Hitachi ULTRAVISION L42S504, Service Manual

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Caution:
Be sure to read this manual before servicing. To ensure safety from fire, electric shock, injury, harmful
radiation and materials, various measures are provided in this LCD TV. Be sure to read cautionary items described
in the manual before servicing. These servicing instructions are for use by qualified service personnel only. To
reduce the risk of electric shock, do not perform any servicing other than that described in the operating instructions
unless you are qualified to do so.
Service Warning
1. Replacement work should be started after the Panel Module and the AC/DC Power supply have become
sufficiently cool.
2. Special care should be taken when working near the display area in order not to damage its surface.
3. The Panel Module should not be touched with bare hands in order to protect its surface from blemishes and
damage.
4. It is recommended that you use clean soft gloves during the replacement work in order to protect not only the
display area of the Panel Module but also yourself.
Initial Edition 2010-2 v1
L42S504
HITACHI TV
HITACHI
Schematic Diagram……...………………………...………16
Connection Diagram……..……….………….……..……..31
Main Parts View.……..……….………………....…….......32
PCB Layout…………..………………………....……….....33
Exploded View…………..………………..…….................39
Parts List………...…..……..............................................41
Features…….……….…........................................……......3
Dimensions………..……..……………………………………4
General Specification...................................…………........5
Firmware Upgrade.………….………….……..………..........6
Adjustment…….…………..………..….………..….….….....7
Troubleshooting…………...…………………….…….........10
Block Diagram.........………………...………….………......14
Table of Contents
- NOTICE-
All warranty parts are provided through
Hitachi Customer Service.
All Servicers should call:
800-654-7013
Updated: 073010 OR