Traditional Culture Encyclopedia - Traditional festivals - Audio button function introduction

Audio button function introduction

LOUDNESS=Equal loudness (frequency compensation in small volume)

SURR=Surround

OK=Karaoke

DIRECT=Direct function, the signal is not zhi modification, after the signal is restored to the initial state of the sound recording dao

MAIN=Main menu

VOLUME=Volume adjustment

SOURCE=Source of the meaning of the audio, connected to the Dvd or VCD and other audio devices

SELECTOR=Selector is the input selector of the amplifier. When the input dvd blu-ray high definition and other signals to select the corresponding interface.

AUX=The port for auxiliary input. You can input other signals through this port, such as MP3 players, cell phones and other music signals through the connection line into this port to use.

TAPE= is the meaning of tape. The role in the amplifier is to connect the cassette deck, play the tape or record on tape.

CD=CD input port

TUNER=that is, radio tuner input

LD=Audio input socket, can be connected to a variety of audio sources, such as CD level, DVD player, LD is used in the past to use the large size of the laser disc player.

Expanded Information:

Precautions on the Use of Amplifiers

1, make sure that you use it within a safe voltage, and it is best to use a 220V AC regulated power supply or DC high voltage stabilized module power supply.

2, V +, V - error should not be greater than 1V, and positive and negative power supply, ground should be welded firmly, welded to confirm that there is no error before powering up.

3, amplifier IC power on the initial stage of normal, its stability relative to discrete components amplifier is poor, therefore, at least "boiled" or small volume release more than 10 minutes, to be able to stabilize and efficiently play its excellent performance.

4, in the production of amplifiers to be strictly a little grounded, ground with a multi-stranded thick copper wire is better or even available dual-bridge rectifier with floating ground technology to maximize its signal-to-noise ratio.

5, such as the local power grid pollution is serious, low-voltage grid connected to the welding machine, silicon rectifier and other electrical equipment, you can use the power supply filter, if it can not be eliminated, then use the power supply isolation transformer, but the power to have a margin.

6, to pay strict attention to the switching order of audio equipment, for the Hi-Fi amplifier IC production amplifier, keep in mind that the last boot, the first shutdown.

7, the newly purchased amplifier IC on the machine before, it is best to use the socket, do not weld, and fixed heatsink, after power on, such as serious heat, and output DC, remove the mail-order unit can be returned.

8, in order to avoid amplifier IC output DC damage to the speaker, be sure to install a speaker protector.

9, must be a good system equipment connected to earth. Because of the asymmetry of the three-phase load of the low-voltage distribution lines, will make the center line charged, and after connecting to the earth, the potential for zero, so as to improve the signal-to-noise ratio is very favorable.