Take care of audio and video equipment! Maintenance script for home theater

Today Home theater The penetration rate of is quite high. Both high-end equipment and universal equipment should pay attention to maintenance during daily use. Now, let's introduce some common maintenance knowledge of home theater equipment for video lovers. Start from the details of daily life to maintain the delicate AV equipment at home.

1、 Startup and shutdown sequence of audio equipment

Audio equipment is started in order

Start up sequence: first turn on the DVD player, tuner, jukebox, equalizer, effector, karaoke machine, mixer, preamplifier, and finally the power amplifier.

Shutdown sequence: just opposite to the startup sequence, turn off the power amplifier and DVD player first, and then turn off loudspeaker box , do not cut off all at the same time Power Supply 。 Do not open the amplifier to connect the speaker and plug in the sound source equipment. All wiring, input socket and unplugging shall be carried out in the shutdown state to avoid damage to equipment.

2、 Maintenance of DVD player

The DVD player should also be carefully protected

1. Attention to heat protection: the DVD player should be placed in a place that is free from sunlight, away from other heat sources and heat radiation sources, and ventilated and dry.

2. Attention to moisture-proof: avoid being affected by large humidity changes, keep dry and clean, and prevent dust and moisture from invading the machine.

3. Vibration prevention: It should not be used in places with vibration. When the DVD player vibrates, it will affect the error correction function, increase the search burden, and accelerate the aging of the optical head. Handle with care during transportation, and do not knock or collide.

4. Avoid heavy pressure: do not put television The machine and other heavy objects are directly placed on the power amplifier or DVD player.

5. Prevention of interference: When receiving TV and radio, it is better to turn off the DVD to prevent noise and snowflake interference.

6. Do a good job of sanitation: When cleaning the machine, do not use volatile solvents and water, and use a dry cloth to gently wipe the machine.

7. Correct connection: When connecting or removing any connection, turn off the power first. This will prevent damage to the machine or other associated equipment.

8. Take care of the cable: When connecting or disconnecting the cable (including the AC power cord), you should grasp the connector for operation, but not the cable to avoid damage to the cable and electric shock. Non professional maintenance personnel shall not open the top cover of the machine to avoid electric shock and eye injury caused by the laser of the DVD player.

3、 Speaker maintenance

Speaker is the core part of home theater

Loudspeaker is the terminal of home theater sound, and the quality of the system has a great impact on the sound quality. In order to reduce the attenuation of lead wires on the signal, thick dedicated speaker wires should be used for connection as far as possible. When wiring, the positive and negative connections should not be reversed. When using, the volume of the power amplifier should not be turned on too much to avoid overload of the loudspeaker.

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