M237, Dc brick – Dunlop Manufacturing M237 User Manual
Page 2

M237
DC BRICK
DESCRIPTION
• Powers eight 9V pedals and two
18V pedals all at once without
sacrificing signal integrity
• Features 8 red LEDs to clearly
indicate short-circuited pedals
• Includes AC adapter and all
necessary cables to connect
pedals to the unit
DIRECTIONS
• Connect included AC adapter
into the DC Brick’s 18V IN jack.
• Plug the AC adapter into a
wall outlet; the blue power
LED will light.
• Connect up to eight pedals
requiring 9V power to the eight
9V OUT jacks using the included
barrel-to-barrel cables.
• Connect up to two pedals
requiring 18V power to the two
18V OUT jacks using the barrel-
to-barrel cables.
POWER
The DC Brick requires an 18V
regulated power supply rated at
2000 mA, with 5.5mm x 2.1mm
positive barrel, negative center
plug. The included power
adapter can utilize a wide range
of wall power, from 100-240V at
47-63Hz. Optional international
wall adapters can be ordered
from your Dunlop dealer.
CONNECTION NOTES
• Included cables use industry
standard 5.5mm x 2.1mm
positive barrel, negative
center polarity plugs.
• Eight 9V outputs can handle
an average of 150 mA each,
or a total of 1200 mA in
any configuration.
• Two 18V outputs can handle
an average of 400 mA each,
or a total of 800 mA in any
configuration.
• All outputs may be used
simultaneously for a total
current output of up to 2000 mA.
• The DC Brick is not compatible
with positive ground pedals.
Use of positive ground pedals
may cause short circuiting.
DUNLOP MANUFACTURING, INC.
P.O. BOX 846 BENICIA, CA 94510 U.S.A.
TEL: 1-707-745-2722 FAX: 1-707-745-2658
CONTROLS
18V IN receives power from
18V DC Adapter
9V OUT jacks power eight 9V
pedals; RED LEDs indicate
short-circuited pedals
BLUE LED indicates whether
the DC Brick is powered
18V OUT jacks power two
18V pedals
TROUBLESHOOTING
The power LED fails to light.
• Dead AC outlet. Try plugging into another outlet,
or test the outlet with another device like a lamp.
• Faulty connection. Double check plugs to
make sure they are inserted securely.
• Short circuited output. For 9V outputs
disconnect the cable from the jack whose
red LED is on. If no LEDs are on, disconnect
the cables from the 18V jacks. Wait 5 to 10
seconds for the unit to reset. This will be
indicated by the blue LED turning back on.
Power provided to some effects, but not others.
• Incompatible power plug. Check that the
dimensions and polarity of the pedals are
compatible with the provided cables.
• Faulty cord. Check by swapping the power
cable with another known good cable.
• Faulty jack on DC Brick. Check by plugging the
power cable into a different DC jack.
• Faulty jack on the pedal. Test by running the
pedal off battery power.
SCORE/FOLD
SCORE/FOLD
SHORT TRIM
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