Microphone Circuit Between Overhead J/B and Multi-Display

Microphone Circuit between Overhead J/B and Multi-display

DESCRIPTION

This circuit sends a microphone signal from the telephone microphone amplifier (overhead junction block) to the multi-display. It also supplies power from the multi-display to the telephone microphone amplifier.

Wiring Diagram:

Step 1-2:

Step 2 (Continued)-4:

INSPECTION PROCEDURE