this mac came with black screen, i press sw6900 to switch-off the battery and when i corrected the lcd cable, connect power supply mac started with contents on screen and there is login screen and the battery status is 24% i did not have connect keybard so i turn off the power supply since then my mac dos not response on power button, i tryeed to reset smc and nvram but no resoult, what i can do ?

you can download schematics and take measurements

sorry i have no time to reply, and did it and there is only PP3V3_S5 i checked all coils and i describe everything in photo

...make measurements. And then - give them to us.
;-)


POWERS SYSTEM ARCHITECTURE - is the best start point.
SMC and Broadwel PCH side livability will resolve Your problem.
Check and change all PWM controllers one by one, if You are sure in SMC, UEFI and Broadwell.

унаследовано от "take action"!
"делай чтото" а не вот мамка, фоточка, ничё не работает, памагите
да еще время нету :)

"G3Hot" (Always-Present) Rails

PPBUS_G3H - 8,3

PPVIN_G3H_P3V3G3H = 14,9V

PPBUS_S5_HS_COMPUTING_ISNS - 8,3V

PPVBUS_E85 - 14,9V

PPDCIN_G3H - 14,9V

PP3V3_G3H - 3,3V

PP3V3R3V0_AON - 3,3V

PPVRTC_G3H - 3,3V


5V Rails


PP5V_G3H_LDO - 5,0V

PP5V_S0SW_LCD - 0V

PP5V_S4 - 5V

PP5V_S0 - 8,3V


3.3V Rails


PP3V3_S5 - 3,3V

PP3V3_SUS - 0v

PP3V3_S4 - 0V

PP3V3_S0 - 0V


USB-C PWR (5.1V)c


PP5V1_S4SW - 2,4V



1.8V/1.5V/1.2V/1.05V Rails


PP1V8_S3 - 0v

PP1V5_S0 - 0v

PP1V2_S3 - 0v

PP1V05_SUS - 0v

PP1V05_S4SW - 0v

PP1V05_S0 - 0V

PP1V05_S0SW_PCH_PCIE - 0V


SSD Rails


PP3V3_S0SW_SSD - 0V

PP3V3_S0SW_S1X - 0V


CPU "VCORE" RAILS


PPVCC_S0_CPU - 0V

the next step will be flash bios but there is no any, so what can i do now ?