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Table of Contents 

 

Table of Contents.............................................................................................................................................................. v

   

Introduction ......................................................................................................................................................................1

   

Rack Gizmo Features ..............................................................................................................................................................................................1

   

Front Panel ........................................................................................................................................................................2

   

Rear Panel..........................................................................................................................................................................3

   

Controls and Connectors......................................................................................................................................................................................4

   

Front Panel.................................................................................................................................................................................................................4

   

Rear Panel...................................................................................................................................................................................................................4

   

Special Features ................................................................................................................................................................7

   

Audio Buffer ..............................................................................................................................................................................................................7

   

Click Stopper .............................................................................................................................................................................................................7

   

Front Panel MIDI Connector................................................................................................................................................................................7

   

Function Switching a.k.a. Controlling Your Amp.........................................................................................................................................8

   

Stereo Loops .............................................................................................................................................................................................................8

   

Setup Examples.................................................................................................................................................................9

   

MIDI Usage ......................................................................................................................................................................14

   

MIDI Continuous Controllers............................................................................................................................................................................ 14

   

Bank Selection ....................................................................................................................................................................................................... 15

   

Backing Up Your Settings: SysEx Dump ....................................................................................................................................................... 15

   

Setup Mode .....................................................................................................................................................................16

   

Selecting MIDI Channel and MIDI Options.................................................................................................................................................. 16

   

MIDI Channels................................................................................................................................................................................................... 16

   

Continuous Controller Ranges ................................................................................................................................................................... 16

   

GCX Compatibility Mode .............................................................................................................................................................................. 17

   

CC Disable .......................................................................................................................................................................................................... 17

   

Bank Select Enable .......................................................................................................................................................................................... 17

   

Saving MIDI Channel and Options ............................................................................................................................................................ 17

   

Invert Mode ............................................................................................................................................................................................................ 17

   

Momentary Mode ................................................................................................................................................................................................ 17

   

Group Mode ........................................................................................................................................................................................................... 18

   

Quick Setup Buttons............................................................................................................................................................................................ 18

   

Factory Reset.......................................................................................................................................................................................................... 19

   

Troubleshooting .............................................................................................................................................................20

   

Grounding Issues ............................................................................................................................................................21

   

Specifications ..................................................................................................................................................................22

   

Amp Connector Pinout ...................................................................................................................................................................................... 22

   

Front Panel MIDI Connector............................................................................................................................................................................. 23

   

Rack Gizmo MIDI Implementation Chart ......................................................................................................................24

   

Warranty ..........................................................................................................................................................................27

   

Summary of Contents for Rack Gizmo

Page 1: ...Rack Gizmo User s Manual RJM Music Technology Inc TM...

Page 2: ......

Page 3: ...Rack Gizmo User s Manual Version 1 0 August 3 2011 RJM Music Technology Inc 2525 Pioneer Ave Suite 1 Vista CA 92081 1 760 597 9450 email support rjmmusic com web www rjmmusic com TM...

Page 4: ...Copyright 2011 RJM Music Technology Inc All Rights Reserved Amp Gizmo Effect Gizmo Rack Gizmo Click Stopper MasterMind Mini Amp Gizmo and the RJM logo are trademarks of RJM Music Technology Inc...

Page 5: ...Continuous Controllers 14 Bank Selection 15 Backing Up Your Settings SysEx Dump 15 Setup Mode 16 Selecting MIDI Channel and MIDI Options 16 MIDI Channels 16 Continuous Controller Ranges 16 GCX Compati...

Page 6: ...le loops unless yours was ordered with the 8 stereo loop option The stereo capable loops can switch either mono unbalanced stereo unbalanced or mono balanced signals using TRS jacks Rack Gizmo Feature...

Page 7: ...2 Front Panel 1 2 3 4 6 5...

Page 8: ...3 Rear Panel 23 24 22 21 20 18 19 18 16 19 17 18 16 19 17 12 13 7 8 6 9 10 11 25 15 16 14 17 18 16 19 17...

Page 9: ...d meaning that they are internally connected to another jack inside the unit A pair of normalled jacks is indicated on the rear panel by a line leading from one jack to another The signal is normalled...

Page 10: ...dio Loops 5 through 8 Audio loops 5 through 8 are fully isolated not electrically connected to each other in any way Each loop has its own discrete input and output When a loop is off the Send and Rec...

Page 11: ...use a 9VAC adapter to power the Rack Gizmo the phantom power output will be 12VAC 24 Gnd Lift This switch controls whether or not the Rack Gizmo chassis is grounded If the button is out the chassis i...

Page 12: ...eable when using a high gain amplifier or overdrive and distortion pedals The Click Stopper circuit found in the Rack Gizmo is designed to greatly reduce this click noise by muting the audio output br...

Page 13: ...t a standard guitar cable from the Out jack of the loop Make sure nothing is connected to the In Send or Return jacks of the loop Connect the other end of your cable to the footswitch jack of the amp...

Page 14: ...tuner The guitar signal passes from the front panel jack through the buffer then through the first 4 audio loops through the Click Stopper circuit and into the amp s input The last four loops are ins...

Page 15: ...ner The guitar signal passes from the front panel jack through the buffer then through the first 8 audio loops and then through the Click Stopper circuit before going to the amp The Rack Gizmo control...

Page 16: ...the Click Stopper circuit The last two loops are used to select between two amps You can turn on either amp both amps or none for silent tuning Loop 7 enables amp 1 Loop 8 enables amp 2 You may need...

Page 17: ...stereo The power amps of both amps are always active and running in stereo Isolation transformers are used to eliminate ground loops It s best to try everything without the transformers and if you hav...

Page 18: ...he Click Stopper then goes to the preamp The stereo preamp output signal is sent to two stereo effects processors in audio loops 7 and 8 mixed in parallel with the dry signal then sent to a stereo pow...

Page 19: ...dual loop For example you can have a button on your controller assigned to turn an overdrive pedal on or off without affecting any of the other loops By default the following continuous controller num...

Page 20: ...Rack Gizmo and the Rack Gizmo will immediately send the SysEx Dump It only takes a couple of seconds to complete If you wish to copy settings from on Rack Gizmo to another connect the MIDI Thru Out ja...

Page 21: ...end receive channel use the Audio Loop buttons to select the channel as shown below MIDI Channel Audio Loop 1 LED Audio Loop 2 LED Audio Loop 3 LED Audio Loop 4 LED 1 OFF OFF OFF OFF 2 ON OFF OFF OFF...

Page 22: ...DI bank selection When Function Switch 8 is off the Rack Gizmo will ignore MIDI bank select messages When Function Switch 8 is on the Rack Gizmo will respond to bank select messages as described on pa...

Page 23: ...Audio Loop button will only affect other Audio Loops and pressing a Function Switch button will only affect other Function Switches Once you ve selected the loops that need to be grouped press the Wri...

Page 24: ...Audio Loop 1 and Audio Loop 4 buttons while powering up the Rack Gizmo All of the LEDs will turn on for a few seconds then turn off Once they turn off factory reset is complete and you can release the...

Page 25: ...the buffer is too loud or too quiet Solution There is a buffer level adjustment inside the Rack Gizmo This is set to unity gain at the factory but can be adjusted to provide a boost Remove the Rack Gi...

Page 26: ...er cable from every pedal If the hum goes away you need to upgrade to a better isolated power supply Step 3 If you have more than one amp connected disconnect the audio connection s to one of the two...

Page 27: ...t your RJM Music dealer or the RJM Music web site to find the correct cable for your amp note if you wish to make your own cable Switchcraft part number 15BL8MX or Preh part number 71408 080 are good...

Page 28: ...IDI input so it is very important to only use one of the two connectors at a time The pinout is as follows 1 Phantom power power jack tip 2 Phantom power power jack sleeve 3 MIDI output pin 4 on a sta...

Page 29: ...System On Yes No Turn GM2 System On Yes No Turn GM System Off Yes No DLS 1 Yes No File Reference Yes No Controller Destination Yes No Key based Instrument Ctrl Yes No Master Fine Coarse Tune Yes No O...

Page 30: ...B N N 19 General Purpose Controller 4 MSB N N 20 N N 21 N N 22 N N 23 N N 24 N N 25 N N 26 N N 27 N N 28 N N 29 N N 30 N N 31 N N 32 Bank Select LSB N N Use CC 0 instead 33 Modulation Wheel LSB N N 34...

Page 31: ...General Purpose Controller 6 N Y Audio Loop 2 82 General Purpose Controller 7 N Y Audio Loop 3 83 General Purpose Controller 8 N Y Audio Loop 4 84 Portamento Control N Y Audio Loop 5 85 N Y Audio Loop...

Page 32: ...eturned freight prepaid to RJM Music Technology with a copy of a valid receipt and RMA number Return shipping will be paid by RJM Music Technology within the U S only This warranty is transferable pro...

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