Hello friends...i shared to some information.... To clean your speakers: • Be careful of the finish on your speakers, especially wood finishes. Pledge and other wood cleaners that contain silicone can leave residue in the wood grain. Most manufacturers simply recommend cleaning the cabinet with a soft cloth, perhaps lightly dampened by water. • For speaker grilles, a can of compressed air or even the upholstery brush attachment on your vacuum cleaner will do.
To clean your DVD player and/or receiver: • Use a dry cloth (no paper towels) or lint-free cloth on the front and side panels. Moisture can short out the circuitry. Be sure to wipe away from the vent holes to avoid brushing dust or debris into the component. • If you need to remove residue or fingerprints, you can slightly dampen the cloth with water, wringing out as much water as you can. Make sure that your DVD player and/or receiver is unplugged whenever you clean your components with a liquid substance. • For sensitive areas, such as around the front panel controls and buttons, use a small paint brush or can of compressed air. You can also use compressed air to clean harder-to-reach places, like the cooling fan behind the vents or the back of the component. • To clean the lens inside of a DVD player, try using a disc cleaner.
To clean your cables: • You should unplug and replug any cables you have connected to your system every few years to help keep the connection clean. Be sure to unplug the power cord on your DVD player and receiver before you start checking the connections. • If you happen to see any build-up, use a good contact cleaner, like DeoxIT®, to safely clean the connection and keep your home theater in great working condition.