6
Using your MI 240 - Front Panel Controls
1.
STANDBY
When the amplifier is plugged into a live wall socket and the POWER switch is turned ON, it will power up in "standby"
mode and the LED (Light Emitting Diode) in the STANDBY button will glow red. In this mode the internal circuitry of the
MI 240 is powered up but disabled so that it consumes very little power and is isolated by relays at its inputs and outputs.
When the STANDBY button is pressed the amplifier circuitry will be activated, but the outputs muted for a short period to
allow the internal voltages to stabilise. During this delay period the LED in the STANDBY button will flash blue and the
display will indicate “MYRYAD MI 240”. Following the delay the standby LED will glow blue continuously, the outputs will
be de-muted and the display will show the last selected input and the volume setting.
When the STANDBY button is pressed again the amplifier will be returned to standby mode. The LED in the STANDBY
button will glow red again and the display will be extinguished.
The MI 240 may also be switched out of standby mode by pressing the either of the TAPE or LINE DIRECT buttons on
the front panel, or any of the input select keys on the remote control. When activated in this way, the MI 240
automatically selects the chosen input.
CAUTION
:
When in standby mode the internal circuitry of the MI 240 is still live, so all safety precautions MUST be
followed.
2.
Infra-red receiver
The infra-red (IR) remote control receiver is mounted behind the window, just above the display. It must not be obscured
when the amplifier is to be operated using the remote control handset. Where possible it is best to arrange that the IR
window is in "line-of-sight" of the remote handset.
3.
Display
The operation of the MI 240 is indicated on a high quality blue Vacuum Fluorescent Display (VFD). During normal
operation the selected input will be shown to the left of the display and the volume setting to the right – e.g. “TUNER -
23.5dB”.
4.
Volume control
The volume control adjusts the sound level for both loudspeakers and headphones and the signal fed to the BI-AMP
outputs. It does not affect the signals fed to the TAPE and CD-R REC sockets so it can safely be adjusted whilst making
a recording.
The volume is adjustable in fine 0.5dB steps and the setting is indicated to the right of the VF display, for example “-
23.5dB”. When first switched on the volume sets automatically to –20dB, which is a typical listening level. If the volume
is set below –20 then this will be remembered when the MI 240 is switched into STANDBY and re-instated when it is
switched on again. However, if the unit is switched to STANDBY with a volume setting higher than –20, it will be reset to
–20 when switched on again to protect against excessive sound levels.
If the volume is reduced below –80dB the outputs (loudspeaker, headphones and bi-amp) will be muted. The outputs will
be de-muted as soon as the volume control is advanced, or volume
s
or MUTE pressed on the remote control.
