Please check Powerbook 190cs, as it shares majority of components with 190, except for the display.
As you can see on the top picture with the machine powered on, there is one of the screen driver chips broken resulting in a dead rectangle on the display. It is rather not repairable.
It is possible to solder regular SMD capacitors in place of those 3.3uF/35V boxes (they contain small electrolytic capacitors inside), but I would not recommend nor do it for the second time. It is too easy to break delicate traces and repairing them is troublesome.
Backlight Inverter Board
Floppy Disk Drive
Mitsubishi Electric MF355H-498MA
Hard Disk Drive
500MB IBM DB0A-2540