Hi, i have a macbook air a1932 820-01521, no power, restor t2 ok no problem but no display or boot on the macbook, no liquid damage, very clean, no short, I changed U7000 and always the same result: PPBUS_G3H 12V66 stable but low and CHGR_BGATE not stable 12V66 at 0V20, I removed F7000 and F8400 to measure but same result.
Do you have an idea please ? Thanks
measures
PP3V3_G3H 3V3
PPBUS_HS_CPU 12V66
PP3V3_G3H_RTC 3V3
PP3V3_G3H 3V3
PPDCIN_G3H 20V4
PP5V_G3S 5V
PP5V_S5_LDO 5V
PPVIN_G3H_P5VG3S 12V66
PP3V3_G3S 3V3
PP3V3_G3SSW_SNS 0V
PP1V8_G3S 1V8
PPVCC_S0_CPU 0V
PPVCCSA_S0_CPU 0V
pp1V8_SLPS2R 1V8
CHGR_BGATE 12V3and0V20 the voltage oscillates
PPVBAT_G3H 12V3and0V20 the voltage oscillates
trackpad click, no sound, no display, but restore t2 ok
charger plugged in 20v2 and 1a07
ps: sorry for my english i translate by google, i am french
Do you have an idea please ? Thanks
measures
PP3V3_G3H 3V3
PPBUS_HS_CPU 12V66
PP3V3_G3H_RTC 3V3
PP3V3_G3H 3V3
PPDCIN_G3H 20V4
PP5V_G3S 5V
PP5V_S5_LDO 5V
PPVIN_G3H_P5VG3S 12V66
PP3V3_G3S 3V3
PP3V3_G3SSW_SNS 0V
PP1V8_G3S 1V8
PPVCC_S0_CPU 0V
PPVCCSA_S0_CPU 0V
pp1V8_SLPS2R 1V8
CHGR_BGATE 12V3and0V20 the voltage oscillates
PPVBAT_G3H 12V3and0V20 the voltage oscillates
trackpad click, no sound, no display, but restore t2 ok
charger plugged in 20v2 and 1a07
ps: sorry for my english i translate by google, i am french
Attachments
Last edited: