Choke Coil Installation; Input Transformer Installation And Its Board Modification; Mounting An Optional Ev-200M Voice Announcement Board; Mounting An Optional Sv-200Ma Surveillance Board - Toa VM-2120 Instruction Manual

Step 3. Turn off (break) the Chime switch when the broadcast is completed. A post-announcement chime
tone will be sent out to the zone(s). (Only when the up & down 4-tone chime has been selected.)
Chime activation switch
Make
Break
Step 4. Press the selected zone selector key (Zone 1 – 5) again to terminate the broadcast.

13. CHOKE COIL INSTALLATION

The work must be done by a qualified service technician only.
For the installation method, refer to the separate instruction manual for qualified service technicians.

14. INPUT TRANSFORMER INSTALLATION AND ITS BOARD MODIFICATION

The following work must be done by a qualified service technician only.
1. Input transformer installation
2. Modification to switch off the phantom power supply
3. Modification when the sub- and master VM amplifiers are connected
For the installation and modification methods, refer to the separate instruction manual for qualified service
technicians.

15. MOUNTING AN OPTIONAL EV-200M VOICE ANNOUNCEMENT BOARD

The work must be done by a qualified service technician only.
For the mounting method, refer to the separate instruction manual for qualified service technicians.

16. MOUNTING AN OPTIONAL SV-200MA SURVEILLANCE BOARD

The work must be done by a qualified service technician only.
For the mounting method, refer to the separate instruction manual for qualified service technicians.
VM amplifier
Pin No. 9
Chime activation
GND
Post-announcement
chime tone
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