1990 q45 alarm reset. does the alarm disable the engine?

recently the alarm was tripped on my 1990 q45. now the engine wont start. the engine makes a whining sound and the fan rotates when i turn the key. yet the engine doesnt sound like it has any compression and wont start. i am almost certain that the alarm has disabled the engine or something of that nature, because the car did this once before and no mechanic could figure out the problem. the timing chain was inspected and passed as well as the starter replaced last time this happened.

has anyone else had this problem?

does anyone know how to reset the engine disabling aspect of the factory security alarm?