Hi everyone.
I would like some assistance troubleshooting my laptops fault. It charges the battery (red light on), but does not turn on.
With only the charger connected (board removed from case), I measure the following major voltages:
- VINT20_IN = 20V
- VSYS_OUT = 10.2V
- VSYS = 10.2V
- VDDA = 6v
- VCC5M = 5v
- VL5 = 5V
- VCC3M = 3.3v
- VCC1R0_SUS = 1v
- VCC1R8_SUS = 1.8v
- VCCST = 0v
- VCCSTG = 0v
- VCCCPUCORE = 0v
- VCCGFXCORE_I = 0v
- VCCSA = 0v
- VCC1R2AP = 0v
From this I expect maybe the Switching controller NCP81218MNTXG (PU401) may be faulty.
Am I correct in this assumption? How can I confirm this?
Is there any other voltage I should check?
Thanks
I would like some assistance troubleshooting my laptops fault. It charges the battery (red light on), but does not turn on.
With only the charger connected (board removed from case), I measure the following major voltages:
- VINT20_IN = 20V
- VSYS_OUT = 10.2V
- VSYS = 10.2V
- VDDA = 6v
- VCC5M = 5v
- VL5 = 5V
- VCC3M = 3.3v
- VCC1R0_SUS = 1v
- VCC1R8_SUS = 1.8v
- VCCST = 0v
- VCCSTG = 0v
- VCCCPUCORE = 0v
- VCCGFXCORE_I = 0v
- VCCSA = 0v
- VCC1R2AP = 0v
From this I expect maybe the Switching controller NCP81218MNTXG (PU401) may be faulty.
Am I correct in this assumption? How can I confirm this?
Is there any other voltage I should check?
Thanks
Comment