Hello
Need just to know how do you guys determine what the problem is, when we have some fluctuating volt, to discard a faulty TPS 51125 , or if the issue is after this IC.
CRAZY JUMPING
PP3V3_S5 = 0v to 3.33 v jumping
PPBUS_G3H = 12.4v to 12.48 jumping a little
PP5V_S5 = 2v to 5v aprox, jumping fast
P3V3S5_ENTRIP = crazy jumping from low volt
SMC_PM_G2_EN = jumping 0v to 3.3v crazy
STEADY
P3V42_G3H=3.39V steady
PP5V1_CHGR_VDD=5.06v steady
PPCHGR_DCIN= 18.29 to 18.31 jumping
thanks for any help in advance, can measure whatever you need and also have a working similar board but 2011.
Need just to know how do you guys determine what the problem is, when we have some fluctuating volt, to discard a faulty TPS 51125 , or if the issue is after this IC.
CRAZY JUMPING
PP3V3_S5 = 0v to 3.33 v jumping
PPBUS_G3H = 12.4v to 12.48 jumping a little
PP5V_S5 = 2v to 5v aprox, jumping fast
P3V3S5_ENTRIP = crazy jumping from low volt
SMC_PM_G2_EN = jumping 0v to 3.3v crazy
STEADY
P3V42_G3H=3.39V steady
PP5V1_CHGR_VDD=5.06v steady
PPCHGR_DCIN= 18.29 to 18.31 jumping
thanks for any help in advance, can measure whatever you need and also have a working similar board but 2011.
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