X640 blue display

[doktortelecom]

Hello,
i received from a customer an X 640 phone with all blue display. It si full working but only blue display , i verified lcd and flex cable , they are ok (another x640 mainboard lights display ok) so the defect is on the mainboard, i tryed E2P full and custom reset, i tryed hiden contrast codes, even fullflash i made, but still same problem: blue display.
Any idea, someone ... some schematics, or service manual...
regards,
doktortelecom

[auth_repair_cen]

i had one the same in work and could not fix it i had to replace the pba main
.

[TONYTONY]

man, can you please tell me what PBA is?

thanks mate,

tonytony

[TONYTONY]

What I found so far is that PBA stands for 'Printed Board assembly'.

Does that mean you replaced the mainboard?

tonytony

[sandarva]

no one can help us samsung x640 blue display ? phone can make a call but blue display i try new flex and lcd also but same prob

[assalitarek]

http://rapidshare.com/files/148531548/x640blue_5B1_5D.JPG
good solution