79RQT7751ReferenceMaintenance/Disc and card handlingThe precision parts in this unit are readily affected by theenvironment, especially temperature, humidity, and dust.Cigarette smoke also can cause malfunction or breakdown.To clean this unit, wipe with a soft, dry cloth.≥Never use alcohol, paint thinner or benzine to clean this unit.≥Before using chemically treated cloth, read the instructions thatcame with the cloth carefully.Observe the following points to ensure continued listening andviewing pleasure.Dust and dirt may adhere to the unit’s lens over time, making itimpossible to record or play discs.Use the DVD-RAM/PD lens cleaner (LF-K123LCA1, whereavailable) about once every year, depending on frequency of useand the operating environment. Read the lens cleaner’s instructionscarefully before use.∫ How to hold a disc orcardDo not touch the recordedsurface or the terminal surface.∫ If there is dirt or condensation on the disc[RAM] [DVD-R]≥Clean with an optional DVD-RAM/PD disc cleaner (LF-K200DCA1,where available).≥Do not use cleaners for CDs or cloths.[DVD-A] [DVD-V] [VCD] [CD]Wipe with a damp cloth and then wipe dry.∫ Handling precautions≥Do not attach labels or stickers to discs. (This may cause discwarping and un-balanced rotation, rendering it unusable.)≥Do not write on the label side with a ball-point pen or other writinginstrument.≥Do not use record cleaning sprays, benzine, thinner, staticelectricity prevention liquids or any other solvent.≥Do not use scratch-proof protectors or covers.≥Do not expose the terminals of the card to water, garbage or otherstrange things.≥Do not use the following discs:–Discs with exposed adhesive from removed stickers or labels(rented discs etc).–Discs that are badly warped or cracked.– Irregularly shaped discs, such as heart shapes.≥Do not place in the following areas:–In direct sunlight.–In very dusty or humid areas.–Near a heater–Where static electricity or electromagnetic waves occurSet the unit up on an even surface away from direct sunlight, hightemperatures, high humidity, and excessive vibration. Theseconditions can damage the cabinet and other components, therebyshortening the unit’s service life.Do not place heavy items on the unit.Do not use high voltage power sources. This can overload the unitand cause a fire.Do not use a DC power source. Check the source carefully whensetting the unit up on a ship or other place where DC is used.Ensure the AC mains lead is connected correctly and notdamaged. Poor connection and lead damage can cause fire orelectric shock. Do not pull, bend, or place heavy items on the lead.Grasp the plug firmly when unplugging the lead. Pulling the ACmains lead can cause electric shock.Do not handle the plug with wet hands. This can cause electricshock.Do not let metal objects fall inside the unit. This can cause electricshock or malfunction.Do not let liquids get into the unit. This can cause electric shock ormalfunction. If this occurs, immediately disconnect the unit from thepower supply and contact your dealer.Do not spray insecticides onto or into the unit. They containflammable gases which can ignite if sprayed into the unit.Do not attempt to repair this unit by yourself. If sound isinterrupted, indicators fail to light, smoke appears, or any otherproblem that is not covered in these instructions occurs, disconnectthe AC mains lead and contact your dealer or an authorized servicecenter. Electric shock or damage to the unit can occur if the unit isrepaired, disassembled or reconstructed by unqualified persons.Extend operating life by disconnecting the unit from the powersource if it is not to be used for a long time.Unit care Disc and card handlingSafety precautionsPlacementVoltageAC mains lead protectionForeign matterService79