A1425 820-3642

[Instafixx]

I changed with many resistors. Still the same. What is the correct value ?

 

[2informaticos]

47 ohm; 22-39 can also be used.

 

[Instafixx]

replaced with the correct Value.
Now R6920 and now getting 16.73V on both pins.
Still not on.

PPBUS_G3H_R
is 7.5V at D6902
but at R6905 its 0.4V

Removing the resistor is get 7.4V.

Bad R6905 too ?

 

[2informaticos]

Do you get correct 3V42_G3H now?

 

[Instafixx]

Yes 15.6V

 

[2informaticos]

"3V42_G3H"
Really???

 

[Instafixx]

PPVIN_G3H_P3v42G3H is 15.6V
3v42_g3h is 0.15V
It's shorted too. Let me check and revert

 

[Instafixx]

U4900 IC heating up on voltage injection.

 

[2informaticos]

You should replace SMC...