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Marshall Amplification JVM 4 Series User Manual

Marshall Amplification JVM 4 Series
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ENGLISH
7.0
FACTORY RESET
MIDI RESET
Warning: once the memory is erased it cannot
be recovered.
To erase all the MIDI presets and set the MIDI
reception channel to #1:
1. Ensure the amplier is completely turned
off.
2. Press and hold clean channel switch.
3. Switch the amp on (power switch on, not
standby switch). The 2 channel LEDs will
glow red.
4. Release the switch.
5. To conrm the factory reset press crunch
channel switch. If you want to abort, press
any other switch.
FOOTSWITCH RESET
Warning: once the memory is erased it cannot
be recovered.
To reset the footswitch to the factory default
status:
1. Unplug the footswitch at any of the cable
sides.
2. Press and hold the switch #6 (right switch).
3. Plug in the footswitch cord.
4. Release the switch and the FX LED will
start blinking.
5. If you want to erase the footswitch
memory press the switch #5. To keep the
memory press any of the #1-#4 switches.
6. Release the switch and the footswitch will
synchronise with the amplier.
The factory default is as follows:
FSW #1: clean;
FSW #2: crunch;
FSW #3: OD1;
FSW #4: OD2;
FSW #5: master;
FSW #6: reverb.

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Marshall Amplification JVM 4 Series Specifications

General IconGeneral
BrandMarshall Amplification
ModelJVM 4 Series
CategoryAmplifier
LanguageEnglish

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