Recent content by MacLab

yes they do

Pin 3 off u1950 is pulsing with pins 5 and 6 joint but PLT_RESET_L not pulsing and in SMC bypass mode the board dont turn on

Yes pin 3 is pulsing with pins 5 and 6 joint

Sorry for my bad english and thanks for your patience! With pins 5 and 6 joint the motherboard won't turn on

ping 5 pulsing ping 6 gets low

U1950 Pin 3 is low Pin 7 is pulsing PLT_RESET_L is low without Q8150 i get the same readings

In Smc bypass don’t turn in L7320 pulsing L7310 pulsing L7630 pulsing L7430 pulsing Diode mode read in other rails looks fine PP5V_S0= 0.4 PP3V3_S0 = 0.35 PP1V5_S0 = 0.35 PP1V35_S3_CPUDDR = 0.135 PPVTTDDR_S3 = 0.5 PP1V05_SUS =0.3 PP1V05_S0 = 0.138

The diode mode read is the same with a good board. I heat the PCH/CPU with AMTECH NC-599 and still have the same issue.

Hi all, this board came with corrosion on u7200,i clean the area and i change the chip but still the same PM_SLP_S4_L missing but pulsing PM_SLP_S5_L missing but pulsing PP3V3_S4=0.4v (With 2 multimeters) PP3V3_S3=0.4v (With 2 multimeters) PCH_INTVRMEN_= 1.8V PCH_DSWVRMEN_L = 2.1V PPBUS_G3H...

No history available Chequing again U8100 i notice a short in pp3v3_s2_upc So i gon to inject 1v here and see if anything get hot

Hi this is a 820-02016 in 5.14v looping 0 - 0.08amps on both usb ports No power on from battery No DFU MODE ppbus_AON = 11.7v-12.15v pp3v8_AON_VDDMAIN =3.73v-3.76v When remove F5200 in C5254 i get steady 12.20v Diode mode PP5V2_S2= 0.2v PP3V3_S2=0.44v PP1V25_S2=0.29v U8100 COILS DIODE MODE...

Ok New Smc and the board is Ok! Thanks for the help

PP3V42_G3H = 3.46V PPBUS_G3H = 12.54V Remove R6961and still has 0-3.4v loop I change r5071 for a 10k resistor and still have the same issue :(

J6955 diode mode reed (disconnected) pin4 = 0.52v pin 5 = 0.77v pin 6= 0.52v Pin 8= 0.77v R6961 ok cap c6951 corroded but i changeit and still the same with smc_lid

Hi!! the same result, up down 3.4v to 0