5Precautions• Refer all work related to the installation of this applianceto qualified service personnel or system installers.• Prevent condensation from forming on the surface ofthe hard disk. Wait until the moisture evaporates in anyof the following cases:The recorder is moved to a place significantly differentin temperature or humidity.The recorder is moved outside of an air-conditionedroom.The recorder is placed in an extremely humid place.The recorder is placed in a room where a heater hasjust been turned on.• Consumable partsContact your dealer for replacement of the followingparts when the time comes:Built-in hard disk needs replacement after around30 000 hours of operation.Cooling fan also needs replacement after around30 000 hours of operation.Backup battery has a lifetime of around five (5) years inan ordinary environment.• Do not block the ventilation opening or slots on thecover.To prevent the appliance from overheating, place it atleast 5 cm (2 inches) away from the wall.Trademarks and Registered TrademarksAbout These Operating Instructions• Microsoft, Windows, Direct X, and Windows XP are reg-istered trademarks of Microsoft Corporation in the U.S.and/or other countries.• Adobe, Adobe logos, and Acrobat are registered trade-marks of Adobe Systems Incorporated in the U.S. and/or other countries.The WJ-HD88 comes with the following instruction manuals:Operating Instructions (This Document)The Operating Instructions explain how to operate the unitwith the buttons on the front panel.Network Operating Instructions (PDF)• Other names of companies and products contained inthese operating instructions may be trademarks or reg-istered trademarks of their respective owners.Refer to the Network Operating Instructions (PDF) fordescriptions of how to operate this unit using a PC.Adobe ® Reader is required to read the Network OperatingInstructions (PDF). When the Adobe® Reader is notinstalled on the PC, download the latest Adobe® Readerfrom the Adobe web site and install it.• Do not drop metallic parts through slots.This could permanently damage the appliance. Turnthe power off and refer servicing to qualified servicepersonnel.• Handle the appliance with care. Do not strike or shake,as this may damage the appliance.• We recommend that you note down your settings andkeep the notes. Power or battery failure may erase set-tings you entered.• Do not expose the appliance to water or moisture, nortry to operate it in wet areas.• Do not use strong or abrasive detergents when clean-ing the appliance body.Use a dry cloth to clean the appliance when it is dirty.When the dirt is hard to remove, use a mild detergentand wipe gently.• Do not operate the appliance beyond its specified tem-perature, humidity, or power source ratings.Do not use the appliance in an extreme environmentwhere there are high temperatures or high humidity.Use the appliance at temperatures within +5 °C to+45 °C (41 °F to 113 °F) and humidity +5 - 90 % (withoutcondensation).The input power source for this appliance is 220 V - 240V AC, 50 Hz.• A malfunction of RECORD or PLAY, or damage ordefect of recorded data, can occur due to machine fail-ure or problems. Any consequent damage or loss aris-ing from such problems is not subject to the warranty.