Common faults and treatment methods of KTV audio equipment

One, the projector fault:

The 1. phenomenon: the screen black screen, the indicator light is often bright, inside the fan rotating sound.

Processing method: this kind of fault is usually due to the long working time of the projector and the high temperature inside the machine, so the protection circuit is not working. Generally, it is not necessary to deal with such problems. If you wait for two minutes, the machine will start working on its own. Remember that you must never blindly cut off the power of the projector.

The 2. phenomenon: the screen blue screen, the indicator light is often bright, inside the fan rotating sound.

Processing method: such failure is caused by no signal input. It should check whether the video signal line behind the projector is in good contact. If it is good, check the video output socket behind the set-top box, and move the plug to troubleshooting.

The 3. phenomenon: the screen white screen.

Treatment methods: such problems arise when the projector is generally own fault, not in check, or pay directly for projector day treatment.

Two. Network failure:

1. phenomena: a song not sung, automatic cut to the next song.

Processing method: this kind of fault is usually caused by the busy network of the server, or the damage of a song, and it is generally not processed.

2. phenomenon: network interruption on the screen, please contact the manager.

Processing method: open the cabinet, see whether the bright lights of set-top box, and check the cable connector, plug it, solve the problem.

Three \ power amplifier failure:

The 1. phenomenon: the music has sound, the microphone is silent or the noise is big.

Treatment: replace the microphone.

The 2. phenomenon: there is no music, the microphone has sound.

Processing method: first, check whether it is in a quiet state. If normal, check the set-top box audio output plug or the power amplifier rear audio input plug, whether the line is broken or not, and troubleshooting.

The 3. phenomenon: the microphone, the music is silent.

How to deal with it: turn on the cabinet and see whether the power supply lamp is bright, and whether the signal input indicator is normal. If normal, check whether the connection line is broken or not.

Four. Touch screen failure:

The 1. phenomenon: the black screen, the indicator light is not bright.

Treatment: check the touch screen after the button switch, open it. If no response is disabled, pay day treatment.

The 2. phenomenon: the arrowheads fly, uncontrolled.

Processing method: restart the set-top box, the fault generally excluded, if the fault still, then the day shift process.

Five, functional panel panel name function understanding: 1, reverberation total volume: ECHO Vol. This knob can control the size of direct echo of reverberation echo, that is, the whole reverberation effect is much less.

3. the total volume of the microphone: MIC VOL the knob can control the volume of all the phones.

Note: under the total volume of the microphone, there are 3 microphone volume control knobs, which can control the volume of each microphone separately: MIC1 (microphone 1 volume) MIC2 (microphone 2 volume) MIC3 (microphone 3 volume), try not to adjust individually. 0 F4]%

3. music total volume: MUSIC VOL the knob can control the volume of the volume of the computer accompaniment, adjusting the knob can achieve the size of the sound of the song.

Six, tuning skills:

1. about the howling of the microphone.

Usually, the microphone whistle is caused by the excessive volume of the microphone. We need to take a closer look at whether the microphone is too large or the volume of individual microphone is too large. Another reason that causes the microphone to whistle is the sound quality of the microphone is too large. Listen carefully to the frequency of squealing. The harsh scream belongs to the MIC TREBLE (microphone high pitch), so we must reduce the microphone pitch. If it is a very low whistle, it feels that a little vibration is caused by too many MIC BASS (microphone bass), and the microphone bass must be reduced.

2., under normal circumstances, that is, during the business period, if guests want to adjust the light and weight of reverberation, try not to adjust the REPEAT or DELAY in the reverberation effect, as long as the ECHO (ECHO VOL) is increased or reduced. 2 Z8 S) J4 y6 H: B

3. the control of the volume of the computer music accompaniment does not cover the voice of the guests. Otherwise, the guests will feel hard, hard and hard to sing.

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