College】 【weak public broadcasting equipment for routine maintenance and use --- Power By 【China】 weak home network.

<br> scientific maintenance of broadcasting equipment, is the key to extending its life. .<BR> <BR> Here are some basic knowledge of routine maintenance: <BR> <BR> 1, broadcasting equipment should be the normal operating temperature is generally 18 ℃ ~ 45 ℃. .Temperature is too low will reduce the sensitivity of some of the machine; too easy to burn out the components, or to premature aging of components. .Summer, pay special attention to cooling and ventilation. .<BR> <BR> 2, broadcasting equipment, avoid direct sunlight, but also to avoid the near heat sources such as radiators. .<BR> <BR> 3, broadcasting equipment after use, the function key to reset. .If the function key does not reset the long term, its long stretch in Niu spring stress state, it is easy to cause a malfunction. .<BR> <BR> 4, before switching device power, the amplifier's volume potentiometer rotation to a minimum, this is the amp and speakers of the most effective means of protection. .At this time the power amplifier power amplifier is almost zero, at least in the misuse of the speaker when that does not mean harm. .<BR> <BR> 5, boot from the former open to the later, open the first CD, then open pre-and post-class, power amplifier when the volume of the rotary potentiometer to minimum. .Shut off when the first power amplifier, power amplifier amplification to completely shut down, this time you then turn off the front end device, and then a big impact on whether the current generation will not be a martingale and the amplifier and speakers. .Similarly when the take off surface of the volume potentiometer rotary amplifier to a minimum, shut off before or after release with the CD drive. .<BR> <BR> 6, the machine should be used. .Common but can extend the life of the machine, such as some with the Ministry of the motor body (tape deck, CD player, laser disc, etc.). .If the term does not turn, some parts will be deformed. .<BR> <BR> 7, to regular electricity. .In the case of long-term is not used, especially in the wet, hot season, the best power for half an hour a day. .This component can be used inside the work to get rid of the heat generated when the moisture, to avoid internal coil, the speaker voice coil, transformer and other damp mildew off. .<BR> <BR> 8, from time to time use a clean damp soft cotton cloth wipe surface of the machine; not, the application of the machine dust cover or cover cloth cover to prevent dust from entering. .<BR> <BR> 9, from the principles of electronics, any electronic equipment in working condition should not be charged to connect or disconnect the other device, which I do not think so much that friends can understand, live pluggable .active equipment is very dangerous, even the microphone is not advocating such a passive device charged pluggable. .Do not need to be reminded to pick up speaker amplifier driving line, because the speaker terminals are generally very close distance, the two speaker lines is closely parallel, often careless when wiring the speaker line short-circuit, the consequences .amplifier will be quickly destroyed. .While some power amplifier with protection circuit, but some level of pure HI-FI amplifier to improve sound quality, reduce unnecessary coloration, tend to save this part of the protective measures. .Therefore, "off and then wire" these words have already become fans of a rule must be observed. .<BR> <BR> 10, some fans pay attention to some of the heat in the amplifier will not button up the volume and put some music overflowing, the truth is just getting power amplifier components in a cold state machine, then let the high current will reduce the time .its life. .Some fans in the machine which just opened within half an hour just to put some soft music and listen to music with a moderate volume, after the machine warm up and then turn up the volume enjoy..