Hitachi P50A202/D8UF, Service Manual

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D8UF
TABLE OF CONTENTS
3
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in HITACHI television
receivers have special safety-related characteristics.
These are often not evident from visual inspection nor can
the protection afforded by them necessarily be obtained
by using replacement components rated for higher
voltage, wattage, etc. Replacement parts which have
these special safety characteristics are identi fi ed in this
Service Manual.
Electrical components having such features are identi fi ed
with a ! mark in the schematics and parts list in this
Service Manual.
The use of a substitute replacement component which
does not have the same safety characteristics as the
HITACHI recommended replacement component, shown
in the parts list in this Service Manual, may create shock,
fi re, X-radiation, or other hazards.
Product safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current HITACHI Service
Manual. A subscription to, or additional copies of HITACHI
Service Manuals may be obtained at a nominal charge
from HITACHI Sales Corporation.
PLASMA TV
1. Follow the general caution recommendations from
“Safety precautions” section.
2. If necessary to replace Panel module, this work must
be started after the panel module and the AC/DC Power
supply becomes suf fi ciently cool.
3. Special care must be taken with the display area to
avoid damaging its surface.
4. The Panel Module shall not be touched with bare hands
to protect its surface from stains.
5. It is recommended to use clean soft gloves during the
replacing work of the Panel module in order to protect, not
only the display area of the panel module but also the
serviceman.
6. 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 panel.
They are not strong enough to withstand harsh outer
mechanical forces. Avoid touching the fl exible 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 fl exible printed circuits
are damaged, the corresponding addressed portions of
the screen will not be lit and exchange of the panel will be
required.
SAFETY NOTICE
USE ISOLATION TRANSFORMER
WHEN SERVICING
POWER SOURCE
This PDP television is designed to operate on 120
Volts/60Hz, AC house current. Insert the power cord
into a 120 Volts/60Hz outlet.
NEVER CONNECT THE PDP TV TO OTHER THAN THE
SPECIFIED VOLTAGE NOR TO DIRECT CURRENT
NOR TO 50HZ. TO PREVENT ELECTRIC SHOCK, DO
NOT USE THE PDP TELEVISION’S (POLARIZED) PLUG
WITH AN EXTENSION CORD, RECEPTACLE, OR THE
OUTLETS UNLESS THE BLADES AND GROUND
TERMINAL CAN BE FULLY INSERTED TO PREVENT
BLADE EXPOSURE.
CIRCUIT PROTECTION:
CAUTION:
Always replace the fuse mains fuse with one of
the same type and rating. See the parts list for details.