A user manual is available from this link:-
Check for a hidden power switch under the lower left or right under corner of the screen, ensure it is ON (- not sure if this switch is fitted to your model, but it does exist on other Fujitsu models).
Fujitsu no longer support or manufacture plasma screen TVs - therefore no parts are available from them. [Fujitsu only serviced to board replacement level - very expensive].
The Fujitsu models (generally, after 4 or more years use) suffer from cracked solder joints on circuit boards (due thermal cycling stress).
See Fixya tips:-
"Fujitsu Plasma 42" random shutdown - continuous flashing red led".