i9003 two model pcb

[Apple User]

i9003 has two model pcb. what different between these?
i need schematic for model A

[prasutirur]

i need i9003 schematics,
backlight problem

[habibboxes]

there is no difference between this 2 models

to fixe backlight probleme:
1-flash your phone
2-change lcd
3-clean lcd connectore on board HDC900
4-resolder lcd connectore legs on board HDC900
5-resolder or change IMI filter F900-F905
6-check c836=3.0v.;c803=1.8v.????? if not rehot or replace PMIC(U807)
7-after replacing PMIC(U807) c836=3.0v.;c803=1.8v.???? if not replace c836 & c803


DON'T FORGET TO PRESS THANKS

[d-Artigo]

Originally Posted by prasutirur

i need i9003 schematics,
backlight problem

samsung gt-i9003 display light
check working voltage ic U908 lights on C915 and L902
check its cathode lamp line at R917 ..... its anode light path in C917 and display backlight enablenya at R903
if its supporting components are still good ... replace ic U908
(All components of its position near the on off switch)
see the picture below


only thank button

[milanlove]

which ic is near crystal above of display connecter

[cablos]

Originally Posted by habibboxes

1-flash your phone

what does "flash your phone" mean??
thanks