Hi guys, i have a problem with board 820-00239-A (no liquid damage). In short was U8000. After change still no power on but charging. I try change U7800 but still doesn't work. Here is all result:
3V3_G3H - 3,3V
PPBUS_G3H - 13,05V
PP3V0_G3H - 3,078V
PP3V3_S0 - 0V
PP3V3_G3H - 3,404V
PP3V3_SUS - 3,352V
PP3V3_S5 - 3,354V
SMC_DELAYED_PWRGD - 0V
CPU_VCCST_PWRGD - 0V
SMC_ONOFF_L - 3,4V
RTC_RESET_L - 3V
ALL_SYS_PWRGD - 0V
S5_PWRGD - 3,265V
PLT_RST_L - 0V
PCH_INTRUDER_L - 3,078V
PCH_SRTCRST_L - 3,057V
PPVCCPRIMCORE_SUS_PCH - 1V
PM_PCH_PWROK - 0V
PM_PCH_SYS_PWROK - 0V
PM_SLP_S5_L - 0V 100kO to GND (R1454)
PM_PWRBTN_L 3,3V
PM_RSMRST_L - 3,351V
PM_BATLOW_L - 3,335V
PM_DSW_PWRGD - 3,4V
PM_SLP_SUS_L - 3,354V
PM_SLP_S0_L - 3,352V
PM_SLP_S3_L - 0V
PM_SLP_S4_L - 0V
PM_SLP_S5_L - 0V
PM_SLP_S0S3_L - 0V
PPBUS_HS_CPU - 13,04V
PPBUS_HS_OTH5V - 13,04V
PPBUS_HS_OTH3V3 - 13,04V
PPBUS_S4_HS_TPAD - 13,05V
PPBUS_PMIC - 13,06V
PP5V_S5 - 5,01V
P5VS4_PGOOD - 0V R7801 100kOhm and diode 0,425V
S5_PWRGD - 0V, R7802 85,5kOhm and diode 0,456V
After change U7650 S5_PWRGD is still 0V but now R7802 is 100kOhm.
Any suggestions?
3V3_G3H - 3,3V
PPBUS_G3H - 13,05V
PP3V0_G3H - 3,078V
PP3V3_S0 - 0V
PP3V3_G3H - 3,404V
PP3V3_SUS - 3,352V
PP3V3_S5 - 3,354V
SMC_DELAYED_PWRGD - 0V
CPU_VCCST_PWRGD - 0V
SMC_ONOFF_L - 3,4V
RTC_RESET_L - 3V
ALL_SYS_PWRGD - 0V
S5_PWRGD - 3,265V
PLT_RST_L - 0V
PCH_INTRUDER_L - 3,078V
PCH_SRTCRST_L - 3,057V
PPVCCPRIMCORE_SUS_PCH - 1V
PM_PCH_PWROK - 0V
PM_PCH_SYS_PWROK - 0V
PM_SLP_S5_L - 0V 100kO to GND (R1454)
PM_PWRBTN_L 3,3V
PM_RSMRST_L - 3,351V
PM_BATLOW_L - 3,335V
PM_DSW_PWRGD - 3,4V
PM_SLP_SUS_L - 3,354V
PM_SLP_S0_L - 3,352V
PM_SLP_S3_L - 0V
PM_SLP_S4_L - 0V
PM_SLP_S5_L - 0V
PM_SLP_S0S3_L - 0V
PPBUS_HS_CPU - 13,04V
PPBUS_HS_OTH5V - 13,04V
PPBUS_HS_OTH3V3 - 13,04V
PPBUS_S4_HS_TPAD - 13,05V
PPBUS_PMIC - 13,06V
PP5V_S5 - 5,01V
P5VS4_PGOOD - 0V R7801 100kOhm and diode 0,425V
S5_PWRGD - 0V, R7802 85,5kOhm and diode 0,456V
After change U7650 S5_PWRGD is still 0V but now R7802 is 100kOhm.
Any suggestions?