As a kind of electro-acoustic equipment, the home theater needs to pay attention to some special matters during the use. The perfect maintenance and maintenance can make the equipment work better and restore the most perfect audio-visual audio-visual effect. requires attention:
How to Maintain Home Theater Speakers
How to maintain the home theater projector
First, the audio equipment boot shutdown sequence
Boot sequence: first open the disc player, tuner, record player, equalizer, effects, karaoke machine, mixer, preamplifier, and finally power amplifier.
Shutdown sequence: the opposite of the boot sequence, first turn off the amplifier and DVD player, then turn off the speaker, avoid cutting all power at the same time. Do not open the amplifier to connect the speakers and plug in the source device. All wiring and input sockets and cable pulls should be turned off to avoid damage to the equipment.
Second, the maintenance of the DVD player
1. Pay attention to heat protection: The DVD player should be placed in the absence of sunlight, away from other heat sources and heat radiation sources, and in a ventilated and dry place.
2, pay attention to moisture: should be protected from the impact of large humidity changes, should be kept dry, clean, prevent dust, moisture into the machine.
3. Prevent vibration: It should not be used in places with vibration. When the DVD player vibrates, it will affect the error correction function, and at the same time increase the search burden and accelerate the aging of the bald head. Handle with care when handling, and do not knock, collide, etc.
4. Avoid heavy pressure: Do not place heavy objects such as TV sets directly on the amplifier or DVD player.
5, to prevent interference: When receiving TV, broadcast, it is best to remove the video disc to prevent noise and snow interference.
6. Do a good job of hygiene: When cleaning the machine, avoid using volatile solvents and water. Wipe the machine with a dry cloth.
7. Correct connection: When connecting or removing any connection operation, the power should be turned off first. This will avoid damage to the machine or other equipment associated with it.
8. Care for the cable: When connecting or disconnecting the cable (including the AC power cord), the connector should be grasped for operation, but the cable should not be operated to avoid damage to the cable and electric shock. Non-professional maintenance personnel should not open the top cover of the machine to avoid electric shock and laser damage to the eyes.
Third, the use and adjustment of AV amplifier
The AV amplifier is the core equipment of the home theater system. It has many functions and adjustments, so it is necessary to master the correct method of use. First of all, the power amplifier operation with Dolby Pro Logic decoding should know that only playing a DVD with Dolby Surround can restore the Dolby Surround sound field. At this time, the directional logic state can be selected by the surround mode switch, and the center mode can be selected according to the configuration of the speaker. For example, the standard mode is suitable for the ordinary non-full-range field speaker; the broadband mode is suitable for the center-mounted speaker, and there is no center speaker. , you should choose the phantom mode.
Ordinary stereo audio and video discs can only be processed by the digital sound field effect of the amplifier, that is, DSP amplifiers to simulate cinema effects, such as widescreen movies and mono movies. In addition to playing different styles of CDs or discs, AV amplifiers can simulate different sound field effects. Commonly there are concert halls, live, rock, church, jazz, stadium, etc., all of which can be selected by the surround effect selection switch. set up.
Fourth, the maintenance of the speaker
The speaker is the terminal of the home theater sound. The quality of the system has a great influence on the sound quality. In order to reduce the attenuation of the signal by the lead wire, the thick special speaker wire should be used as much as possible to connect. When the wiring is positive or negative, do not reverse the connection. When using, the volume of the power amplifier should not be too large to avoid overloading the speaker.
Five, should pay attention to the use of matters
For maintenance reasons, many friends will cover the home theater equipment with a dust cover. Most of the power amplifier's cooling holes are located at the top of the machine, so remove the dust cover when using it to improve the heat dissipation effect. Most home theater equipment has a low power during standby, typically less than 0.1 watts per hour, so home theater equipment can be placed in standby, especially in wet areas where standby current helps keep the inside of the amplifier dry. In thunderstorms, it is best to pull out the power plug of the equipment, just in case. If the equipment is not used for a long time, the battery inside the remote control should be taken out to prevent the battery from leaking and corroding the circuit board. Finally, be careful when cleaning. Do not use chemical solvents when cleaning the outside of the equipment. Use a dry, clean, lint-free cloth.
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