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 turns off.
In the OS it shows a percentage and say's it charging. If I go to system under power, it says that the battery is connected and charging. If I leave the power lead connected you can see the percentage going up.
At first, after measuring around the board, what seems to be missing are the SMBUS_BATT_SCL, SMBUS_BATT_SDA and SYS_DETECT_L. So I thought it was the SMC, but with the SMC showing the correct information when it's in the system profile then, I've ruled this out for the time being. After more digging around I found that I was missing PP3V3_G3H on the battery alone. and to be more specific PM_EN_P3V3_G3H which comes from U7000. I replaced this, but it made no difference.
So now i'm stuck, I know PM_EN_P3V3_G3H is created by U7000 but there must be something else externally that switches that on.
One last thing I have noticed with just the battery connected PM_EN_P3V3_G3H if fluctuating between 0.3v-0.6v, PPBUS is showing 11.45v
Any pointer in the right direction
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 turns off.
In the OS it shows a percentage and say's it charging. If I go to system under power, it says that the battery is connected and charging. If I leave the power lead connected you can see the percentage going up.
At first, after measuring around the board, what seems to be missing are the SMBUS_BATT_SCL, SMBUS_BATT_SDA and SYS_DETECT_L. So I thought it was the SMC, but with the SMC showing the correct information when it's in the system profile then, I've ruled this out for the time being. After more digging around I found that I was missing PP3V3_G3H on the battery alone. and to be more specific PM_EN_P3V3_G3H which comes from U7000. I replaced this, but it made no difference.
So now i'm stuck, I know PM_EN_P3V3_G3H is created by U7000 but there must be something else externally that switches that on.
One last thing I have noticed with just the battery connected PM_EN_P3V3_G3H if fluctuating between 0.3v-0.6v, PPBUS is showing 11.45v
Any pointer in the right direction