Maintenance of audio equipment in home theater
1. The normal working temperature of audio equipment in home theater should be 18℃ ~ 45℃. Too low temperature will reduce the sensitivity of some machines; If it is too high, it is easy to burn out the components or make the components age prematurely. Avoid direct sunlight and be close to the heat source.
2. After using the audio equipment, the function keys should be reset. If it is not reset for a long time, the pull button spring will be in a stressed state for a long time, which is easy to cause dysfunction.
3. Before turning on the audio power supply, adjust the volume potential of the power amplifier to the minimum, which is one of the most effective protection means for the power amplifier and speakers.
4. Home theater audio equipment is turned on from front to back, that is, the CD player is turned on first, and then the front and rear stages are turned on. When the power amplifier is turned on, the volume potential of the power amplifier is adjusted to the minimum. Turn off the power amplifier first and then turn it off, so that the amplification function of the power amplifier is completely turned off. At this point, when you turn off the front-end equipment again, no matter how big the surge current is, it will not affect the power amplifier and speakers.
5. Home theater equipment should be commonly used. If it is not rotated for a long time, some parts will be deformed. In the case of long-term non-use, especially in humid and high-temperature seasons, it is best to electrify for half an hour every day. In this way, the heat generated by the components in the machine can be used to drive away moisture, internal coils, speaker voice coils, transformers and so on. It can be prevented from being damaged by moisture.
6. Clean the contacts every six months. Soon after metal is exposed to air, its surface will be oxidized. Even if the surface of the signal wire plug is plated with gold, it will be oxidized to a certain extent due to close contact with the fuselage plug for a long time, so it should be cleaned once every six months at most. Use cotton dipped in alcohol to smear contact lenses. When not in use, cover the machine with a dust cover or cloth to prevent dust from entering.
7. Don't turn on the power amplifier and the speaker cable, because the terminals of the speaker are generally very close, and the speaker cables are two closely parallel. When wiring, the speaker cable is often accidentally short-circuited, and the consequence is that the power amplifier will be burned out quickly.
8. Only play some light music and listen to music at moderate volume within half an hour after the machine is turned on, and then turn up the volume to enjoy it after the machine is warmed up.
9. Try to avoid overlapping machines. The most important CD player and amplifying part should be placed independently as far as possible, because overlapping placement will lead to resonance and affect the machine. When the loudspeaker plays music, the vibration of the air will make the home theater equipment follow the vibration, make the subtle information in the music vague, interfere with the transmission of various frequency bands and produce a kind of sound pollution. Therefore, it is best to put all kinds of home theater equipment on a stable shelf independently.
10. Other household appliances and computers should avoid sharing a power supply with the stereo. Even if put together, it should get power from other places. In addition, winding wires together will also make the wires absorb noise from each other and destroy the sound quality. Therefore, no matter whether it is the equipment or the connecting wire in the home theater, it should avoid interference from other electrical appliances or power cords.
Brand introduction of home theater
1, Philips Philips
Philips Electronics (China) Investment Co., Ltd./KOOC-0/89/KOOC-0/was established in the Netherlands, one of the largest electronics companies in the world and one of the most valuable brands in the world/KOOC-0/00.
2. Sony Sony
Sony (China) Co., Ltd., founded in Japan 1946, is a global leading brand of high-end images, a leader in information technology industry and a pioneer of portable digital products.
3.Hivi Hivi
The world's top multinational speaker and speaker manufacturer, the world-renowned Hi-End advanced speaker manufacturer, Guangzhou Haiwei Electric Appliance Co., Ltd..
4. Yamaha Yamaha
Yamaha Musical Instrument (China) Investment Co., Ltd. was established in 1887, a world-famous audio-visual brand and one of the largest musical instrument manufacturers in the world.
5. Samsung Samsung
Starting from 1938, South Korea, a fortune 500 enterprise, a leading enterprise in the field of global consumer electronics, a world-famous multinational company, and Samsung Group.
6、JBL
Harman (China) Investment Co., Ltd. was established in the United States 1946. It is a global manufacturer of audio and infotainment products and one of the largest professional speaker manufacturers in the world.
The above tells you some matters needing attention in the maintenance of home theater audio equipment. At the same time, I also introduced some home theater brands to you. I hope Bian Xiao's introduction will be helpful for you to buy home theater audio equipment.