820-00923 water damage 5v no ppbus

yair37

Member
its crazy any few min its act different, the new act now. is..
no battery: if I'm waiting 5min and plug the charger I get 19v 0.5A fans full spin but no screen or keyboard activity.
 

yair37

Member
o.k back to this s*** board.

charging 5v 0.3a
PPBUS_G3H -0.6V DIDE MODE 450
PP3V3_G3H- 3.3V
PPVBAT_G3H_CHRG_REG 0.6V DIDE MODE 450
dont know how to continue from here...
 

2informaticos

Administrator
Staff member
You don't get 0.100 in diode mode at pin 2 of F7000 anymore?
That's good, but what did you find as bad component there?
Also check diode mode reading in reverse way (black probe at ground); should get OL.
 

yair37

Member
You don't get 0.100 in diode mode at pin 2 of F7000 anymore?
now its 0.450

That's good, but what did you find as bad component there?
i dont do nothing!! this board drive me crazy! sometimes is 20v ppbus is 13v and suddenly its 5v ppbus 0.5v o_O...now its look stable so i want to restart the work...

Also check diode mode reading in reverse way (black probe at ground); should get OL.
yes F7000 is OL.
 

2informaticos

Administrator
Staff member
I suppose that voltage with battery alone.
I was expecting to get the voltage with both charger and battery connected too.

BTW, really need to quote the previous post entire???
 
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