820-2327 No green Light

[Upgrade]

Hello, Super newbie here trying to fix really old board 820-2327

I have traced PP18V5_G3H from charger 18.4
F6905
R6905 18.4 V
D6905
Pin 1 18.4
Pin 3 0.006
pin 4 17.6
pin 5 17.6

i have tested and changed U6990

Pin 1 17.6
Pin 3 17.6
Pin 5 0.52
Pin 6 1.63
Pin 7 0.48
Pin 8 0.62

PPBUS_G3H measured at F9800 0.013

PP3V42_G3H_REG 0.48

Not sure what to do next

Help would be appreciated

 

[arghhh]

Resistance to ground on pp3v42_g3h?

 

[2informaticos]

Check first resistance to ground at L6995.
Correct value is around 300 on diode scale, red to ground.
If no low, check R6995/96 and be sure C6994 is there.