Revox M 219 - Manual (Page 11)

M219 room amplifier Re:connect
10
(3) Voltage input IN (from serial # 2 000)
Using the voltage input IN on the M219, the local audio input LOCAL
IN 1 can be activated by the application of 5 – 24 VDC. This means that
as soon as the voltage is present at IN, the M219 switches on
automatically and selects the input LOCAL IN 1. When the voltage is
removed from input IN, the M219 switches off again automatically, as
long as no other source apart from LOCAL IN 1 was addressed.
With DIL switch (3), you can define whether the volume control is
handled by the M219 (Floating Volume) or the connected (TV) device
(Fixed Volume). With Fixed Volume, the M219’s volume control is
deactivated and the audio signal at LOCAL IN 1 is transmitted with a
fixed strength. In this way, volume control is carried out with the TV
remote control.
The volume control setting set by DIL switch 3 only has an effect on the
local audio input LOCAL IN 1. All other sources are unaffected and
operate normally.
LOCAL IN 1
DIL switch
3
DIL position
Floating Volume Off
3
Fixed Volume On
3
Application: Many devices output a voltage as soon as they are
switched on. If you connect the voltage output of such a
device with the IN voltage input on the M219 and the
audio output with the local audio input LOCAL IN 1, the
M219 will switch on automatically with the other device
and transmit the sound.
If your device doesn’t have a voltage output, you can
supply voltage to the input using a sensor-switch multiple
socket outlet (Master/Slave socket outlet) and a normal
plug-in power supply (5-24 V= / DC). Please refer to the
diagram on Page 11.