14
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U p l o a d m o d e (
UPLd
)
Upload mode prepares the MAC 600/E to receive control software. It is normally engaged automatically by the upload device. In
certain circumstances, however, you may have to set upload mode manually as described under “Updating software” on page 19.
s e c t i o n 5
MAINTENANCE AND BASIC SERVICE OPERATIONS
The MAC 600/E requires regular maintenance to keep performing at its optimum. The maintenance schedule will be dependent upon
the operating environment. Dirty lenses and filters reduce the light’s brightness. Cooling fans covered by dust may cause overheating,
thus causing the thermostat to cut out the lamp intermittently. This section takes you through the general maintenance procedures and
describes some basic service operations.
W A R N I N G !
All service procedures that require removing covers shall be performed by a
qualified technician.
Disconnect from AC power before removing any cover or part.
Removing the printed circuit board
1.
Disconnect the fixture from AC power.
2.
Remove the flat plate from the top of the front side of the base. Do not remove the curved side plates.
3.
Unplug the white plastic wire connectors from the top of the printed circuit board. To unplug a connector, hold the
plastic connector - never pull the wires - and pull it straight off the pins.
4.
Grasp the black pins on either end of the circuit board and gently pull it out. You may have to guide some wires past
the motor housing. Be careful not to knock the copper heat sinks.
Replacing the printed circuit board
1.
Gently put the circuit board back into the base. You may have to guide some wires
past
the motor housing. Push the black pins down to lock the board in place.
2.
Reconnect the wire connectors. Each connector (except for the 2 fan connectors and
the
control module connector)
is labelled. Fit the female over the male with the “rails” on
the
female connector over the “tongue” on the male connector. Your MAC 600/E may or
may
not have unused
connectors PL301 and PL302. Starting from the end with the copper heat sinks, the connection order is:
3.
Replace the top cover.
Replacing fuses
The main fuse is located above the XLR output and is replaced by unscrewing the holder with a screwdriver or small coin. The
secondary fuses are located on the printed circuit board and are replaced as follows.
1.
Remove the printed circuit board as described above.
2.
Locate and replace the defective fuse with one of the same rating. The fuses are shown on the PCB layout diagram
on page 24 as F601, F602, and F603. Their values are listed on page 25.
3.
Replace the printed circuit board.