7
5.
SOURCE SELECT
s
and
t
These buttons scroll up or down through the inputs to select the source you wish to listen to. The display shows which
input has been selected. The SOURCE
s
and
t
buttons scroll through all the sources except TAPE. The TAPE and
LINE DIRECT inputs may be selected by the named input buttons – see below.
Whichever source is selected will be sent both to the loudspeakers and to the TAPE REC and CD-R REC output
sockets for recording. The only exceptions are CD-R which will not be fed to the CD-R REC output sockets as this could
cause dangerous oscillation and LINE DIRECT which bypasses the record outputs. Recordings may be made from CD-
R to TAPE, but not from TAPE to CD-R.
6.
TAPE
When you press the TAPE button you can hear the output signal from a tape deck connected to the TAPE PLAY
sockets on the rear panel. This is a "toggle" function switch: you press it once to engage and press again to disengage
and return to the previously selected source. The Tape monitor function may also be disengaged by pressing either of
the SOURCE
s
t
buttons or any input select key on the remote control.
Pressing the TAPE button has no effect on any other input selected. The signal source already selected will continue to
be fed to the TAPE REC (and CD-R REC) output sockets, irrespective of whether the TAPE button is engaged or not. If
you have a "three-head" tape deck that permits off-tape monitoring you can use the TAPE button to switch back and
forth between the source signal and the off-tape signal, to check its quality, whilst the recording is in progress.
NOTE
: If the TAPE button is engaged with no signal source connected to the TAPE PLAY sockets, or with no tape
running, then you will hear only silence, regardless of the settings of any of the other controls.
7.
LINE DIRECT
Pressing this button provides instant access to the LINE DIRECT input, indicated in the display by “DIRCT”. It may be
deselected by changing the source using the SOURCE SELECT buttons, or by pressing the LINE DIRECT button again.
When LINE DIRECT is deselected by pressing the LINE DIRECT button again (or “7.1 CH” on the remote control) the MI
240 will switch to the CD input.
8.
Headphones socket
The headphones socket will accept a standard ¼" (6 mm) stereo jack plug or adapter. All types of headphones of any
impedance may be used, with one exception: electrostatic headphones are usually supplied with an adapter unit which
must be connected directly to the loudspeaker terminals.
Insertion of a plug into the headphones socket automatically disconnects the loudspeakers and the bi-amp outputs. In
order to resume listening to loudspeakers you must unplug the headphones from this socket. The headphones output is
muted when switching out of STANDBY mode and also in MUTE mode.
LOUDSPEAKER OUTPUT PROTECTION AND MUTING
When the amplifier is in standby mode all the input connectors, the headphones and bi-amp outputs and the
loudspeaker output terminals are isolated from the amplifier by high quality relays. When the amplifier is first switched on
from standby mode all the outputs remain disconnected for a few seconds to allow the internal voltage levels to stabilise.
The same process occurs when the amplifier is switched back into standby mode.
The loudspeaker and headphones mute relays are also used to protect both the amplifier and your loudspeakers or
headphones against possible damage. If any one of a number of fault modes is detected (loudspeaker outputs short
circuit, amplifier overheating, amplifier DC fault) the loudspeakers will be disconnected from the amplifier to protect both.
In the case of a short circuit or DC fault the loudspeakers will be re-connected after a few seconds, but will be
disconnected again if the fault persists. If overheating has caused the protection system to operate, then it will take
some time for the heatsinks to cool sufficiently to allow the loudspeakers to be re-connected (probably between five and
fifteen minutes depending upon the room temperature and ventilation). The amplifier will cool more quickly if it is
switched to standby mode, or if the POWER is switched OFF.
