All troubleshooting procedures should begin with an LED and cable connection check. DMX cables are often the cause of scroller problems.
Symptom: |
Possible Cause: |
Solution: |
| MXR fails to start and home. |
Power from power supply. |
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Verify that the power supply is on.
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Verify that XLR pinout is compatible.
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Verify 4 pin cable is good.
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| MXR fails to respond to DMX. |
DMX control signal not connected. |
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Verify that DMX is present from console to power supply.
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Verify 4 pin cable is good.
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| MXR display window flashes. |
DMX control signal not connected. |
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Verify that DMX is present from console to power supply.
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| MXR operates irratically. |
Faulty DMX. |
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Verify that 4 pin cable runs from last MXR back to power supply.
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Verify that DMX terminator is being used on the last DMX device in the control circuit.
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| MXR resets intermittently. |
Insufficient power. |
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Check that limits per power supply or per cable has not been exceeded.
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| MXR resets intermittently. |
Reset channel programmed. |
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Check to see if DMX informatiion might have been programmed accidently for the DMX reset channel.
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| Gel string will not travel completely. |
Worn gel string. |
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Check to see if gel strings are old to the end of header or tail and heat damaged. Replace.
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| Color is inconsistent with other. |
Reset required. |
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Reset from console, power supply MXRs or MXR.
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