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Macbook A1466 820-00165 25 AMps
- Thread starter Instafixx
- Start date
What about 3V3_S5/SUS?
Did you try SMC bypass?
Did you try SMC bypass?
PM_RSMRST_L goes high?
Trigger SMC_ONOFF_L and check for drop pulse at PM_PWRBTN_L.
Trigger SMC_ONOFF_L and check for drop pulse at PM_PWRBTN_L.
Check for pulse at PM_SLP_S4_L (at same time); it should stay high in fact.
If not, there is a problem with PCH...
If not, there is a problem with PCH...
If doesn't react at same time with PM_PWRBTN_L, PCH is suspect.
Just in case, check its RTC signals.
Just in case, check its RTC signals.
Any reaction at PM_SLP_S3_L?
Also check for pulse at all coils.
Also check for pulse at all coils.
Pins 7 & 3 of U1950 also pulsing?
Check diode mode and voltage pulse in page 58.
Check diode mode and voltage pulse in page 58.
Any history available?
Corrosion signs on the MLB?
Just in case, try to reflow PCH area, to eliminate eventually crap underneath.
Corrosion signs on the MLB?
Just in case, try to reflow PCH area, to eliminate eventually crap underneath.