So here are some details:
my original PCB board has 3 large chips, i will call them U1, U2 and U5:
U1 reads:
SH6601AF
16A638W
CJCMWSFP
G4
U2 reads:
SAMSUNG 122
K4H2816380-LCCC
H2816 YEE019GNC
U5 reads:
M
88i9045-TFJ2
PAN9320.3
117 BOY
NC
Now for the replacement PCB board again U1, U2, U5...