Unplanned Manual Detonation

This trope is when a character plans to detonate a bomb remotely, but finds out that the remote control is broken. Then he has to go and rig it himself, while cursing quality assurance the whole time.

This is often used to set up either an Outrun the Fireball if the detonator can escape, or a Heroic Sacrifice if he cannot.

Compare to Cut the Fuse, a manual defusing of a bomb, and Hoist by His Own Petard, where an enemy bomb is (often manually) detonated against its original wielders.

Literature

 * Star Wars: New Jedi Order: Force Heretic III: Reunion (how's that for a title?) features a scene of this type involving a gigantic Booby Trapped signal transmitter. The bad guys manage to damage the explosives and one of the heroes has to go back and trigger the manual override—and since there isn't a delay, it'll have to be a one-way trip. A wounded character suspected of being The Mole volunteers on the grounds that his environment suit is damaged and therefore he won't survive the trip back to their base. After some deliberation, the heroes decide to send him in.

Video Games

 * Halo is quite fond of this trope.
 * In Halo: Combat Evolved, Master Chief detonates.
 * In Halo Wars and Halo: Reach, Sgt. Forge and Jorge, respectively,.
 * Also done with the Crow's Nest bomb in Halo 3.