Important safety instructions – Hitachi 42HDM12 User Manual
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IMPORTANT SAFETY INSTRUCTIONS
15. Monitors are designed to comply with the recommended 
 safety standards for tilt and stability. 
 Do not apply excessive pulling force to the front, or top, of the
 cabinet which could cause the product to overturn resulting in 
 product damage and/or personal injury. 
16. Follow instructions for wall, shelf or ceiling mounting as 
 recommended by the manufacturer. 
17. Under no circumstances remove the rear cover of your 
 monitor. 
 Never guess or take any chances with electrical equipment of
 any kind - it is better to be safe than sorry! 
18. After the monitor has been on for any length of time, you will 
 notice that the screen becomes warm. Please note that this 
 is normal. 
 Sometimes the screen might have some tiny bright or dark 
 spots. Please note that this is normal. 
19. To prevent scratches or damages to the Plasma screen, do 
 not knock or rub the surface with sharp or hard objects. 
 Clean the screen with a soft cloth moistened with warm 
 water and dry with a soft cloth. A mild soap may be used if 
 the screen is extremely dirty. Do not use harsh or abrasive 
 cleaners! 
20. Use a soft cloth to clean the cabinet and control panel of the
 monitor. When excessively soiled dilute a neutral detergent 
 in water, wet and wring out the soft cloth and afterward wipe
 with a dry soft cloth. 
 Never use acid/alkaline detergent, alcoholic detergent, 
 abrasive cleaner, powder soap, OA cleaner, car wax, glass 
 cleaner, etc. especially because they would cause 
 discoloration, scratches or cracks. 
 
 
 
 
 
 
 
 
Read before operating equipment 
Follow all warnings and instructions marked on this monitor. 
1. Read these instructions. 
2. Keep these instructions. 
3. Heed all warnings. 
4. Follow all instructions. 
5. Do not use this apparatus near water. 
6. Clean only with a dry cloth. 
7. Do not block any ventilation openings. Install in accordance
 with the manufacturer’s instructions. 
8. Do not install near any heat sources such as radiators, heat
 registers, stoves, or other apparatus (including amplifiers) 
 that produce heat. 
9. Do not defeat the safety purpose of the polarized or 
 grounding-type plug. A polarized plug has two blades with 
 one wider than the other. A grounding type plug has two 
 blades and a third grounding prong. The wide blade or the 
 third prong are provided for your safety. If the provided plug
 does not fit into your outlet, consult an electrician for 
 replacement of the obsolete outlet. 
10. Protect the power cord from being walked on or pinched 
 particularly at plugs, convenience receptacles, and the point
 where they exit from the apparatus. 
11. Only use the attachments/accessories specified by the 
 manufacturer. 
12. Use only with the cart, stand, tripod, bracket,
 or table specified by the manufacturer, or 
 sold with the apparatus. When a cart is used,
 use caution when moving the cart/apparatus
 combination to avoid injury from tip-over. 
13. Unplug this apparatus during lightning storms or when 
 unused for long periods of time. 
14. Refer all servicing to qualified service personnel. Servicing
 is required when the apparatus has been damaged in any 
 way, such as power-supply cord or plug is damaged, liquid 
 has been spilled or objects have fallen into apparatus, the 
 apparatus has been exposed to rain or moisture, does not 
 operate normally, or has been dropped. 
This product contains lead. Dispose of this product in accordance with applicable environmental laws. For product recycling and 
disposal information, contact your local government agency or the Electronic Industries Alliance at www.eiae.org (in the US) or the 
Electronic Product Stewardship Canada at www.epsc.ca (in Canada). For more information, call “1-800-HITACHI.” 
Do not place any objects on the top of the monitor which may fall or cause a child to climb to retrieve the objects.
PREVENTION OF SCREEN BURN 
Continuous on-screen displays such as video games, stock market quotations, computer generated graphics, and other fixed 
(nonmoving) patterns can cause permanent damage to monitor receivers. Such “SCREEN BURNS” constitute misuse and are NOT
COVERED 
by your HITACHI Factory Warranty.
PUBLIC VIEWING OF COPYRIGHTED MATERIAL 
Public viewing of programs broadcast by TV stations and cable companies, as well as programs from other sources, may require 
prior authorization from the broadcaster or owner of the video program material.
• This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights. Use of this 
 copyright protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited consumer uses only 
 unless otherwise authorized by Macrovision. Reverse engineering or disassembly is prohibited.