JangleBox JB-OB User manual

Master Volume
Pickup selector toggle switch
Neck pickup volume (bass)
Compression attack
Compression gain
Middle pickup volume (if applicable)
Bridge pickup volume
Six-position compression switch
Turning right, clockwise, from far left
position:
n Dark (no compression)
n Medium (no compression)
n Clean (no compression)
n Warm/Darker compression
n Normal compression
n Treble Boost compression
INSTALLATION GUIDE
The JangleBox JB-OB onboard compression circuit will make your prized
300-series Rickenbacker sound glorious, with incredible tone options. It’s
based on the JangleBox JBX, our high-end performance pedal. The JB-OB chime
and sustain will give your guitar a sound unlike any o-the-shelf Rick.
The installation is only seven steps, and can be performed with regular
guitar tools, but it requires patience and attention to detail. Basically, you’re
connecting your guitar’s pickup cables to the JB-OB terminal block. Please first
review all the steps carefully. If you have a reasonable ability to connect wiring,
it won’t be dicult. But if the task isn’t in your wheelhouse, a good repair tech
at your local music store can handle it for you.

GETTING STARTED
 a) Removetheguitarknobs
b) Removethethreeupperpickguardscrewsandrear
pickguardscrew
c) Removethenutsfromoutputjacks
 Gentlyliftthepickguardassemblyfromthebodyoftheguitar
andlayitatthebottomfrontoftheguitar
[FiregloandJetgloguitarsareusedinthismanual]
Yes, we were surprised to discover two
sets of drill holes, too!

NOTEBeforede-solderingorcuttinganywiresplacetheJB-OB
pickguardcarefullyinthecavitytomakesurethedrillholesalign
You’llhavetofinessethepickguardintopositionandpressitto
theexistingholesTheyshouldalignjustfine
Nowyoucande-solderthe
pickupcablesfromtheold
selectorswitchpotentiom-
eterbacksIfyoudon’thave
asolderingironthewires
canbecutandre-stripped
[Justignoretheoldgreen-and-red-
wireassemblyYourJB-OBwill
replaceallofthat]

IMPORTANT:
The pickup cables
consist of a signal
conductor in the
center and ground
shield around the
outside. Make sure
about 1/4” – 3/8” of bare wire is exposed on each conductor.
MAKING THE CONNECTION
 Insertthepickupcableconductorsintotheterminalblockonthe
JB-OBbyopeningthewhiteleversIt’seasiestifyouinsertthe
wirepairssimultaneouslyintothepickupandgroundopenings
Thesignalconductorconnectstotheappropriate“Bridge”
“Middle”“Neck”location(dependingonifyouhaveatwo-or
three-pickupguitar)thegroundshieldconnectstotheadjacent
groundlocationmarked“GND”Makesurethebareground
shieldandbaresignalconductorwiresdon’ttouch—they’ll
shortandyouwon’thearanysound!Ifthere’sabridgeground
wire(distinctfromthebridgepickupwire)insertitintooneof
thepickupGNDlocationswiththepickupwireWhenthewires
areinsertedandthewhiteleversclampeddowngivethecables
alittletugtomakesureallthewiresaresecurelyfastened

 Frominsidethebodypushtheoutputjacksthroughtheserial
numbermetalplateandreplacethewashersandnutsInstall
theVbattery(includedinyourpackage)TheJB-OBassem-
blyisnowreadytosetintoplace
REASSEMBLY
 PositiontheJB-OBpickguardassemblyintothebodycavity
carefulnottopinchthecableswireswiththenewpickguard

 Alignthescrewholesinthepickguardwithholesinthebody
andreplacethethreeupperandrearpickguardscrewsBe
carefulnottoover-tightenscrews
 InstallyouroriginalknobsonthenewJB-OBassemblypots

You’renowreadytoplay!Remember
thatpluggingaguitarcableintothe
outputjack(eitherjackonRick-O-Sound
models)willcompletethenegative
connectionoftheVbatterysobesure
tounplugguitarcableswhennotinuse
topreventdrainingthebattery!
Besuretocheckoutinstallation
anddemovideosat
wwwjangleboxcomjb-ob
The JB-OB is an aftermarket
product from JangleBox, LLC.
It is not aliated with, nor
endorsed by, the Rickenbacker
International Corporation (RIC).
“Rickenbacker®” is a registered
trademark of the Rickenbacker
International Corporation.
WARRANTY: JangleBox LLC warrants that the JangleBox
JB-OB shall be free from defects. Consumer must notify
JangleBox LLC in writing, within one year of delivery of the
JangleBox JB-OB, of any claim that there is a defect in the
circuit. If the JB-OB is found defective by JangleBox LLC,
its sole obligation under this warranty is to remedy such
defect in a manner consistent with JangleBox’s regular
business practices.
The above is a limited warranty and it is the only war-
ranty made by JangleBox LLC. JangleBox LLC makes
no other warranty express or implied and expressly
excludes all warranties of merchantability and fitness for
a particular purpose. JangleBox LLC shall have no liabil-
ity or consequential, exemplary, or incidental damages
resulting from or arising out of the use or installation of
the JangleBox JB-OB.