Hello everyone
Got this Toshiba Satellite L50-A-1DG vgsg MB rev 2.1 with ampere fluctiaution , 19v stable but ampere ( with or without Ram ) = Variable between 0.150 amp and 043 amp !.and power button and led power blinking continuous.
Try to clean / repair Bios but still the same.
No short to ground at all coils , charger circuit Is OK ( Drain and source 19v , gate 24v ).
3/5v not stable ..
For 3v coil voltage are fluctuate between 3v and 2v.
For 5v coil voltage are fluctuate between 5v and 4v.
Take this voltages from U8100 :
Pin 3 = 3v ok
Pin 6 = 5v ok
Pin 12 = 19v ok
Pin 6 = enable 2not stable ,fluctuate between 1.7 / 2.6v
Pin 20 = enable 1 not stable , fluctuate between 1.8 / 2.5v
So i trace it ( pin8/20) until Q8109
Pin 2/5 = FORCE_OFF_PWR = 0v
NB = When i check pin 2/5 for second times , 3/5 v always are stable at coils , when restart lab issue is comeback.
What to check else ! thank you
Got this Toshiba Satellite L50-A-1DG vgsg MB rev 2.1 with ampere fluctiaution , 19v stable but ampere ( with or without Ram ) = Variable between 0.150 amp and 043 amp !.and power button and led power blinking continuous.
Try to clean / repair Bios but still the same.
No short to ground at all coils , charger circuit Is OK ( Drain and source 19v , gate 24v ).
3/5v not stable ..
For 3v coil voltage are fluctuate between 3v and 2v.
For 5v coil voltage are fluctuate between 5v and 4v.
Take this voltages from U8100 :
Pin 3 = 3v ok
Pin 6 = 5v ok
Pin 12 = 19v ok
Pin 6 = enable 2not stable ,fluctuate between 1.7 / 2.6v
Pin 20 = enable 1 not stable , fluctuate between 1.8 / 2.5v
So i trace it ( pin8/20) until Q8109
Pin 2/5 = FORCE_OFF_PWR = 0v
NB = When i check pin 2/5 for second times , 3/5 v always are stable at coils , when restart lab issue is comeback.
What to check else ! thank you