goes from orange to green and then back to orange again after a second or 2
I tried a pram and smc reset with no luck. Also tried disconnecting everything with no luck. I left it sit for a bit all unplugged with nothing either. Anybody know what might be wrong, or anything to test
Update: 8/9/19 Did some voltage testing on batt connector. Not sure if this is how it is supposed to be, or if this helps anyone. From what I can gather, 1 2 and 3 are negatives and 7 8 9 should be positive from the schematic, although it is switched where 7 8 9 are neg and 1 2 3 pos. But I have it looking at the connector, with the dc in on the right, going from left to right (pin 1 is far left)
Dc only
# 0v
+
2 . 0v
3. 0v
4. 0v
5. 3.5
6. 3.5
7. 8.6
8. 8.6
9. 8.6
Battery Only
# 0
# 0
# 0
# 0
# 0
# 0
# 0
+
8. 0.7 (Was about 1 but dropped for some reason)
9. 0.7 (Was about 1 but dropped for some reason)
Dc plus Battery
# 0
# 0
# 0
# 0.23
# 3.3
# 3.3
+
7. 0.23
# 0.23
# 0.23

기기:

MacBook Air 11" Early 2015

현황:

open

승인된 답변:

+583418

편집자: Cameron ,

제목:

MacBook air doesn't power on. Shows no signs of life besides charge li

텍스트:

Early 2015 11 inch macbook air
Macbook doesnt power on or show any signs of life besides charge light. I took it apart and saw no obvious signs of any damage. I was told that it needed a logic board replacement, but wanted to see if there is another option.
What I did find, is that the power button does nothing, but when I short the jumper inside the light goes from orange to green and then back to orange again after a second or 2
I tried a pram and smc reset with no luck. Also tried disconnecting everything with no luck. I left it sit for a bit all unplugged with nothing either. Anybody know what might be wrong, or anything to test
-
-
-
-
Update: 8/9/19 Did some voltage testing on batt connector. Not sure if this is how it is supposed to be, or if this helps anyone. From what I can gather, 1 2 and 3 are negatives and 7 8 9 should be positive from the schematic, although it is switched where 7 8 9 are neg and 1 2 3 pos. But I have it looking at the connector, with the dc in on the right, going from left to right (pin 1 is far left)
Dc only
# 0v
-# 0v
-# 0v
-# 0v
-# 3.5
-# 3.5
-# 8.6
-# 8.6
-# 8.6
+2 . 0v
+
+3. 0v
+
+4. 0v
+
+5. 3.5
+
+6. 3.5
+
+7. 8.6
+
+8. 8.6
+
+9. 8.6
+
Battery Only
# 0
# 0
# 0
# 0
# 0
# 0
# 0
-# 0.7 (Was about 1 but dropped for some reason)
-# 0.7 (Was about 1 but dropped for some reason)
+8. 0.7 (Was about 1 but dropped for some reason)
+
+9. 0.7 (Was about 1 but dropped for some reason)
+
Dc plus Battery
# 0
# 0
# 0
# 0.23
# 3.3
# 3.3
-# 0.23
+7. 0.23
+
# 0.23
# 0.23

기기:

MacBook Air 11" Early 2015

현황:

open

편집자: Cameron ,

제목:

MacBook air doesn't power on. Shows no signs of life besides charge li

텍스트:

Early 2015 11 inch macbook air
Macbook doesnt power on or show any signs of life besides charge light. I took it apart and saw no obvious signs of any damage. I was told that it needed a logic board replacement, but wanted to see if there is another option.
What I did find, is that the power button does nothing, but when I short the jumper inside the light goes from orange to green and then back to orange again after a second or 2
I tried a pram and smc reset with no luck. Also tried disconnecting everything with no luck. I left it sit for a bit all unplugged with nothing either. Anybody know what might be wrong, or anything to test
+
+
+
+
+
+Update: 8/9/19 Did some voltage testing on batt connector. Not sure if this is how it is supposed to be, or if this helps anyone. From what I can gather, 1 2 and 3 are negatives and 7 8 9 should be positive from the schematic, although it is switched where 7 8 9 are neg and 1 2 3 pos. But I have it looking at the connector, with the dc in on the right, going from left to right (pin 1 is far left)
+
+Dc only
+
+# 0v
+# 0v
+# 0v
+# 0v
+# 3.5
+# 3.5
+# 8.6
+# 8.6
+# 8.6
+Battery Only
+
+# 0
+# 0
+# 0
+# 0
+# 0
+# 0
+# 0
+# 0.7 (Was about 1 but dropped for some reason)
+# 0.7 (Was about 1 but dropped for some reason)
+Dc plus Battery
+
+# 0
+# 0
+# 0
+# 0.23
+# 3.3
+# 3.3
+# 0.23
+# 0.23
+# 0.23

기기:

MacBook Air 11" Early 2015

현황:

open

원문 게시자: Cameron ,

제목:

MacBook air doesn't power on. Shows no signs of life besides charge li

텍스트:

Early 2015 11 inch macbook air

Macbook doesnt power on or show any signs of life besides charge light. I took it apart and saw no obvious signs of any damage. I was told that it needed a logic board replacement, but wanted to see if there is another option.

What I did find, is that the power button does nothing, but when I short the jumper inside the light goes from orange to green and then back to orange again after a second or 2

I tried a pram and smc reset with no luck. Also tried disconnecting everything with no luck. I left it sit for a bit all unplugged with nothing either. Anybody know what might be wrong, or anything to test

기기:

MacBook Air 11" Early 2015

현황:

open