The laptop arrived with an unsoldered ITE IT8502E. To whom it may help I have 2 questions:
- is this IT8502E the right controller, I googled it and it seems it may be IT8518E ?
- where can I get a dump of the correct BIOS?

I replaced the controller twice. First, replaced with a IT8502E, then measured voltages on the BIOS chip, got no more than 0.7V. Second I replaced it with IT8518E, the led near the power button lits when I put the power cord on, but I got no image on the screen; then when I press the power buton the power led switched off. If I press the power button again, nothing happens unless I cut the power (19v) , wait for a few seconds and put the power cord back on. Then, everything repeats...

I also replaced the processor and SODIMM memory.

Please advise, thank you!

The right controller for this model is ITE8518
did you connect speakers ?

First, thank you for your reply!
I will connect the speakers and let you know what happens.

Solutions was a correct BIOS and a new ITE8518 chip. Thank you!