Rear Panel - Musicom Lab EFX MK-V Owner's Manual

1.5 Rear Panel

IN Jack
This is the main input jack where your guitar plugs in.
SND 1-7, RTN 1-7 Jacks
These jacks provide mono-send mono-return effect loops. SND 1 7 send signals to effect pedals. RTN 1 7
receive signals from effect pedals. Connect the SND 1 7 jacks to the INPUT jack of each effect pedal, and
connect the OUTPUT jack of each effect pedal to the RTN 1 7 jacks.
SND 8, RTN 8S Jacks
These jacks provide a mono-send stereo-return effect loop. RTN 8S jack is stereo capable using TRS
connectors. If the last stage of the chain is the stereo-send effect loop or the output, the signal is output
in stereo. If the last effect loop in the chain is the mono-send effect loop, only the signal received at the
tip conductor of the RTN 8S jack is output.
SND 9S, RTN 9S Jacks
These jacks provide a stereo-send stereo-return effect loop. These jacks are stereo capable using TRS
connectors. If the last stage of the chain is the stereo-send effect loop or the output, the signal is output
in stereo. If the last effect loop in the chain is the mono-send effect loop, only the signal received at the
tip conductor of the RTN 9S jack is output.
SND VL, RTN VL Jacks
These jacks are for connecting a volume pedal. You can also use these jacks as send/return for a preamp.
OUT-L, OUT-R Jacks
These are the output jacks. OUT-L and OUT-R can be turned on/off independently. If the last stage of the
chain is the mono output, the OUT-L signal is split up in to the OUT-R.
TUNER Jacks
This jack is for connecting an external tuner.
F1/F2, F3/F4 Jacks
Latch or momentary function switch jacks for amplifier channel switching or on/off controlling of reverbs.
TRS plug's Tip: F1 & F3
TRS plug's Ring: F2 & F4
TRS plug's Sleeve: Common ground for F1/F2 and F3/F4
ISO-IN, ISO-OUT Jacks and ISO PHASE switch
There is an isolation transformer between ISO-IN and ISO-OUT jacks. The isolation transformer may help
reduce hum that can occur when using two amps or 4CM. If ISO-IN and ISO-OUT are used, ISO-OUT can
also be inverted the phase of ISO-IN by pressing the ISO OUT PHASE switch.
MIDI IN, MIDI OUT/THRU connector
MIDI IN connector receives MIDI signals from an external MIDI device. MIDI OUT/THRU connector is used
to feed MIDI signals to external MIDI devices. When the operation mode of MIDI OUT/THRU has been set
to 'THRU', MIDI signals received at MIDI IN pass through the EFX MK-V without any changes.
DC12V power connector
This is the main power input for the EFX MK-V. The EFX MK-V requires a DC12V supply. The current draw
is approximately 300mA at DC12V (Center Negative).
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EFX MK-V Audio Controller Owner's Manual