Martin MAC 2000 Performance Service Manual

MAC 2000

Performance

service manual

INTRODUCTION

SCOPE

This document describes replacement and adjustment procedures for the MAC 2000 Performance framing and
zoom/focus modules. The procedures in the MAC 2000 Wash service manual may be used to service the
CMYC module, yoke, and base.

COMMENTS

If you have suggestions for improving this document, please send them to [e-mail].

PRECAUTIONS

RISK OF ELECTRICAL SHOCK

Warning! Always disconnect the fixture from AC power before and while servicing.

Removal of any cover exposes connectors that carry lethal electric currents. While working on a fixture under
power:

• Make sure the fixture is electrically grounded.

• Use a supply with ground-fault-interrupt protection.

• Never touch any connector that carries voltage.

• Be careful with tools that conduct electricity.

RISK OF UV RADIATION AND LAMP EXPLOSION

Discharge lamps emit harmful ultraviolet (UV) light that can cause eye and skin burns through direct exposure.
They also work under high pressure that occasionally causes them to explode. To eliminate the risk of injury
from the discharge lamp,

• Never operate the lamp with covers or lenses removed.

• Do not look directly into the light.

ELECTROSTATIC DISCHARGE

Printed circuit boards (PCBs), individual ICs, and Hall sensors can be damaged by electrostatic discharge
(ESD). To avoid damaging these ESD sensitive parts:

• Ensure that you and your tools have the same potential (ground) as the fixture before and when handling any of
the above components.

• Store PCBs in antistatic (electrically conducting) bags and store ICs in antistatic foam.

• Power off the fixture and allow capacitors do discharge before removing or inserting components on the PCB.

INDUCTIVE LOADS

Power off the MAC 2000 Performance before connecting or disconnecting step motors. Failure to do so can
damage the motor drivers.

Service notes 3

© 2000 Martin Professional A/S, Denmark

MAC 2000 Performance Service Manual

SERVICE NOTES

THREADLOCK

Threadlock is highly recommended on all machine screws except self-tapping (Taptite)
screws to prevent loosening. Threadlock should be reapplied if the screws are removed.

Two types of threadlock are available from Martin. For set screws, use Loctite 290, P/N

37020002. For all other screws, use Loctite 243, P/N 37021002. Both come in 10 ml tubes.

Be careful to avoid getting any material on shafts or axles. A needle and syringe makes an
idea application tool.

Long set screws: Start the screw and turn it until it contacts the shaft. Back the screw 2
turns, apply a small drop or 2 of Loctite 290 to the threads, and then tighten the screw as
you normally would.

Short set screws: Back the set screw out of the adaptor until 2 threads stick out of the
shaft. Apply a small drop or 2 of Loctite 290 to the threads, and then tighten the screw
within 60 minutes.

Other metric screws: Apply a drop of Loctite 243 (blue) to 3 or 4 threads, or spread a thin
stripe with a syringe, before starting the screw.

SELF-TAPPING SCREWS

The reuse of self-tapping “Taptite” screws is not recommended as these screws are
designed to cut threads and can strip existing threads when reinserted. Change to metric
hardware of the same size when reinstalling parts originally held with Taptites.

If installing a new part without threads, use new self-tapping screws. Do not use old
taptites to cut new threads!

LUBRICATION

Silicone grease, P/N 37302002, “Silicon grease, clear, 100g”, is used, for example, to
lubricate brass bushings inside of pulleys and between moving metal plates such as the
motor bracket for color wheel 1 on the MAC 2000 Wash.

Slides are generally lubricated with the high viscosity silicone oil, P/N 37302005, “High
viscosity silicone oil, 200 ml, in applicator bottle.”

Bearings are lubricated with P/N 37302004, “Silicone oil, 200 ml, in applicator bottle”.

Module removal 4

© 2000 Martin Professional A/S, Denmark

MAC 2000 Performance Service Manual

FRAMING / IRIS / GOBO MODULE

MODULE REMOVAL

REMOVE FRAMING/IRIS/GOBO MODULE

1 Remove top head shell and lock the head horizontally.

2 Remove fastening screws as shown on each side.

3 Unplug the fan wires, framing/iris/gobo wires, dimmer cable (16), CMYC wires, and the

CMYC thermosensor (T) as shown.

4 Carefully lift the module out by the bridges.

1

2

2

2

33

4

4

5

6

7

1. fan connectors

2. framing/iris/gobo connectors

3. module bridges

4. fastening screws

5. dimmer connector

6. CMYC connectors

7. CMYC thermosensor connector

Module disassembly 5

© 2000 Martin Professional A/S, Denmark

MAC 2000 Performance Service Manual

MODULE DISASSEMBLY

SEPARATE THE FRAMING/IRIS MODULE

1 To avoid damaging the iris belt when removing

and replacing, remove the iris motor gear from

the motor shaft.

2 Remove the cable guard.

3 Align the framing rotation stop with the access

hole in the framing plate.

4 Pull the springed guide wheel levers back to

release the module, you can remove springs to

make this easier, and lift out the rotating assembly.

5 Installation is the reverse. Important note:

Avoid twisting the cable bundle when

replacing the rotating assembly

.

1. cable guard

2. framing rotation stop

3. framing wheel and iris

4. framing wheel rack

5. guide-wheel levers

6. framing plate

7. gobo module

1

2

4

6

5

3

5

Module disassembly 6

© 2000 Martin Professional A/S, Denmark

MAC 2000 Performance Service Manual

SEPARATE GOBO MODULE FROM FRAMING/IRIS

MODULE

1 Remove 5 torx screws from the module spacers. Do not remove the torx screws that

fasten the gobo rotation sensor PCB.

2 Unplug the gobo wheel sensor (29) and the gobo rotation sensor (28). Unplug the

gobo motors (1 and 2) from the connection print. Cut the strip tie securing the gobo

animation wheel motor and sensor.

3 Unfold the module.

1.gobo module

2. framing/iris module

1 2

Framing shutters 7

© 2000 Martin Professional A/S, Denmark

MAC 2000 Performance Service Manual

FRAMING SHUTTERS

REPLACE MOTOR

The Pozidrive motor screws are locked

with threadlock and can be difficult to

remove without stripping the head.Use

a PZ 0 screwdriver in excellent condi-

tion. Heating the screws well with a

soldering iron softens the threadlock

and makes removal easier.

1 Separate the framing/iris module.

2 Remove the brass discs and lift off the shutter blade. There is a small spring on the

back.

3 Remove the motor screws from the shutter side of the plate. Remove the motor.

4 Remove shutter arm from shaft.

5 Install the new motor and loosely place the shutter arm on the shaft, between the

stops.

1

2
3

4
5

6

1. shutter blade

2. brass discs

3. nylon slide assemblies

4. outside stop

5. shutter arm

6. inside stop

Framing shutters 8

© 2000 Martin Professional A/S, Denmark

MAC 2000 Performance Service Manual

ADJUST MOTOR

1 Set the shutter arm’s position along the shaft

to distance “A” (using a feeler gauge) or

distance “B” (using a calliper gauge) and

tighten one of the set screws just enough to

hold the adjustment.

2 Plug an extension cable between the

connection PCB and the head cable or PCB

output.

3 Apply power and cancel the pan/tilt reset by

pressing the “Menu” and “Enter” keys on the

control panel. Allow the reset to complete and

then navigate the control menu to UTIL / AdJ /

HEAd / bEAM / AdJ. Press the drive lever

against the inside stop and tighten the set

screws.

4 Check the adjustment with the “IN” and “OUT”

commands: when selected, the drive arm

should be about 0.5 mm (0.02 in.) from the

inside and outside stops, respectively. (If the motor turns backwards, the extension

cable is reversed at one end.)

Motor LA LB TA TB RA RB BA BB

Socket/Wire 345678910

Blade position upper lower upper lower

Distance “A” 1.2 mm 0.15 - 0.2 mm 1.2 mm 0.15 - 0.2 mm

Distance “B” 6.2 mm 5.15 - 5.2 mm 6.2 mm 5.15 - 5.2 mm

RBRA

BB

BA

LALB

TB

TA

A

B

Framing shutters 9

© 2000 Martin Professional A/S, Denmark

MAC 2000 Performance Service Manual

REPLACE SHUTTER BLADE

1 Remove the rectangular guide from each

sliding nylon assembly. Place the sliding

assembly on the shutter arm.

2 Position the shutter blade over the sliding

assemblies.

3 Press the rectangular guides into the slots and

onto the brass sleeves.

4 Place the brass discs over the rectangular

slides with the countersink up.

5 Align everything and insert the screws.

Tighten securely.

6 Flip the wheel over and hook the spring onto

the shutter blade pin.

Framing rotation 10

© 2000 Martin Professional A/S, Denmark

MAC 2000 Performance Service Manual

FRAMING ROTATION

REPLACE MOTOR OR GEAR

1 Separate the gobo module from the

framing/iris module.

2 Remove the rack from the framing wheel as

shown here or separate the framing/iris

module. Loosen 2 set screws and pull the gear

assembly off the motor shaft.

3 Remove and unplug the motor.

4 Arrange the nuts on the new motor and turn it

so the socket faces away from you. Note that

the nuts between the motor and the plate are

oversized and used as spacers only.

5 Place the module over the motor as shown and

replace the screws loosely.

6 Put the gear assembly on the motor shaft but

do not tighten. Put the framing wheel back in

the framing module, or, replace the rack using

new M3 x 12 CS Torx screws (P/N 08050801) to

replace the taptites.

7 Position the frame rotation motor so that there

is a paper-thin gap and the slightest amount of

play between the motor gear and the rack.

Tighten the motor screws and verify that the

framing wheel turns smoothly with even

resistance through its range.

8 Center the motor gear on the rack and tighten

both set screws.

9 Plug in the new motor and reassemble the

module.

ADJUSTMENT

Frame rotation is electrically indexed: no mechanical adjustment is required.

Iris 11

© 2000 Martin Professional A/S, Denmark

MAC 2000 Performance Service Manual

IRIS

REPLACE IRIS

1 Separate the framing/iris module and place

the wheel with the shutter blades up.

Remove the bottom and right shutter

blades and partially remove the top blade to

access the 3 iris screws.

2 Remove 3 screws from iris.

3 Turn the wheel over and remove 4 screws

from iris drive plate. Lift out the iris.

4 Insert the new iris with the drive lever at 1

o’clock as shown. Turn the module over,

align the holes, and fasten the iris with the 3

screws.