Martin MAC 250 Wash User manual

MAC 250 Wash
user manual
TM

Dimensions
All measurements are expressed in millimeters
©2005-2010 Martin Professional A/S. Information subject to change without notice. Martin Professional A/S and all affiliated
companies disclaim liability for any injury, damage, direct or indirect loss, consequential or economic loss or any other loss
occasioned by the use of, inability to use or reliance on the information contained in this manual. The Martin logo, the Martin name
and all other trademarks in this document pertaining to services or products by Martin Professional A/S or its affiliates and
subsidiaries are trademarks owned or licensed by Martin Professional A/S or its affiliates or subsidiaries.
P/N 35000164 Rev. F
393
538
469
364
119
315
270°270°
560
270°
128.5° 128.5°
Min. c/c 410
Min. c/c 410
375

Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
AC power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting the DMX data link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Menu navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DMX Address selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
16-bit and 16-bit Extended DMX Mode selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Tailoring performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Information readouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Test and service utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Lamp power and reset shortcuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LED signal readouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
DMX control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
DMX operating modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lamp power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Effect position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Speed control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Optics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Color filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Installing the wide-angle lens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Cleaning guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Lamp replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cleaning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Replacing fuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Updating software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
MAC 250 Beam Upgrade Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
DMX protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Control menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Adjustment submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Control panel shortcuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Error messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Circuit board connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
MAC 250 Wash™ Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Appendix: MAC 250 Beam. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Disposing of this product
Martin™ products are supplied in compliance with Directive 2002/96/EC of the European
Parliament and of the Council of the European Union on WEEE (Waste Electrical and Electronic
Equipment), as amended by Directive 2003/108/EC, where applicable.
Help preserve the environment! Ensure that this product is recycled at the end of its life. Your
supplier can give details of local arrangements for the disposal of Martin products.

Introduction 5
Introduction
Thank you for selecting the Martin™ MAC 250 Wash™, a moving head wash light with a range of
color-changing and control options and a 250 watt long-life discharge lamp. The MAC 250 Wash features a
newly-designed glass reflector that gives extremely high light output.
Features
The MAC 250 Wash features:
• efficient, 3000 hour, 250 watt discharge lamp
• full CMY color mixing
• color wheel with six removable dichroic color filters including CTC, plus open position
• combined dimmer/shutter with full-range dimming and variable speed pulse and strobe effects
• Fresnel lens plus optional wide-angle lens
• 540° of pan and 257° of tilt
• user-installable firmware
• switchable power supply setting
• tilt locks for easier transport and service
• temperature-regulated cooling fans for quieter operation
For the latest firmware updates, documentation, and other information about this and all Martin Professional
products, please visit the Martin website at http://www.martin.com
Comments or suggestions regarding this document may be e-mailed to [email protected] or posted to:
Technical Documentation
Martin Professional A/S
Olof Palmes Allé 18
DK-8200 Aarhus N
Denmark
Warning! Read the safety precautions in this manual before installing and operating the fixture.
Safety information
Warning! This product is for professional use only. It is not for household or residential use.
This product presents risks of lethal or severe injury due to fire and heat, electric shock, ultraviolet radiation,
lamp explosion, and falls.
Read this manual before installing, powering or servicing the fixture, follow the safety precautions listed
below and observe all warnings in this manual and printed on the fixture. If you have questions about how to
operate the fixture safely, please contact your Martin supplier or call the Martin 24-hour service hotline on
[phone], or in the USA on 1-888-tech-180.
PROTECTION FROM ELECTRIC SHOCK
Warning! Always disconnect from mains supply before replacing the lamp.
• Disconnect the fixture from AC power before removing or installing the lamp, fuses, or any part, and when
not in use.
• Always ground (earth) the fixture electrically.

6 MAC 250 Wash
• Use only a source of AC power that complies with local building and electrical codes and has both
overload and ground-fault (earth-fault) protection.
• Check that power supply settings match the local AC power before use.
• Before using the fixture, check that all power distribution equipment and cables are in perfect condition
and rated for the current requirements of all connected devices.
• Isolate the fixture from power immediately if the power cable or power plug are in any way damaged,
defective or wet, or if they show signs of overheating.
• Do not expose the fixture to rain or moisture.
• Refer any service operation not described in this manual to a qualified technician.
LAMP SAFETY
• Prolonged exposure to an unshielded discharge lamp can cause eye and skin burns. Do not stare directly
into the light output. Never look at an exposed lamp while it is lit.
• Do not operate the fixture with missing or damaged covers, shields, lenses or ultraviolet screens.
• A hot discharge lamp is under pressure and can explode without warning. Allow the fixture to cool for at
least 45 minutes and protect yourself with safety glasses and gloves before handling a lamp or servicing
the fixture internals.
• Replace the lamp immediately if it becomes visually deformed, damaged or in any way defective.
• Monitor hours of lamp use and lamp intensity and replace the lamp when it reaches the limit of its service
life as specified in this manual or by the lamp manufacturer.
• Install only an approved lamp.
• If the quartz envelope of a discharge lamp is broken, the lamp releases a small quantity of mercury and
other toxic gases. If a discharge lamp explodes in a confined area, evacuate the area and ventilate it
thoroughly. Wear nitrite gloves when handling a broken discharge lamp. Treat broken or used discharge
lamps as hazardous waste and send to a specialist for disposal.
PROTECTION FROM BURNS AND FIRE
Danger! Intense heat. Avoid contact by persons and materials.
The exterior of the fixture can get very hot – up to 160° C (320° F). Allow the fixture to cool
for at least 45 minutes before handling.
Prolonged exposure to an unshielded lamp can cause eye and skin burns.
• Never attempt to bypass the thermostatic switch or fuses. Always replace defective fuses with ones of the
specified type and rating.
• Keep all combustible materials (for example fabric, wood, paper) at least 0.1 meter (4 inches) away from
the fixture. Keep flammable materials well away from the fixture.
• Do not illuminate surfaces within 0.5 meters (20 inches) of the fixture.
• Provide a minimum clearance of 0.1 meters (4 inches) around fans and air vents.
• Do not modify the fixture in any way not described in this manual or install other than genuine Martin
parts. Do not stick filters, masks or other materials onto any lens or other optical component. Use only
Martin-approved accessories to mask or modify the light beam.
• Do not operate the fixture if the ambient temperature (Ta) exceeds 40° C (104° F).
PROTECTION FROM INJURY
• Do not lift or carry the fixture alone.
• Use two evenly spaced clamps to suspend the fixture from rigging structures. Do not use only one clamp.
• When suspending the fixture, ensure that the supporting structure and all hardware used can hold at least
10 times the weight of all devices suspended from them.
• Do not use the handles in the base or the handles on the top of the yoke for hoisting or secondary
attachment.
• Install as described in this manual a secondary attachment such as a safety cable that is approved by an
official body such as TÜV as a safety attachment for the weight of all the fixtures it secures. The safety

Introduction 7
cable must comply with EN 60598-2-17 Section 17.6.6 and be capable of bearing a static suspended load
ten times the weight of the fixture.
• Check that all external covers and rigging hardware are securely fastened.
• Block access below the work area and work from a stable platform whenever installing, servicing or
moving the fixture.

8 MAC 250 Wash
Setup
Unpacking
The MAC 250 Wash is supplied with:
• MSD 250/2 lamp (factory installed)
• 3-meter, 3-wire IEC power cable
• Wide-angle lens
• This user manual
• Two 1/4-turn T-brackets for mounting a clamp
• 5-meter, 3-pin shielded XLR control cable
The packing material or flightcase is carefully designed to protect
the fixture during shipment - always use it to transport the fixture.
When installing the MAC 250 Wash, you may find it useful to lock
the head in place using the tilt lock (see illustration).
For instructions on installing the wide-angle lens, see “Installing the
wide-angle lens” on page 21.
AC power
Warning! For protection from electric shock, the fixture must be grounded (earthed). The power
supply must have both overload and ground-fault (earth-fault) protection.
Important! Check that power supply settings match the local AC power before use. The MAC 250 Wash
is factory configured for 230 V / 50 Hz operation. If your AC power is different, the fixture
must be configured for the local voltage and frequency. Always use the settings that are
closest to your AC power. If no setting matches your local AC power exactly, select the
next highest setting.
Figure 1: Tilt lock

Setup 9
CONFIGURING FOR LOCAL AC POWER
1. Disconnect the fixture from power and allow to cool for at least 20 minutes.
2. Remove the 2 Phillips screws in the access cover directly behind the power and data connectors (see
Figure 2). Lift off the cover.
3. Locate the selection switches.
4. Move the voltage switch to the setting that most closely matches the local AC voltage. If your voltage
falls between 2 settings, select the higher voltage. For example, if your AC voltage is 220 V, use the 230
V setting instead of 210 V.
5. Move the frequency switch to the setting that matches the local AC frequency: 50 or 60 Hz.
6. Replace the cover.
The main fuse is suitable for all AC power voltages and frequencies accepted by the fixture and does not
need to be replaced when the fixture’s settings are changed.
INSTALLING A PLUG ON THE POWER CABLE
The power cable must be fitted with a grounding-type cord cap (mains plug) that fits your power distribution
system. Consult an electrician if you have any doubts about proper installation.
Following the cord cap manufacturer’s instructions, connect the yellow and green wire to ground (earth), the
brown wire to live, and the blue wire to neutral. The table below shows some pin identification schemes.
APPLYING POWER
Warning! All power cables must be undamaged and rated for the electrical requirements of all
connected devices.
Important! Do not connect the MAC 250 Wash to a dimmer system, as this can damage the fixture.
1. Check that the power supply cable is undamaged and rated for the current requirements of all
connected devices.
Wire Pin Marking Screw color
brown live “L” yellow or brass
blue neutral “N” silver
yellow/green ground green
Table 1: Plug wiring
50
60
120
100
210
230
250
Figure 2: Power supply settings
Voltage
Frequency

10 MAC 250 Wash
2. Plug the prepared power cable into the AC input socket and a grounded (earthed) AC power outlet.
Installation
LOCATION AND ORIENTATION
The MAC 250 Wash may be installed in any orientation. It can be fastened directly to a suitable surface,
hung with a rigging clamp, or placed directly on a level surface.
For safe operation, install the MAC 250 Wash in a location where:
• there are no flammable materials nearby
• the fixture is at least 0.1 meters (4 inches) away from combustible materials
• there is at least 0.1 meters (4 inches) clearance around the fan and control panel.
• all surfaces to be illuminated are at least 0.5 meters (20 inches) away.
• the fixture is protected from rain and moisture
RIGGING OR MOUNTING THE MAC 250 WASH
Warning! Block access below the work area before proceeding.
The MAC 250 Wash can be placed on stage or clamped to a truss in any orientation. The Fast-Lock system
enables quick and easy fastening of the clamp brackets in 4 positions.
The MAC 250 Wash is supplied with two T-brackets to which 1 or 2 rigging clamps (not included) can be
bolted. The T-brackets fasten to the base with 1/4-turn fasteners as shown in Figure 3.
Warning! Attach an approved safety cable to the attachment point provided in the base. Never use
the carrying handles for secondary attachment.
The 1/4-turn fasteners are locked only when turned fully clockwise.
1. Check that the clamps are in perfect condition and can bear at least 10 times the weight of the fixture.
Bolt clamps to the bracket with a grade 8.8 (minimum) M12 bolt and lock nut, or as recommended by the
clamp manufacturer, through the 13 mm holes in the T-bracket.
2. Align the T-bracket with any 2 key slots on the base. Insert both locking pins into the slots and turn both
levers on the quarter-turn fasteners a full 1/4 turn clockwise to lock.
3. Check that the structure can bear at least 10 times the weight of all installed fixtures, clamps, cables,
auxiliary equipment, etc.
4. Working from a stable platform, clamp the fixture to the structure.
Figure 3: Clamp mounting bracket

Setup 11
5. Install a safety cable that can bear at least 10 times the weight of the fixture securely to the structure and
anchor the cable to the dedicated attachment point on the base. The attachment point is designed to fit
a carabiner clamp.
6. Check that there are no combustible materials or surfaces to be illuminated within 0.1 meter (4 inches)
of the fixture, and that there are no flammable materials nearby.
7. Check that there is no possibility of heads or yokes colliding with other fixtures.
Connecting the DMX data link
The MAC 250 Wash has locking 3-pin and 5-pin XLR data input and output sockets that are wired for use
with standard DMX devices with pin 1 to shield, pin 2 to cold (-) and pin 3 to hot (+).
Important! Never connect more than 1 data input and 1 data output to the fixture.
1. Connect the controller’s output to the fixture’s data input.
2. Connect the output of the fixture closest to the
controller to the input of the next fixture. If
connecting a fixture with pin 3 hot to a fixture with
reversed polarity (pin 3 cold), use a phase-reversing
adaptor.
3. To terminate the link, insert a male 120 ohm XLR
termination plug in the output of the last fixture.
TIPS FOR BUILDING A DMX LINK
• Use shielded twisted-pair cable designed for RS-485
devices: standard microphone cable cannot transmit
DMX data reliably over long runs. For links up to 300
meters (1000 ft.) long, you can use 24 AWG, low capacitance, 85-150 ohm characteristic impedance,
shielded cable with 1 or more twisted pairs. For runs up to 500 meters (1640 ft.), use 22 AWG cable. Use
an amplifier if the DMX link exceeds 500 meters.
• Fixtures must be connected in a single line. Never use a “Y” connector to split the link. To split the DMX
link into branches, use a splitter such as the Martin 4-Channel Opto-Isolated RS-485 Splitter/Amplifier.
• Do not overload the link. Up to 32 devices may be connected on a DMX link.
• Terminate the link by installing a termination plug in the output socket of the last fixture on the link. The
termination plug is a male XLR connector with a 120 ohm, 0.25 watt resistor soldered between pins 2 and
3. This “soaks up” the control signal so it does not reflect back down the link and cause interference. If a
splitter is used, terminate each branch of the link.
Figure 4: Safety cable attachment point
phase-reversing
adaptor
Male Female
1
2
3
1
2
3
3-pin to 3-pin
P/N 11820006
Male XLR
1
2
3
Male
P/N 91613017
120 Ω
termination plug

12 MAC 250 Wash
Control panel
You can set the MAC 250 Wash’s DMX address, configure individual fixture settings (personality), read out
data, and execute service utilities from the MAC 250 Wash’s control panel. Settings can also be changed
remotely via the DMX link with the Martin MP-2 uploader.
See also the control menu overview starting on page 29.
Menu navigation
The DMX address and any error messages are displayed after the fixture resets. To enter the menu, press
[Menu]. Use the [Up] and [Down] keys to move within the menu. To select a function or submenu, press
[Enter]. To escape a function or menu, press [Menu].
DMX Address selection
For independent control, each fixture must be assigned its own unique address and control channels. Two
fixtures can share the same address if they are to respond identically: they will receive the same
instructions and individual control will not be possible.
Two fixtures can be set up so that one pans as a mirror image of the other. To achieve this, assign the same
DMX address to both fixtures, but use the settings in the control menu to invert the pan on one fixture (see
“Movement” below).
SETTING THE DMX ADDRESS
1. Apply power to the MAC 250 Wash. Press [Menu] to enter the main menu.
2. Select  using the [Up] and [Down] keys. Press [Enter].
3. Select an address (start channel) from 1 to 500 (for 16-bit mode) or 1 to 494 (for 16-bit Extended mode)
using the [Up] and [Down] keys. Press [Enter]. Press [Menu] to return to the main menu.
16-bit and 16-bit Extended DMX Mode selection
The MAC 250 Wash has two DMX operating modes, 16-bit and 16-bit Extended. 16-bit mode uses 13 DMX
channels and 16-bit Extended mode uses 19 DMX channels. 16-bit Extended mode provides more precise
control of the dimmer, CMY color mixing, color filter, and frost effects. The MAC 250 Wash is supplied in
16-bit mode by default. DMX mode is changed using the  option in the fixture control menu (see
“Control menu” on page 29).
SETTING THE DMX MODE
1. Apply power to the MAC 250 Wash. Press [Menu] to enter the main menu.
2. Select  using the [Up] and [Down] keys. Press [Enter].
3. Select  for standard 16-bit mode, or  for 16-bit Extended mode. Press [Enter].
4. Press [Menu] to return to the main menu.
Tailoring performance
MOVEMENT
The MAC 250 Wash provides various options for optimizing movement to suit different applications.

Control panel 13
•, the pan and tilt invert menu, allows you to swap the pan and tilt channels (→), invert
pan movement (→), and invert tilt movement (→). These options can be useful in
situations where you want some fixtures to mirror the performance of others with the same DMX address,
or when fixtures are not oriented as programmed.
•, the pan/tilt speed menu, provides 2 settings:  and  (normal). The  setting
provides maximum speed on controllers with high DMX output refresh rates (e.g. a recent PC and Martin
LightJockey software). The  setting gives smoother, more precise movement with less powerful
DMX controllers as well as the option of longer fade times, for theater use for example. Pan/tilt speed is
set to  by default.
•, the effects speed menu, provides 3 settings: ,  and  (Pan Tilt Speed Slave).
The  and  settinsg are similar to  (see above). If set to , effects speed copies
the pan/tilt speed setting. This lets you set effects speed and pan/tilt speed with one instruction from your
DMX controller.
• In the  (personality) menu,  determines whether the color and gobo wheels scroll past open
when changing positions. When set to , the wheels can “take a shortcut” and scroll through open when
this is the shortest path to the next position. The wheels do not scroll past open when  is set to
.
DISPLAY
The display menu (→) determines whether the display remains lit or not. Select  to have
the display remain permanently lit, Select  or  to extinguish the display two minutes or ten
minutes after the last key press.
To turn the display upside-down for easier reading, press [Up] and [Down] simultaneously.
The display intensity setting (→) controls display brightness. You can select  for
automatic dimming of the display using the built-in light sensor, or manually select an intensity level from 10
to 100.
LAMP POWER
There are two settings that modify lamp control: Automatic Lamp On (→) and DMX Lamp-Off
(→).
There are three options for automatic lamp control: , , and . When  is , the lamp
remains off until a lamp-on command is received from the controller. When  is , the lamp strikes
automatically after the fixture is powered on. When  is set to , the lamp strikes automatically
when the fixture receives DMX data, and it douses automatically after 15 minutes without receiving DMX
data. When ALON is set to either ON or DMX, lamp strike timing is determined by the fixture address to
prevent all lamps from striking at once.
The DMX lamp-off setting affects how the lamp can be doused. When  is , lamp power can be
switched off by sending a DMX value from 248 to 255 on channel 1 for five seconds. When  is ,
the lamp-off command will not work unless special conditions are met (see the DMX protocol on page 27 for
more details).
RESET
The fixture can be reset instantly from the controller if DMX reset (→) is set to . The reset
value must be held for 5 seconds to reset if DMX reset is set to . If DMX reset is , resetting the
fixture via DMX will not work unless special conditions are met. Refer to the DMX protocol.
DIMMER CURVE
In →, the dimmer can be set up to either open and close in a linear manner () or
emulate the characteristics of a tungsten incandescent bulb ().
STUDIO MODE
If → is set to , pan, tilt and effects movement speed is set to  (normal) and fans are
set to  (temperature regulated operation) to give the quietest possible operation. Any existing speed

14 MAC 250 Wash
settings are overridden. The message  scrolls in the display if you try to
change speed settings via the  or  control options.
CMY BLACKOUT
• (CMY blackout) in the  menu makes the shutter blackout more effective. When set to ,
the CMY flags are activated 3 seconds after the shutter is closed. This absorbs any light output that
escapes past the shutter. The CMY flags open automatically when the shutter is opened. Since this takes
a fraction of a second longer, set  to  for fastest snap open from blackout.
DEFAULT AND CUSTOM SETTINGS
The fixture can be reset to its factory default settings by selecting →→
Up to 3 custom settings can be saved and recalled. For example, to save custom setting 1, configure the
fixture as desired, then select →→. To recall this setting, select
→→.
Information readouts
POWER-ON HOURS
This readout can be used to track maintenance intervals. Read the total number of hours the fixture has
been on since fabrication in →→→, pressing [Enter] to display. Read the number
of hours since the counter was last reset in →→→. Press [Enter] to display, and
press [Up] for 5 seconds while displayed to reset.
LAMP HOURS
Read the total number of lamp hours since fabrication in →→→, and the number
of lamp hours since the counter was last reset in →→→ . Reset this counter after
installing a new lamp. Press [Up] for 5 seconds while displayed to reset.
LAMP STRIKES
Read the total number of lamp strikes in →→→, and the number of lamp strikes
since the counter was last reset in →→→. Reset this counter when installing a
new lamp. Press [Up] for 5 seconds while displayed to reset.
TEMPERATURE READOUTS
The temperature of the head can be read via →→ and the temperature of the base unit
can be read via →→. Temperatures are in degrees Celsius.
FIRMWARE VERSION
→ displays the firmware version number. The firmware version is also displayed briefly at
startup.
Test and service utilities
DMX READOUT
The DMX log () menu provides useful information for troubleshooting control problems.
 displays the DMX refresh rate in packets per second. Values lower than 10 or higher than 44 may
result in erratic performance, especially when using tracking control.
 displays the quality of the received DMX data as a percentage of packets received. Values much
below 100 indicate interference, poor connections, or other problems with the DMX data link that are the
most common cause of control problems.

Control panel 15
 displays the DMX start code. Packets with a start code other than 0 may cause irregular
performance.
The remaining readouts under  display the DMX values received on each of the 13 channels
available in both 16-bit and 16-bit Extended modes, from  (shutter, channel 1) to  (effect
speed, channel 13). If the fixture does not behave as expected, reading the DMX values can help you
troubleshoot the problem.
MANUAL CONTROL
The manual control menu () provides commands for resetting the fixture (), as well as striking the
lamp (), and dousing the lamp (). It also permits you to position and move individual effects.
EFFECTS TEST
The test sequence (→) runs through all effects to provide a quick check of fixture performance.
Press [Menu] to stop the test.
FEEDBACK TOGGLE
Note that [Enter] must be pressed for 3 seconds to access settings in the  menu.
Sensors monitor the positions of the pan/tilt systems and color wheel. If they detect an error, the effect
resets on the fly. The shutter closes during resetting.
To ease service, for example, this feature can be disabled for pan/tilt by turning pan/tilt feedback off
(→→). The disabled pan/tilt feedback setting is saved when you exit the →
menu.
Color wheel feedback can also be turned off (→→). This setting is also saved when you
exit the → menu.
ADJUSTMENT POSITIONS
The adjustment menu (→) provides commands for positioning the head and effects, as well as
an effects position test sequence, during service and mechanical adjustment (see “Adjustment submenu”
on page 32).
If the test sequence is run by selecting →→→ and an error is detected, the test
aborts and a number flashes in the display to indicate which effect is out of position. Note this number and
contact your Martin service center for advice.
EFFECT CALIBRATION
With the calibration menu (→), effect positions can be fine-tuned with a software-defined offset
value to compensate for small misalignments or differences between fixtures.
The default offset command (→) erases any offsets stored in memory.
CIRCUIT BOARD TEST
→ executes a routine designed for testing the main circuit board. This function is for service
use only.
FAN CONTROL
In →, the cooling fans can be set to run at full speed or set to thermostatically regulated
control. Running at full speed will give maximum lamp and component service life. Running at regulated
speed gives quietest operation.
UPLOAD MODE
The upload mode command (→) prepares the fixture for a software update.

16 MAC 250 Wash
Lamp power and reset shortcuts
The control panel buttons can be used to control lamp power and reset the fixture.
• To strike the lamp, press [Enter] and [Up].
• To douse the lamp, press [Enter] and [Down].
• To reset the fixture, press [Menu] and [Up].
LED signal readouts
Four LEDs next to the digital display give additional information about fixture status:
• Ready: fixture is ready for operation.
• DMX: fixture is receiving a valid DMX signal.
• Lamp: lamp is struck and lit.
• Service: fixture is in service mode (for service use only).

DMX control 17
DMX control
The MAC 250 Wash is compatible with USITT DMX 512 controllers and can be added to a standard DMX
data link.
This section briefly describes the DMX-controllable effects. See “DMX protocol” on page 27 for an overview
of DMX control options.
DMX operating modes
The MAC 250 Wash has two DMX operating modes, 16-bit and 16-bit Extended. 16-bit mode uses 13 DMX
channels and 16-bit Extended mode uses 19 DMX channels. 16-bit Extended mode provides more precise
control of the dimmer, CMY mix, color filter and frost settings. All other functions are identical. The DMX
mode is selected using the  option in the fixture’s control panel (see “Control menu” on page 29).
Lamp power
LAMP-ON
Unless automatic lamp strike is enabled, lamp power remains off until a lamp-on command is sent from the
controller.
Note: A peak of electric current that can be many times the operating current is drawn for an instant when
striking a discharge lamp. Striking many lamps at once may cause a voltage drop large enough to prevent
lamps from striking or draw enough current to trip circuit breakers. If sending lamp-on commands to multiple
fixtures, program a sequence that strikes lamps one at a time at 5 second intervals.
LAMP-OFF
The lamp can be doused from the controller by sending the lamp-off command on channel 1 for 5 seconds.
Important! Once a lamp is doused, it cannot be restruck until it has cooled. This typically takes
around 8 minutes.
Note that the lamp-off command may be disabled using the DMX Lamp-Off personality setting
(→) in the fixture’s control panel.
Effect position
RESET
If an effect loses its indexing and fails to move to programmed positions, the fixture can be reset from the
controller by sending the “Reset” command on channel 1. Note that you can require a DMX reset command
to be sent for 5 seconds before it is executed, or you can disable the DMX reset feature, using the.DMX
Reset personality setting (→) in the fixture’s control panel.
DIMMER / SHUTTER
The mechanical dimmer/shutter system provides full high-resolution dimming, “instant” open and blackout,
random and variable strobe effects, and random and variable pulses in which the dimmer snaps open and
slowly dims or snaps closed and slowly opens. Shutter, strobe, and pulse effects are selected on channel 1.
The intensity level is selected on channel 2. 16-bit Extended mode provides fine tuning of the intensity level
on channel 3.

18 MAC 250 Wash
COLOR
The color wheel can be scrolled continuously – allowing for split color effects – or in steps, and rotated
randomly or continuously in both directions at different speeds. In 16-bit Extended mode, the color setting
selected on channel 10 can be fine-tuned on channel 11.
PAN AND TILT
Head pan and tilt are controlled on channels:
• 8 - 11 in 16-bit mode
• 14 - 17 in 16-bit Extended mode
The main pan and tilt control channels set the first 8 bits (the most significant byte or MSB), and the fine
channels set the second 8 bits (the least significant byte or LSB) of the 16-bit control byte. In other words,
the fine channels fine-tune the positions set by the main channels.
Speed control
Speed of pan, tilt and effects is controlled on channels:
• 12 and 13 in 16-bit mode
• 18 and 19 in 16-bit Extended mode
TRACKING CONTROL
Tracking control for pan/tilt and the various effects is enabled by setting the speed channels to 0.
With tracking control, the speed at which effects fade from one scene or position to the next (cross-fade
speed) is determined by the controller. The controller divides the move into steps and updates the fixture
with small changes at the rate required to achieve the fade. The fixture “tracks” the changes and averages
them with a digital filter algorithm to provide smooth movement.
VECTOR CONTROL
Alternatively, with vector control, effects movement speed is determined by the values selected on the
speed channels. This makes it possible to modify the speed of cross-fades when using a controller that
does not offer cross-fade speed control. Vector control also provides smoother movement, particularly at
slow speeds, with controllers that send slow or irregular tracking updates.
When using vector control, the cross-fade time on the controller must be set to 0.
BLACKOUT
When “blackout while moving” is selected on the speed channels, the shutter closes when the effect moves
to make the transition invisible. The shutter opens when the movement is complete.
PERSONALITY OVERRIDES
The following channels provide tracking values that allow you to override the pan/tilt speed personality
setting ( in the control menu)
• 12 in 16-bit mode
• 18 in 16-bit Extended mode
The following channels provide tracking values that allow you to override the shortcuts setting
(→ in the control menu).
• 13 in 16-bit mode
• 19 in 16-bit Extended mode

Optics 19
Optics
Color filters
STANDARD CONFIGURATION
The MAC 250 Wash provides 6 dichroic color filters as shown below.
REPLACING A COLOR FILTER
Danger! Intense heat. Avoid contact by persons and materials. The exterior of the fixture can get
very hot – up to 160° C (320° F). Disconnect the fixture from AC power and allow it to cool
for at least 45 minutes before handling.
Do not remove covers while the fixture is powered on as this exposes dangerous live
electrical circuits, hot surfaces, and a lamp under high pressure.
1. Disconnect the fixture from AC power and allow it to cool.
2. The top and bottom covers look the same, but the top cover can be identified by checking that the text
on the back of the head is oriented correctly as illustrated in Figure 6. Remove the top cover using a
flathead screwdriver to loosen the four quarter-turn screws.
1
2
34
5
6
Position Color
1CTC 5500 - 2900 K
2Pink 312
3UV
4Red 308
5Green 206
6Blue 108
Table 2: Standard colors
Figure 5: Color wheel (viewed from lamp side)
1
2
3
4
5
6
Minimum distance to flammMinimum distance to flamm
Minimum distance to illumina
Maximum ambient te
Exterior surface to
Figure 6: Identifying and removing the upper head cover

20 MAC 250 Wash
3. Put on clean lint-free gloves or use a clean lint-free cloth to avoid having to clean filters after handling.
4. Turn the color wheel to access the desired color filter. Press the filter away from the wheel slightly to
release it from the retaining lugs (A) and then lift it out of the wheel (B) – see Figure 7.
5. Color filters must be installed with the coated side facing towards the lamp as in Figure 8. To insert a
color filter, slide it under the retention spring until it locates securely behind the lugs (A) on the color
wheel. Clean the filter if necessary to ensure that it is perfectly free of oil or grease.
6. Replace the top cover before applying power.
Figure 7: Color filter replacement
A
A
B
Figure 8: Correct color filter orientation
When an object is held up to the
coated side, there is no space
between the object and its
reflection. The back edge of the
filter cannot be seen when
looking through the coated side.
When an object is held up to the
uncoated side, there is a space
between the object and its
reflection. The back edge of the
filter can be seen when looking
through the uncoated side.
Coated side towards lamp Uncoated side away from lamp