820-3332 NO POWER

[thomamagic]

hello,
client have change battery, machine works during 2 month and now no power
i have check no water damage
PPBUS_G3H have only 3.5V
I have remove F7040/41 and same, 3.5V on pin 1 and 1.12V on pin 2
Replace U7000 for check and same
PP3V42_G3H is present
i have green light on charger

 

[2informaticos]

Keep out F7040/1.
Post U7000's basic voltages: 2, 3, 9,12, 13, 14, 15, 17, 19, 20, 27.

 

[thomamagic]

U7000's basic voltages:
2 : 18.54V
3 : 0v
9 : 0.03v
12 : 3.39V
13 : 3.36v
14 : 0V
15 : 0.05V
17 : 0.34V
19 : 5.5V
20 : 5.5V
27 : 0V

 

[2informaticos]

"3 : 0v"
Fix this problem.
U7000 requires good ACIN signal; 4V aprox.

 

[thomamagic]

i have fix, pin 3 have 4.47V but not start

 

[thomamagic]

now i have
2 : 18.4v
3 : 4.47v
9 : 0.03v
12 : 12.28V
13 : 3.36v
14 : 3.24V
15 : 0.06V
17 : 12.28V
19 : 5.5V
20 : 5.5V
27 : 0V

 

[thomamagic]

of course i have put F7040/41 and have 12.2V but not start

 

[2informaticos]

Are you sure about pins 12 and 27???