TOA Electronics VM-2120 instruction manual VM Amplifiers Internal Function Switches

23.2. VM Amplifier's Internal Function Switches

Caution: Leave the following work to a qualified service technician.

Be sure to switch off the power before the work.

Step 1. Remove 4 screws on the amplifier rear panel and a total of 6 screws on the sides to remove the cover.

Side: M4 x 8 machine screw 3 pieces each

Rear: M3 x 6 machine screw and M3 plain washer 4 pieces

Step 2. Set the amplifier's internal DIP switches SW2, SW3, and SW4 according to the table below. Step 3. Replace the amplifier cover using the screws removed in Step 1.

Internal DIP switches

SW4						SW3
ON			ON
1	2
		1		2	3	4	5	6	7	8

SW2

ON

1 2 3 4 5 6 7 8

SW4

SW3 SW2

VM amplifier's front panel

SW2 switch setting (All switches are factory-preset to OFF position.)

Switch No.	1	2	3	4	5	6	7	8
Function	Inputs 1 – 3			TEL Paging	Voice Announcement Board's			Priority Mode
	Broadcast Priority Level			Priority Level	Message Priority Level			for Same
	Input 1	Input 2	Input 3		Message 3	Message 4	Message 5	Priority Unit
ON	1	1	1	1	3	3	3	Unit No. Priority
								(Numerical order)
OFF	2	2	2	2	1	1	1	First/Last
								Priority

SW3 switch setting (All switches are factory-preset to OFF position.)

Switch No.	1	2	3	4	5	6	7	8
Function	First/Last	Priority 2	Mode after	Input 3/LINE	Unit Type	No. of Connected
	Priority*	Mixing	Emergency Talk	(Input 3/MIC)		Units
				Chime On/Off
ON	First-come	Mixed	Silent	On	Sub-unit	See the Connected
	first-served			(off)		unit No. table on the
OFF	Last-come	Not mixed	Evacuation	Off	Master	next page.
	first-served		message	(on)	unit

*This function is set in relation to the SW2-8 switch. (See p. 27 "GENERAL-PURPOSE BROADCAST PRIORITY" for details.)

49