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3.9
Replacing a bad LED
Preparation
First thing that needs to be done is to identify and marking the bad LED's while the ILite tile is operating. Than the LED module with
the bad LED has to be disassembled from the tile and the mask removed.
Never swap a LED module or LED driver or controller from an ILite tile, because measurement results of the
LED module are stored on the LED driver and controller. So, these boards are matched to each other during
the factory measurement process. Even a swap among the LED modules or LED drivers of the same tile
is not allowed. Neglecting this will result in poor video images displayed on the LED wall. The swapped
LED modules or LED drivers will become visible as quadrants with different light output. Always return the
complete ILite tile to factory for repair and re-measurement in case of a malfunction controller or one or more
malfunction LED modules or LED drivers.
W
ARNING
Hazardous product. Irritating to eyes and skin. Always use in a well ventilated area. Vapors may cause drowsi-
ness and dizziness. Avoid contact with skin and eyes. In case of contact with the eyes, rinse immediately with
plenty of water and seek medical advise.
C
AUTION
Hazardous product. Highly flammable. Always use in a well ventilated area. Keep away from sources of
ignitions. Do not smoke while working with soldering flux. Exclusive keep in original container tightly closed
at a cool, well ventilated and fireproof storage space.
C
AUTION
This is to prevent the LED's from being burned (the front will become brown).
C
AUTION
use static control precautions in servicing this equipment. Field service or maintenance personnel should be
properly grounded before servicing. Wear ESD wrist strap when servicing this equipment.
Necessary tools
•
Two solder irons with fine tips.
•
Solder removing wick.
•
Flux.
•
Mould and stick.
•
Solder tin.
•
Tweezer.
Necessary parts
New LED.
How to replace a bad LED from a LED module ?
1. Remove the bad LED by using two solder irons to heat up the four pins at the same time.
Caution:
Do not use temperatures higher than 350ºC.
R5976460 ILITE LED REPLACEMENT KIT 29/03/2007
:
SOLDERING FLUX (IF 2005 M).
:
SOLDERING FLUX (IF 2005 M).
:
Do not heat up a single pin longer than 3 seconds and do not use temperatures higher than 350ºC.
:
Electrostatic Sensitive Device (ESD). To avoid equipment damage from electrostatic discharge,
3. Replacing a bad LED from an ILite LED board
21
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