does not turn on i chech voltage does not show in voltage 3/5 alw should be 19v on two controller SY8208B and SY8286CRAC no LDO ..Pq1 no +VAD I change new one conroller for battery ac in 2.5 v when I inject 19 on pl5 on button come 3.3 v after press charger twise blinking ..But does not turn on..Some advise please ..

please help

i notice nbswon #R does not give high signal 3.3v power button goes from 3.3v to 0.3v I change IO controler i did flash it with vertyanov programmer but same ..3 time blinking charger diode..Please help

not very clear, +3VS5 and +5VS5 have?

not but signal of 3v alw and 5 alw goes after press button ..In my case power buttom 3.3 v goes down 0.3v but power button out 0v ..

1) NBSWON1# have 3.3V ?
2) When the power button is pressed, NBSWON1# does it go down to 0.3V?
3) When you release the power button, does NBSWON1 # remain 0.3V?

NBSWON1# have 3.3V to 0.v

When you release the power button, does NBSWON1 # remain 0.v

and +3VPCU disappears (=0V) ?

no i dont have +3vpcu power button out is always 0v

there is probably a short circuit in the load circuit + 3VS5, for this reason, the protection in the PU2 SY8208B microcircuit itself is triggered, and it stops working. Or SY8208B itself is faulty ..

i have change 3 time new one if i remove IO power button out is 3v I remove coil of 3.3v and 5v alw and inject voltage no short

it is not very clear which coil are you talking about?
Please write with punctuation marks (periods and commas in the sentences), it is very difficult to understand what you are writing ..

Pl7 and PL9 3.3v and 5.5v alw i inject 1v test short but no any short..