Martin MiniMAC Maestro Manual do Utilizador descarregar pdf (Página 75)

Troubleshooting 75

Troubleshooting

Problem Probable cause(s) Remedy

One or more of the

fixtures is completely

dead.

Fixture not powered on. Check that power is switched on and

cables are plugged in.

Primary fuse blown

(located besides the

ballast).

Disconnect fixture and replace fuse.

Secondary fuse(s) blown

(located on PCB inside

the fixture base).

Disconnect fixture. Check fuses on

PCB and replace.

Fixtures reset

correctly but all

respond erratically or

not at all to the

controller.

The controller is

disconnected from the

data link.

Connect controller.

XLR pin-out of the

controller does not match

pin-out of the first fixture

on the link (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.

Bad data link connection Inspect connections and cables.

Correct poor connections. Repair or

replace damaged cables.

Data link not terminated

with 120Ω termination

plug.

Insert termination plug in output jack

of the last fixture on the link.

Incorrect addressing of

the fixtures.

Check fixture address and protocol

settings.

One of the fixtures is

defective and disturbs

data transmission on the

link.

Bypass one fixture at a time until

normal operation is regained. Have

the defective fixture serviced by a

qualified technician.

XLR pin-out on fixtures

does not match (pins 2

and 3 reversed).

Install a phase-reversing cable

between the fixtures.

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Martin MiniMAC Maestro Manual do Utilizador Página 75

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