Hello
820-3332 liquid damage around Q7100, U7541 and U7730. CPU_VCore was shorted to 0 Ohms resistance to ground. Found short on U7541. Removed and replaced U7541, Q7100 and U7730 along with surrounding components. Resistance to ground on Vcore is now 1.1 Ohms. Also, I do not have a green/amber light on charger even though it seems I have PP3V42 on multiple TP's. Here are some measurements.
PPBUS - 12.57V
PP3v42 - 3.414V
PPDCIN - 14.77V
PPVRTC - 3.343V
SYS_ONE - 3.32 - 3.412V (Fluctuates)
Adapter_Sense - 16.07V
SMC_Adapter _EN - 3.373V
ACOK - 2.59V - 3.1V (Fluctuates)
Wondering why no green light.
Genuine charger, known working magsafe.
Thanks, Have a good day.
820-3332 liquid damage around Q7100, U7541 and U7730. CPU_VCore was shorted to 0 Ohms resistance to ground. Found short on U7541. Removed and replaced U7541, Q7100 and U7730 along with surrounding components. Resistance to ground on Vcore is now 1.1 Ohms. Also, I do not have a green/amber light on charger even though it seems I have PP3V42 on multiple TP's. Here are some measurements.
PPBUS - 12.57V
PP3v42 - 3.414V
PPDCIN - 14.77V
PPVRTC - 3.343V
SYS_ONE - 3.32 - 3.412V (Fluctuates)
Adapter_Sense - 16.07V
SMC_Adapter _EN - 3.373V
ACOK - 2.59V - 3.1V (Fluctuates)
Wondering why no green light.
Genuine charger, known working magsafe.
Thanks, Have a good day.