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Measurement with known good screen
PP5V_S0 on u7701 is present
PP3v3_s0 on u7701 is present
SMBUS_PCH_CLK IS 3.3v
SMBUS_PCH_DATA IS 3.4v
PPVIN_s0sw_LCDBKLT IS 5v
EDP_BKLT_PWM IS 3v
Measure all the resistor around backlight ic with a known good one, they are all...
It came with not green light on MagSafe
PPBUS_G3H-12.25 instead of 12.59
PP5v_s5 is not present.
PP3v42_G3h is present
PP1v2_s5_smc_vddc is present.
so I decided to change smc,
The amber light came
Then ppbus_g3h now got partially shorted.
d7005 stated heating up. I removed it d7005
The board came in dead, no corrosion
The ammeter shows 5v and restarts
PPBUS_G3H=12.32 but pulsing
PP3V3_G3H=3.3v pulsing also
PP1V8_G3S is short sometimes it's not
I replaced Q8270 after I found out its getting hot on thermal camera still the ammeter shows 5v and restart