schematic diagram for dei 514t circuit

I've been unsuccessful in finding a schematic diagram of the circuit board for the dei 514T revenger soft chirp siren. As some of you know, there are 6 tones and can modify this siren to play only certain tones. I'm interested in tone #6 which sounds like a firetruck traffic blast, however, I'm looking for the circuit that stops the sounds from pulsing. I want the sound to be constant when activated.

i believe the part number is 514n mr jmrbounce.

you are right, it is a 514N...thank you for the correction. I need a schematic diagram of this circuit board. Does anyone know where I can find it?