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R7075 battery only - 11v
voltage with battery and power lead connected taken at SMC
SCL - 3.4v - same at J6951
SDA - 3.4v - same at J6951
Voltage after taking power lead off with battery connected
SCL - 1.9v - fluctuating
SDA - 1.9v - fluctuating
Diode mode reading
SCL - 0.40
SDA - 0.40
Tried another battery still the same.
There is no comms on the SCL/SDA lines and I wouldn't have thought there would be as there's no P3V3_G3H so surly the SMC isn't even being powered.
I just don't know if there is any communication between the CD3215 and the U7000 which then turns on the...
Sorry I forgot to mention that I've replaced the U7000 twice. Not sure it these are reballed cheap Chinese or if they are genuine. Is there any other factors that are needed to enable PM_EN_P3V3_G3H voltage signal to come from the U7000.
Hi, tried that and no difference. initially after changing R6905 I have 0v on P3V3_G3H.
After connecting the power lead and then removing it with the battery still connected P3V3_G3H dropped to ~1.8v - ~1.7v fluctuating and slowly dropping to now after typing this to ~1.3v - ~1.2v.
I have the above which had mild liquid damage around the board which has now been fix and the logicboard is working but my problem is the battery.
It will work with both the power lead and battery connected or just the power lead but if I pull the power lead out with the battery connected it...
A quick question as I have the same problem as above, does the EDP_INT_AUX_N have a stable voltage that comes from the CPU? and if so does anyone know what this voltage is?
Liquid damaged 820-00923 using 820-00293 Schematics and BV. I have all rails present apart from the following :
PPVCC_S0_CPU
PPVCCGT_S0_CPU
PPVCCEDRAM_S0_CPU
PP0V6_S0_DDRVTT
I believe the last 2 won't have any voltages until the top 2 are working.
Both the top 2 come from the U7100
I've...