leonemax81
Senior Member
Last Activity: 04-26-2025, 07:59 AM
Joined: 11-15-2015
Location: torino
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solved it was the thin cable, put 100W cable and it starts without battery, thanks for the help. -
I have an 87w power supply, it doesn't turn on, the low battery symbol appears, can I bypass it?Leave a comment:
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with the original 87w power supply the low battery symbol appears and it does not turn on, can this be bypassed?Leave a comment:
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honestly this macbook is boring me, is there a way to turn it on without the battery? the customer is fine even without the battery.Leave a comment:
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replaced U7000 for the third time with ISL9239C0, I read that it is compatible, nothing usual defect does not work with battery connected.😡Leave a comment:
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of course I support 100w, I never had problems, I already repaired many A1707 machines with this power supply, I also have the original 87w apple power supply for the macbook and the defect is the same.Leave a comment:
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I have repaired many machines with this power supply, never had any problems of any kind, it is not a power supply.Leave a comment:
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I use a bench power supply, and the macbook starts with my bench power supply.Leave a comment:
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with only the black cable connected 3,700 kohmLeave a comment:
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should I check the SYS_DETECT_L signal with battery flex connected if it goes to low signal?Leave a comment:
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could it be a bad CD3215 chip? when the battery is connected it doesn't work well?.Leave a comment:
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hi friend do you have another suggestion, this board is making me lose my mind, thanks so much for the help.Leave a comment:
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replaced Q7065 twice without success.Leave a comment:
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with black battery flex cable disconnected:
SMBUS_SMC_5_G3_SCL voltage 3.41v then drops 3.23v in loop.
SMBUS_SMC_5_G3_SDA voltage 3.41v then drops 3.23v in loop.
with black battery flex cable connected:
SMBUS_SMC_5_G3_SCL voltage 2.95v then drops 0.900v in loop.
SMBUS_SMC_5_G3_SDA voltage 2.95v then drops 0.900v in loop.
​...Leave a comment:
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with only the black cable connected to the battery. mosfet:
Q7065 pin 1.2.3.5.6.7.8 voltage 0.998 v
Q7065 pin 4 gate 0.0v
while with black cable disconnected:
Q7065 pin 1.2.3. voltage 12.61 v
Q7065 pin 5.6.7.8 voltage 12.61 then drops 11.45v in loop.
Q7065 pin 4 gate 4.5v then rises 12.61v then drops 4.5v in loop.​Leave a comment:
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also replaced the D6902 diode several times, without success.Leave a comment:
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the battery is 74% charged, the laptop does not turn on with the battery connected, as I have said several times as soon as I connect the black flat cable the Mac does not turn on the USB ports loop up to 5V, the mosfet without the battery has voltage, with battery I have no voltage.Leave a comment:
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resistor R7021 R7022 I confirm they are 1ohm, when the battery plate is connected I have all the voltages in loop, even the PP3V3_G3H voltage, while with the plate not connected, the voltages are ok.Leave a comment:
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also replaced R6950 without success.Leave a comment:
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C7023 black probe to GND pin 1 and pin 2 high resistance over 1,200 kohm, while if I put black probe on pin 1 and red probe on pin 2 I measure 2.7 ohms.Leave a comment:
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