Hi, i have a lenovo t480s with bios pass, the back case is down and save that while I got the programmer. Now i go pwr on and that no power, the battery is full charge. When i try pwr on only led pwr one time and off and no never turn it on again so that it turns on again I must disconnect cmos...
Schematics of laptop power supplies Adapter
ADP-40MH BDA-Approval Sheet.pdf
Asus model ADP-90SB BB 19V-4.74 .pdf
Asus model SADP-65KB B OUT 19V-3,42A.pdf
COMPAL LITEON PA-1121-04CA 19V 6,32A 120W.pdf
Dell PA-3E PA-1900-28D (LTA804N LTA806N ).pdf
I have this mobo /and whole notebook/ for diagnostics /and repair if I can :)/. There is no schematic for U93, so I'm using U72
DC-JACK is broken so I guess there are 19V on AD_ID line.
3.3V/5V - RT8223P was very hot, so replace it with TPS51125.
Replace dcjack cable. When plug...