What if the LCD advertising machine has no sound?

With the continuous innovation of technology, more and more electronic products are well known, and people are more dependent on electronic products. Nowadays, advertising has entered a new era of digital and audio-visual, and the key key for enterprises to promote the expansion of the market has also locked in the "fifth-generation media" LCD advertising machine.

LCD advertising machine uses LCD display to play video advertisements, especially suitable for high-end brand integrated multimedia technology, to deliver a full range of product information, promotional information, etc. to consumers. Improve the appearance rate and display effect of products at the sales terminal, and stimulate impulse purchase.

Usually, everyone may have problems with LCD advertising machines. So, what should I do if there is no sound in the LCD advertising machine? The following Kang Weihai Xiaobian tells you what to do!

KONWHAI-wall advertising machine


LCD advertising machine has no sound analysis solution:

1. Inspection equipment

Open the back cover of the LCD advertising machine, use a multimeter to measure whether the power amplifier on the driver board is powered and normal. If the power amplifier is powered normally, next check if the connection cable of the speaker is normal?

2. Replacement parts

If the LCD advertising driver board amplifier is not normal, replace the driver board; if the speaker is not normal, replace the speaker. In addition, the connection line of the general LCD advertising machine speaker is the easiest to fall off if the connection is not strong. If it falls off, solder it with a soldering iron. If the horn is very loud, it is that the driver board is damaged and the driver board is replaced immediately.

3. After sales service

LCD advertising machine manufacturers have after-sales service, Shenyuantong technology advertising machine manufacturers after-sales service commitment: the whole machine one year warranty (screen saver for one year), free home service within one year.

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