专修笔记本, pl evaluate HP Omnibook XE3 GC blackscreen

worth to repare or not? It can stand on 1-2 hours in the initation turn-on, and goes to black, then it can be turn on again and again but only last for 10 minutes. The problen seems not in the LCD screen beacuse when connected to another monitor, it happens the same way. Somepeople told me it is the fan problem. Does it worth to repare? Thanks for suggestion! Lily