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    A1502

    Help please, macbook doesn’t power on if charger is not present? Works on battery and charges battery and turns on if charger is present
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    Here is small picture bcs whole can't upload
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    Image whole screen goes wild
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    Hi, I replaced D7105 that diode was problem after replacing device is charging and working normal on battery. Device works normal and out of the blue screen starts to flicker sometimes, I reflowed connector inside the screen and I didn't get that problem again for now, I tried to post the...
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    I found a short on D7105 after replacing there is still some problem
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    When I come home from work I will measure resistance on u7100 and post it back
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    I have short it doesn't turn on if q7130 is not burned I have 0 V PPBUS_G3H
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    I replaced what you said, q7130 didnt blow yet and when it blows device will work, now its short circuit somewhere but nothing even close to 0 ohm, what to do next i replaced u7100 and q7130 tested all leads all over chip is 0.300 or more no short
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    Where should I start troubleshooting?
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    q7130 is shorted on leads 2 PPDCIN_G3H_CHGR 7 CHGR_PHASE itsshort on all 3 of them did i blew up all of them?
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    Those are voltage drop readings on diode mode without any power
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    I will post measurments on board, q7155 was shorted, after swapping it device is telling to plug the charger for the first time. On 1 PPVBAT_G3H_CHGR_R - steady 20 V 5 PPVBAT_G3H_CONN - withouth battery no reading Reading on board when q7130 off board 2 PPDCIN_G3H_CHGR 0.590 7...
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    READINGS ON BOARD WITH Q7130 OFF BOARD: 2 PPDCIN_G3H_CHGR 0.590 7 CHGR_PHASE grows from 0.100 to 0.420 steady
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    CHGR_Phase and PPDCIN_G3H_CHGR is shorted on q7130 on all 3 that i have 2 PPDCIN_G3H_CHGR when i measure with q7130 removed voltage drop is 0.574 7 CHGR_PHASE voltage drope wthout q7130 is 0.410 I replaced u7100 and q7155 and removed q7130, didn't turn on board yet bcs i'm not sure if q7130...
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    Whats the voltage drop if q7130 is half faulty and if is good
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    I have 2 pcs of q7155 1 one 0,410 voltage drop, second 0,464 third one was shorted on board, whatt should be the reading?
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    18V unstable, it drops from 18V to 5V and goes back to 18V again withouth battery, with battery is max 9V and drops to 5V, blinking green light on charger was device turning on/of rapidly, Q7155?
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    C7125 after replace same value, 0 resistor also In diode mode on q7130 2 black PPDCIN_G3H_CHGR 6 red CHGR_LGATE 0.102 1 red CHGR_UGATE 6 black CHGR_LGATE 0.121
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    Q7130 blew again i think same blinking green light, but it was charging but couldn't turn on with another Q7130
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    MacBook Pro A1502 820-3476-A 2014 - NO DISPLAY

    on diode mode r7125 0,0, cap is .483
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