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PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in HITACHI televisionPDP Module Handling
receivers have special safety-related characteristics. These are
often not evident from visual inspection nor can the protectionWhen there is need to replace a broken PDP module which is the
afforded by them necessarily be obtained by using replacementdisplaying device from the Plasma monitor unit, consider the
components rated for higher voltage, wattage, etc. Replacementfollowing:
parts which have these special safety characteristics are
identified in this Service Manual.1. When carrying the PDP module, two persons should stand at
both shorter-edge sides of the glass-panel and transport it with
Electrical components having such features are identified with atheir palms. Avoid touching the Flexible Printed Circuits or the
! mark in the schematics and parts list in this Service Manual.chip tube on the corner of the glass-panel. Handle only by the
surface of the glass panel. In case of some PDP modules,
The use of a substitute replacement component which does notelectrode repair is done by connecting between regular
have the same safety characteristics as the HITACHI-terminal with Cu tape and Cu wire. Please do not hook and/or
recommended replacement component, shown in the parts list indamage this repair line. If it is damaged, the module will not
this Service Manual, may create shock, fire, X-radiation, or otherfunction unless the glass-panel is exchanged with a new
hazards.glass-panel.
2. When carrying PDP module, watch surrounding objects, such
Product safety is continuously under review and new instructionsas tables, and also do not carry it alone since it may be
are issued from time to time. For the latest information, alwaysdangerous and it will be damaged due to excessive stress to
consult the current HITACHI Service Manual. A subscription to,the module (glass-panel).
or additional copies of HITACHI Service Manuals may be3. Please do not stand the module with the edge of the glass-
obtained at a nominal charge from HITACHI Sales Corporation.panel on the table since this might result in damage to the
glass-panel and/or flexible printed circuits due to excessive
stress to the module (glass-panel).
1. Follow the general caution recommendations from ?SafetyWARNING
precautions? section.Lead in solder used in this product is listed by the California
Health and Welfare agency as a known reproductive toxicant
42HDS69/HDT79/HDX99 - Plasma Monitor Unitwhich may cause birth defects or other reproductive harm
55HDS69/HDT79/HDX99 - Plasma Monitor Unit(California Health and Safety Code, Section 25249.5).
1. Follow the general caution recommendations from ?SafetyWhen servicing or handling circuit boards and other components
precautions? section.which contain lead in solder, avoid unprotected skin contact with
2. Since the Panel module and front filter are made of glass,solder. Also, when soldering make sure you are in a well
sufficient care shall be taken when handling the brokenventilated area in order to avoid inhalation of any smoke or
module and filter in order to avoid injury.fumes released.
3. If necessary to replace Panel module, this work must be
started after the panel module and the AC/DC Power supplySAFETY NOTICE
becomes sufficiently cool.USE ISOLATION TRANSFORMER
4. Special care must be taken with the display area to avoidWHEN SERVICING
damaging its surface.
5. The Panel Module shall not be touched with bare hands toPOWER SOURCE
protect its surface from stains.
6. It is recommended to use clean soft gloves during theThis plasma television is designed to operate on 120 Volts
replacing work of the Panel module in order to protect, not60Hz, AC house current. Insert the power cord into a 120 Volts
only the display area of the panel module but also the60Hz outlet.
serviceman.
7. The Chip Tube of the panel module (located upper left of theNEVER CONNECT THE PLASMA TELEVISION TO OTHER
back of the panel module) and flexible cables connectingTHAN THE SPECIFIED VOLTAGE OR TO DIRECT CURRENT
Panel glasses to the drive circuitry Printed Wiring BoardsAND TO 50HZ. TO PREVENT ELECTRIC SHOCK, DO NOT
(P.W.B.) are very weak, so sufficient care must be taken toUSE THE PLASMA TELEVISIONS (POLARIZED) PLUG WITH
prevent breaking or cutting any of these. If the Chip TubeAN EXTENSION CORD, RECEPTACLE, OR THE OUTLETS
breaks the panel module will never work, replacement for aUNLESS THE BLADES AND GROUND TERMINAL CAN BE
new plasma panel module will be needed.FULLY UNSERTED TO PREVENT BLADE EXPOSURE.
8. AV Digital Block, power supply and PDP driving circuit
P.W.B.?s are assembled on the rear side of the PDP module,
take special care with this fragile circuitry; particularly, Flexible
Printed Circuits bonded to surrounding edges of the glass
panel. They are not strong enough to withstand harsh outer
mechanical forces. Avoid touching the flexible printed circuits
by not only your hands, but also tools, chassis, or any other
object. Extreme bending of the connectors must be avoided
too. In case the flexible printed circuits are damaged, the
corresponding addressed portions of the screen will not be lit
and exchange of a glass panel will be required.
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