PT2-E/G AVC1-U
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
Electrical components having such features are identified with awith their palms. Avoid touching the Flexible Printed Circuits
11mar!k in the schematics and parts list in this Service Manual.or the chip tube on the corner of the glass-panel. Handle only
by the surface of the glass panel. In case of some PDP
The use of a substitute replacement component which does notmodules, electrode repair is done by connecting between
have the same safety characteristics as the HITACHI-regular terminal with Cu tape and Cu wire. Please do not hook
recommended replacement component, shown in the parts list inand/or damage this repair line. If it is damaged, the module
this Service Manual, may create shock, fire, X-radiation, or otherwill not function unless the glass-panel is exchanged with a
hazards.new 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 sice 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 codule 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
AVC20 - Audio Video Control Unitstress 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
32/42HDT20M - Plasma Monitor Unitwhich may cause birth defects or other reproductive harm
(California Health and Safety Code, Section 25249.5).
1. Follow the general caution recommendations from ?Safety
precautions? section.When servicing or handling circuit boards and other components
2. Since the Panel module and front filter are made of glass,which contain lead in solder, avoid unprotected skin contact with
sufficient care shall be taken when handling the brokensolder. Also, when soldering make sure you are in a well
module and filter in order to avoid injury.ventilated area in order to avoid inhalation of any smoke or fumes
3. If necessary to replace Panel module, this work must bereleased.
started after the panel module and the AC/DC Power supply
becomes sufficiently cool.SAFETY NOTICE
4. Special care must be taken with the display area to avoidUSE ISOLATION TRANSFORMER
damaging its surface.WHEN SERVICING
5. The Panel Module shall not be touched with bare hands to
protect its surface from stains.POWER SOURCE
6. It is recommended to use clean soft gloves during the
replacing work of the Panel module in order to protect, not onlyThis television receiver is designed to operate on 120
the display area of the panel module but also the serviceman.Volts/60Hz, AC house current. Insert the power cord into a 120
7. The Chip Tube of the panel module (located upper left of theVolts/60Hz outlet.
back of the panel module) and flexible cables connecting
Panel glasses to the drive circuitry Printed Wiring BoardsNEVER CONNECT THE TV TO OTHER THAN THE SPECIFIED
(P.W.B.) are very weak, so sufficient care must be taken toVOLTAGE OR TO DIRECT CURRENT.
prevent breaking or cutting any of these. If the Chip Tube
breaks the panel module will never work, replacement for a
new plasma panel module will be needed.
8. Signal, power supply P.W.B.?s and PDP driving circuits 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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ACEC
