Hi, ive got a 820-3476-A that takes charge normally the first time you connect the charger, but if disconnected and connected again, the light wont turn on and it wont take charge.
Taking charge:
PPBUS_G3H = 12.54v
PP3V42_G3H = 3.4v
PP18V5_DCIN_FUSE = 16.25
Not taking charge:
PPBUS_G3H = 1.6v
PP3V42_G3H = 0v
PP18V5_DCIN_FUSE = 2.6v
Taking charge:
PPBUS_G3H = 12.54v
PP3V42_G3H = 3.4v
PP18V5_DCIN_FUSE = 16.25
Not taking charge:
PPBUS_G3H = 1.6v
PP3V42_G3H = 0v
PP18V5_DCIN_FUSE = 2.6v