MBT Lighting SC4PKG - Manual (Page 3)

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6. Troubleshooting
Following are a few common problems that may occur and suggestions as to how to solve
them.
A. No light
1. Check the power on LED and fuse
2. Check the lamp if it is ok? (The lamp may turn off, when the unit is in blackout).
B. Not responding to DMX
1. Check red LED is on, if not, check DMX connectors, cables and linking correctly.
2. If the red LED is on and no response to the channel, check the dipswitch settings and
DMX polarity.
3. If you have intermittent DMX signal problems, check the pins on connectors or on PCB
of the unit or the previous one.
4. Try to use another DMX controller.
5. Check if the DMX cables run near or run alongside to high voltage cables that may
caused damage or interference to DMX interface circuit.
C. Some units don ’t respond to the controller
You may have a break in the DMX cabling. The unit receiving no DMX signal will begin
its own light show. Check the red LED for the response of the DMX signal.
D. No response to the sound
1. Check the unit that is not receiving DMX signal (red LED should be off)
2. Check the unit that is not set to display mode
3. Check microphone to see if it is good by tapping the microphone
INDEX
1. General Instructions
2. Main Features
3. Lamp
4. DMX Linking & Controls
5. How To Control The Unit
A. By master/slave preprogrammed function
B. By easy controller
C. By Colormix controller
D. By universal DMX controller
6. Troubleshooting
7. Fixture Cleaning