Hitachi 55HDM71 - 55" Plasma Panel, Service Manual

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SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Plasma Display
July
2004 Digital Media Division
YK
No.006E
-1
55PMA550
55HDM71
(PW1)
SERVICE MANUAL
Be sure to read this manual before servicing. To assure safety from fi re, electric shock, injury, harmful radiation
and materials, various measures
have been
provided
for
in this HITACHI Plasma display
service manual
.
Be sure to read
all
cautionary items described in the manual to maintain safety before servicing.
Caution
1. Features --------------------------------------------------3
2. Speci
fi cations--------------------------------------------4
3. Service point
s
-------------------------------------------5
4. Component names -------------------------------------6
5. New
T
echnology
-----------
-----------------------------7
6.
Service Modes
---------------------------------------- 10
7. Troubleshooting--------------------------------------- 2
9
8
. Basic circuit diagram--------------------------------- 3
5
9.
Printed wiring board diagram ---------------------- 4
2
1
0
.Block diagram ----------------------------------------- 4
7
1
1
.Connection diagram --------------------------------- 4
9
1
2
.Wiring diagram -------------------------------
-
---------
50
1
3
.Disassembly diagram-------------------------------- 5
2
1
4
.Replacement parts list------------------------------- 5
5
Contents
1. Since
the
Panel Module and front Filter are made of glass, handl
e a
broken Module
and/or
Filter
with
sufficient
care
,
in order not to be injured.
2. Rep
air
work sh
ould not
be started
until
after the Panel Module and the AC/DC Power supply
have cooled
sufficiently.
3. Special care sh
ould be exercised in the proximity of
the display area in order not to damage its surface.
4. The Panel Module sh
ould
not be touched with bare hand
s, as this will
protect its surface from stains.
5. It is recommended to use clean soft gloves during the rep
air
work in order to protect not only the dis
play
area of the Panel Module but also
the technician.
6. The Chip Tube of
the
Panel Module
(
located
in the
upper left
corner
of the back
of the glass panel)
is very fragile; as well, the flat
cables connecting
the
Panel to
the
drive circuit PWBs are very weak
. Take
care not to damage these, otherwise, the panel will n
ever
light again..
Service Warning