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Electronic Theatre Controls Inc

Sensor CEM Test Switch

Caution-Icon.png Sensor processors of any generation should never be removed  from a live rack and sensor racks should never be powered without a processor installed. Always de-energize the rack from its main breaker when adjusting the position of the test switch

Test Switch Information

Why are all of my lights stuck on at my Sensor rack and the screen (if the processor is a version with a screen) is blank?

Every generation of Sensor has a test switch located on the CEM processor's circuit board. Activating the test switch will bypass all controls of the rack and place 5v on control lines to every dimmer module in the rack.  This should turn every circuit to full and you must flip it back off to resume control. Use the table below to determine the location of your test switch.

What does the test switch in a Sensor rack do?

Activating the test switch will bypass all controls of the rack and place 5 VDC on control lines to every dimmer module in the rack. This should turn every circuit to full. Use the table below to determine the location of your test switch.

Where do I find the test switch on my CEM?

The location varies depending on what generation of processor you have. Use the table below to determine the location of your test switch.

Switch Location By Model

 

 

 

MPE

clipboard_e7bc54b7af044191ae4b44dc0e30c2279.png

MPE.jpgIt is a red switch on the circuit board in the front right hand corner, labeled S2.

 

 

 

 

CEM Classic

clipboard_e7ed515f8bae66d99ec676482f2e86262.pngCEM Classic.jpg

It is the red switch on the circuit board just behind the Keypad of the front panel, labeled S1.

 

 

 

 

CEM+ (With Green Control Card)

clipboard_e8f2ca2ba3b231966ad8cf60303856caa.pngCEM+ Green.jpg

It is a red switch on the circuit board halfway up the right side, labeled S2

 

 

 

 

CEM+ (With Blue Control Card)

clipboard_e6bb23d95a6003865d671347775d718e4.pngCEM+ Blue.jpg

It is a silver switch on the circuit board halfway up the right side, labeled S2.

 

 

 

 

CEM3 (without Heatsink)

clipboard_e1cc85238203f1432c3e8f3b89fc03c92.pngCEM3.jpg

It is a silver switch on the circuit board in the front right hand corner, labeled S2

 

 

 

CEM3 (with Heatsink)

clipboard_e45d35414f2fc694842e83862e238f9a0.pngcem3 with heatsink test switch.jpg

It is a silver switch on the circuit board in the front right hand corner, labeled S3

 

 

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