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MAC 2000 Wash Barndoors
user manual
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© 2003 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 35000558 Rev. B
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MOUNTING AND OPERATING THE BARNDOOR UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mounting the barndoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operating the barndoors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Updating the barndoor unit firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
REMOVING THE BARNDOOR UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
CHANGING THE LENS IN THE BARNDOOR UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
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4 MAC 2000 Wash Barndoors
M
OUNTING AND OPERATING THE
BARNDOOR UNIT
The barndoor unit is designed to be mounted on a MAC 2000 Wash fixture.
Before starting
The electric connection socket for the barndoor accessory was reversed on some MAC 2000 Washes
before S/N 4001816001 (you can find the serial number of your MAC 2000 Wash on the serial number label
underneath the base). Although the socket is coded, the barn door plug can be forced in backwards.
Damage to the electronics will occur if power is applied with the connection reversed.
To avoid damaging the barndoor´s electronics, check the socket´s orientation before installing and operating
the barndoors. The orientation can be checked by examining the triangles in the middle of the socket. When
installed correctly, the tips of the triangles point IN towards the lens as shown here.
If the triangles point away from the lens, you can contact your Martin Dealer and have them perform the
modification, or you can do it yourself:
1 Lock the head in the horizontal position with the top-side up.
2 Remove the left-front head side cover.
3 Loosen, but do not remove, the top screw for the connection socket.
4 Remove the bottom screw.
5 Work the socket free and turn it 180 degrees.
6 Place the u-shaped bracket on the bottom of the socket.
7 Position the socket in the top u-bracket and fasten.
8 Verify that the socket is squarely aligned and the triangles point in.
9 Replace the head side cover.
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Mounting and operating the barndoor unit 5
Mounting the barndoors
Warning For safety reasons we do not recommend that this procedure be performed while the
fixture is rigged.
1 Referring to the instructions in the MAC 2000 Wash user manual (P/N 35000114), set the personality
settings on the MAC 2000 Wash to match the lens that is installed in the barndoor unit. If the PC lens is
installed then use the control panel to set PERS>bdL>PC L. For all other lens, including the standard
diffuser lens, use the default setting, PERS>bdL>dF L.
2 Disconnect the MAC 2000 Wash fixture from power.
3 Lock the fixture head in the “top” horizontal position.
4 If present, remove the lens that is installed on the MAC 2000 Wash by unscrewing the four quarter-turn
screws, pulling the lens housing away from the fixture, and releasing the safety cable.
5 Attach the barndoor safety cable to the MAC 2000 Wash and lock it in place using the thumb-screw. Ensure
that the cable slack is kept away from the optical path.
TOP
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6 MAC 2000 Wash Barndoors
6 Push the barndoor unit into place so that the interface connector on the rotation assembly (at the rear of the
barndoor unit) connects correctly to its counterpart on the MAC 2000 Wash. Ensure that the cable slack is
taken up outside of the barndoor unit.
7 Hook the fold of safety-wire slack under the lip of the MAC 2000 Wash head cover as shown in the following
illustration.
8 Rotate the barndoor unit to the upright neutral position.
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Mounting and operating the barndoor unit 7
9 Open the barndoor blades to an angle that will allow you to access the four quarter-turn screws
10 Fasten the four quarter-turn screws. These are only accessible when the barndoor unit is in the neutral
position illustrated in step 8.
11 Apply power to the MAC 2000 Wash.
Operating the barndoors
To operate the barndoors the MAC 2000 Wash must have software version 1.3 (or later) installed.
The barndoors can be rotated, or opened and closed using DMX control signals. Five DMX channels are
allocated in the MAC 2000 Wash for barndoor control irrespective of whether or not they are connected to
the fixture (see the Protocol chapter in the MAC 2000 Wash user manual for details). This is to cover the
possibility that you rig and begin programming your MAC 2000 Wash and add barndoors to it later. If the
DMX channels were not already assigned, you would have to re-patch your console and therefore would
lose any programming already completed.
The position of the individual barndoor blades is monitored so that the system is always aware of their
position. The software will not allow movement of an individual barndoor blade through a position where
another blade is in the way, or through a position where the blade might come into contact with the MAC
2000 Wash. Similarly the MAC 2000 Wash will not tilt to a position that will allow the barndoors to come into
contact with the fixture.
Updating the barndoor unit firmware
A cable is supplied together with the barndoor unit that is only used when updating the firmware.
The version number of the barndoor firmware is displayed in the MAC 2000 Wash display when the unit is
powered up.
When updated firmware becomes available for the barndoor unit it will be made available for download from
the Martin Support site (http://www.martin.dk/service/service.asp). Instructions for performing the upload
procedure will also be made available on the support site.
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8 MAC 2000 Wash Barndoors
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EMOVING THE BARNDOOR UNIT
Warning For safety reasons we do not recommend that this procedure be performed while the
fixture is rigged.
1 Close all of the barndoor blades. Close the smaller left- and right-hand doors completely before closing the
the two larger blades.
2 Disconnect the MAC 2000 Wash fixture from power.
3 Lock the fixture head in the “top” horizontal position.
4 Manually rotate the MAC 2000 Wash Barndoors to the neutral position (shown in the following illustrations).
5 Open the barndoor blades to an angle sufficient to access the four recessed quarter-turn screws with a flat
head screwdriver.
6 Unscrew the four quarter-turn screws and detach the MAC 2000 Wash Barndoors from the MAC 2000
Wash fixture.
TOP
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Removing the barndoor unit 9
7 Loosen the safety-cable thumb-screw and detach the safety cable.
8 Do not operate the MAC 2000 Wash without a front lens or barndoors installed. If installing one of the
standard lenses, attach the safety wire and place the lens on the fixture. Lock it into place using the 4
quarter-turn screws.
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10 MAC 2000 Wash Barndoors
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HANGING THE LENS IN THE
BARNDOOR UNIT
The MAC 2000 Wash Barndoors are supplied with a diffuser lens. The lenses that are supplied with the
MAC 2000 Wash can be removed form their housings and installed in the barndoor unit, or you can order
the lens individually from your Martin Dealer.
The procedure for changing the lens in the barndoor unit is described in detail here and it is important to
follow the steps in precisely the order they are stated:
1 Remove the MAC 2000 Wash Barndoors from the MAC 2000 Wash as described in “Removing the
barndoor unit” on page 8.
2 Remove all four blades from the Barndoors using a Torx 20 screwdriver.
3 Remove the front and rear casings by unscrewing the Phillips screws at each corner.
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Changing the lens in the barndoor unit 11
The following diagrams show an overview of the lens chassis (J) and rotation assembly (I) of the barndoors
with labels at the key positions that are referred to in the following steps.
4 Move the rotation assembly (I) to a position where it is free of the sensor at position E.
5 Release the roller at position D by pressing down on the spring-loaded bolt.
B
A
C
E
D
F
G
H
I
J
E
D
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12 MAC 2000 Wash Barndoors
6 Release the roller at position F by pressing down on the spring-loaded bolt
7 Pull back on the spring-loaded clamp at position C and lift the rotation assembly (I) clear of the lens chassis
(J), being careful to avoid the sensor at position E, and carefully freeing the rubber drive belt from the rollers
at positions F, G and H.
8 The lens is held in place in the chassis (J) by four plates. To release each plate, push the sprung bolts from
underneath the lens chassis. This will release the pressure on the plates and allow you to pull them free.
F
C
E
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Changing the lens in the barndoor unit 13
9 Push the lens free of the chassis (J) and remove it.
10 Place the replacement lens into position in the chassis (J) being careful to avoid the rotation stop bracket
(marked with an arrow in the following illustration).
Note If you are installing the standard diffuser lens, the textured side should face the lamp and
the rotation assembly.
If you are installing the Super Wide angle lens the grid pattern must lie at approximately
45-degrees to the lens assembly.
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The lens should sit snugly against the four rubber-encased posts marked in the following illustration.
11 Install the four plates the hold the lens against the chassis (J) by pushing up on the spring-loaded bolts and
sliding the plates into position against the rubber-coated posts (indicated with an arrow in the following
illustration).
12 Hold the rotation assembly (I) over the lens chassis in the neutral position described in step 4 on page 11.
Gather the slack in the rubber drive belt of the rotation assembly in your fingers over rollers F, G and H,
ensuring that there are no twists, and place the rotation assembly onto the lens chassis (J). Do not press, or
force, the ring into place.
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Changing the lens in the barndoor unit 15
13 Keeping the tension in the drive belt, place it inside rollers F and H, and over roller G, as illustrated here.
Move rollers F or H to provide more slack if necessary.
14 Ensure that the rotation assembly (I) is free of the sensor at position D.
15 Pull back on the spring-loaded clamps at positions B and C simultaneously using your thumbs and the
rotation assembly (I) should fall into place and “click” in the grooves of the rollers.
F
G
H
D
C
B
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16 Push the roller (not the spring-load bolt) at position D until it is locked into position.
17 Push the roller (not the spring-loaded bolt) at position F until it is locked into position.
18 Move the rotation assembly (I) from stop-to-stop several times to ensure that it moves smoothly and without
hindrance. If this is not the case then the rotation assembly is probably not installed correctly; remove the
lens and repeat the re-assembly steps in this procedure.
19 Replace the front and rear casings by replacing the Phillips screws at each corner.
D
F
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Changing the lens in the barndoor unit 17
20 Replace the four barndoor blades. The smaller blades are the left and right blades, the larger ones are the
upper and lower blades.
21 Mount the barndoor unit on the MAC 2000 Wash using the procedure in “Mounting and operating the
barndoor unit” on page 4.
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