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macbook 820 2879 PP18V5_DCIN_CONN move up and down ...
- Thread starter funtotos
- Start date
funtotos
Member
i removed F7040 and
I took the measures U7000 :
1) 15.11v - 15.49v
2) 0.8v - 1.5v
3) 4.02v - 4.07v
4) 3.41v
5) 29.4mv
6) 3.42v
7) 56mv
8) 93mv
9) 0.00v
10) 3.38v
11) 3.36v
12) 3.41v
13) 0.6mv
14) 0.6mv
15) 48.9mv
16) 18.7mv
17) 1.4mv
18) 0.9mv
19) 0.9mv
20) 1.1mv
21) 0.00v
22) 0.00v
23) 2.2mv
24) 2.5mv
25 0.2mv
26) 16.10v - 16.41v
27) 0.375v
28) 0.375v
i have short on pin : 17,18,19,20,22,23 (u7000)
thks
I took the measures U7000 :
1) 15.11v - 15.49v
2) 0.8v - 1.5v
3) 4.02v - 4.07v
4) 3.41v
5) 29.4mv
6) 3.42v
7) 56mv
8) 93mv
9) 0.00v
10) 3.38v
11) 3.36v
12) 3.41v
13) 0.6mv
14) 0.6mv
15) 48.9mv
16) 18.7mv
17) 1.4mv
18) 0.9mv
19) 0.9mv
20) 1.1mv
21) 0.00v
22) 0.00v
23) 2.2mv
24) 2.5mv
25 0.2mv
26) 16.10v - 16.41v
27) 0.375v
28) 0.375v
i have short on pin : 17,18,19,20,22,23 (u7000)
thks
Last edited:
"2) 0.8v - 1.5v"
First check resistance to ground.
If bad, change U7000.
In any case, check D7005, R7005.
First check resistance to ground.
If bad, change U7000.
In any case, check D7005, R7005.
Measure resistance between pins 17/18 and 27/28.
Replacing resistors will not repair a damaged trace...
Replacing resistors will not repair a damaged trace...
