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100mm GRAPHICS RECORDER TECHNICAL MANUAL
HA249875
Issue 1 Jan 99
Section 3
Page 3 - 9
3.3.5 Backlight replacement
Notes:
It is recommended that the display unit be returned to the manufacturer for service. Users should
consider the following before attempting to follow the procedure below:
1.
Users who replace the backlight do so at their own risk. The manufacturer will not assume any
liability for modules, and will not warrant any modules which have been modified by the user,
including the replacement of the backlight using the procedure below. If it becomes necessary to
return the module to the manufacturer after an attempted repair, the cost of repairs will be charged to
the user.
2.
The work can cause a lowering of quality (performance). The manufacturers do not guarantee that
full quality will be obtained even if the procedure herein is followed exactly.
3.
Even the smallest particle of dust can cause shadowing, giving non-uniform brightness across the
area of the display. It is recommended that a clean-room or clean bench (at class C level) be used.
4.
To prevent damage caused by electrostatic discharge the use of an 'ion shower’ ioniser is recom-
mended.
WARNING!
Replacement of the backlight involves the handling of high voltage circuits. If replacement is not carried
out correctly, the module can present a shock, fire or other hazard, both during and after replacement.
SAFETY PRECAUTIONS
Ensure that the recorder is isolated from line power for at least 10 minutes before starting work. This will allow the
high voltages associated with the inverter to dissipate safely. Such a time period also allows the lighting unit and high
voltage circuitry to cool down after use, although the user should be aware that areas of high temperature might still
exist even after this period has expired.
In the case where the lighting unit is physically damaged, adequate care must be taken to avoid personal injury. It is
also likely that pieces of broken glass will not be extricable, resulting in lighting evenness quality problems once the
replacement unit is installed.
QUALITY CONSIDERATIONS
The display can be damaged by discharge of static electricity. Ensure that all suitable precautions are taken.
Finger contact with connectors may cause bad electrical contact to develop. It is recommended that finger cots or
plastic or latex gloves are used when carrying out this procedure.
Backlight replacement kit Part Nº
LA260283
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
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