Changing Sources. To change to another source press and release the MR164 keypad INPUT button followed by the UP or DOWN button to scroll through the four sources until the desired source is displayed on the MR164 display. The amplifier for this room will then switch to this source.
To change sources in this room only from the RB12 remote control simply press the 1 to 7 button to directly go to the desired source.
Volume Up and Down: To adjust the volume up or down (always) first press the MR164 VOL button then quickly press the UP or DOWN button until the desired changed volume level is reached on the MR164. Holding the button gives continuous changes. After the UP or DOWN button has been released the MR164 keypad may display the current relative volume setting of low, mid, high etc.
To change the volume using the RB12 remote press the UP or DOWN button until the desired changed volume level is reached on the MR164. Holding the button gives continuous changes. After the UP or DOWN button has been released the MR164 keypad may display the current relative volume setting of low, mid high etc.
Mute: Momentarily press the MR164 keypad or RB12 remote
MUTE button. The LCD display will Mute display:
To restore the sound press the MUTE, UP or DOWN button on the MR164 keypad or RB12 remote and the source selected when the mute button was first pressed and the former volume level is restored.
Turn Room Off: Momentarily |
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press the MR164 keypad OFF |
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button or RB12 remote POWER |
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button. The MR164 will display: |
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If any other room was turned on, only this room will shut off and other rooms will not be affected. If this was the only room turned on since the system was
♦To change all rooms to the same source, this room must be listening
to a source first. Press the ALL
button, quickly press the INPUT button then the UP or DOWN button until the desired source is displayed on the LCD display. All of the rooms will be now be playing that source at about 30% volume.
Note: Be very careful when turning up the whole house volume. The volume levels increase together, but rooms with their volume already set high may damage equipment when their volume is increased.
♦To change the whole house volume, this room must be listening to a source first. Press the ALL button, quickly press the VOL button then the UP or DOWN button until the desired volume in all rooms is achieved. Please note all rooms will not necessarily be at the same volume as some may have initially been at a higher or lower volume and had the volume changed from that point. The whole house volume changes more gradually than when changing individual room volumes.
♦To turn the whole home system off (except for sources), press the ALL button then quickly press the OFF button. The whole 
system will start its turn off
procedure. The LCD keypad will display:
Another way to achieve turning the whole system off is to press the MR164 OFF button for about 5 seconds. To turn the whole home system off from the RB12 remote control, press 
the POWER button for about 5
seconds. The MR164 keypad will then display:
RB12 Remote Layout
first turned on, then the whole system will shut off and the MR164 will display a few seconds later:
Sources may have to be turned off manually or by remote.
ALL System Commands
The ALL button is used to change the whole house volume (only for rooms already turned on), select one source for all rooms or turn all rooms off.
Power: switches room off or whol house off(press for 5 seconds)
Input 
on room and selects input
music source
POWER
1 2
34
INPUT
systems
MUTE
+
VOL 
- 
RB8
All commands are from the MR164 keypads only and cannot be done from the remote control.
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