Instruction Manual
www.johnsonsystems.com
4
Packaging & Contents
Each DE90-3000 Series retrot control system is shipped in a custom designed box and packaging
for protection of the unit. Keep the box and packaging stored in a safe place. In the unlikely event
that the system needs to be returned to the JSI Factory, the packaging will be required to prevent
shipping damage and maintain warranty.
Each DE90-3000 Series retrot control system includes all of the parts required to complete the
retrot.
Parts included with the DE90-3000 Series retrot control system:
• DE90-3000 Backplane.
• DE90-3000 Front Panel (Faceplate).
• 26-Conductor Ribbon Cable used to connect the Front Panel (Faceplate) User Interface Board
to the Backplane.
• 3-Conductor Cable used to connect the Front Panel (Faceplate) DMX-B Input receptacle to the
Backplane.
• 2-Conductor Cable used to connect the Front Panel (Faceplate) Panic Switch to the Backplane.
• Eight (8) #6-32 x 1/4" mounting screws used to secure the DE90-3000 Backplane.
• Two (2) #6-32 x 3/8" mounting screws used to secure the DE90-3000 Front Panel (Faceplate).
• Two (2) #10-32 locking nuts used to secure the DE90-3000 Front Panel (Faceplate).
• Eight (8) #8-18 x 1/2" mounting screws used to secure the inner metal panel.
• Two (2) #8 speed clips used to secure the inner metal panel and replace any damaged or
missing.
Installation
Disconnect (turn off) the power supply to the Strand DE90 dimmer rack(s).
WARNING! Verify all power is disconnected (turned off) before proceeding.
Removal of the Old Processor Module and Backplane
• Open the DE90 dimmer rack door, lift it off the hinges and carefully set it aside.
• Remove the inner metal panel. There are eight (8) #8-18 x 1/2" mounting screws (four (4) on
each side) that need to be removed. Once the screws are removed, carefully pull the metal
panel out and set it aside. Replacement mounting screws are provided to secure the panel
once the retrot is complete.
• If you are not familiar with the Strand DE90 dimmer rack processor electronics and wiring, it is
strongly advised that you take a few minutes to inspect the low voltage eld wiring connected
to analog inputs on top of the Processor Module (if applicable) and the connections on the
backplane. Some of this eld wiring may be reused to connect to the DE90-3000 retrot. Refer
to the Control Input/Output Connections (page 15) section of this manual for details.
• All of the internal OEM (Original Equipment Manufacturer) wiring must remain intact to complete
the retrot. Compare these connections to the ones on the DE90-3000 backplane. Do not
disconnect any wiring until you are completely satised with how easy this is going to be.
NOTE: Never pull directly on the wires to remove connectors.