R7010 is 27.88 k ohms. Going to replace U7000 and see whether is works
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TerryLiu
New Member
Last Activity: 01-15-2018, 10:15 AM
Joined: 12-24-2017
Location: Singapore
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Re: MacBook can not turn on, no green light on the charger (820-2936-B)
R7010 is 27.88 k ohms. Going to replace U7000 and see whether is works...
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Re: MacBook can not turn on, no green light on the charger (820-2936-B)
The MOSFET Q7030 and Q7035 are fine, no short to ground detected. The laptop can not turn on with the battery. U7000 is super hot when dc is plugged in. Didn't check the 3.42v chip since at this point I am pretty sure U7000 is faulty.
I will replace the unit first. In addition, could you provide some insight about why my PPDCIN_G3H is quite low?
Thanks!
edit: The chip won't get hot if the battery is plugged in...Last edited by TerryLiu; 12-24-2017, 11:34 PM.Leave a comment:
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please give me dell inspiron 15-5000 schemetic drigram. -
MacBook can not turn on, no green light on the charger (820-2936-B)
Hi,
Last week I tried to upgrade my MacBook pro 13' late 2011, yet screw touched battery jack and possibly burned the logic board. Now it can not turn on, and there is no green light on the charger.
I started to learn the board repair several days ago. Below is what I have now:
with only dc plugged:
1. PP3V42_G3H - 3.49v (is it too high?)
2. PPBUS_G3H - 0.16v
3. PPDCIN_G3H - 16.69v (is it too low? actually my J6900 pin1 (PP18V5_DCIN_FUSE) is the same reading)
4. SMC_BC_ACOK - 0v
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Re: New Members - please post your introductions here
Hi, all. I am a 4th year collage student from Singapore! Recently my mac is dead and I find this amazing website. Hope it will help me to learn something useful and fix my macbook pro
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