【 Weak current College 】 audio equipment operational pitfalls and safe use of points

First, add the power outlet FireWire (L) and zero line (N) reversed.
Second, unacknowledged power good he hurried received power or power-on.
III. electrical switches also open is connected to power.
Explanation:
Many electric is the location of the FireWire on fuse, connected backwards may cause the fuse after electric still live. It is best to use double fuse and double knife switch, you can also cut the FireWire and zero line. Type socket is directly attached to the electrical equipment, connected to the regulator and other protection devices determine without exception to the closed state from each device connected. Note that row is inserted and the power of good exposure. Post at least to confirm that the power amplifiers switch is closed and the smallest volume position. Some have a microphone input of the amplifier to the microphone volume down.
Important: wiring standard specifications; look over the device status, do not hurry to turn on the system.
4. power cord exposed vulnerable to tread on playing.
5, wire winding messy, signal cables and power cord is too close.
6. forget to confirm the wiring is correct to laminate.
Explanation:
The power cord when the add-in is going to take into account, you should remember to do make it difficult to be pulled out of work, leave some length instead reluctantly extension, avoid great perspective on the subject pull, as far as possible, avoid the smooth lines of the slit and angle; wire wrapped around a would not, however, will line up into use. Conductor power like antenna, neatly folded and parallel wires in each snap is better than mutually perpendicular wire interference. In particular, signal and power cables from entanglement of the worst; wiring is incorrect and unstable is a professional application of taboo, reliable wire may make the work of an unexpected opportunity to reduce significantly.
Important: do not ignore the connection.
7. do not confirm each device isthe volume off to the minimum position.
8. power-on sequence error. If you open the power amplifier.
Volume nine, when debugging too much at once.
Explanation:
A too large for the current General Assembly, the moment it is possible to get rid of equipment. Although professional equipment has a fairly comprehensive protection, but also do not gamble. Equipment sometimes protection circuit moves ago first damage. The above three types of negligence and error may be audio equipment in particular speaker burn out.
Important: exercise caution at every level.
10. use in an attempt to move, change of equipment.
11. working time to the effect that forget to monitor the status of the equipment.
12. equipment working exception not calmly pulled.
Explanation:
The equipment is working to make it not to move, not even try to feidong pause time; to monitor the status of observation equipment means any exception, there is the main note volume overload. There are exceptions to calmly take action quickly and accurately. [fenye]
How to use audio equipment
How to use audio equipment? this article here provides some useful recommendations for your reference:
1. takes note of the conditions for the use of the machine:
General instruction of the machine are listed in the conditions of use of the machine, such as:
1. ambient temperature:-10 ¡æ-40 ¡æ-+
2. relative humidity: 50%-80%
3. power voltage: 198V-242V
4. the power supply frequency: 50Hz — 60Hz
Specifically, requirements:
1. avoid temperature very low or very high environment machine, avoiding the direct rays of sunlight has the surface of the machine.
2. avoid damp environment using the machine in order to avoid premature failure within components or machine premature rusting.
3. use the front must confirm the local supply voltage corresponds with the machine.
Second, note the use of the environment of the machine:
1. avoid dust and vibration environment usingthe machine.
2. in the machine's surroundings should leave enough empty space to facilitate heat dissipation of the machine.
3. for power amplifier, should pay special attention to maintain cooling channel flow.
3. machine use of note:
1. in the audio system, you should be aware of the power-on, shutdown sequence. Power-on, you should first open sources, open in front of the device, and then power amplifiers; shutdown, you should close the power amplifier, and then close the audio sources, and other leading devices. Audio equipment if the volume knob, power on, power off before the volume knob off to a minimum. The aim is to reduce the power on, power off the impact of the speaker.
2. pull the plug is charged, plug the signal. Avoid the resulting shocks and damage to machines or speakers.
3. the machine to work if making an abnormal sound, immediately turn off the power to stop using. And please experienced qualified maintenance personnel maintenance. Its not on the machine, so the machines suffer more damage or cause electric shock accident.
Fourth, pay attention to the maintenance of the machine:
1. do not use volatile solvent-cleaning machines, such as gasoline, alcohol, etc, wipe the surface of the machine, dust with a soft cloth. But when the clean machine Shell to unplug the power supply.
2. the machine is generally not waterproof, water in case of wet, wipe with a dry cloth, and water stains dry before startup work.
3. do not place heavy objects on the machine to machine.
5. safe use of the machine:
1. never wet hands pulling, plug in the power plug to avoid electric shock.
2. the long-term when not in use, move the power plug from the power supply.
3. do not let the iron pins, clips, coins and other metal conductive material falling into the tank, so as not to damage the machine.
4. replace the fuse of the machine, you should strictly follow the requirements change, is strictly prohibited the use of non-requirement of substitutes.
5. machine in use, should be the case then place safety grounding.
6. the machine is strictly prohibited in the case of overload or short-circuit.
7. General in the civil power amplifierBack panel there are auxiliary power outlet, not through its connection, hair dryer, iron, electric appliances, it can only be used to connect to the audio device.
8. at constant pressure power amplifier, its output will have a high output voltage and the output pin is generally longer, therefore in use, it is important to ensure that the output pin of the safe and reliable.
6. Note the power line protection:
1. to avoid the power cord is treading, was a heavy squeeze.
2. do not pull the plug and brute force perverted, and power cords.
3. pull the plug from the socket, you should seize the plug and unplug it.
In short, modern audio equipment is a high-tech products, be sure to carefully maintained, safe use, and correct operation. For beauty, and avoid unexpected losses.