Re: macbook pro 820-3437

thank you very much i will try them

I have a problem with an 820-3437 the pp5v_s4rs3 signal varies between 5v and 0v, it is not stable in the same integrated system, it generates pp3v3_s5_reg_r of 3v3 that if they are stable with what the computer does not start the fan is seen to rotate a little and it stops. Green light that turns to orange making measurements I see that q8150 does not have 4 ALL SYS PWRGD in its output due to the instability of PP5V S0 while medium voltages I saw that the measurement of leg 5 saw how the tension was fructifying and in a method it is set to 0.67 V and the fan begins to rotate faster and faster...

Re: macbook pro 820-3115

Thank you and sorry for not giving them to you before that machine I left it aside for the client when I touch it again I will communicate the tensions
thanks anyway for your help

Re: macbook pro 820-3115

Thanks for the help I measured what you recommend and these are the measurements what I think is because q7080 does not have the gate in 7 v more or less I see that u7000 does not send pin 26 to ground to make the divider of the gate of q7080 I see that it is not switching

d6990
pin 1 has 15.14 and decreases to 11.24 and rises again to 15.14
pin2 18.54
pin3 18.26
L6995, pin 2 3.42 ok stable

good morning
I need help I have this motherboard the charger light turns green it turns off and turns on again in a few seconds
and so constantly the motherboard does not boot

I did the following measurements in u7000
in DCIN I have oscillating values 18.1 18.3V
ACOK 3.2V
ACIN 4.4v
CSIN OSCILLATION BETWEEN 18.1 AND 20v
CSIP OSCILLATION BETWEEN 18.1 AND 20v
BOOT OSCILLATION BETWEEN 14.1 AND 20v
SGATE OSCILLATION BETWEEN 17 AND 20V
AGATE 004.2mV
VDD 5V
VDP 5V
R7020 OSCILLATION BETWEEN 18.1 AND...

good morning
I need help I have this motherboard the charger light turns green it turns off and turns on again in a few seconds
and so constantly the motherboard does not boot

I did the following measurements in u7000
in DCIN I have oscillating values 18.1 18.3V
ACOK 3.2V
ACIN 4.4v
CSIN OSCILLATION BETWEEN 18.1 AND 20v
CSIP OSCILLATION BETWEEN 18.1 AND 20v
BOOT OSCILLATION BETWEEN 14.1 AND 20v
SGATE OSCILLATION BETWEEN 17 AND 20V
AGATE 004.2mV
VDD 5V
VDP 5V
R7020 OSCILLATION BETWEEN 18.1 AND...

Re: Toshiba L50-B DABLIDMB8E0 REV. E no enciende - No turn on



I have that board, the only thing that turns me on but it doesn't give me video but I can pass you information on the components...