Satellite C660D not Charge

[gcomputers]

HI today i'm working with this Toshiba .
I checked it and i find U330 ic is the problem changed it tps51125 and the laptop CHARGE OK .
BUT THE PROBLEM IS turn on 7.8 sec and shutdown the light of power stay green. Cpu does not heat ,i tried reflow with heatair , flashed bios.

What do you think ?

[gcomputers]

Re: Satellite C660D not Charge

I checked now and i see on coil PL152 i don't have resistance 0 ohm and 0 V
PQ152 pin 4 =5v , pin 1235678 = ov

changed pq152 and pq151 the same on pl152 0v what do you think PU150 is bad ?

[gcomputers]

Re: Satellite C660D not Charge

Please spend 5 minutes for me?

[atsio]

Re: Satellite C660D not Charge

Clean PJ152 from solder and check which side is shorted. Also remove CPU and check again if short is gone.

[gcomputers]

Re: Satellite C660D not Charge

Atsio thanks for your time.
i cleaned PJ152 but no short with ground . I show you in foto the measurement of resistance with pj152 cleaned.
Cpu is soldered onboard

[gcomputers]

Re: Satellite C660D not Charge

Hi i just changed PU150 and now i have 48ohm resistance in pj152 but i have 5mv .
i try to inject 1,5v with powersuplyLab but the same problem TURN OF AFTER 7,8 SEC.

[gcomputers]

Re: Satellite C660D not Charge

i arrived a conclusion that CPU is bad ?
Is correct?

[atsio]

Re: Satellite C660D not Charge

PJ152 has two pads. If pad from PL152 side is shorted then problem is probably with PU150 or its fets. If pad from the other side is shorted then main suspect is CPU.
From your pictures PJ152 is (I suppose) clean from solder but PL152 seems shorted. If that's true then you must check and replace PU150 and/or its fets. Check by removing each one (PU150 and its fets) if short on PL152 is removed.

[speedypro]

Re: Satellite C660D not Charge

HI today i'm working with this Toshiba .
I checked it and i find U330 ic is the problem changed it tps51125 and the laptop CHARGE OK.

Do you have the amber light but laptop wont power on? Also, did you meant PU330?