Rear Panel Functions - Marshall Amplification DSL100HR Service Manual

REAR PANEL FUNCTIONS

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26. MAINS INPUT
Connects the amplifier to the mains
electricity supply.
Note: The mains input socket has an
integrated fuse compartment. Ensure that
the value of a replacement fuse matches
the labelling on the amplifier rear panel.
You must always switch the amplifier
off and disconnect it from the mains
electricity supply before attempting to
access the fuse compartment. If in doubt,
contact your Marshall dealer.
27. MIDI IN
Connect your external MIDI device to the
MIDI In socket.
Note: The amplifier only accepts incoming
data and it is not able to send any MIDI
commands.
You can set the channel, the state of
the loop and master volume via MIDI
messages.
MIDI commands allow the remote control
of some front panel functions (refer to MIDI
32 31 30
implementation chart in the user manual).
The MIDI receive channel is factory-set
to channel 1. In order to set a different
channel, press and hold the loop on/off
switch (front panel function #23) while
powering up the amplifier to activate
MIDI waiting mode. The LED will flash
until a valid MIDI command is received.
The MIDI receive channel will be set to
the channel of that command.
To select MIDI OMNI receive, put the
amplifier into MIDI waiting mode and
then press and hold the Master Select
switch (front panel function #18) until its
LED flashes.
Note: When the 2-way footswitch is
connected the amplifier will not respond
to any MIDI messages.
28. FX LOOP RETURN
Connect the output of an external FX
pedal or processor.
29. FX LOOP SEND
Connect the input of an external FX pedal
29 28 27
or processor.
30. F/S
Connect the supplied 2-way footswitch
or the optional 6-way footswitch here.
31. AUDIO IN
Connect an external device here to
practice with or to jam along to music.
32. EMULATED OUT
Emulated line level output for
headphones or connection to a mixer.
The DSL is equipped with a high quality
emulated output using Softube-designed
studio cabinet emulation. This ensures
that your headphone and output signal
from this socket provide the best possible
tone for practice or recording.
Note: Using the emulated out does not
omit the need for a speaker load to be
connected to the amplifier (rear panel
function #33).
Note: For silent recording via emulated
out set the output switch to STB (front
panel function #24).
26
33. LOUDSPEAKERS
There are five speaker outputs available.
They are labelled according to the
intended impedances:
• 1 x 16 Ohm: connect a single 16
Ohm speaker cabinet to this jack.
• 1x 8 Ohm or 2 x 16 Ohm: connect
a single 8 Ohm speaker cabinet or
two 16 Ohm speaker cabinets.
• 1 x 4 Ohm or 2 x 8 Ohm: connect
a single 4 Ohm speaker cabinet or
two 8 Ohm speaker cabinets.
Warning: Although the amplifier has
five speaker outputs, never attempt to
connect more speaker cabinets than
rated. The safe combinations are: 1 x
16 Ohm, 1 x 8 Ohm, 2 x 16 Ohm, 1 x
4 Ohm or 2 x 8 Ohm only. Any other
speaker cabinet configuration may
stress the power amplifier section and
in extreme cases may lead to valve and/
or output transformer failure. NEVER
use DSL100HR or DSL40CR without a
speaker load.
DSL100HR service manual
BOOK-80016-01 | M3390.070
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