Martin RoboScan Pro 918 User manual

RoboScan Pro 918
user manual

©1998 - 1999 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 35000053, Rev. C

3
RoboScan Pro 918
section 1
Introduction
Safety precautions....................................................................................................................................................4
section 2
Setup
Unpacking ................................................................................................................................................................5
Installing or changing the lamp.................................................................................................................................5
Powering the fixture..................................................................................................................................................6
Installation ...............................................................................................................................................................6
Connecting the serial link.........................................................................................................................................7
section 3
Control Panel
Personality settings ................................................................................................................................................10
Protocol and address selection ..............................................................................................................................11
Readouts................................................................................................................................................................11
Manual control........................................................................................................................................................12
Stand-alone sequences..........................................................................................................................................12
Utilities....................................................................................................................................................................12
section 4
Operation
Martin RS-485 control ............................................................................................................................................14
DMX-512 control ....................................................................................................................................................14
Stand-alone control ................................................................................................................................................14
Controllable effects.................................................................................................................................................15
section 5
Basic Service and Maintenance
Accessing parts......................................................................................................................................................17
Changing voltage and frequency settings ..............................................................................................................18
Replacing fuses......................................................................................................................................................19
Changing the XLR pin-out......................................................................................................................................19
Updating software ..................................................................................................................................................19
Custom gobos........................................................................................................................................................20
Changing rotating gobos........................................................................................................................................20
Changing color filters..............................................................................................................................................21
Lamp replacement..................................................................................................................................................21
Optimizing lamp alignment.....................................................................................................................................21
Cleaning .................................................................................................................................................................22
Lubrication..............................................................................................................................................................22
section 6
Appendices
DMX Protocol ........................................................................................................................................................23
Error Messages......................................................................................................................................................28
Troubleshooting .....................................................................................................................................................29
Circuit Board Layout...............................................................................................................................................30
Specifications.........................................................................................................................................................31

4
Introduction
section 1
INTRODUCTION
Thank you for selecting the Martin RoboScan Pro 918. This scanner, with its highly efficient optical and thermal
design, provides quiet operation and crisp, bright output in a compact, easy-to-handle package.
This manual covers all models of the RoboScan Pro 918 and describes the features found in CPU software version 1.4.
The latest Pro 918 information and software is available from the Martin Professional web site at http://
www.martin.dk.
SAFETY PRECAUTIONS
The RoboScan Pro 918 is for professional use only. It presents potential risks due to electrical shock, heat and ultra-
violet radiation burns, lamp explosion, falls, high-intensity light, and fire. A thorough understanding of the dangers,
genuine concern for safety, and attention to detail are required to prevent accidents. Read this manual before power-
ing or installing the fixture, follow the safety precautions listed below and observe the warnings in this manual
and printed on the fixture, and always double check the safety conditions. If you have questions about how to
operate the Pro 918, please contact your Martin dealer for assistance.
•$OZD\VýGisconnect the fixture from AC power before:
- Changing the transformer or ballast settings
- Installing or removing the lamp
- Checking or replacing fuses
- Removing any cover or part
• Replace the lamp before usage exceeds the maximum rated service life or if the lamp becomes defective or worn out.
Allow the fixture to cool for 15 minutes before replacing the lamp.
• Keep all combustible materials (for example fabric, wood, paper) at least 0.5 meters (20 inches) away from the fixture.
Keep flammable materials well away from the fixture.
• For protection against dangerous electric shock, always ground (earth) the fixture electrically. Use only a source of AC
power that complies with local building and electrical codes. Do not expose the fixture to rain or moisture.
• Ensure that the air flow through fans and vents is free and unobstructed.
• When suspending the fixture above ground level, verify that the structure can hold at least 10 times the weight of all
installed devices and secure the fixture with an approved safety cable. Block access below the work area whenever
installing or removing the fixture.
• Refer any service operation not described in this manual to a qualified technician.
• The covers get very hot under normal operation: to avoid burns, locate the fixture where it cannot be accidentally
touched or bumped, and allow the fixture to cool before servicing.
• Do not illuminate surfaces within 1 meter of the fixture.
• Never place filters or other materials over the lens or mirror.
• Do not operate the fixture if the ambient temperature (Ta) exceeds 40° C (104° F).
• Do not look directly into the light from a close distance.
• Never operate the fixture without all lenses and covers installed: an unshielded lamp can explode without warning and
emits dangerous UV radiation that can cause burns and eye damage.
• Do not modify the fixture or install other than genuine Martin accessories and upgrade kits.

5
RoboScan Pro 918
section 2
SETUP
This section describes the steps required to prepare the RoboScan Pro 918 for operation.
UNPACKING
The RoboScan Pro 918 package includes:
• 1 5-meter, 3-pin shielded XLR control cable
• 1 3-meter, 3-wire IEC power cable (EU version only)
• 1 user manual
• 9 extra rotating gobos
• 1 spare rotating-gobo spring
The packing materials are carefully designed to protect the fixture during shipment - always use them or a custom
flight case to transport the fixture.
INSTALLING OR CHANGING THE LAMP
The RoboScan Pro 918 is designed to work with the Philips MSR-575/2, Philips MSD-575, or the Osram HSR-575/2
discharge lamp. Installing any other lamp may damage the fixture. The lamp holder is pre-adjusted at the factory; pre-
cise alignment may be necessary due to slight variations between lamps. The procedure is described on page 21.
WARNING!
Disconnect the fixture from AC power before proceeding. Always wear safety
goggles to protect your eyes and allow a hot lamp to cool for at least
15 minutes before removing it from the fixture.
1. The RoboScan Pro 918 must be cool and isolated from AC power. Remove the 2 screws (A) securing the
lamp assembly to the back plate. Gently pull out the assembly.
2. If changing the lamp, remove the old lamp from the socket.
3. Holding the new lamp by its ceramic base (do not touch the glass), insert it firmly and squarely into the lamp
socket. Clean the glass bulb with the cloth supplied with the lamp, particularly if your fingers touch the glass.
A clean, lint-free cloth wetted with alcohol may also be used.
4. Reinsert the lamp assembly and replace the screws.
5. Before turning the lamp on, reset the RLAH and RLST counters. See “Readouts” on page 11.

6
Setup
POWERING THE FIXTURE
WARNING!
For protection from dangerous electric shock, the fixture must be grounded
(earthed). The AC mains supply shall be fitted with a fuse or circuit breaker and
ground-fault protection.
1. Verify that the voltage and frequency settings match the local AC supply. These settings are printed on the
serial number label next to the control panel. If the settings do not match the supply, then the ballast and
transformer must be rewired as described under “Changing voltage and frequency settings” on page 18.
2. You may need to install a cord cap that fits your supply on the power cable. Following the manufacturer’s
instructions, connect the wires as shown below. Note: The table shows some possible pin identification
schemes; if the pins are not clearly identified, or if you have any doubts about proper installation, consult a
qualified electrician.
3. Verify that the supply cable is undamaged and rated for the current requirements of all connected devices.
Do not connect the Pro 918 to a dimmer system: doing so will damage the fixture.
INSTALLATIONý
Using the mounting bracket as a floor stand
WARNING
When standing the fixture with the lamp end down, the end panel must be a min-
imum of 75 mm (3 in) above the floor to provide adequate circulation.
1. If standing the fixture with the mirror end up, loosen the mounting bracket and align the pointer with the last
index line: the bracket shall not be placed any farther from the end. Tighten the clamps securely. Loosen the
swivel locks and set the angle to the extreme position, marked as “-”. Tighten both swivel locks.
2. If standing the fixture with the mirror down, slide the mounting bracket to the mirror end and set the pointer
near the last index line; the exact position is not critical. Tighten the clamps securely. Loosen the swivel
locks and set the angle in between the 60° and 75° marks. Tighten both swivel locks.
3. Stand the fixture on a stable platform away from publicly trafficked areas. Verify that the fixture is stable;
adjust the bracket if necessary.
Wire (EU) Wire (US) Pin Marking Screw (US)
brown black live “L” yellow or brass
blue white neutral “N” silver
yellow/green green ground green

7
RoboScan Pro 918
Rigging
The mounting bracket allows the Pro 918 to be rigged at any angle. The figure below shows the index position of the
balance point at different angles. Balancing the fixture makes it more stable and easier to work with, but it can be hung
out of balance if necessary.
WARNING!
Attach an approved safety cable to the eye hook.
1. Loosen the clamps (B) on each side of the mounting bracket, slide the
bracket to the approximate position, and partially tighten the clamps.
2. Loosen the swivel locks (E) and tilt the bracket to the desired angle.
Partially tighten the locks.
3. Bolt rigging clamps that can bear at least 10times the weight of the fix-
ture to the mounting bracket. 1 clamp may be bolted to the center hole
or 2 clamps may be bolted to the 2 outside holes (C). See page 31 for
clamps available from Martin.
4. Verify that the structure can bear at least 10 times the weight of all
installed fixtures, clamps, cables, auxiliary equipment, etc.
5. Block access below the work area. Working from a stable platform,
place the fixture on the rigging.
6. Install a safety wire that can bear at least 10 times the weight of the fix-
ture. Use the eye hook (D) to fasten the safety wire to the fixture.
Never
use the carrying handles or mounting bracket for secondary attach-
ment.
7. Tighten the rigging clamp(s) securely to the structure.
8. Fine-tune the position and the fully tighten the slide clamps and swivel
locks.
CONNECTING THE SERIAL LINK
The default pin-out is compatible with DMX-512.
The Pro 918’s 3-pin data sockets are configured for DMX controllers,i.e., pin 1 to shield, pin 2 to cold (-) and pin 3 to
hot (+). As many devices have 5-pin connectors or 3-pin connectors with reversed polarity on pins 2 and 3, adaptor
cables may be required.
1. Connect the controller’s data output to the RoboScan Pro 918’s data input. For a
• DMX controller with 5-pin output: use a cable with 5-pin male and 3-pin female connectors such as P/N 11820005.
Pins 4 and 5 are not used.
• DMX controller with 3-pin output: use a normal cable with 3-pin male and female connectors.
• Martin RS-485 Protocol controller: use a phase-reversing cable, such as P/N 11820006, with 3-pin male and female
connectors, or reconfigure the data sockets as described on page 19.
+60°,A0
+45°, B2
+30°,C0
+15°, C3
0°, D2
-15°, E0
>+75°, end
>-75°, end
-30°,E4
-45°, F4
-60°,G2
Phase-Reversing
Cable
Male Female
1
2
3
1
2
3
3-pin to 3-pin
Connections
P/N 11820006
Phase-Reversing
Cable
Male Female
1
2
3
1
2
3
4
5
3-pin to 5-pin
Connections
P/N 11820002
Phase-Reversing
Cable
Male Female
1
2
3
4
5
1
2
3
5-pin to 3-pin
Connections
P/N 11820003
Straight
Cable
Male Female
1
2
3
4
5
1
2
3
5-pin to 3-pin
Connections
P/N 11820005
Straight
Cable
Male Female
1
2
3
1
2
3
4
5
3-pin to 5-pin
Connections
P/N 11820004

8
Setup
2. Continue the link: connect the output of the fixture closest to the controller to the input of the next fixture.
Use a phase-reversing cable when connecting a DMX-standard (pin 3 +) device to a Martin-standard (pin 3
-) device.
3. Insert a male 120
Ω
XLR termination plug in the output of the last fixture on the link.
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.

9
RoboScan Pro 918
section 3
CONTROL PANEL
The 4-digit LED control panel allows you to set the address and personalities, read lamp hours and other information,
calibrate effects, control the fixture manually, and run stand-alone tests and demo programs. Most of these functions
may be performed remotely via the serial link with the MPBB1 Uploader.
The display can be flipped for easy reading by pressing the >↑@and >↓@keys simultaneously. The intensity is adjustable
and the display can be set to go out 2 minutes after the last key-press.
The DMX or Martin address, depending on the protocol setting, and any error messages are displayed when the
RoboScan Pro 918 is turned on. To enter the menu, press >MENU@ï Use the >↑@and >↓@keys to move within the menu.
To select a function or submenu, press >ENTER@. To escape a function or menu, press >MENU@.
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10
Control Panel
PERSONALITY SETTINGS
* Setting may be overridden via DMX. See protocol for details.
Personality Path Options Effect (Default settings shaded.)
Pan/tilt speed PTSP FAST Optimize mirror movement for speed.*
SLOW Optimize mirror movement for smoothness.*
Pan/tilt swap PATI/SWAP ON Map DMX pan control to tilt channel and vice versa.
OFF Normal pan and tilt control.
Pan inverse PATI/PINV ON Reverse DMX pan control, right Æleft.
OFF Normal pan control, left Æ
ÆÆ
Æright.
Tilt inverse PATI/TINV ON Reverse DMX tilt control, down Æup.
OFF Normal tilt control, up Æ
ÆÆ
Ædown
Tracking algorithm SPEC/TRAC/MOdE MOd1 Absolute delta value algorithm (for most controllers)
MOd2 Real delta value algorithm
Tracking samples SPEC/TRAC/CAL 1-10 Tracking mode sample level - default is 6. Higher levels give
smoother movement but slower acceleration.
Fixture type SPEC/FTYP PRIS Operate with rotating prism.
FROS Operate with optional variable frost.
Display On/Off SPEC/dISP ON Display stays on.
OFF Display goes out 2 minutes after last key press.
Display intensity SPEC/dINT 10-100 Adjust display intensity.
DMX lamp off SPEC/dLOF ON Enable DMX lamp off command.
OFF Disable DMX lamp off command.*
DMX reset SPEC/dRES ON Enable DMX reset command.
OFF Disable DMX reset command.*
Automatic lamp on SPEC/ALON ON Lamp strikes automatically within 90 seconds of power on.
OFF Strike lamp from controller.
Automatic protocol
detection SPEC/AUTO ON Enable automatic protocol detection.
OFF Disable automatic protocol detection.
Shortcuts SPEC/SCUT ON Color wheels and fixed-gobo wheel turn the shortest
direction.*
OFF Wheels turn same direction.*
DMX macros SPEC/dMAC ON Enable DMX-selectable macros and pulsating effects.
OFF Disable DMX-selectable macros and pulsating effects
Fixed gobo mode SPEC/gMOd FIX Static gobo wheel steps between full positions
SCRL Static gobo wheel scrolls continuously
Studio mode SPEC/MOdE NORM Optimize effects for speed.
STUd Optimize effects for silence.
Dimmer mode SPEC/dMOd NORM Normal dimming curve.
TUNG Simulated tungsten dimming curve.
Effects feedback SPEC/EFFb ON Enable feedback on color wheels, fixed-gobo wheel, and
rotating-gobo index.
OFF Disable feedback on color wheels, fixed-gobo wheel, and
rotating-gobo index.
Tilt motor select SPEC/PT NEW For units after S/N 402908-0000 (selected automatically).
OLD For units before S/N 402908-0000 (selected automatically).

11
RoboScan Pro 918
PROTOCOL AND ADDRESS SELECTION
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1. Apply power to the RoboScan Pro 918. Press the [MENU] key and then press [↑] or [↓] until the display
shows PSET. Press [ENTER].
2. Press [↑]or [↓] until the desired protocol appears on the display. Press [ENTER] to confirm.
3. Press [↑]or [↓] until the display shows dAdr (to set a DMX address) or MAdr (to set a Martin
address). Press [ENTER] to confirm.
4. Press [↑]or [↓] to select a DMX address from 1 to 512 or a Martin address from 1 to 31. Press
[ENTER] to confirm.
5. Press [MENU] to return to the main menu. Depending on the protocol selected, the DMX or Martin
address is displayed.
READOUTS
Usage readouts (TIME)
Read the total number of power-on hours (Po H), power-on hours since last reset (RPoH), total lamp hours (LA H),
lamp hours since last reset (RLAH), total number of lamp strikes (LSTR), and the number of lamp strikes since last
reset (RLST).
The resettable counters may be used to track overall usage and lamp life. To reset to zero, display the readout and then
press >↑@for 5 seconds.
DMX value readouts (dMXL)
Read the DMX start code (STCO) and DMX values received for each effect. This is an easy way to check if the fix-
ture is receiving the expected commands. This feature is not applicable in Martin mode.
Software version readouts (VER)
Read the version number of the CPU software (CPU), 2051 microprocessor (2051), and display module software
(dISP). The CPU software version is also displayed for a moment at power up.
Temperature readouts (SPEC/TEMP)
Read temperature at the main printed circuit board (PCb) and in the effects section (FX) in Celsius. Temperatures
below 25° C are shown as -25; temperatures above 100° C are shown as +100.
The temperature sensors are calibrated at the factory and adjustment should not be necessary. The following procedure
calibrates the sensors if they give no or faulty readings.
1. Allow the unit to cool to room temperature (powered off for at least 4 hours).
2. Measure the room temperature in Celsius. (To convert F° to C°, subtract 32° and then multiply by 0.555.)
3. Power up the unit and allow it to reset.
4. Press the [MENU] and [↓] keys at the same time and hold them for 3 seconds until “25” shows in the display.
5. Press the [↑] and [↓] keys until the display shows the temperature measured.
6. Press [ENTER] to save the setting.
Mode Martin DMX 1 DMX 2 DMX 3 DMX 4
Control Vector Tracking Tracking and/or Vector
Pan/tilt resolution 16 bit 8 bit 16 bit 8 bit 16 bit
Channels required 2 12 ìé 14 ìç

12
Control Panel
MANUAL CONTROL
Manual control (MAN)
The manual control menu permits you to do the following without a controller:
• reset the fixture (RST)
• turn the lamp on and off (L ON, LoFF)
• open, close, and strobe the shutter at 3 speeds (SHUT)
• control the dimmer (dIM)
• move the color wheels to each position and scroll them at 3 speeds (COL1, COL2)
• move the fixed-gobo wheel to each position (Fgob)
• move the rotating-gobo wheel to each position and rotate the gobos at 3 speeds (Rgob)
• control the focus (FOCU)
• control the iris (IRIS)
• insert and rotate the prism (PRIS) at 3 speeds, or, if a frost filter is installed, vary the frost (FROS)
• control pan and tilt (PAN, TILT)
Adjustment (AdJ)
The adjustment menu provides manual control for making mechanical adjustments. These should be performed by a
qualified technician. The menu allows you to reset the fixture (RST), turn on and off the lamp (LON, LoFF), con-
trol all effects (FX), and move the mirror to the home and extreme positions (PATI). The FX submenu allows you
to:
• open, close, and strobe the dimmer/shutter (dIM)
• move the color and gobo wheels through their positions (COL1, COL2, Fgob, Rgob)
• move the focus lens to its extreme positions (FOCU)
• open and close the iris (IRIS)
• insert and rotate the prism (PRIS)
STAND-ALONE SEQUENCES
Demonstration programs (dEMO)
This menu offers 2 preprogrammed demonstrations. Demo 1 shows each effect individually and in combination with
others. Pan and tilt are static. Demo 2 pans and tilts within a defined area and shows various effect combinations.
Before running demo 1, set the pan/tilt position (PAN, TILT) to a good location for viewing the effects and then
focus (FOCU) the beam. Select SEQ to run the demo. Demo 2 is similar but instead of defining a home position, you
define an area such as a screen or wall by setting the minimum and maximum pan and tilt positions (MINP, MAXP,
MINT, MAXT). Focus the beam in the center of the area.
Test sequences
Test sequence (TSEQ): Run a general test of all effects.
Printed circuit board test (SPEC/PCBT): This menu provides 4 tests of the circuit board for service use: TI,
T2, T3, and LEd.
Factory test (SPEC/FTST): This menu provides an effects test (ETST), a movement test (MTST), and a sensor
test (STST) used for quality control. The sensor test includes programs for testing sensors on the color and gobo
wheels (COL1, COL2, Rgob, and Fgob).
UTILITIES
Calibration (CAL)
The calibration menu allows you to adjust the effects to achieve total uniformity between fixtures: it is not a substitute
for mechanical adjustment. Select dimmer/shutter (dOF), color wheels (C1OF, C2OF), rotating-gobo wheel
(RGOF), focus (FOOF), or fixed-gobo wheel (FGOF) and adjust the effect’s offset with the arrow keys. Offsets are
adjustable from 1 to 255 for all effects except the fixed-gobo wheel, which is adjustable from 127 to 129. Press
>ENTER@ýto save the calibration.

13
RoboScan Pro 918
Reset default offsets (SPEC/dFOF)
Reset all calibrations to their factory defaults. Select dFOF and press [ENTER] when SURE is displayed, or press
>MENU@to escape.
Reset default personality settings (SPEC/dFSE/FACT)
Return all personality settings (not calibrations) to their factory defaults. Select FACT and press [ENTER] when
LOAD is displayed.
Custom configurations (SPEC/dFSE/CUS1, CUS2, CUS3)
Save and load 3 sets of custom configurations. To save a custom configuration, adjust the settings as desired, go to
CUS1, CUS2, or CUS3 and press [ENTER] when SAVE is displayed. To load a custom setting, select it and
press [ENTER] when LOAD is displayed.
Upload mode (UPLd)
Upload mode prepares the RoboScan Pro 918 to receive control software. It is normally engaged automatically when
using a Martin uploader. In certain circumstances, however, you may have to set upload mode manually as described
under “Updating software” on page 19.

14
Operation
section 4
OPERATION
This section describes the RoboScan Pro 918’s controllable effects and the options for customizing them for your
application. Selecting options from the menu is described in the previous section.
MARTIN RS-485 CONTROL
The Pro 918 may be controlled with the Martin 3032 controller with version 2.04 or later software. While the Pro 918
is not officially implemented in version 2.04, it may be set up and operated as a MAC 500.
For the fixture to respond, the protocol setting (PSET) must be set to Martin (MART) or automatic protocol detec-
tion (SPEC/AUTO) must be enabled. If automatic protocol detection is enabled, send one dummy command
before sending real commands.
DMX-512 CONTROL
The Pro 918 has 4 DMX control modes with different channel requirements and characteristics. Mode selection will
depend on the controller and your programming preferences.
Tracking control
Tracking is available in all 4 DMX modes. With tracking control, the controller calculates the positions along the path
between an effect’s starting point and it’s ending point. It uses the fade time to calculate the change (delta) of each
update or refresh, which the fixture “tracks.” For smooth movement with any fade time, the Pro 918 has a filter algo-
rithm that looks at several position updates (samples), and calculates the ideal speed.
This algorithm is adjustable to compensate for controllers that calculate position changes unevenly. In most cases the
default settings work well.
If movement is not satisfactory there are 2 parameters that can be adjusted. The first is the calculation method used and
is selected under SPEC/TRAC/MOdE. MOd1, the default, calculates speed based on the absolute value of the
change in DMX; it is the best choice with controllers that calculate intermediate positions that are close to the line of
travel. MOd2 uses the real value of the DMX delta to calculate speed and is better if the intermediate positions stray
significantly from the line of travel.
The second parameter is the number of position updates used to calculate speed. The level is adjustable between 1 and
10 under SPEC/TRAC/CAL. Increasing the number of samples increases the distance over which speed is calcu-
lated, making movement smoother but less responsive to sudden changes.
The ideal settings for both parameters will vary from controller to controller: experiment for best results. The real
value algorithm (MOd2) is recommended when using the Pro 918 with the Martin Lighting Director system.
Vector control
With vector control, available in DMX modes 3 and 4, the fixture is given just 1 position - the end position - and a
speed, which is set on a separate channel. For smooth movement, the fade time must be set to 0. With controllers that do
not have programmable fade times, vector control provides a way to set speed. Because the end point and speed are
known from the beginning, vector control results in smooth movement regardless of the fade time or the controller’s
processing power.
The speed channels allow vector control to be turned off, resulting in tracking control. In addition, they offer a “black-
out speed,” described below, and overrides of the PTSP (pan/tilt speed) and SCUT (shortcuts) personality settings.
8-bit versus 16-bit pan/tilt resolution
With 8-bit pan/tilt resolution, the pan and tilt are divided into 256 equal increments. Finer position control and
smoother movement is provided in the 16-bit modes, which divide the full pan range into 6400 increments and the full
tilt range into 1280 increments.
STAND-ALONE CONTROL
The Pro 918 has test and demonstration sequences that can be run from the control panel. See page 12 for details.

15
RoboScan Pro 918
CONTROLLABLE EFFECTS
All mechanical effects are reset to a “home” position when the fixture is powered up. They can also be reset via DMX
if necessary. Accidental resets can be prevented by turning DMX Reset (SPEC/dRES) off.
An on-the-fly position correction system automatically corrects the position of the color wheels, fixed-gobo wheel, and
rotating gobos. This feature can be disabled by turning Effects Feedback (SPEC/EFFb) off.
The Studio Mode setting (SPEC/MOdE) allows operation to be optimized for speed (NORM) or quietness
(STUd).
Lamp
With the default setting, the lamp remains off until a “lamp on” command is sent from the controller. Note: A strong
surge of electric 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 trip the main circuit breaker. If sending “lamp on” com-
mands to multiple fixtures, program a sequence that strikes lamps one at a time at 5 second intervals.
The Pro 918 automatically strikes the lamp within 90 seconds of being powered on if the Automatic Lamp On
(SPEC/ALON) setting is turned on. A delay determined by the address staggers lamp strikes to prevent excessive
current draw.
Lamp power can be turned off from the controller. Be careful: it is not possible to strike the lamp within 8 minutes of
having switched it off. Accidental lamp off commands can be prevented by turning DMX Lamp Off (SPEC/
dLOF) to off.
Pan and tilt
The mirror pans 180° and tilts 72°. Movement may be optimized for speed by setting the pan/tilt speed (PTSP) per-
sonality to FAST, or for smoothness by setting it to SLOW. The setting may be overridden on the speed channel in
vector mode. Setting the movement speed to “blackout” in vector mode causes the shutter to black out the light while
the mirror is moving.
The pan and tilt channels (DMX) can be inverted and/or swapped using the pan/tilt (PATI) menu.
Color wheels
The Pro 918 has 2 9-position-plus-open color wheels, yielding a
total of 100 possible combinations. In the standard configura-
tion the wheels combine in 67 useful ways that can be called on
1 DMX channel. The filters on color wheel 1 are easily replace-
able, allowing you to configure the color wheel to suit your
taste. See page 21 for details.
Both wheels can be scrolled, allowing for split color effects,
snapped to fixed positions, and continuously rotated in both
directions at different speeds. The 67 colors can be called ran-
domly on DMX channel 4.
The shortcuts (SPEC/SCUT) setting determines whether
the wheels take the shortest path to the next position or turn in
one direction only. The setting may be overridden on the speed
channel in vector mode.
Setting the color speed to “blackout” in vector mode causes the shutter to black out the light while the wheels are mov-
ing.
Focus
The beam may be focused from 2 meters (6.5 feet) to infinity. Depending on model, the beam angle is 17° or 23.5°.
Iris The iris closes from full open down to 10 percent. There are 6 variable/random pulsating iris effects callable on chan-
nel 9. These can be disabled by switching DMX Macros (SPEC/dMAC) off.
Color wheel 1
Pink312
Blue101
Cyan401
Purple 502
Yellow 604
Magenta507
Blue111
Green202
Red301

16
Operation
Fixed (static) gobos
The fixed-gobo wheel provides 9 metal gobos plus an open posi-
tion. It has 2 operating modes. In “fixed” mode (SPEC/
gMOd/FIX), the wheel steps between fixed positions and
shakes at variable speeds. In “scroll” mode (SPEC/gMOd/
SCRL), the wheel scrolls continuously, shakes at 1 speed, and
rotates at variable speed.
Setting the fixed-gobo speed to “blackout” in vector mode causes
the shutter to black out the light while the wheel turns from one
position to another. The Shortcuts (SPEC/SCUT) setting
determines whether the gobo wheel takes the shortest path to the
next position or turns in one direction only. The setting may be
overridden on the speed channel in vector mode.
Rotating gobos
The Pro 918 has 5 rotating gobo positions. Gobos may be rotated
in both directions at varying speeds or indexed to any position.
The function and gobo are selected on channel 5 and the velocity
or index position are selected on channel 6. Setting the rotating-
gobo speed to “blackout” in vector mode causes the shutter to
black out the light while the wheel turns from one position to
another and, if indexing is selected, while the gobo rotates
between positions.
To change the gobos, see “Changing rotating gobos” on page 20.
Rotating prism / variable frost
The 3-facet prism can rotate in both directions at varying speeds.
There are 8 preprogrammed macros that combine the prism with
rotating gobos on channel 10. These can be disabled by switching
DMX Macros (SPEC/dMAC) off. Setting the prism speed to
“blackout” in vector mode causes the shutter to black out the light
while the prism moves in and out.
An optional frost filter may be installed in place of the rotating prism to provide a variable frost effect. If the frost filter
is installed, the fixture type personality (SPEC / FTYP) must be set to “FROS” to enable the frost variation of the
protocol.
Dimmer / shutter
The mechanical dimmer/shutter system provides smooth, high-resolution 100 percent dimming, “instant” open and
blackout, random and variable strobe effects up to 23 Hz, and random and variable pulses in which the dimmer snaps
open and slowly dims or snaps closed and slowly opens. The pulse and random strobe effects can be disabled by
switching DMX Macros (SPEC/dMAC) off.
The Dimmer Mode (SPEC/dMOd) setting allows you to select between linear or simulated tungsten fade curves.
The fade time must be 0 to simulate tungsten dimming.
Fixed gobos
Rotating gobos

17
RoboScan Pro 918
section 5
BASIC SERVICE AND MAINTENANCE
The RoboScan Pro 918 operates under challenging conditions presented by heat, humidity, dust, and touring. It
requires regular cleaning and lubrication to keep performing at its peak. The maintenance schedule will depend heavily
on the application and should be discussed with your Martin technician. This section describes basic maintenance.
Refer any service procedure not described here to a qualified technician.
IMPORTANT!
Excessive dust, grease, and smoke fluid buildup degrades performance and
causes overheating and damage to the fixture that is not covered by the war-
ranty. If you do not feel completely competent to perform the service, consult
qualified service personnel.
ACCESSING PARTS
WARNING!
Disconnect the fixture from AC power before removing any cover.
Effects section
1. Disconnect the fixture from AC power.
2. Turn the locking pins (A) on the back plate 1/2 turn.
3. Pull the cover back and off.
4. To replace the cover, position the rails on the cover in
the grooves and slide the cover forward. Push the
locking pins (A) all the way in to lock.
Printed circuit board
1. Disconnect the fixture from AC power.
2. Remove the 4 screws (B) from the front cover plate
(C) with one hand on the section to prevent it from falling. Gently tilt the plate away from the body to access
the printed circuit board. Removing the wires is not necessary for most service procedures.
3. Thread the screws carefully when replacing the cover. Aluminum threads are easily stripped if screws are
overtightened or cross-threaded.
Ballast, transformer, and mains filter fuse
The ballast (E), transformer (F), and mains filter circuit
board (G) are accessed by removing the cover (D) from the
top of the RoboScan Pro 918.
1. Disconnect the fixture from AC power.
2. Remove the 4 screws from the plastic ballast/trans-
former cover (D) and lift it off.

18
BasicServiceandMaintenance
CHANGING VOLTAGE AND FREQUENCY SETTINGS
Operating at the wrong setting can result in poor output, greatly reduced lamp life, overheating and fixture damage.
EU version
1. Make sure the fixture is isolated from AC power. Access the transformer and ballast as described above.
2. On the transformer (F), move the BROWN wire to the terminal listed for your voltage. The terminal numbers
are printed in front of the connection tabs.
3. On the ballast (E), move the BROWN wire to the terminal listed for your voltage and frequency.
4. Replace the cover.
US version
IMPORTANT!
Fixtures wired for 100 or 120 volt operation shall have a 10 ampere main fuse
(P/N 05020025). Replace this with a 6.3 ampere fuse (P/N 05020020) if rewiring
for 230 or 250 volt operation.
1. Make sure the RoboScan Pro 918 is isolated from AC power. Access the trans-
former and ballast as described above.
2. Find the correct transformer setting for your AC supply in the table above. The
colors refer to the wires that enter the connection block at the bottom. The figure
to right shows the transformer connection block as seen from the top. On the
transformer (F), move the BROWN wire to the correct terminal.
3. On the ballast (E), move the BROWN wire to terminal 7 (60 Hz), or terminal 10
(50 Hz). The other terminals are not used because the ballast is fed 230 volts
from the transformer.
4. Replace the cover.
Local AC Supply Transformer Magnetic Ballast
Frequency Voltage Setting Terminal Setting Terminal
50 Hz 200-210 V 210 V 4 200 V / 50 Hz 7
50 Hz 210-220 V 230 V / 50 Hz 10
50 Hz 220-235 V 230 V 6
50 Hz 235-240 V 245 V / 50 Hz 12
50 Hz 240-260 V 250 V 8
60 HZ 200-217 V 210 V 4 208 V / 60 Hz 4
60 HZ 217-240 V 230 V 6 227 V / 60 Hz 7
Local AC Supply Transformer Ballast
Frequency Voltage Setting Terminal Setting Terminal
60 Hz
98 - 105 V 100 V red 227 V / 60 Hz
7
118 - 126 V 120 V orange 227 V / 60 Hz
220 - 240 V 230 V yellow 227 V / 60 Hz
240 - 260 V 250 V green 227 V / 60 Hz
50 HZ
99 - 105 V 100 V red 230 V / 50 Hz
10
118 - 126 V 120 V orange 230 V / 50 Hz
220 - 240 V 230 V yellow 230 V / 50 Hz
240 - 260 V 250 V green 230 V / 50 Hz
250 V
230 V
120 V
100 V
US version transformer
connections

19
RoboScan Pro 918
REPLACING FUSES
The RoboScan Pro 918 has 5 fuses. The main fuse is located in the power inlet and may be replaced without opening
the fixture. Note: The main fuse may need to be replaced with one of another value when rewiring the fixture for oper-
ation at a different AC voltage. The fuses for each of the 3 low-voltage power supplies are located on the printed circuit
board. If one of the circuit board LEDs does not light, one of these fuses may be blown. To replace:
1. Access the printed circuit board as described above.
2. Locate and replace the defective fuse with a time-delay fuse of the same rating. Fuse locations are shown
on the PCB layout diagram and their values are listed in the specifications.
The fifth fuse is located on the mains filter and power protection circuit board, located between the ballast and the AC
power inlet. If this fuse is blown there will be no power to the transformer and the fixture will appear dead, but there
will still be mains voltage on the ballast. To replace the fuse:
1. Make sure the RoboScan Pro 918 is isolated from AC power. Access the mains filter circuit board fuse as
described above.
2. Remove the fuse with tweezers or a similar tool. Replace only with a special fast-acting fuse of the
same rating (P/N 05021010).
3. Replace the ballast/transformer cover.
CHANGING THE XLR PIN-OUT
This procedure reverses the signal polarity of pins 2 and 3 on the
XLR connectors so that the fixture can be connected directly to
Martin RS-485 protocol devices. Optionally, a phase-reversing
cable may be used.
1. Access the printed circuit board as described above.
2. Position the jumpers on PL 233 and PL 234 for the desired XLR pin-out as shown.
UPDATING SOFTWARE
The latest software for the RoboScan Pro 918 is available from your Martin dealer and the Martin Professional web
site. Please read the update notes bundled with the software. Update software is uploaded to the RoboScan Pro 918
using a Martin uploader such as the MBPP1.
Normal upload
Connect the uploader to the fixture just like a controller. Under normal conditions, software can be installed from a
remote location - there is no need to set the RoboScan Pro 918 to boot mode. Please refer to the uploader manual for
further instructions.
Boot mode upload
If the data is corrupted during transmission, a check-sum error (CSER) will occur and after 15 seconds the fixture will
automatically switch to boot mode (UPLd) and be ready for a boot-mode upload as described below and in the
uploader manual.
If a software upload to the RoboScan Pro 918 is interrupted, the fixture must be powered off for at least 10 seconds
before a new upload can be attempted. When powered on, a check-sum error will occur and it will automatically go
into boot mode, ready for a second upload attempt. Select boot mode upload on the uploader.
If there is no functional software in memory, the fixture must be set to boot mode manually before starting the upload.
If the control panel works, select UPLd from the SPEC menu and confirm when SURE is displayed by pressing
[ENTER].
If the control panel does not work, boot mode can be engaged by moving jumper PL121 on the main circuit board to
pins 1 and 2 as follows.
1. Access the printed circuit board as described above.
DMX pin-outMartin pin-out (default)
PL234
PL233
PL234
PL233

20
BasicServiceandMaintenance
2. Move jumper PL121 to pins 1 and 2 (hard boot setting) as
shown. See also the circuit board layout diagram on page 30.
3. Apply power to the RoboScan Pro 918 and proceed with the
upload as described in the uploader manual.
4. After the upload, disconnect the fixture from AC power, move
the jumper back to the normal setting, and replace the circuit board section.
CUSTOM GOBOS
For best focus, custom gobos for the RoboScan Pro 918 should be made with the artwork reversed on the coated side.
See page 31 for gobo specifications.
Chrome-coated glass gobos are not recommended: they absorb more heat than enhanced aluminum gobos and are
likely to break or oxidize. The lifetime of chrome gobos is extremely short in the Pro 918; but, if used, their lifetime
can be extended somewhat by inserting the gobos with the coated side towards the lamp.
CHANGING ROTATING GOBOS
Without tools
1. Remove the effects section cover.
2. Turn the gobo wheel so you can reach the desired gobo. Turn the color wheel until the open position is over
the gobo.
3. Push the gobo and retaining spring out of the back of the holder. Avoid letting the spring and gobo fall into
the effects compartment.
4. Insert the new gobo. See below for proper orientation.
5. Insert the retaining spring with the bend facing out, away from the gobo. Working through the open position
in the color wheel, push the gobo and spring all the way down into the gobo holder.
With needlenose pliers
1. Remove the effects section cover as described above.
2. Turn the gobo wheel until the easiest access to the desired gobo position is obtained. Turn the color wheel
until the open position is over the gobo position.
3. Turn the gobo holder until you can see the tab on the holder retaining spring.
4. Grip the tab on the retaining spring with a pair of small (needlenose) pliers. Place your index finger over the
spring to prevent it from falling into the fixture. Open the spring and remove it from the gobo holder.
5. Remove the gobo holder from the bearing by pulling it forwards towards the mirror.
6. Push the gobo and gobo retaining spring out of the holder.
7. Insert the new gobo. See below for proper gobo orientation.
8. Insert the retaining spring with the bend facing out, away from the gobo. Push the gobo and spring all the
way down into the gobo holder.
9. Replace the gobo holder in the bearing. Do not force the holder into the bearing: it will go in easily if it is
installed straight.
10. Grip the retaining ring by the tab with the pliers. Place your thumb on the back of the gobo holder to press it
all the way down in the bearing and use your index finger to hold the other end of the spring on the holder.
Open the spring and place it in the groove.
PIN 1 È
PL121 PL121
PIN 1 È
hard boot settingnormal setting