820-00165 green & orange light but no fan spin.

[crea2k3]

Iv got a 820-00165 in that had water damage just about exactly a year ago and has been working just fine since with no issues.

Now when plugged into the charger it goes from green to orange light, but has no fan spin. I have taken the following voltage readings, but scratching my head a bit. U7100 READINGS >>

SMC_BC_ACOK - 3.3
CHGR_RST_L - 3.3
PP3V42_G3H - 3.4
SMBUS_SMC_5_G3_SCL - 3.4
SMBUS_SMC_5_G3_SDA - 3.4
CHGR_AMON - 0.034
CHGR_VNEG 1.4

CHGR_VCOMP - 0.6
CHGR_CELL - 0
CHGR_ICOMP = 1.1
CHGR_VFRQ - 3.3
CHGR_ACIN - 3.9
CHGR_DCIN - 14.5
CHGR_AGATE - 0.003

CHGR_CSI_P - 14.4
CHGR_CSI_N - 14.4
CHGR_SGATE 14.2
CHGR_BOOT - 12.8
CHGR_UGATECHGR_UGATE - 8.8
CHGR_PHASE - 8.5
GND - 0

CHGR_LGATE - 0.6
PP5V1_CHGR_VDDP - 4.9
PP5V1_CHGR_VDD - 5.0
CHGR_CSO_P - 8.5
CHGR_CSO_N - 8.5
CHGR_BGATE - 1.1
CHGR_BMON - 0.005

PPBUS_G3H @ F7140 - 8.55
PP5V_S0 @ C7310 - 0

pp3v3_s5 is present at c7820

pprtc_g3h is present @ 3.3v

Pch_clk_32k_rtcx1 is 0.433v

pm_slo_S4_l is missing

SPI_MLBROM_CS_L -3.3
SPI_MLB_IO1_MISO - 3.3
SPI_MLB_IO2_WP_L -3.3
GND -0
PP3V3_SUS -3.3
SPI_MLB_IO3_HOLD_L - 3.3
SPI_MLB_CLK - 3.3
SPI_MLB_IO0_MOSI -3.3


r6115 - 15.1
r6116 - 15.1
R6117 - 15.1
r6120 - 43.1
r6121 - 43.5
r6125 - 42.9
r6126 - 42.8
r6128 - 25.2
r6130 - 43.8
r6132 - 42.7

 

[2informaticos]

You waste time around U7100; why, if already got correct PPBUS_G3H?

Test first starting in SMC bypass.
If not, check if PM_PWRBTN_L reacts (drop pulse), when trigger SMC_ONOFF_L.
Use R5115/16 pads, instead of power button.

 

[CoastechNZ]

I've got exactly the same problem, PM_PWRBTN_L is 3.42v, drops when short R5115, all S5 lines are present, any suggestions from here?

 

[2informaticos]

Please open new thread with your board.
Same symptom doesn't mean is the same fault.
You may need check other signals, depending the values of the basic ones first.

 

[crea2k3]

I tried that and I?m getting the drop pulse, but not powering on. I did notice if I plug in the keyboard I get no charger lights at all, they come back when unplugged, so I?m guessing the keyboard has caused this.

 

[2informaticos]

Let keyboard and LIO flex disconnected, until get the board booting.

If PM_PWRBTN_L pulses, all PM_SLP_Sx_L signals should pulse too (at least); check that now.