Recent content by john

Yes it come from identical board. I place another order I'm waiting for it. Thanks

Aliexpress from a board. Do I need to replace the SMC again?

no light when I plug the mouse

I replace the SMC and the fan is spinning I have a green light but there's no imagine and there's no chime. When I press the Shift+Control+Option I get a green light and then an orange one that means the SMC is resting. Is it something to do with CPU Vcore? PPVCORE_S0_CPU is 0.95V PPVCORE_S0_AXG...

yes there is continuity

No Title Yes I check and the power is steady at pin 8

I measure all SPI Bus Series Termination resistor i checked all the traces with multimeter I don't know what to do I can't find the problem.Is it SPI ROM the problem? Should I rewriting the SPI ROM? Should I check some place else?

the CPU Vcore is doing the same...I tested all the rails for a short to ground nothing... SPI lines are fine TP[1]SPI_SMC_CS_L looks bad and TP[1]SPI_MLB_CS_L but they are test points I noticed something else I did put back the original U6100 and I took u1900 from a donor board now the fan is...

ALL_SYS_PWRGD I get 3.3V and drops and then I get power and drops again

replaced the u6100 and u6101 and the same issue. sometimes the fan is spinning a lite bit sometimes you can hear a noise that is trying to spin the fan but it doesn't have enough power

nothing in there all looks good

Yes was water damage. There was corrosion around U6100 that was the place where the water traveled under the board and stopped at u6101 I did replace u6101. It is quarter fan spin because it's just for one second. resistance pins 17/18 it's 3.17 ohms and 27/28 28,18 ohms 2informaticos I don't...

I have this MacBook air 820-00165-02 the PP5V_S5 present PP5V_S4RS3 getting voltage but is dropping PP5V_S0 getting voltage but is dropping PM_SLP_S5_L is getting voltage but its dropping SMC_S4_WAKESRC_EN 0V any ideas where to look

PPBUS_G3H 12.58V PPVIN_S5_HS_COMPUTING_ISNS 12.58V PPVIN_S5_HS_GPU_ISNS 12.58V PPVIN_S5_HS_OTHER3V3_ISNS 12.58V PPVIN_S5_HS_OTHER5V_ISNS 12.58V PPDCIN_G3H 16.49V instead of 20V PPDCIN_G3H_ISOL 17V instead of 20V PP3V42_G3H 3.41V when I took the measurements at l7095 the fan start to spin. i...

ok I found r6324 with a missing cap. I did replace it now the machine is turning on only if is plugged to the battery and the charger if i take the board out and plug the charger it doesn't turn on