Martin MAC 250 Krypton User manual

MAC 250 Krypton
user manual

All measurements are expressed in millimeters
393
375
538
469
364
119
315
270°270°
560
270°
128.5° 128.5°
© 2001-2002 Martin Professional A/S, Denmark. All rights reserved. No part of this manual may be reproduced, in any form or by any
means, without permission in writing from Martin Professional A/S, Denmark. Printed in Denmark.
P/N 35000126 Rev. A

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
About this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
MAC 250 Krypton safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Lamp installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
AC power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Connecting the serial data link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Menu navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DMX Mode selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DMX Address selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Tailoring performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Information readouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Test and service utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
DMX-512 CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Lamp power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Effect position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Speed control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
OPTICAL CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Gobos. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Color filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Prism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Lamp replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Replacing fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Updating software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
DMX PROTOCOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
CONTROL MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
ERROR MESSAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
CIRCUIT BOARD CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
SPECIFICATIONS - MAC 250 KRYPTON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

4 MAC 250 Krypton
I NTRODUCTION
Thank you for selecting the Martin MAC 250 Krypton.
Features
Some of the many features include:
• efficient, 2000 hour, 250 watt discharge lamp
• 12 interchangeable dichroic colors
• 7 interchangeable indexed-rotation gobos
• interchangeable 3-facet rotating prism
• motorized focus
• full-range dimming
• fast blackout and strobe effects
• coated optics
• user-installable firmware
• switch-selectable power supply settings
For the latest firmware updates, documentation, and other information about this and all Martin Professional
products, please visit the Martin web site at http://www.martin.dk.
About this manual
This manual is preliminary and describes the specified functionality. Some of the described features are not
present in the initial release of the MAC 250 Krypton software. Please check the Martin web site at
http://www.martin.dk for the latest product software and documentation.
Comments or suggestions regarding this document may be e-mailed to [email protected] or posted to
Martin Professional A/S
Olof Palmes Allé 18
DK-8200 Aarhus N, Denmark
Attn: Service Department
Please review the important safety precautions in this manual before installing and operating the fixture.
MAC 250 Krypton 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 powering or installing 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 dealer or call the Martin
24-hour service hot line at [phone].
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.

Introduction 5
• Use only a source of AC power that complies with local building and electrical codes and has both overload
and ground-fault protection.
• Do not expose the fixture to rain or moisture.
• Refer any service operation not described in this manual to a qualified technician.
PROTECTION FROM UV RADIATION AND LAMP EXPLOSION
• Never operate the fixture with missing or damaged lenses and/or covers.
• When replacing the lamp, allow the fixture to cool for at least 15 minutes before opening the fixture or
removing the lamp. Protect your hands and eyes with gloves and safety glasses.
• Do not stare directly into the light. Never look at an exposed lamp while it is lit.
• Replace the lamp if it becomes defective or worn out, or before usage exceeds the maximum service life.
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 120° C (248° F). Allow the fixture to cool
for at least 45 minutes before handling.
Prolonged exposure to 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 1 meter (39 inches) away from the
fixture. Keep flammable materials well away from the fixture.
• Do not illuminate surfaces within 3 meters (10 feet) of the fixture.
• Provide a minimum clearance of 0.1 meters (4 inches) around fans and air vents.
• Never place filters or other materials over the lens.
• Do not modify the fixture or install other than genuine Martin parts.
• Do not operate the fixture if the ambient temperature (Ta) exceeds 40° C (104° F). Protection from injury
due to falls
• Do not lift or carry the fixture alone.
• When suspending the fixture, verify that the structure can hold at least 10 times the weight of all installed
devices.
• Verify that all external covers and rigging hardware are securely fastened and use an approved means of
secondary attachment such as a safety cable.
• Block access below the work area whenever installing or removing the fixture.

6 MAC 250 Krypton
S ETUP
Unpacking
The MAC 250 Krypton comes with:
• MSD 250/2 lamp (not installed)
• 3-meter, 3-wire IEC power cable
• user manual
• 1/4-turn clamp mounting bracket
• 5-meter, 3-pin shielded XLR control cable
The packing material is carefully designed to protect the fixture during shipment - always use it or a custom
flight case to transport the fixture.
Lamp installation
A lamp must be installed prior to initial operation.
COMPATIBLE LAMPS
A Philips MSD 250/2 lamp is included. The MAC 250 Krypton lamp options are shown in the table below.
Installing any other lamp may damage the fixture.
INSTALLING A LAMP
Danger! Intense heat. Avoid contact by persons and materials. The exterior of the fixture can get
very hot - up to 120° C (248° F). When replacing the lamp, disconnect the fixture from AC
power and allow it to cool for at least 45 minutes before proceeding. Wear safety goggles
to protect your eyes.
1 Locate the lamp access cover at the back of the fixture head and remove the Phillips screws.
Lamp Average life Color Temp.
Osram HSD 250/78 3000 hr 7800K
Philips MSD 250/2 2000 hr 9000K
GE CSD 250/2 2000 hr 9000K
Table 1: Lamp comparison
3
#2
mm
Figure 1: Lamp installation

Setup 7
2 Pull out the lamp socket.
3 If changing the lamp, remove the old lamp from the socket.
4 Holding the new lamp by its ceramic base (do not touch the glass), align the small pin on the lamp with the
small hole in the socket and insert the lamp squarely. Make sure that the 4 small projections on the base
contact the face of the socket.
5 Clean the glass bulb with the cloth supplied with the lamp, particularly if your fingers touched the glass. A
clean, lint-free cloth wetted with alcohol may also be used.
6 Insert the lamp into the fixture with as little twist in the lamp wires as possible.
7 Align the screw holes and fasten the lamp access plate with 2 screws.
8 If replacing the lamp, reset the lamp hour and lamp strike counters as described on page 12.
9 Strike the lamp (after setup is complete) and adjust it for optimum performance by turning the 3 adjustment
screws one at a time until the brightest part of the beam is centered.
10 Adjust the lamp position if necessary by turning the 3 lamp adjustment screws to the middle of their range
using a 3 mm Allen wrench.
AC power
Warning! For protection from electric shock, the fixture must be grounded (earthed). The power
supply shall have overload and ground-fault protection.
Important! Verify that power supply settings match the local AC supply before use.
The MAC 250 Krypton is factory configured for 230 V / 50 Hz operation. If your AC power supply is different,
the fixture must be configured for the local voltage and frequency. Always use the settings that are closest
to your AC supply.
CONFIGURING FOR LOCAL AC POWER
1 Disconnect the fixture from power.
2 Remove the 2 Phillips screws in the access cover directly behind the power and data connectors. Lift off the
cover.
3 Locate the selection switches.
50
60
120
100
210
230
250
Figure 2: Power supply settings
Voltage
Frequency

8 MAC 250 Krypton
4 Move the voltage switch to the setting that most closely matches the local AC voltage. If your voltage falls
halfway between 2 settings, select the higher voltage. For example, if the 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.
INSTALLING A PLUG ON THE POWER CABLE
The power cable must be fitted with a grounding-type cord cap 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! The power cables must be undamaged and rated for the electrical requirements of all
connected devices.
Important! Powering through a dimmer system can damage the fixture.
1 Verify that the supply cable is undamaged and rated for the current requirements of all connected devices.
2 Plug the prepared power cable into the AC socket and a grounded AC power supply.
Installation
LOCATION AND ORIENTATION
The MAC 250 Krypton 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 Krypton in a location where:
• the fixture is at least 1 meters (39 inches) away from combustible materials
• the fixture is protected from rain and moisture
• there is at least 0.1 meters (4 inches) clearance around the fan and control panel
• there are no flammable materials nearby
RIGGING OR MOUNTING THE MAC 250 KRYPTON
Warning! Block access below the work area before proceeding.
The MAC 250 Krypton 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.
Wire Pin Marking Screw color
brown live “L” yellow or brass
blue neutral “N” silver
yellow/green ground green
Table 2: Plug wiring

Setup 9
The MAC 250 Krypton includes an omega clamp mounting bracket to which 1 or 2 rigging clamps (not
included) can be bolted. The clamp mounting bracket fastens to the base as shown with 1/4-turn fasteners.
Warning! Attach an approved safety cable to the attachment point provided in the base. Never use
the carrying handles for secondary attachment. Always use an approved safety cable.
The 1/4-turn fasteners are locked only when turned fully clockwise.
1 Verify that the clamps are in good 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 clamp mounting bracket.
2 Align the clamp mounting bracket with any 2 key slots on the base. Insert both locking pins into the slots and
turn both levers a full 1/4 turn clockwise to lock.
3 Verify 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.
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 Verify that there are no combustible materials or surfaces to be illuminated within 1 meter (39 inches) of the
fixture, and that there are no flammable materials nearby.
Connecting the serial data link
The MAC 250 Krypton has locking 3-pin and 5-pin data input and output sockets that are wired for
use with 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.
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 pin 3 cold, use a phase-reversing adaptor.
Figure 3: Clamp mounting bracket

10 MAC 250 Krypton
3 To terminate the link, insert a male 120 ΩXLR termination plug in the output of the last fixture.
TIPS FOR BUILDING A SERIAL 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 serial link exceeds 500 meters.
• Never use a “Y” connector to split the link. To split the serial 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 serial link.
• Terminate the link by installing a termination plug in the output socket of the last fixture on the link. The
termination plug, which is simply a male XLR connector with a 120 ohm, 0.25 watt resistor soldered
between pins 2 and 3, “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.

Control Panel 11
C ONTROL P ANEL
You set the address and personalities, read out data, and execute service utilities from the control panel.
Settings can also be changed remotely via the serial link with the Martin MP-2 uploader.
See also the control menu table starting on page 30.
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 Mode selection
The fixture has two DMX operating modes, 16-bit and 16-bit Extended. 16-bit Extended mode uses 17 DMX
channels, three more than the 14 DMX channels than standard 16-bit mode requires. 16-bit Extended mode
provides more precise control of the dimmer color, and focus settings. The DMX mode is selected using the
PSET option in the fixture control menu (see “Control menu” on page 30).
SETTING THE DMX MODE
1 Apply power to the MAC 250 Krypton. Press [menu] to enter the main menu.
2 Select PSET using the [up] and [down] keys. Press [enter].
3 Select 16BT for standard 16-bit mode, or 16EX for 16-bit extended mode.Press [enter].
4 Press [menu] to return to the main menu.
DMX Address selection
For independent control, each fixture must be assigned its own address and non-overlapping control
channels. Two MAC 250 Kryptons can share the same address if they are to respond identically: they will
receive the same instructions and individual control will not be possible.
SETTING THE DMX ADDRESS
1 Apply power to the MAC 250 Krypton. Press [menu] to enter the main menu.
2 Select AddR using the [up] and [down] keys. Press [enter].
3 Select an address (start channel) from 1 to 500 using the [up] and [down] keys. Press [enter]. Press [menu]
to return to the main menu.
Tailoring performance
MOVEMENT
The MAC 250 Krypton provides the three menus with options for optimizing movement to suit different
applications.
•PATI, the pan and tilt invert menu, allows you to swap the pan and tilt channels (SWAP>ON), invert pan
movement (PINV>ON), and invert tilt movement (TINV>ON). These options can be useful in situations

12 MAC 250 Krypton
where you want some fixtures to mirror the performance of others with the same DMX address, or when
fixtures are not oriented as programmed.
•PTSP, the pan/tilt speed menu, provides 3 settings: FAST, NORM and SLOW. NORM is best for
most applications. FAST provides better performance in applications where speed is most important.
•SCUT, the shortcuts setting which can be found under the PERS (personality) menu, determines whether
the color and gobo wheels scroll past open when changing positions. When set to ON, 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 SCUT is set to OFF.
DISPLAY
The display menu (PERS>dISP) determines whether the display remains lit or not. Select ON to have
the display remain lit, or OFF to extinguish the display two minutes after the last key press.
To flip the display for easier reading, press [up] and [down] simultaneously.
The display intensity setting (PERS>dINT) controls display brightness. You can select AUTO 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 (PERS>ALON) and DMX Lamp-Off
(PERS>DLoF).
There are three options for automatic lamp control: ON, OFF, and DMX. When ALON is OFF, the lamp
remains off until a lamp-on command is received from the controller. When ALON is ON, the lamp strikes
automatically after the fixture is powered on. When ALON is set to DMX, the lamp strikes automatically
when the fixture receives DMX data, and it extinguishes automatically 15 minutes after DMX data is lost.
When ALON is 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 effects how the lamp can be turned off. When dLOF is ON, lamp power can be
switched off by sending a DMX value from 248 to 255 on channel 1 for five seconds. When dLOF is OFF,
the lamp-off command will not work unless special conditions are met. Refer to the DMX protocol.
RESET
The fixture can be reset from the controller if DMX reset (PERS>dRES) is set to 5SEC. If DMX reset is
OFF, this command will not work unless special conditions are met. Refer to the DMX protocol.
DEFAULT SETTINGS
The fixture can be reset to its factory default settings by selecting dFSE>FACT>LOAd.
Information readouts
POWER-ON HOURS
Read the total number of hours the fixture has been on since fabrication (INFO>TIME>HRS>TOTL),
and the number of hours on since the counter was last reset (INFO>TIME>HRS>RSET). This can be
used to track maintenance intervals. Press [up] for 5 seconds while displayed to reset.
LAMP HOURS
Read the total number of lamp hours since fabrication (INFO>TIME>L HR>TOTL), and the number
of lamp hours since the counter was last reset (INFO>TIME>L HR>RSET). Reset this counter after
installing a new lamp. Press [up] for 5 seconds while displayed to reset.

Control Panel 13
LAMP STRIKES
Read the total number of lamp strikes (INFO>TIME>L ST>TOTL), and the number of lamps strikes
since the counter was last reset (INFO>TIME>L ST>RSET). Reset this counter when installing a
new lamp. Press [up] for 5 seconds while displayed to reset.
FIRMWARE VERSION
INFO>VER displays the firmware version number. The firmware version is also displayed briefly at
startup.
Test and service utilities
DMX READOUT
The DMX log (dMXL) menu provides useful information for troubleshooting control problems.
RATE 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.
qUAL 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 serial data link that are the
most common cause of control problems.
STCO displays the DMX start code. Packets with a start code other than 0 may cause irregular
performance.
The remaining options under dMXL display the DMX values received on each of the 13 channels, from
SHUT (shutter, channel 1) to EFSP (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 (MAN) provides commands for turning the lamp on (LON), turning the lamp off
(LoFF), and resetting the fixture (RST). It also permits you to position and move individual effects.
EFFECTS TEST
The test sequence (TSEQ>RUN) runs through all effects to provide a quick check of fixture performance.
Note: the test sequence does not automatically strike the lamp. Use MAN>LON and MAN>LoFF to
control lamp power. Press [menu] to stop the test.
FEEDBACK TOGGLE
Magnetic sensors monitor the positions of the color wheel, gobo wheel, and rotating gobos. If they detect an
error, the shutter closes while the effect resets. This feature can be disabled by turning effects feedback off
(UTIL>EFFb>OFF).
ADJUSTMENT POSITIONS
The adjustment menu (UTIL>AdJ) provides commands for positioning effects during mechanical
adjustment.
EFFECT CALIBRATION
With the calibration menu (UTIL>CAL), 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 (UTIL>dFOF) erases any offsets stored in memory.
CIRCUIT BOARD TEST
UTIL>PCBT executes a routine designed for testing the main circuit board. For service use only.

14 MAC 250 Krypton
UPLOAD MODE
The upload mode command (UTIL>UPLd) prepares the fixture for a software update. This command is
not necessary, however, as upload mode is engaged automatically by the uploader.

DMX-512 control 15
DMX-512 CONTROL
The MAC 250 Krypton is compatible with USITT DMX512 controllers. The full protocol is available in “DMX
protocol” on page 27.
The fixture has two DMX operating modes, 16-bit and 16-bit Extended. 16-bit Extended mode uses 17 DMX
channels, three more than the 14 DMX channels than standard 16-bit mode requires. 16-bit Extended mode
provides more precise control of the dimmer color, and focus settings. All other functions are identical. See
“DMX protocol” on page 25.This section briefly describes the DMX-controllable effects. The DMX mode is
selected using the PSET option in the fixture control menu (see “Control menu” on page 30).
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 turned off from the controller by sending the lamp-off command on channel 1 for 5
seconds. The lamp cannot be restruck for 8 minutes after being turned off. Note that the
lamp-off command may be disabled by the DMX Lamp-Off personality setting (PERS/dLOF).
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 for 5 seconds. Note that the DMX reset feature
may be disabled by the DMX Reset personality setting (PERS/dRES).
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.
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. 16-bit Extended mode provides finer tuning
on channel 5 of the color setting selected on channel 4.
GOBO ROTATION AND SELECTION
The MAC 250 Krypton has 7 indexed-rotation gobo positions plus an open position. Gobos can be indexed
(positioned at a defined angle), rotated continuously, or rotated and shaken (bounced). The gobo and the
type of movement are selected on channel 4 (channel 6 in 16-bit Extended mode) and the index angle or

16 MAC 250 Krypton
rotation speed are selected on channel 5 (channel 7 in 16-bit Extended mode). Fine tuning of this index
position or rotation is available on channel 6 (channel 8 in 16-bit Extended mode).
The gobo wheel can also rotate continuously in both directions at variable speed.
FOCUS
The beam may be focused from approximately 2 meters (6.5 feet) to infinity using channel 7. 16-bit
Extended mode provides finer tuning on channel 5 of the color setting selected on channel 4.
ROTATING PRISM
The prism is controlled using channel 8 (channel 10 in 16-bit Extended mode). It may be inserted and
removed from the light path. It rotates in both directions at varying speeds.
PAN AND TILT
Head pan and tilt are controlled on channels 9 to 12 (channel 12 to 15 in 16-bit Extended mode). The
course control channel sets first 8 bits (the most significant byte or MSB), and the fine channel sets the
second 8 bits (the least significant byte or LSB) of the 16-bit control byte. In other words, the fine channel
fine-tunes the position set by the course channel.
Speed control
TRACKING CONTROL
Tracking control for pan/tilt and the various effects is enabled by setting the speed channels, respectively 13
and 14 (channels 16 and 17 in 16-bit Extended mode) to 0.
With tracking control, the speed at which effects move is determined by the cross-fade time between two
positions or scenes. 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, movement speed is determined by the speed values on channels 13 and
14 (channels 16 and 17 in 16-bit Extended mode). This provides a way to control speed on controllers
without cross-faders. 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 must be 0.
BLACKOUT
When “blackout while moving” is selected on channels 13 and 14 (channels 16 and 17 in 16-bit Extended
mode), the shutter closes when the effect moves to make the transition invisible. The shutter opens when
the movement is complete.
PERSONALITY OVERRIDES
Channel 13 (channel 16 in 16-bit Extended mode) provides tracking values that allow you to override the
pan/tilt speed personality setting (PTSP in the control menu). Channel 14 (channel 17 in 16-bit Extended
mode) provides tracking values that allow you to override the shortcuts setting (SCUT in the control menu).
See the DMX table for details.

Optical configuration 17
O PTICAL CONFIGURATION
Gobos
The MAC 250 Krypton accepts up to eight metal or glass gobos with an outside diameter of 22.5 mm and a
maximum image diameter of 17 mm.
STANDARD GOBO CONFIGURATION
The MAC 250 Krypton provides 7 gobos as shown below.
CUSTOM GOBOS
For optimum performance, custom glass gobos for the MAC 250 Krypton should be made with the text,
logo, and similar artwork reversed on the coated side. Gobo types and dimensions are specified in on
“Gobos” on page 37.
REPLACING A GOBO
Danger! Intense heat. Avoid contact by persons and materials. The exterior of the fixture can get
very hot - up to 120° C (248° F). Disconnect the fixture from AC power and allow it to cool
for at least 45 minutes before handling.
Do not removing 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.
Position Gobo
1 Eclipse
2 Fat bar
3Fan
4 Happy Yins
5 Twisted triangle
6 Splash
7 Aflobet
Table 3: Standard gobos
Figure 3: MAC 250 Krypton gobo
1
2
3
4
5
7
6

18 MAC 250 Krypton
2 Remove the top cover of the fixture head using a flathead screwdriver to loosen the four quarter-turn
screws. The top and bottom cover look the same, but the top cover is found by checking if the text on the
back of the head is oriented correctly (top) or not (bottom) as illustrated here.
3 Turn the gobo wheel to access the desired position.
4 Remove the gobo holder from the gobo wheel.
5 Squeeze the ends of the retention spring together and remove. Push the gobo out from the back and
remove.
6 Orient the gobo as shown in “Gobo orientation” on page 19 and insert the replacement gobo into the holder.
Secure the gobo with the retention spring.
Minimum distance to flammMinimum distance to flamm
Minimum distance to illumina
Maximum ambient te
Exterior surface to

Optical configuration 19
7 Insert the gobo holder back in the gobo wheel using a small flathead screwdriver to lift the retaining blades.
8 Replace the cover before applying power.
GOBO ORIENTATION
Figure 4 shows the correct orientation for different gobo types. When in doubt, install gobos with the more
reflective side towards the lamp.
Coated Glass Gobos
Uncoated side towards stageCoated side towards lamp
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
gobo 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 gobo can be
seen when looking through the
uncoated side.
Textured side towards stage
Textured Glass Gobos
Smooth side towards lamp
Metal Gobos
Reflective side towards lamp Black side towards stage
Image/text Gobos
Reversed image towards
lamp
True image towards stage
Figure 4: Gobo orientation

20 MAC 250 Krypton
Color filters
STANDARD CONFIGURATION
The MAC 250 Krypton provides 12 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 120° C (248° F). Disconnect the fixture from AC power and allow it to cool
for at least 45 minutes before handling.
Do not removing 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 Remove the top cover. The top and bottom cover look the same, but the top cover is found by checking if
the text on the back of the head is oriented correctly (top) or not (bottom).Remove the top cover of the
fixture head using a flathead screwdriver to loosen the four quarter-turn screws. The top and bottom cover
look the same, but the top cover is found by checking if the text on the back of the head is oriented correctly
(top) or not (bottom) as illustrated here.
3
12
11
10
9
8
7
6
5
4
3
2
1
Position Color
1CTC
2Yellow 603
3Blue 104
4Pink 312
5Green 206
6Blue 108
7Red 301
8Magenta 507
9Blue 101
10 Orange 306
11 Dark green
12 Purple 502
Figure 5: MAC 250 Krypton color
Minimum distance to flammMinimum distance to flamm
Minimum distance to illumina
Maximum ambient te
Exterior surface to