Outofwhack
Member
Customers board not turning on. No corrosion evident.
Replaced U7000 and Q7080 and seemed to fix but trackpad cursor had jerkiness.
Very quickly went bad again.
The 68k ohm sparkitecture resistor was not 68kohm so I replaced it with 68kohm and some changes occurred.
Green light would come on momentarily but then extinguish. Sometimes for longer and fans would spin up for a second then stop, then repeat.
Now dead with no green light.
pp3v42 0v (40k ohm to ground so no short)
ppvin_g3h_p3v42g3h 0v
pp18v5_dcin_conn_r 0v
ppdcin_g3h 0.56v
Resistance seen by charger 63kohms
charger no load 0.6v (both my 60W and 85W chargers show same 0.6v)
Is the pp3v42 power supply supposed to start with 0.6v ?
Need help!
Replaced U7000 and Q7080 and seemed to fix but trackpad cursor had jerkiness.
Very quickly went bad again.
The 68k ohm sparkitecture resistor was not 68kohm so I replaced it with 68kohm and some changes occurred.
Green light would come on momentarily but then extinguish. Sometimes for longer and fans would spin up for a second then stop, then repeat.
Now dead with no green light.
pp3v42 0v (40k ohm to ground so no short)
ppvin_g3h_p3v42g3h 0v
pp18v5_dcin_conn_r 0v
ppdcin_g3h 0.56v
Resistance seen by charger 63kohms
charger no load 0.6v (both my 60W and 85W chargers show same 0.6v)
Is the pp3v42 power supply supposed to start with 0.6v ?
Need help!