Harman Martin MAC Aura XB User manual

MAC Aura XB
FIELD ENGINEERING CHANGE ORDER
Procedure on solving the red dot issue, number 31072017, date 31-07-2017

Field engineering change order
2 of 9Procedure on solving the red dot issue, number 31072017, date 31-07-2017
Field engineering change order No. 31072017
PRODUCT
Type/model: MAC Aura XB
Description: LED moving head.
Serial number: All units before serial number 15021584696
Date introduced 31 July 2017
CHANGES
Issue: Field reports indicate that approximately 33% of the xtures have a red dot issue in the lens array when
the power cable is connected.
The issue is only of cosmetic matter. There is no risk of personal injury or damage to the product.
Typical fault signs: In the lens array, you can see one or two, very dimmed, red LEDs when the power cable is connected.
Solution: Rearranging the internal wiring. The black wires (LED power) are too close to the coil next to the
connector for the red LED string. Due to electrical induction, a current will ow in the LED circuit and the
LED will glow slightly. Follow the instructions in “Procedure on solving the red dot issue” on page 4
on how to rearrange the black wires in order to prevent the induction effect and thereby, resolve the red
dot issue.
Terms: We recommend that the xture is modied according to the “Procedure on solving the red dot issue” on
page 4 in connection with recommended preventive maintenance or standard repair.
ENCLOSED
Document: See the procedure on “Procedure on solving the red dot issue” on page 4.
Components: -
APPROVAL
Date: 31 July 2017
Approved by: Senior Manager, Global Product Support, Henrik Christensen

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3 of 9Procedure on solving the red dot issue, number 31072017, date 31-07-2017
Before you start
• Take precautions to prevent static electricity
damage of the product during the repair.
• Read the instructions in this document.
• Make sure that you have all the necessry tools
and materials ready before you start the repair.
• All repairs and electrical isolation tests must be
performed in accordance with local regulations.
• If you need materials, more information or
support, please call Global Technical Support on
[phone].

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4 of 9Procedure on solving the red dot issue, number 31072017, date 31-07-2017
Figure 2: Safety instructions
Procedure on solving the
red dot issue
General information
Safety instructions
Before you carry out service work, read this document.
Installation and service work must comply with local
regulations and accepted codes of good practice.
Observe the safety instructions in the user manual for
the product.
Figure 1: Tools
Tools
• ESD mat and wristband.
• Two cable ties: strap, black, high temperature,
2.5 x 98 mm.
• Plier.
• TX20 screw driver.
Figure 3: ESD mat and wristband
Take the necessary precautions
to prevent static electricity from
damaging the product during
modication or repair.

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Figure 4: Red dot issue
Rearranging the wires correctly
In the affected products, the black wires for LED power
(1) are placed too close to the coil (2) next to the red
LED string. See gure 5 and gure 6.
Due to electrical induction, a current will ow in the
LED circuit and the LED will glow slightly. To avoid this,
you need to place the wires otherwise.
The issue is only of cosmetic matter. There is no risk of
personal injury or damage to the product.
2
1
Figure 5: Position of wires
21
Figure 6: Position of wires

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Figure 8: Cutting the cable ties
3. Cut the cable ties (5 and 6).
NOTE! Be careful not to cut the cable.
NOTE! Make sure that the part of the cable ties
that have been cut off does not fall into the head
of the lamp.
5
6
Figure 9: Cutting the cable tie
5
Figure 7: Removing the back cover
1. Remove the four screws (3).
2. Remove the back cover (4).
3
4

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Figure 11: Positioning - before modication
4. Bundle the wire for the red LED string, connector
2, (7) with the 88V wires, connector PL1 (8).
NOTE! Make sure that the wires are placed as far
as possible from the coil (9).
5. Tighten the cable tie with a plier.
6. Cut the end of the cable tie.
NOTE! Make sure that the part of the cable ties
that have been cut off does not fall into the head
of the lamp.
Figure 12: Positioning - after modication
7+8
9
4
7+8
9
Figure 10: Cutting the cable tie
6

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Figure 13: Fastening the back cover
7. Place the back cover (11).
NOTE! Make sure that no cables are stuck when
placing the cover
8. Tighten the four screws (12) to 1.7 Nm.
12
11

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Information subject to change without notice. Harman Professional Denmark ApS disclaims liability
for any injury, damage, direct or indirect loss, consequential or economic loss or any other loss
occasioned by the use of, inability to use or reliance on the information contained in this document.
©2017 Harman Professional Denmark ApS. All rights reserved. Martin® and JEM® are registered
trademarks of Harman Professional Denmark ApS registered in the United States and/or other
countries. Features, specications, and appearance are subject to change without notice.
Harman Professional Denmark ApS • Olof Palmes Allé 18 • 8200 Aarhus N • Denmark • www.martin.com