SHOWTEC Light Desk Pro 136 Betriebsanweisung PDF herunterladen (Seite 21)

No Response to DMX

Response: Suspect the DMX cable or connectors, a controller malfunction, a light effect DMX card

malfunction.

1. Check the DMX setting. Make sure that DMX addresses are correct.

2. Check the DMX cable: Unplug the unit; change the DMX cable; then reconnect to electrical power.

Try your DMX control again.

3. Determine whether the controller or light effect is at fault. Does the controller operate properly with

other DMX products? If not, take the controller in for repair. If so, take the DMX cable and the light

effect to a qualified technician.

See the table below for more problem solving.

Problem

Probable cause(s)

Remedy

One or more

fixtures are

completely dead.

No power to the fixture

• Check that power is switched on

and cables are plugged in.

Fixtures reset

correctly, but all

respond

erratically or not

at all to the

controller.

The controller is not connected.

• Connect controller.

3-pin XLR Out of the controller

does not match XLR Out of the first

fixture on the link (i.e. signal is

reversed).

• Install a phase reversing cable

between the controller and the first

fixture on the link.

Fixtures reset

correctly, but

some respond

erratically or not

at all to the

controller.

Poor data quality

• Check data quality. If much lower

than 100 percent, the problem may

be a bad data link connection, poor

quality or broken cables, missing

termination plug, or a defective

fixture disturbing the link.

Bad data link connection

• Inspect connections and cables.

Correct poor connections. Repair or

replace damaged cables.

Data link not terminated with 120

Ohm termination plug.

• Insert termination plug in output jack

of the last fixture on the link.

Incorrect addressing of the fixtures.

• Check address setting.

One of the fixtures is defective and

disturbs data transmission on the

link.

• Bypass one fixture at a time until

normal operation is regained: unplug

both connectors and connect them

directly together.

• Have the defective fixture serviced

by a qualified technician.

3-pin XLR Out on the fixtures does

not match (pins 2 and 3 reversed).

• Install a phase-reversing cable

between the fixtures or swap pin 2

and 3 in the fixture, that behaves

erratically.

No light

Fixture is too hot.

• Allow fixture to cool.

• Clean fan.

• Make sure air vents at control panel

and front lens are not blocked.

• Turn up the air conditioning.

LEDs damaged

• Disconnect fixture and return to your

dealer.

The power supply settings do not

match local AC voltage and

frequency.

• Disconnect fixture. Check settings

and correct if necessary.

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